CN102608133B - Substance component content evaluating instrument and method - Google Patents
Substance component content evaluating instrument and method Download PDFInfo
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- CN102608133B CN102608133B CN 201210098021 CN201210098021A CN102608133B CN 102608133 B CN102608133 B CN 102608133B CN 201210098021 CN201210098021 CN 201210098021 CN 201210098021 A CN201210098021 A CN 201210098021A CN 102608133 B CN102608133 B CN 102608133B
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Abstract
The invention discloses a substance component content evaluating instrument and a method thereof. The evaluating instrument comprises a shell body, wherein a tested substance clamping detection device is arranged on the shell body; the tested substance clamping detection device comprises two clamping ends for clamping the tested substance; the two clamping ends are arranged oppositely; one of theclamping ends is connected with a chucking device; the chucking device is used for moving the clamping end connected with the chucking device so as to clamp the tested substance between the two clamping ends; and a substance component content detection circuit is arranged in the shell body. The evaluating instrument provided by the invention is low in cost, light in weight and strong in portability. The evaluating instrument and evaluating method provided by the invention can be used for semi-quantitative and quantitative rapid detection of the tested substance component and content accurately and are particularly applicable for goods quality evaluation; a basis for identifying the true and false goods is provided for customers and primary-level quality control personnel so as to prevent the customers from being cheated and prohibiting illegal traders from entrapping the customers.
Description
Technical field
The present invention relates to a kind of determining instrument and assay method that is used for evaluating and testing material component content, belong to detection field.
Background technology
Current, the fake and forged phenomenon of the commodity of China is more serious, and relevant quality testing department is necessary commercial quality is rigid in checking up, and the consumer also is necessary commercial quality is carried out self check, to safeguard the consumption rights and interests of oneself.But, in the face of panoramic commodity, how its composition, content are accurately detected, thereby determine its quality, be the problem that quality testing department, consumer are concerned about most.
At present, the method for up-to-date detection material composition, content is the detection method that a kind of employing frequency electromagnetic waves (RF) technology and electromagnetic field simulation technology realize.For example, the integrated novel microwave Dielectric Coefficient instrument LM-29 of Japan AET company exploitation has namely adopted this detection method, it can measure by an opening coaxial resonator quick nondestructive ground material of various shapes, built-in feedback circuit can make measurement more accurate, and the operation of oscillator is simpler.This analyzer is by being guaranteed the precision without destructive measurement in conjunction with high-q cavity, highly accurate Measurement Algorithm and 3 D electromagnetic simulation software.This analyzer LM-29 has adopted based on resonant cavity perturbation method, accuracy of detection is improved greatly, but, this analyzer LM-29 of Japan AET company is desk-top instrument, is not suitable for portable operation, and it is not suitable for the measurement of the larger dielectric material of broadband measurement and loss, in addition, this analyzer LM-29 price is too expensive, and the price of an instrument is more than 50 ten thousand yuan of Renminbi approximately, can't popularize between vast ordinary consumer and basic unit's quality inspection personnel.
In addition, the up-to-date third generation hand-held serial analysis instrument of having released of U.S.'s Innov-X (Innov-X systems) company, for example model is the analyser of Innov-X Alpha4000, it is that instrumentation detects in the United Nations's nuclear weapon inspection and American-European multinational customs, be characterized in being adapted at outdoor express-analysis, can within 5 seconds, carry out simultaneously the objectionable impurities analysis, various elemental recognitions, grade of ore content detection, soil element is analyzed, alloy, halogen element is analyzed, have fast, efficiently, the characteristics such as accurately, its analytic sample can be solid, liquid, powder, pastel, grease, film etc., the scope of testing result is from parts per million (ppm) to a hundred per cent, data after the analysis can be controlled by computer wireless, at once storage is downloaded, and generates simultaneously the EXCEL file.The weight of this analyser own is 1.3 kilograms, adopts chargeable battery (lithium battery) power supply, and its wireless blue tooth technology and GPS technology realize instrument use in the open air jointly, are hommization, integrated modern technologies equipment.But this analyser is the quantitative test pattern, and accuracy of detection is very high, therefore, it is expensive, and the price of an instrument can't be accepted by ordinary consumer and basic unit's quality inspection personnel up to 280,000 yuans, and for portable, its weight is also heavier, can't carry.
Summary of the invention
The object of the present invention is to provide a kind of material component content evaluation and test instrument and method, but this material component content is evaluated and tested instrument sxemiquantitative, certainly amount detects composition and the component content of measured matter, help consumer and basic unit's quality inspection personnel identification commodity true and false.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of material component content evaluation and test instrument, it is characterized in that: it comprises housing, this housing is provided with measured object and fixes pick-up unit, this measured object fixing pick-up unit comprises two fixing terminations for the clamping measured matter, these two fix the termination and arrange in opposite directions, these two of fixing in the termination fix the termination and are connected with gripping mechanism, this gripping mechanism fixes between the terminations for connected this fixing termination being moved and measured matter being clamped in these two, be provided with the material component content testing circuit in this housing, wherein: this material component content testing circuit comprises emitting antenna, receiving antenna, control panel, this emitting antenna, receiving antenna is separately positioned on these two and fixes in the termination, the terminals of this emitting antenna are via power amplifier module, the variable gain amplification module, selector switch, ultrabroad band microwave generation module is connected with the corresponding I/O end of microprocessor, the terminals of this receiving antenna are via the amplitude voltage transformation module, the variable gain amplification module, the AD modular converter is connected with the corresponding I/O end of this microprocessor, and the signal end that is arranged on this control panel on this housing is connected with the corresponding I/O end of this microprocessor; This ultrabroad band microwave generation module comprises low-frequency range frequency synthesizer and high-band frequency compositor, the control input end of this low-frequency range frequency synthesizer is connected with the corresponding I/O end of this microprocessor, the output terminal of this low-frequency range frequency synthesizer divides two-way, one the tunnel is connected with an input end of this selector switch, another road is connected with the input end of this high-band frequency compositor, the control input end of this high-band frequency compositor is connected with the corresponding I/O end of this microprocessor, and the output terminal of this high-band frequency compositor is connected with another input end of this selector switch.
