Piezoelectric cable with piezoelectric effect, preparation method and use thereof

A piezoelectric cable, piezoelectric effect technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, circuits, etc. Short, high cost problems, to achieve the effect of good voltage response sensitivity, low impedance per unit length

Active Publication Date: 2017-03-08
NEWNAGY TANGSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the high cost of using the polarized polymer polyvinylidene fluoride (PVDF) as the piezoelectric material in the existing piezoelectric cable, the complicated polarization process, and the charge stored in PVDF after polarization will decrease with time. The growth and attenuation of the defect, its relatively short life, provides a piezoelectric cable with piezoelectric effect, using zinc oxide nanowire layer as the piezoelectric material layer, high mechanical strength, good linear output, good voltage response sensitivity, unit low resistance length

Method used

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  • Piezoelectric cable with piezoelectric effect, preparation method and use thereof
  • Piezoelectric cable with piezoelectric effect, preparation method and use thereof
  • Piezoelectric cable with piezoelectric effect, preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1 is applicable to the preparation of the cable that is used as traffic shaft sensor

[0075] Industrial aluminum with a purity of 99.5% and a diameter of 1.5 mm is selected as the first electrode core 1 . The first electrode core 1 was polished with 8000-mesh sandpaper until the surface roughness Rz was 12 microns, and then conventional ultrasonic cleaning was performed for 15 minutes. Chromium was radio-frequency sputtered on the surface of the first electrode core 1 by a conventional method to form a chromium layer with a thickness of 10 nm, and then zinc oxide was deposited on the chromium layer by a conventional method to form a zinc oxide seed layer with a thickness of 50 nm.

[0076] Prepare 0.1mol / L concentration of equimolar hexamethylenetetramine (HMTA) and zinc nitrate hexahydrate (ZnNO 3 6(H 2 (0))), the culture solution was placed under the vertically placed first electrode core 1, and grown in a mechanical convection heating furnace (model: Ya...

Embodiment 2-3

[0078] Embodiment 2-3 is applicable to the preparation of the cable that is used as traffic axis sensor

[0079]The preparation methods used in Examples 2-3 are basically the same as those in Example 1, except for Table 1.

[0080] Table 1

[0081]

Embodiment 4-6

[0082] Embodiment 4-6 is applicable to the preparation of the cable that is used as piezoelectric cable switch

[0083] The preparation methods used in Examples 4-6 are basically the same as those in Example 1, except for Table 2.

[0084] Table 2

[0085]

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Abstract

The invention provides a piezoelectric cable with piezoelectric effect, its preparation method and application. The piezoelectric cable includes a first electrode core, a zinc oxide nanowire layer, a polymer insulating layer, a second electrode layer and a shielding layer arranged coaxially in sequence. The invention adopts the zinc oxide nanowire layer as the piezoelectric material layer, and the obtained piezoelectric cable has high mechanical strength, good linear output, good voltage response sensitivity and low impedance per unit length.

Description

technical field [0001] The invention relates to a piezoelectric cable with piezoelectric effect, in particular to a piezoelectric cable with piezoelectric effect adopting a self-shielding coaxial structure, a preparation method and application thereof. Background technique [0002] Piezoelectric sensors are sensors made of the piezoelectric effect produced by piezoelectric materials. They have been widely used in many fields such as acoustics, medical treatment, industry, transportation, security and so on. development trend. When a piezoelectric material is deformed (including bending and stretching deformation) by an external force in a certain direction, charges will be generated on its surface due to the polarization of internal charges. Piezoelectric materials can be divided into piezoelectric single crystal, piezoelectric polycrystalline and organic piezoelectric materials. Polarized polyvinylidene fluoride (PVDF), polyvinylidene fluoride and polytrifluoroethylene cop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/087H01L41/27
Inventor 刘军锋J·亦岭森王卓陈锋
Owner NEWNAGY TANGSHAN
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