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Interdigital electrode

A technology of interdigitated electrodes and electrodes, applied in circuits, electrical components, piezoelectric/electrostrictive/magnetostrictive devices, etc., can solve the problems of inability to receive deformation signals continuously, control discontinuity, etc., and achieve low production costs , Environmental protection and energy saving use, the effect of improving precision

Inactive Publication Date: 2010-10-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no electrodes in these areas, so there will be discontinuity in control or the inability to continuously receive deformation signals

Method used

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  • Interdigital electrode
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Embodiment Construction

[0010] The interdigitated electrodes of the present invention will be further described below in conjunction with the accompanying drawings.

[0011] figure 1 It is a schematic diagram of an interdigitated electrode in the prior art. The interdigitated electrode is composed of a flexible substrate 1 and an electrode. The electrode material is prepared on the flexible substrate 1. The electrode includes a positive electrode and a negative electrode, and the positive electrode finger 2 and the negative electrode finger 3 are interlaced. arrangement. A region of the flexible substrate 1 is reserved around the electrodes of the interdigitated electrodes. In these areas there is no actual interaction between the interdigitated electrodes and the piezoelectric material since there is no electrode material. When it is necessary to arrange a certain number of interdigitated electrodes together to control the deformation of the piezoelectric material or to receive the deformation sig...

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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 [0001] The invention relates to an interdigitated electrode, in particular to an interdigitated electrode applied to a piezoelectric material. Background technique [0002] Piezoelectric material is a material that can convert mechanical energy and electrical energy into each other. If a certain stress is applied to the material, it will deform, which will cause the surface of the material to be charged; conversely, if an electric field is applied to the material, the material will also undergo mechanical deformation. Piezoelectric materials include piezoelectric ceramics, piezoelectric single crystals, piezoelectric polymer materials, and composite materials formed of piezoelectric materials and resins. Interdigitated electrodes are used in many piezoelectric materials, especially piezoelectric fiber composites. Interdigitated electrodes provide a way to make good use of the d33 properties of piezoelectric materials. Such as figure 1 As shown, the curren...

Claims

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Application Information

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IPC IPC(8): H01L41/047H03H9/13
Inventor 周科朝张斗张晓泳林秀娟危安
Owner CENT SOUTH UNIV