Described emitting antenna, receiving antenna are paster antenna, the terminals of a plurality of described emitting antennas are connected with the output terminal of described power amplifier module via the emitting antenna selecting module, and the terminals of a plurality of described receiving antennas are connected via the input end of Receiving antenna selection module with described amplitude voltage transformation module.
Described gripping mechanism is for establishing graduated milscale structure.Be provided with the grating range-measuring circuit in the described housing, this grating range-measuring circuit comprises key light grid, secondary grating and range observation circuit, and wherein: these key light grid are connected with described gripping mechanism, and the signal end of this range observation circuit is connected with the corresponding I/O end of described microprocessor.
Described material component content testing circuit is provided with temperature sensing circuit, and the signal end of this temperature sensing circuit is connected with the corresponding I/O end of described microprocessor.
Described microprocessor is intelligent controller.
A kind of material component content evaluating method of implementing based on described material component content evaluation and test instrument is characterized in that it comprises the steps:
Step 1: measured matter is positioned over two fixes between the termination, and by gripping mechanism measured matter is clamped, measure distance apart between two fixing terminations this moment, according to the sectional area of block end cephalic par, calculate measured matter and be in two volumes that fix between the termination;
Step 2: if the tested definite ingredients in the measured matter then enters step 3; If tested composition is indefinite, then enter step 5;
Step 3: transmission antennas transmit has the microwave of the characteristic frequency frequency range corresponding with this tested composition specific inductive capacity;
Step 4: microwave is received by receiving antenna after passing the measured matter decay, according to the volume that records in the amplitude of each frequency signal that receives, the step 1, and the tested composition of this that store in the database carries out analogy to specific inductive capacity and the relation data between frequency that should volume markers location survey gets, whether thereby determining this measured matter is the content of sterling and this tested composition, detects and finishes;
Step 5: transmission antennas transmit has the microwave of setting wide-band and carries out frequency sweep;
Step 6: microwave is received by receiving antenna after passing the measured matter decay, according to the volume that records in the amplitude of each frequency signal that receives, the step 1, and each material of storing in the database carries out analogy to specific inductive capacity and the relation data between frequency that should volume markers location survey gets, thereby determine the composition of this measured matter and the content of each composition, detect and finish.
In described step 1, measurement of species component content evaluation and test instrument environment temperature of living in, then: in described step 4, according to the volume and the environment temperature that record in the amplitude of each frequency signal that receives, the step 1, and this tested composition of storing in the database to should volume, environment temperature markers the location survey specific inductive capacity and the relation data between frequency that get carry out analogy; In described step 6, according to the volume and the environment temperature that record in the amplitude of each frequency signal that receives, the step 1, and each material of storing in the database to should volume, environment temperature markers the location survey specific inductive capacity and the relation data between frequency that get carry out analogy.
Analogy in described step 4 and the step 6 is processed and is carried out in described microprocessor, perhaps, analogy in described step 4 and the step 6 is processed and is carried out in smart mobile phone, perhaps, the analogy that described step 4 is connected with step 6 is processed and is carried out in the back bench web supporting platform that is connected with intelligent mobile phone wireless communication, wherein:
If processing, the analogy in described step 4 and the step 6 in smart mobile phone, carries out, when not having the material information that detects consumer at this moment in the database in the smart mobile phone, this material information that the consumer can obtain detection sends to the back bench web supporting platform, to inquire about in the database on the back bench web supporting platform, if in the database on the back bench web supporting platform still without this material information, then the expert will do related experiment according to this material information that the consumer provides, the problem that runs into to help solve the consumer;
If processing, the analogy that described step 4 is connected with step 6 in the back bench web supporting platform that is connected with intelligent mobile phone wireless communication, carries out, when not having the material information that detects consumer at this moment in the database on the back bench web supporting platform, the expert will do related experiment according to this material information that the consumer provides, the problem that runs into to help solve the consumer.
Advantage of the present invention is:
Material component content evaluation and test instrument cost of the present invention is low; lightweight; portable strong; the present invention evaluates and tests instrument and evaluating method and can carry out to composition, the content of measured matter sxemiquantitative, certainly measure fast detecting; also can quantitatively detect; detect accurately; be specially adapted to identify commercial quality (composition and content thereof); for consumer and basic unit quality inspection personnel identification commodity true and false provide foundation; prevent that effectively the consumer from having dust thrown into the eyes; especially prevent that objectionable impurities from causing damage to consumer's health, protect the health of oneself, contain that effectively illegal retailer leads consumer's behavior into a trap.
Description of drawings
Fig. 1 is the schematic diagram of material component content evaluation and test instrument of the present invention;
Fig. 2 is the composition frame chart of material component content testing circuit;
Fig. 3 is the composition frame chart of a preferred embodiment of material component content testing circuit;
Fig. 4 is frequency and the specific inductive capacity relation curve exemplary plot that the substance A of storing in the database is drawn out under volume B condition.
Embodiment
As depicted in figs. 1 and 2, material component content evaluation and test instrument of the present invention comprises housing 60, this housing 60 among Fig. 1 is U-shaped, this housing 60 is provided with measured object and fixes pick-up unit, this measured object fixing pick-up unit comprises two fixing terminations 61 for clamping measured matter 50,62, these two fix termination 61,62 arrange in opposite directions, when the initialization of evaluation and test instrument, fix termination 61,62 at a distance of certain initial distance, these two of fixing in the termination fix the termination and are connected with gripping mechanism 63, and another fixing termination can be installed on the housing 60, this gripping mechanism 63 is used for making connected this fixing termination to move and measured matter 50 is clamped in these two fixing terminations 61, between 62, be provided with the material component content testing circuit in this housing 60, wherein:
Such as Fig. 2, this material component content testing circuit comprises emitting antenna 10, receiving antenna 20, control panel 34, this emitting antenna 10, receiving antenna 20 is separately positioned on these two and fixes termination 61, in 62, the terminals of this emitting antenna 10 are via power amplifier module 16, variable gain amplification module 15, selector switch 12, ultrabroad band microwave generation module 11 is connected with the corresponding I/O end of microprocessor 30, the terminals of this receiving antenna 20 are via amplitude voltage transformation module 22, variable gain amplification module 23, AD modular converter 24 is connected with the corresponding I/O end of this microprocessor 30, this selector switch 12, two these variable gain amplification modules 15,23 control end is connected with the corresponding I/O end of microprocessor 30 respectively, and the signal end that is arranged on this control panel 34 on this housing 60 is connected with the corresponding I/O end of this microprocessor 30.
