CN101867013B - Interdigital electrode - Google Patents
Interdigital electrode Download PDFInfo
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- CN101867013B CN101867013B CN2010101870884A CN201010187088A CN101867013B CN 101867013 B CN101867013 B CN 101867013B CN 2010101870884 A CN2010101870884 A CN 2010101870884A CN 201010187088 A CN201010187088 A CN 201010187088A CN 101867013 B CN101867013 B CN 101867013B
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- electrode
- board
- flexible base
- interdigited
- piezoelectric
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Abstract
The invention discloses an interdigital electrode which comprises a flexible substrate and an electrode material, wherein the electrode material is prepared in the flexible substrate and comprises positive poles and negative poles; the finger parts of the positive poles and the finger parts of the negative poles are arranged in a staggering way, and the electrode material is formed by longitudinally arranging at least two positive poles. The invention can realize the longitudinal and continuous control to piezoelectric materials or receive a deformation signal of the piezoelectric materials and greatly improve the application precision of the piezoelectric materials; in addition, the invention also has the beneficial effects of simple structure, low production cost, environmental protection, energy saving and convenient use.
Description
Technical field
The present invention relates to a kind of interdigited electrode, particularly be applied to the interdigited electrode on the piezoelectric.
Background technology
Piezoelectric is a kind of material that mechanical energy and electric energy can be changed mutually.Can make it produce distortion if material is applied certain stress, thereby cause that material surface is charged; Otherwise if material is applied electric field, material also will produce mechanical deformation.Piezoelectric comprises the composite material that piezoelectric ceramic, piezoelectric monocrystal, piezoelectric polymeric materials and piezoelectric and resin form etc.In many piezoelectrics especially piezoelectric fibre composite material, adopted interdigited electrode.Interdigited electrode provides approach for the d33 performance of well utilizing piezoelectric.As shown in Figure 1, present interdigited electrode is made up of flexible base, board and the staggered electrode in anodal finger and negative pole finger (being generally copper) of preparation on flexible base, board.In the time need controlling or receive the deformation signal of its zones of different, need interdigited electrode with some being arranged in together energising respectively and controls or receive respectively deformation signal the distortion of the main body zones of different of piezoelectric.Flexible base, board rises electrode material and supports and insulating effect, therefore all can reserve the zone of flexible base, board at the periphery of the electrode of interdigited electrode.In these regional electrodeless existence, therefore can cause the discontinuous of control or can not receive deformation signal continuously.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can vertically realize the piezoelectric continuous control or receive the interdigited electrode of its deformation signal.
For achieving the above object, the present invention includes flexible base, board and electrode, electrode material prepares on flexible base, board, and electrode comprises positive pole and negative pole, and anodal finger and negative pole finger be staggered, and described electrode is longitudinally formed by at least two positive poles.
As improvement of the present invention, the parallel to each other and terminals of the root of the positive pole of described electrode material are located at the longitudinal end of flexible base, board.
Described flexible base, board is polyimide film material or polyester film material.
Because interdigited electrode of the present invention is vertically to have arranged at least two positive poles on a flexible base, board, is equivalent to so at least two interdigited electrodes are vertically arranged, yet does not but have adjacent two interelectrode flexible base, board zones.Thereby can realize vertical continuous control of piezoelectric or receive its deformation signal, improve the precision of applying piezoelectric material greatly.In addition, the present invention also has simple in structure, and cost of manufacture is cheap, environmental protection and energy saving and beneficial effect easy to use.
Description of drawings
Fig. 1 is the schematic diagram of the interdigited electrode of prior art;
Fig. 2 is the schematic diagram of a kind of embodiment of interdigited electrode of the present invention.
Embodiment
Below in conjunction with accompanying drawing interdigited electrode of the present invention is described further.
