Piezoelectric ceramic and piezoelectric semiconductor test piece diversity polarization experiment system

Abstract

The invention provides a piezoelectric ceramic and piezoelectric semiconductor test piece diversity polarization experiment system. The piezoelectric ceramic and piezoelectric semiconductor test piece diversity polarization experiment system comprises a mounting rack and a polarization tank, wherein a multi-channel high voltage power supply and a motor reducing gear are arranged on the mounting rack; an opening is formed in the top of the polarization tank; a main shaft of the motor reducing gear is connected to a lifting mechanism located in the polarization tank in a transmission manner; a multi-stage clamping device is arranged on the lifting mechanism inside the polarization tank and is located below the opening; a tank cover for blocking off the opening is arranged on the multi-stage clamping device; replaceable polarization pressure heads with different structures are arranged in the multi-stage clamping device; and a thermocouple is inserted into the polarization tank. The piezoelectric ceramic and piezoelectric semiconductor test piece diversity polarization experiment system has the beneficial effects that the simultaneous polarization of multiple piezoelectric ceramics and piezoelectric semiconductor test pieces can be realized; different voltages can be applied to the piezoelectric ceramics and piezoelectric semiconductor test pieces; the experiment system ensures that the piezoelectric ceramics and piezoelectric semiconductor test pieces have relatively good polarization consistency; experimental errors caused by change of environmental conditions are greatly reduced; and the efficiency, safety and consistency of manufacturing the piezoelectric ceramics and piezoelectric semiconductor test pieces in laboratories are greatly improved.

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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