In actual design, the volume of common antenna is large and can't reach frequency range required for the present invention, therefore, in the present invention, emitting antenna 10, the receiving antenna 20 preferred paster antennas that adopt, paster antenna both volume are little and price is low, can select LTCC ceramic paster antenna such as paster antenna.Such as Fig. 2, the terminals of a plurality of emitting antennas 10 are connected via the output terminal of emitting antenna selecting module 17 with power amplifier module 16, and the terminals of a plurality of receiving antennas 20 are connected via the input end of Receiving antenna selection module 21 with amplitude voltage transformation module 22.In actual use, microwave frequency band according to emission, the paster antenna of choice for use fair amount and emission specification carries out the microwave Launch Operation via the control of emitting antenna selecting module 17, correspondingly, the usage quantity of receiving antenna 20 should be the same with the emission specification with emitting antenna 10 selected quantity with the emission specification, during work, emitting antenna selecting module 17 and Receiving antenna selection module 21 are opened the antenna channels of same frequency simultaneously.All emitting antennas 10, all receiving antennas 20 all are arranged in the housing of corresponding fixing termination equably, so that microwave guarantees detection accuracy evenly to the measured matter emission.
Because material component content evaluation and test instrument of the present invention is applicable to the present invention and evaluates and tests the interior various materials of instrument setting sensing range, and the frequency range at the specific inductive capacity characteristic of correspondence frequency place of these materials is different, what have is in low-frequency range, what have is in high band, therefore, the present invention evaluates and tests the microwave that instrument needs to launch ultrabroad band.According to this demand, the present invention is evaluated and tested instrument carried out following design: such as Fig. 3, ultrabroad band microwave generation module 11 comprises low-frequency range frequency synthesizer 111 and high-band frequency compositor 112, the control input end of this low-frequency range frequency synthesizer 111 is connected with the corresponding I/O end of microprocessor 30, the output terminal of this low-frequency range frequency synthesizer 111 divides two-way, one the tunnel is connected with an input end of selector switch 12, another road is connected with the input end of this high-band frequency compositor 112, the control input end of this high-band frequency compositor 112 is connected with the corresponding I/O end of microprocessor 30, and the output terminal of this high-band frequency compositor 112 is connected with another input end of selector switch 12.Like this, the frequency of low-frequency range frequency synthesizer 111 exportable 0.1Hz to 150MHz, stepping is 0.1Hz, and the frequency of low-frequency range frequency synthesizer 111 outputs continues the input as high-band frequency compositor 112, frequency by high-band frequency compositor 112 final output 0.01GHz to 6GHz, stepping is 1KHz, and selector switch 12 then is used for selecting low frequency output, high frequency output, or low-and high-frequency output.
The present invention evaluates and tests instrument can have dual mode aspect range observation, a kind of is manual range finding, and another kind is automatic range, can produce for this dual mode the evaluation and test instrument of two kinds of different range finding types, perhaps evaluates and tests instrument and has simultaneously this two kinds of distance measurement functions.
Such as Fig. 1, the present invention evaluates and tests the gripping mechanism 63 of instrument can select the milscale structure that is provided with scale 64, the user is clamped in two by the anti-skidding knob of annular knurl of rotation milscale structure with measured matter and fixes between the termination 61,62, thereby two fix termination 61,62 distance just can read out from the structural scale of milscale, then manually input by control panel 34, be used for subsequent treatment and use, this is manual range finding.
In actual design, can be provided with non-locking power switch button, reset button, testing button, communications buttons, digital load button etc. on the control panel 34.
Such as Fig. 2, automatic range is that the present invention evaluates and tests the grating range-measuring circuit 13(known circuits that arranges in the instrument) finish.Be provided with grating range-measuring circuit 13 in the housing 60, this grating range-measuring circuit 13 comprises key light grid (i.e. mobile scale grating), secondary grating (being static indication grating) and range observation circuit, wherein: these key light grid are connected with gripping mechanism 63, these key light grid move with the movement of gripping mechanism 63, to be used for range finding, the signal end of this range observation circuit is connected with the corresponding I/O end of microprocessor 30.When make two to fix terminations 61,62 and clamp measured matter by gripping mechanism 63 after, even if this grating range-measuring circuit 13 with two fix terminations 61,62 range observation goes out, and it is interior stand-by to send into microprocessor 30.Such as Fig. 1, the present invention evaluates and tests the display panel 67 that can be provided with on the housing 60 of instrument for range of a signal numerical value.
Such as Fig. 2, the present invention evaluates and tests instrument also can arrange feedback log detection module 18, the feedback end of variable gain amplification module 15 is connected with the corresponding I/O end of microprocessor 30 via feedback log detection module 18, the control end of this feedback log detection module 18 connects directional coupler 19, the effect of this feedback log detection module 18 is so that each frequency of sending from emitting antenna 10 has identical amplitude, the complexity of processing to simplify the follow-up analogy of carrying out, if this feedback log detection module 18 is not set, amplitude between each frequency of then sending is different, certainly, this does not affect testing result and accuracy, has just slightly increased the complexity that analogy is processed.
Can find in actual applications, specific inductive capacity is the function of temperature, the variation of dielectric constant with temperature and changing, thereby, when evaluation and test material composition and content, temperature factor is taken into account, can make testing result more accurate, therefore, such as Fig. 2, the present invention evaluates and tests instrument and also is provided with temperature sensing circuit 14, and the signal end of this temperature sensing circuit 14 is connected with the corresponding I/O end of microprocessor 30.