Fig. 1 is the schematic diagram of the interdigited electrode of prior art, and interdigited electrode is made of flexible base, board 1 and electrode, and electrode material prepares on flexible base, board 1, and electrode comprises positive pole and negative pole, and anodal finger 2 and negative pole finger 3 are staggered.All can reserve the zone of flexible base, board 1 at the periphery of the electrode of interdigited electrode.Regional at these owing to electrodeless material, so do not produce actual effect between interdigited electrode and the piezoelectric.When need were arranged in the interdigited electrode of some together the distortion of energising control piezoelectric respectively or receive the deformation signal of piezoelectric respectively, the flexible base, board 1 between adjacent two interdigited electrodes can cause the discontinuous of control or can not receive deformation signal.
As shown in Figure 2, interdigited electrode of the present invention comprises flexible base, board 11 and electrode, and electrode preparation is on flexible base, board 11, electrode comprises positive pole and negative pole, and anodal finger 12 and negative pole finger 13 are staggered, and electrode is longitudinally formed by four positive poles, and each positive pole is controlled respectively.Because interdigited electrode of the present invention is vertically to have arranged four positive poles on a flexible base, board, is equivalent to like this interdigited electrode of four prior aries is vertically arranged, yet does not but have adjacent two interelectrode flexible base, board zones.Thereby can realize vertical four regional continuous controls of piezoelectric or receive its deformation signal, improve the precision of applying piezoelectric material greatly.The root 14 of the positive pole of described electrode material is parallel to each other and terminals 15 are located at the longitudinal end of flexible base, board, can make interdigited electrode easy-to-connect of the present invention, is easy to every pair of both positive and negative polarity is controlled respectively or received the deformation signal of piezoelectric.In addition, also have simple in structurely, cost of manufacture is cheap, environmental protection and energy saving and beneficial effect easy to use.Flexible base, board of the present invention can adopt polyimide film material or polyester film material, and electrode material adopts copper.
The invention is not restricted to the interdigited electrode that four positive poles of vertically arranging are arranged shown in the accompanying drawing 2, so long as on same flexible base, board, vertically arrange two or more anodal interdigited electrodes, all within protection range of the present invention.
Claims (3)
1. an interdigited electrode comprises flexible base, board and electrode, and electrode preparation is on flexible base, board, and electrode comprises positive pole and negative pole, and anodal finger and negative pole finger be staggered, and it is characterized in that described electrode is longitudinally formed by at least two positive poles.
2. according to the interdigited electrode of claim 1, it is characterized in that the parallel to each other and terminals of the root of the positive pole of described electrode are located at the longitudinal end of flexible base, board.
3. according to the interdigited electrode of claim 1 or 2, it is characterized in that described flexible base, board is polyimide film material or polyester film material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101870884A CN101867013B (en) | 2010-05-31 | 2010-05-31 | Interdigital electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101870884A CN101867013B (en) | 2010-05-31 | 2010-05-31 | Interdigital electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101867013A CN101867013A (en) | 2010-10-20 |
| CN101867013B true CN101867013B (en) | 2011-11-23 |
Family
ID=42958646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101870884A Expired - Fee Related CN101867013B (en) | 2010-05-31 | 2010-05-31 | Interdigital electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101867013B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101915064B1 (en) | 2012-08-23 | 2018-11-05 | 삼성전자주식회사 | Flexible device and operating methods thereof |
| CN102820423B (en) * | 2012-08-27 | 2014-07-09 | 杭州电子科技大学 | Combined piezoelectric micro-power generator |
| CN103208587B (en) * | 2013-04-10 | 2015-07-15 | 中南大学 | Method for preparing piezoelectric fiber composite |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000051190A1 (en) * | 1999-02-26 | 2000-08-31 | Active Control Experts, Inc. | Packaged strain actuator |
| JP2002100957A (en) * | 2000-09-20 | 2002-04-05 | Tdk Corp | Surface acoustic wave device and piezoelectric substrate used for the same |
| CN101868917B (en) * | 2007-12-14 | 2014-02-19 | 株式会社村田制作所 | Surface wave device and method of manufacturing the same |
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2010
- 2010-05-31 CN CN2010101870884A patent/CN101867013B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101867013A (en) | 2010-10-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20130531 |