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Polarization system and method of large-length-diameter-ratio piezoelectric ceramic transistor

A technology of piezoelectric ceramic tube and large aspect ratio, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, circuits, etc., can solve the problem that there is no way to achieve large Aspect ratio piezoelectric ceramic tubes are effectively polarized, there is no way to achieve large aspect ratio piezoelectric ceramic tube contact, and effective polarization cannot be performed, so as to avoid subsequent cleaning processes, reduce polarization costs, and ensure the success rate of polarization.

Active Publication Date: 2015-07-08
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For large aspect ratio piezoelectric ceramic tubes, due to the small inner diameter of the material and the surface to be polarized is a curved plane, the traditional polarization clamping device has no way to realize the connection between the inner and outer walls of the large aspect ratio piezoelectric ceramic tube and the positive and negative electrodes. contact, no effective polarization
[0005] Therefore, neither the traditional polarization method nor the polarization device can realize the effective polarization of the large aspect ratio piezoelectric ceramic tube.

Method used

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  • Polarization system and method of large-length-diameter-ratio piezoelectric ceramic transistor
  • Polarization system and method of large-length-diameter-ratio piezoelectric ceramic transistor
  • Polarization system and method of large-length-diameter-ratio piezoelectric ceramic transistor

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A polarization system of a piezoelectric ceramic tube with a large aspect ratio, such as figure 1 , 2 As shown, it includes a withstand voltage tester 1, a sealed vacuum container 3, a polarization fixture 4 for clamping a piezoelectric ceramic tube, and a heating device 5 for heating the sealed vacuum container. The polarization fixture 4 inside the vacuum container 3 is connected, and the sealed vacuum container 3 is placed on a heating device 5 .

[0041] The polarization fixture 4 includes a positive electrode head 4-9, a negative electrode head 4-1, a positive electrode lead 4-2, a negative electrode lead 4-3 and a negative electrode plate 4-4, and the positive electrode head input terminal 4-9a is connected to the voltage output of the withstand voltage tester Terminal 1-1, the output terminal 4-9b of the positive pole head is connected to the positive pole wire 4-2; the input terminal 4-1a of the negative pole head is connected to the ground terminal 1-2 of the...

Embodiment 2

[0050] The polarization system of the large aspect ratio piezoelectric ceramic tube as described in Embodiment 1, the difference is that,

[0051] There are three positive electrode heads 4-9, and three positive electrode wires 4-2;

[0052] The material of the support plate 4-5 and the small cover plate 4-6 is stainless steel.

Embodiment 3

[0054] The polarization system of the large aspect ratio piezoelectric ceramic tube as described in Embodiment 1, the difference is that,

[0055] The support plate 4-5 is provided with five parallel grooves 4-7 penetrating the upper surface of the support plate; the number of positive electrode heads 4-9 is five, and the number of positive electrode leads 4-2 is five.

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Abstract

The invention discloses a polarization system of a large-length-diameter-ratio piezoelectric ceramic transistor. The polarization system comprises a withstanding voltage tester, a sealed vacuum container, a polarization clamp for clamping the piezoelectric ceramic transistor and a heating device for heating the sealed vacuum container. The withstanding voltage tester is connected with the polarization clamp arranged in the sealed vacuum container, and the sealed vacuum container is arranged on the heating device. According to the system, the problems that a traditional polarization clamp cannot polarize materials with small curved planes as polarization planes are solved, the inner wall and the outer wall of the large-length-diameter-ratio piezoelectric ceramic transistor is in contact with a positive electrode and a negative electrode, the polarization success rate of the large-length-diameter-ratio piezoelectric ceramic transistor is ensured, and the system is suitable for polarizing large-length-diameter-ratio piezoelectric ceramic transistors of different wall thicknesses. In addition, a vacuum polarization method is adopted, polarization is carried in the vacuum environment, in the polarization process, silicone oil is not used, the polarization cost is reduced, the polarization process is simplified, and the subsequent cleaning process of the oil bath polarization method is avoided.

Description

technical field [0001] The invention relates to piezoelectric ceramic polarization, in particular to a polarization system and a polarization method of a piezoelectric ceramic tube with a large aspect ratio. Background technique [0002] Large aspect ratio piezoelectric ceramic tube is a new type of functional material, which is an important functional phase of active vibration control composite materials and piezoelectric energy storage composite materials. Compared with traditional bulk and sheet piezoelectric ceramic materials, large aspect ratio piezoelectric ceramic tubes not only have excellent piezoelectric and dielectric properties, but also have the following advantages: (1) have good deflection and flexibility, geometric The shape meets the integration requirements, which is convenient for compounding with the matrix material, and has little influence on the structural strength and reliability of the matrix material; (2) When preparing the composite material, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/257H01L41/35H10N30/045H10N30/09
Inventor 黄世峰渠娇林秀娟徐东宇蔡亚梅程新
Owner UNIV OF JINAN