In practice, improve in order to make the present invention evaluate and test the instrument detection speed, microprocessor 30 can adopt intelligent controller 301(ARM7LPC2214), and, for further reducing cost, the analogy processing procedure is not finished in intelligent controller 301, but at housing 60 numeral isolation USB mouth 66 is set, connecing the corresponding I/O end of holding with on the microprocessor 30 in the numeral isolation USB mouth 66 is connected, like this, smart mobile phone 32 just can be plugged on the numeral isolation USB mouth 66 and evaluates and tests instrument with the present invention and be connected by data line, and then the analogy processing procedure can be in smart mobile phone 32 operations, evaluate and test the cost of instrument significantly to reduce the present invention, can show on the smart mobile phone 32 that tested composition is about frequency and specific inductive capacity relation curve, data and testing result etc.Certainly, smart mobile phone 32 and the present invention evaluate and test between the instrument also can carry out wireless telecommunications, finishes the transmission that data are used in analogy.In addition, when smart mobile phone 32 can't be finished the analogy processing procedure, smart mobile phone 32 also can pass through the wireless network accessing Internet, carry out message exchange with back bench web supporting platform 40, finish the analogy processing procedure by back bench web supporting platform 40, make the user obtain remote support, to consist of typical Internet of Things operational mode.In practice, this back bench web supporting platform 40 can be finished: 1. authenticate, register; 2. receive consumer's consulting, note, multimedia message, help solve problem; 3. building database, testing laboratory; 4. set up the consumer exchanging area; 5. expand related service etc. with development.
In actual applications, the present invention evaluates and tests instrument and also can use USB Key softdog to solve the authenticating user identification problem, improves safety and reliability.
Such as Fig. 1, fix termination 61,62 can be designed to discoid, respectively the transmitting antenna array of built-in launched microwave, receive the receiving antenna array of microwave, two fix termination 61,62 structure, shape are the same, the sectional area of their ends equates.
Such as Fig. 3, emitting antenna selecting module 17 can be selected transmitting RF multi-way switch array 171, and it is made of high delimitation order double-pole double throw switch HMC194, single-pole triple-throw (SPTT) switch S KY13317, hilted broadsword six throw switch SP6TP518AL6.Receiving antenna selection module 21 can be selected and receive RF multi-way switch array 211, and it is made of high delimitation order double-pole double throw switch HMC194, single-pole triple-throw (SPTT) switch S KY13317, hilted broadsword six throw switch SP6TP518AL6 equally.Power amplifier module 16 is selected power amplifier 161ADL5541.Variable gain amplification module 15,23 is selected respectively variable gain amplifier 151,231(TQP369182).Selector switch 12 selects the single-pole double-throw switch (SPDT) 121(U.S. to think the SP6T switch of good news company).AD modular converter 24 is selected 12 ADC converter 241AD7887.Temperature sensing circuit 14 comprises temperature sensor 141, and temperature sensor 141 is selected the DS18B20 chip.Grating range-measuring circuit 13 is comprised of the meticulous minute absolute value circuit that operational amplifier consists of, and belongs to known electronic technology.Feedback log detection module 18 is selected feedback log wave detector 181AD8318.Amplitude voltage transformation module 22 is selected detection logarithmic detector 221AD8318 to transform and is formed.Low-frequency range frequency synthesizer 111 selected frequency compositor AD9951, high-band frequency compositor 112 is made of frequency synthesizer (PLL) ADF4350, active 2 frequency multiplier HMC561LP32,2 frequency multiplier HMC189.
Based on above-mentioned substance component content evaluation and test instrument, the invention allows for a kind of material component content evaluating method, it comprises the steps:
Step 1: measured matter 50 is positioned over two fixes between the termination 61,62, and by gripping mechanism 63 measured matter 50 is clamped, two fix termination 61,62 and contact gently measured matter 50, measured matter 50 is not dropped to be got final product, measure two by manual range finding or automatic range mode and fix termination 61,62 distances apart this moment, according to the sectional area of block end cephalic par, calculate measured matter 50 and be in two volumes that fix between the termination 61,62;
Step 2: if the tested definite ingredients in the measured matter 50, namely the user knows the matter of measuring and monitoring the growth of standing timber this moment, then enters step 3; If tested composition is indefinite, namely the user does not know should evaluate and test which kind of material this moment, then enters step 5;
Step 3: the microwave that emitting antenna 10 emissions have the characteristic frequency frequency range corresponding with this tested composition specific inductive capacity, namely the microwave of emission has comprised the frequency range at the corresponding characteristic frequency place of tested composition specific inductive capacity;
Step 4: microwave is received by receiving antenna 20 after passing measured matter 50 decay, according to the volume that records in the amplitude of each frequency signal that receives, the step 1, and the tested composition of this that store in the database carries out analogy to specific inductive capacity and the relation data between frequency that should volume markers location survey gets, thereby determine whether this measured matter 50 is the content of sterling and this tested composition, detect and finish;
Step 5: emitting antenna 10 emission has the microwave of setting wide-band (be that the present invention evaluates and tests the frequency range from the extremely high frequency of lowest frequency that can launch that instrument self is set, this setting wide-band can satisfy composition and content that the present invention is evaluated and tested all substances in the instrument setting sensing range and evaluate and test) and carries out frequency sweep;
Step 6: microwave is received by receiving antenna 20 after passing measured matter 50 decay, according to the volume that records in the amplitude of each frequency signal that receives, the step 1, and each material of storing in the database carries out analogy to specific inductive capacity and the relation data between frequency that should volume markers location survey gets, thereby determine the composition of this measured matter 50 and the content of each composition, detect and finish.
Because specific inductive capacity is the function of temperature, the variation of dielectric constant with temperature and changing, thereby, when evaluation and test material composition and content, temperature factor is taken into account, can make testing result more accurate, therefore, in above-mentioned steps one, increase and measure material component content evaluation and test instrument of the present invention environment temperature step of living in, and, correspondingly:
In step 4, according to the volume and the environment temperature that record in the amplitude of each frequency signal that receives, the step 1, and this tested composition of storing in the database to should volume, environment temperature markers the location survey specific inductive capacity and the relation data between frequency that get carry out analogy; And
In step 6, according to the volume and the environment temperature that record in the amplitude of each frequency signal that receives, the step 1, and each material of storing in the database to should volume, environment temperature markers the location survey specific inductive capacity and the relation data between frequency that get carry out analogy.
