Diversified polarization experiment system for piezoelectric ceramics and piezoelectric semiconductor specimens

Abstract

Diversified polarization experiment system for piezoelectric ceramics and piezoelectric semiconductor specimens, including a mounting frame and a polarization box. The mounting frame is equipped with a multi-channel high-voltage power supply and a motor reducer. The top of the polarization box is provided with an opening. The motor reducer The main shaft drive is connected with the lifting mechanism located in the polarization box. The polarization box is equipped with a multi-station clamping device arranged on the lifting mechanism. The multi-station clamping device is located below the opening. There is a box cover for sealing the opening, and replaceable polarization indenters with different structures are installed in the multi-station clamping device; a thermocouple is inserted in the polarization box. The present invention can realize the simultaneous polarization of multiple piezoelectric ceramics and piezoelectric semiconductor specimens, and can apply different voltages to the piezoelectric ceramics and piezoelectric semiconductor specimens respectively to ensure better polarization consistency and greatly reduce the The experimental error caused by the change of environmental conditions fully improves the efficiency, safety and consistency of the laboratory preparation of piezoelectric ceramics and piezoelectric semiconductor specimens.

Description

technical field [0001] The invention belongs to the technical field of polarization of piezoelectric ceramic materials, and in particular relates to a diverse polarization experiment system of piezoelectric ceramics and piezoelectric semiconductor test pieces. Background technique [0002] Piezoelectric ceramics is a functional ceramic material that can convert mechanical energy and electrical energy. It is widely used in high-tech fields such as mobile communications, satellite broadcasting, electronic equipment, instrumentation, biology, and aerospace. It has become an indispensable modernization key material. With the rapid development of science and technology, many electronic and electrical equipment have higher and higher requirements for the selected piezoelectric devices, requiring piezoelectric materials to have greater adaptability in the scope of use and the use of the environment. For this reason, the Curie New piezoelectric materials with higher temperature, la...

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Problems solved by technology

[0008] The existing piezoelectric material polarization device has the following technical problems in the working process: 1. It cannot polarize the new piezoelectric semiconductor material specimen; 2. Only one specimen can be clamped at a time, and the polarization efficiency Low; 3. The chuck and clip of the polarization device cannot be replaced, which has great restrictions on the shape and size of the piezoelectric ceramic test piece, and also produces certain experimental errors; 4. Put it in a closed container (polarization box) The temperature of silicone oil varies greatly, the heat preservation effect is poor, and the temperature is not easy to control, resulting in poor polarization effect; Manual operation has great potential safety hazards

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