Certainly, in actual design, the ambient temperature measurement step also can be carried out in step 4 and step 6.
In practice, the database position of the relation data between storage specific inductive capacity and frequency is relevant with the actual design composition that the present invention evaluates and tests instrument, database can be created in the microprocessor 30, also can be created in the smart mobile phone 32, can also be created on the back bench web supporting platform 40, decide on user's request.
Similarly, it is relevant that the position that analogy in above-mentioned steps four and the step 6 is processed and the present invention evaluate and test the actual design composition, database location of instrument etc., analogy is processed and can be carried out in microprocessor 30, also can in smart mobile phone 32, carry out (the required process software of analogy is installed in the smart mobile phone), can also with back bench web supporting platform 40 that smart mobile phone 32 wireless telecommunications are connected in carry out, decide on user's request.
In the present invention, smart mobile phone refers to have the PDA(palm PC) function, wireless access the Internet capability, mobile phone with characteristics such as open operating system, self-learning functions.If the analogy processing procedure can be moved at smart mobile phone, the present invention evaluates and tests microprocessor in the instrument or intelligent controller because not carrying out the analogy computing so, thereby they just can select the process chip of high handling property, thereby greatly reduced the cost that the present invention evaluates and tests instrument, product price is not high, can be accepted by consumers in general and quality supervision department of basic unit.If analogy is processed and is moved in microprocessor or intelligent controller, then microprocessor or intelligent controller should be selected the process chip of high handling property, therefore, processing the present invention who moves at smart mobile phone with above-mentioned analogy evaluates and tests instrument and compares, its cost is higher, but, to compare with the microwave permittivity analyzer LM-29 of Japanese AET company and the hand-held serial analysis instrument of U.S. Innov-X company, its cost is still very low.
When reality is used, if the consumer is in testing process, the information that does not have certain material in the database of discovery smart mobile phone, or run into other knotty problem, it can adopt online consultation, such as exchange waies such as QQ or MSN, and also can be by transmitting-receiving note, multimedia message and wireless network mode, curve, the data of the not clear material of this kind are sent to back bench web supporting platform 40, in larger database, inquiring about.If curve and the data that can provide according to the consumer less than, the expert of back bench web supporting platform 40 still are provided, do more massive related experiment at professional instrument, help solve the problem that the consumer runs into, with construct networking operation pattern.
Detection principle used in the present invention is dielectric constant microwave detection method (this principle is known technology), various materials all have certain absorption to microwave, the specific inductive capacity that how much depends primarily on this material that absorbs (strictly, specific inductive capacity should be referred to as complex permittivity), the real part of this specific inductive capacity represents the ability of this storage of substances electric charge and imaginary part represents the loss of this material.And the frequency of the degree of functioning of each material absorbing microwave and microwave has corresponding relation, for each material, in a frequency range, they are all to there being a characteristic frequency, under this characteristic frequency, this material absorbing microwave energy is the most effective, this is main because material this moment generation orientation polarization and interfacial polarization in microwave field, occur under the characteristic frequency of these two kinds of polarization phenomena in its microwave, the position that this characteristic frequency occurs namely be this substance dielectric constant real part ε ' and imaginary part ε ' ' vector and absorption peak peak position.In this frequency range, the absorption peak of each material is unique, and the position of the absorption peak of different material and size are different, and the amplitude of its absorption peak increases along with the increase of molecular number in the material unit volume, therefore, need to measure the material of designated volume.The microwave of this frequency range passes material in season, different material there are differences the absorption of this microwave energy, position and the size of absorption peak appears in specific inductive capacity corresponding to microwave that passes material by measurement, and compare in the same terms (volume, environment temperature) lower measured frequency and specific inductive capacity data with the sample with same substance of demarcating, just can analyze composition and the content of this material.In the present invention, above-mentioned this frequency range is and evaluates and tests instrument according to the present invention and set the size of the various substance dielectric constant characteristic of correspondence frequencies in the sensing range and evaluate and test the frequency range of setting wide-band that has that instrument self formulates.In actual applications, when tested composition was indefinite, the present invention can launch the microwave with this setting wide-band, and when tested definite ingredients, can launch the corresponding concrete frequency range of this tested composition, thereby dwindle the bandwidth of transmit frequency band, simplify and process complexity, shorten detection time.In addition, no matter it should be noted that whether the amplitude of each frequency that the frequency range of emission is interior is the same, all absorption peak can occur in this frequency range, can not affect the accuracy of testing result, just launch the complexity that each frequency meeting facilitating chip is processed with identical amplitude.
As shown in Figure 4, there is shown frequency and the specific inductive capacity graph of relation of substance A under volume B condition.ε ', ε ' ' are respectively real part, the imaginary parts of the specific inductive capacity of substance A, and as can be seen from Figure 4, the real part ε ' of this substance A specific inductive capacity is with the vector of imaginary part ε ' ' and absorption peak can occur near frequency f 1, and frequency f 1 is the characteristic frequency of substance A.
When actual design, the present invention can will evaluate and test according to user's needs that instrument is designed to quantitatively, sxemiquantitative or certainly measure detecting pattern.
Quantitatively detecting pattern is with the concrete content detection of the composition of material and each composition out, and content value will be specific to the requisite number magnitude, and is extremely accurate.
The half-quantitative detection pattern be a kind of easy, quick, accuracy is not high, but testing result requires to have the pattern of some levels.Exist which composition except needs detect, also it may be noted that roughly content of every kind of composition, and value that need not be concrete, such as main, a large amount of, middle amount, a small amount of, trace and 6 orders of magnitude of trace.For example: can set 6 orders of magnitude as follows: 1. main: tested composition accounts for more than 80% of measurement volumes; 2. a large amount of: tested composition accounts between the 60%--80% of measurement volumes; 3. amount in: tested composition accounts between the 30%--60% of measurement volumes; 4. a small amount of: tested composition accounts between the 10%--30% of measurement volumes; 5. micro-: tested composition accounts between the 1%--10% of measurement volumes; 6. trace: tested composition accounts between the 0.1%--1% of measurement volumes.
Certainly measuring detecting pattern is a kind of pattern between quantitative detection and half-quantitative detection, and the order of magnitude of its content value is that the present invention evaluates and tests the self-defining order of magnitude of instrument.For example, the accuracy of detection of the analyser of U.S. Innov-X company is the ppm order of magnitude, i.e. 1,000,000/order of magnitude, so, the present invention evaluates and tests instrument can be set as the 100ppm order of magnitude, with the simplified operation complexity, shorten computing time, increase work efficiency, satisfy the fast detecting needs.
In the present invention, the computing method that relate in the analogy processing procedure and step etc. all belong to the technology of knowing of this area, here no longer describe in detail.It should be noted that in the present invention, but the relation curve of storing frequencies and specific inductive capacity in the database.Certainly, also can storing frequencies and the relation data tabulation of specific inductive capacity, can simplify calculating like this.When considering temperature, what store in the database is relation curve or the data list of frequency, environment temperature and specific inductive capacity.When adopting the data list form, temperature, these actual measured value of volume during without accurate corresponding numerical value, can adopt and close on value in database, also can adopt the mode computing of local linearization to obtain.For example, temperature is 30.1 degree, and data corresponding to 30 degree are arranged in the database, then it can be considered as 30 degree.Again for example, temperature is 32 degree, and only has 30 degree and the corresponding data of 35 degree in the database, then can adopt the linearization mode to process and obtain the corresponding data of 32 degree.
For example: followingly evaluate and test instrument with the present invention shown in Fig. 3 its course of work is described, this evaluation and test instrument adopts manually range finding, and its analogy processes and considered the impact of temperature on specific inductive capacity, is specially:
Certain consumer comes garments city and buys clothes, take a fancy to clothes that are nominally pure-cotton fabric by businessman, price is higher, the consumer is not the professional person, all can not determine whether cotton textiles with feel, range estimation and baked wheaten cake, so the consumer just can be plugged on the smart mobile phone of oneself on the numeral isolation USB mouth 31 that the present invention shown in Figure 3 evaluates and tests instrument, to carry out the detection of garment material.
At first, the present invention is evaluated and tested instrument and carry out zero correction.
Then, with the thickness of this garment folding into about 20mm, being placed on two fixes between the termination 61,62, by the knob of rotation gripping mechanism 63 this garment clip being held in two fixes between the termination 61,62, then read two by its high scale and fix terminations 61,62 distance, manually input by control panel 34.Intelligent controller 301 calculates two volumes that fix termination 61,62 spaces that form according to the distance of input and the sectional area of block end cephalic par, namely calculates the specific column volume of detection space.Meanwhile, the temperature of 141 pairs of clothes environment of living in of temperature sensor detects, and the ambient temperature data that detection obtains is also sent in the intelligent controller 301.
Because the tested definite ingredients of measured matter clothes is cotton face fabric, therefore, " cotton face fabric " selected at quality testing interface at smart mobile phone 32, thereby, after intelligent controller 301 receives the detected object signal that smart mobile phone 32 sends, control single-pole double-throw switch (SPDT) 121 corresponding gating low-frequency range frequency synthesizer 111 output low frequencies and/or high-band frequency compositor 112 output high frequencies, the voltage signal of the special frequency channel at the characteristic frequency place of the corresponding cotton face fabric specific inductive capacity of corresponding output, then carrying out voltage signal via variable gain amplifier 151 amplifies, after power amplifier 161 carries out power amplification, by transmitting RF multi-way switch array 171 gating respective transmit antenna 10, and the microwave of the characteristic frequency place frequency range with corresponding cotton face fabric specific inductive capacity is launched to the clothes that are held.In practice, emitting antenna is launched each frequency in the frequency range with certain stepping, and for example, for each frequency that is in 0.1GHz to 2GHz frequency range, 1KHz launches with stepping.
After microwave passes these clothes, the microwave of decay is received by receiving antenna 20, after receiving RF multi-way switch array 211, send into each frequency signal that detects in 221 pairs of these frequency ranges of logarithmic detector and carry out the amplitude voltage conversion, then after amplifying via variable gain amplifier 231, send into the analog to digital conversion that 12 ADC converters 241 carry out voltage signal, amplitude digital signal corresponding to each frequency about in this frequency range that obtains after the conversion the most at last sent into intelligent controller 301.
After intelligent controller 301 receives the every data of amplitude corresponding to the above-mentioned volume that records, temperature, frequency, these data upload to smart mobile phone 32, are carried out computing by smart mobile phone 32 by the respective handling software of installing in it.
In computing, the amplitude signal of the volume that process software obtains by detection, temperature, each frequency calculates absorption peak position and size, carry out analogy (concrete kind belongs to known technology than process) with the cotton face fabric of storing in the database in the mobile phone at equal volume, temperature conditions lower frequency and specific inductive capacity relation data, finally draw the content of tested composition cotton face fabric, and show testing result at the screen of smart mobile phone 32.For example adopt and certainly measure detecting pattern, testing result is: textile composition accounts for 82.3%, can judge that cotton accounts for the major part of measurement volumes in the tested fabric, but is not 100% cotton textiles.
If the consumer also thinks further to know to have mixed which kind of material in these clothes, then can pass through smart mobile phone 32, detection is set to frequency sweep duty (type is divided into: coarse scan and carefully sweep).After intelligent controller 301 receives the sense command that smart mobile phone 32 sends, control single-pole double-throw switch (SPDT) 121 corresponding gating low-frequency range frequency synthesizer 111 output low frequencies and/or high-band frequency compositor 112 output high frequencies, the setting wide-band voltage signal that corresponding output the present invention evaluates and tests the self-defining 0.02-6GHz of instrument (for example, stepping is 0.1Hz during low frequency, stepping is 1KHz during high frequency), then carrying out voltage signal via variable gain amplifier 151 amplifies, after power amplifier 161 carries out power amplification, by transmitting RF multi-way switch array 171 in good time gating respective transmit antenna 10, and the microwave with this setting wide-band is launched to the clothes of clamping.
After microwave passes clothes, the microwave of decay is received by receiving antenna 20, after receiving RF multi-way switch array 211, send into each frequency signal that detects in 221 pairs of these setting wide-bands of logarithmic detector and carry out the amplitude voltage conversion, then after amplifying via variable gain amplifier 231, send into the analog to digital conversion that 12 ADC converters 241 carry out voltage signal, amplitude digital signal corresponding to each frequency about in this setting wide-band that obtains after the conversion the most at last sent into intelligent controller 301.
After intelligent controller 301 receives the every data of amplitude corresponding to the above-mentioned volume that records, frequency, these data upload to smart mobile phone 32, are carried out computing by smart mobile phone 32 by the respective handling software of installing in it.
In computing, the volume that process software obtains by detection, the amplitude signal of each frequency and the temperature data that has detected when the evaluation and test cotton face fabric calculate position and the size of each absorption peak, carry out analogy (concrete kind belongs to known technology than process) with each material of storing in the database in the mobile phone at equal volume, ambient temperature conditions lower frequency and specific inductive capacity relation data, final judgement draws clothes except the cotton face fabric composition, contained other compositions and content thereof, and show testing result at the screen of smart mobile phone 32.For example adopt the half-quantitative detection pattern, testing result is: contain the terylene composition, and content for a small amount of (think tested terylene account for measurement volumes 10%-30% between), thereby confirm that these clothes are blending, the clothes retailer has swindle consumer's suspicion.
Above-mentioned whole testing process only needed for tens seconds, can reach the purpose that helps the consumer to distinguish fake and inferior commodities.
If the absorption peak position and the size data that calculate by smart mobile phone 32 can't find the respective substance sample in database, in the time of can't judging the composition of measured matter, the data communication device that the scene can be recorded is crossed smart mobile phone 32 and is exchanged with back bench web supporting platform 40, obtain further authentication and support, assist the consumer to judge the measured object qualitative attribution, with construct networking operation pattern.
The present invention evaluates and tests instrument and can solid, liquid, the gas of self setting in the sensing range be detected.If the consumer wants liquid is detected, then preliminary examination liquid can be packed in the containers such as bottle or polybag, when reality detects, the same with preliminary examination liquid, the present invention evaluates and tests specific inductive capacity and the frequency data that instrument can obtain container equally, container and preliminary examination fluid zone are separated, that is to say, the interpolation of container can not affect the present invention and evaluate and test instrument to the accurate detection of preliminary examination liquid.Detection gas is the same with the mode that above-mentioned tracer liquid is taked.
Advantage of the present invention is:
Material component content evaluation and test instrument cost of the present invention is low; lightweight; portable strong; can carry out to composition, the content of measured matter sxemiquantitative, certainly measure fast detecting; detect accurately; be specially adapted to commercial quality (composition and content thereof) is identified; for consumer and basic unit quality inspection personnel identification commodity true and false provide foundation; prevent that effectively the consumer from having dust thrown into the eyes; especially prevent that objectionable impurities from causing damage to consumer's health; protect the health of oneself, contain that effectively illegal retailer leads consumer's behavior into a trap.
Compared to the microwave permittivity analyzer LM-29 of Japanese AET company and the hand-held serial analysis instrument of U.S. Innov-X company, material component content evaluation and test instrument cost of the present invention is very low, just several thousand yuan of every instrument cost.And material component content evaluation and test instrument of the present invention is lightweight, and the user can carry, and is portable strong.
Material component content of the present invention evaluation and test instrument adopts free-space Method to detect, namely measured matter need not cut, cutting etc., fix between terminations and clamp as long as be positioned over two, can detect, be a kind of non-damage, nondestructive testing process.
Material component content of the present invention evaluation and test instrument based on each material specific inductive capacity separately to the principle of a different absorption peak should be arranged, by record from prior demarcation, be stored in corresponding different specific inductive capacity and the relation datas between frequency when detecting distance, environment temperature of each material in the database and carry out analogy, realize the detection to measured matter composition and content, be not subjected to the impact of the color, structure etc. of measured matter.Because material component content evaluation and test instrument of the present invention is a kind of analogy process, therefore, its detection speed is very fast, in addition, if adopt the half-quantitative detection pattern, then microprocessor need not to carry out complex calculations, certainly will significantly reduce the process chip cost of material component content evaluation and test instrument of the present invention.If the analogy process is not carried out in microprocessor, but by with the communication of smart mobile phone, the analogy process is moved in smart mobile phone, then will reduce by a larger margin the cost of material component content evaluation and test instrument of the present invention, improve its portability, strengthened its antijamming capability.
Because of the present invention evaluate and test the instrument cost low, light and handy, be easy to carry; it can become the good assistant of basic unit's quality inspection personnel; make things convenient for the quality inspection personnel shopping of fast patrolling on-the-spot; simultaneously; but consumer also the application of the invention evaluation and test instrument assists quality testing department to resist fake and inferior commodities; purify Chinese commodity market, Protection of consumer self rights and interests.
Above-mentioned is preferred embodiment of the present invention and the know-why used thereof; for a person skilled in the art; in the situation that do not deviate from the spirit and scope of the present invention; any based on apparent changes such as the equivalent transformation on the technical solution of the present invention basis, simple replacements, all belong within the protection domain of the present invention.
Claims (9)
1. a material component content is evaluated and tested instrument, it is characterized in that: it comprises housing, this housing is provided with measured object and fixes pick-up unit, this measured object fixing pick-up unit comprises two fixing terminations for the clamping measured matter, these two fix the termination and arrange in opposite directions, these two of fixing in the termination fix the termination and are connected with gripping mechanism, this gripping mechanism fixes between the terminations for connected this fixing termination being moved and measured matter being clamped in these two, be provided with the material component content testing circuit in this housing, wherein:
This material component content testing circuit comprises emitting antenna, receiving antenna, control panel, this emitting antenna, receiving antenna is separately positioned on these two and fixes in the termination, the terminals of this emitting antenna are via power amplifier module, the variable gain amplification module, selector switch, ultrabroad band microwave generation module is connected with the corresponding I/O end of microprocessor, the terminals of this receiving antenna are via the amplitude voltage transformation module, the variable gain amplification module, the AD modular converter is connected with the corresponding I/O end of this microprocessor, and the signal end that is arranged on this control panel on this housing is connected with the corresponding I/O end of this microprocessor;
This ultrabroad band microwave generation module comprises low-frequency range frequency synthesizer and high-band frequency compositor, the control input end of this low-frequency range frequency synthesizer is connected with the corresponding I/O end of this microprocessor, the output terminal of this low-frequency range frequency synthesizer divides two-way, one the tunnel is connected with an input end of this selector switch, another road is connected with the input end of this high-band frequency compositor, the control input end of this high-band frequency compositor is connected with the corresponding I/O end of this microprocessor, and the output terminal of this high-band frequency compositor is connected with another input end of this selector switch.
2. material component content as claimed in claim 1 is evaluated and tested instrument, it is characterized in that:
Described emitting antenna, receiving antenna are paster antenna, the terminals of a plurality of described emitting antennas are connected with the output terminal of described power amplifier module via the emitting antenna selecting module, and the terminals of a plurality of described receiving antennas are connected via the input end of Receiving antenna selection module with described amplitude voltage transformation module.
3. material component content as claimed in claim 1 is evaluated and tested instrument, it is characterized in that:
Described gripping mechanism is for establishing graduated milscale structure.
4. material component content as claimed in claim 1 is evaluated and tested instrument, it is characterized in that:
Be provided with the grating range-measuring circuit in the described housing, this grating range-measuring circuit comprises key light grid, secondary grating and range observation circuit, and wherein: these key light grid are connected with described gripping mechanism, and the signal end of this range observation circuit is connected with the corresponding I/O end of described microprocessor.
5. such as each described material component content evaluation and test instrument in the claim 1 to 4, it is characterized in that:
Described material component content testing circuit is provided with temperature sensing circuit, and the signal end of this temperature sensing circuit is connected with the corresponding I/O end of described microprocessor.
6. material component content as claimed in claim 5 is evaluated and tested instrument, it is characterized in that:
Described microprocessor is intelligent controller.
7. a material component content evaluating method of implementing based on each described material component content evaluation and test instrument in the claim 1 to 6 is characterized in that, it comprises the steps:
Step 1: measured matter is positioned over two fixes between the termination, and by gripping mechanism measured matter is clamped, measure distance apart between two fixing terminations this moment, according to the sectional area of block end cephalic par, calculate measured matter and be in two volumes that fix between the termination;
Step 2: if the tested definite ingredients in the measured matter then enters step 3; If tested composition is indefinite, then enter step 5;
Step 3: transmission antennas transmit has the microwave of the characteristic frequency frequency range corresponding with this tested composition specific inductive capacity;
Step 4: microwave is received by receiving antenna after passing the measured matter decay, according to the volume that records in the amplitude of each frequency signal that receives, the step 1, and the tested composition of this that store in the database carries out analogy to specific inductive capacity and the relation data between frequency that should volume markers location survey gets, whether thereby determining this measured matter is the content of sterling and this tested composition, detects and finishes;
Step 5: transmission antennas transmit has the microwave of setting wide-band and carries out frequency sweep;
Step 6: microwave is received by receiving antenna after passing the measured matter decay, according to the volume that records in the amplitude of each frequency signal that receives, the step 1, and each material of storing in the database carries out analogy to specific inductive capacity and the relation data between frequency that should volume markers location survey gets, thereby determine the composition of this measured matter and the content of each composition, detect and finish.
8. material component content evaluating method as claimed in claim 7 is characterized in that:
In described step 1, measurement of species component content evaluation and test instrument environment temperature of living in, then:
In described step 4, according to the volume and the environment temperature that record in the amplitude of each frequency signal that receives, the step 1, and this tested composition of storing in the database to should volume, environment temperature markers the location survey specific inductive capacity and the relation data between frequency that get carry out analogy;
In described step 6, according to the volume and the environment temperature that record in the amplitude of each frequency signal that receives, the step 1, and each material of storing in the database to should volume, environment temperature markers the location survey specific inductive capacity and the relation data between frequency that get carry out analogy.
9. material component content evaluating method as claimed in claim 7 is characterized in that:
Analogy in described step 4 and the step 6 is processed and is carried out in described microprocessor, perhaps, analogy in described step 4 and the step 6 is processed and is carried out in smart mobile phone, perhaps, the analogy that described step 4 is connected with step 6 is processed and is carried out in the back bench web supporting platform that is connected with intelligent mobile phone wireless communication, wherein:
If processing, the analogy in described step 4 and the step 6 in smart mobile phone, carries out, when not having the material information that detects consumer at this moment in the database in the smart mobile phone, this material information that the consumer can obtain detection sends to the back bench web supporting platform, to inquire about in the database on the back bench web supporting platform, if in the database on the back bench web supporting platform still without this material information, then the expert will do related experiment according to this material information that the consumer provides, the problem that runs into to help solve the consumer;
If processing, the analogy that described step 4 is connected with step 6 in the back bench web supporting platform that is connected with intelligent mobile phone wireless communication, carries out, when not having the material information that detects consumer at this moment in the database on the back bench web supporting platform, the expert will do related experiment according to this material information that the consumer provides, the problem that runs into to help solve the consumer.
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| CN105548695A (en) * | 2014-11-03 | 2016-05-04 | 江苏绿扬电子仪器集团有限公司 | Realization system for microwave frequency channel |
| CN110174416A (en) * | 2018-11-23 | 2019-08-27 | 曹笑涵 | A kind of liquid dielectric microwave detection system with self-calibration function |
| CN114264884B (en) * | 2020-09-16 | 2023-11-10 | Oppo广东移动通信有限公司 | Dielectric constant measuring method and device |
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