Piezoelectric polarization device and method

A piezoelectric and polarized electrode technology, applied in the direction of circuits, piezoelectric/electrostrictive/magnetostrictive devices, electrical components, etc., can solve the problem of large polarization and achieve the effect of avoiding unsafe factors

Inactive Publication Date: 2012-07-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different from large-scale industrial production, the polarization of piezoelectric devices in the laboratory requires a large number of tests on different materials and processes, while the original unipolar and low DC voltage artificial direct contact test devices are naturally Unable to meet the requirements of large polarization and ultra-high voltage polarization

Method used

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  • Piezoelectric polarization device and method
  • Piezoelectric polarization device and method
  • Piezoelectric polarization device and method

Examples

Experimental program
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Embodiment Construction

[0022] First, add silicone oil into the polarizing oil tank 3, then put 9 samples into the fixture at the same time, and control the polarizing oil tank 3 with a motor, so that all the fixtures with the test pieces are immersed in the silicone oil. At this time, the operator leaves the polarization host, and operates the remote high-voltage controller 6 and remote polarization controller 7 according to the requirements of the polarization process at a safe distance from the host: connect the high-voltage power supply, set the heating temperature of the polarization oil tank 3, Start the heating switch, the silicone oil starts to heat up, adjust the polarization voltage and polarization time, and carry out the polarization process. After the process is completed, there is no need for complete cooling of the silicone oil, and the motor can be controlled by the remote polarization controller 7 immediately to separate the fixture from the polarization oil tank 3, so that the test p...

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Abstract

The invention relates to a polarization technology of piezoelectric ceramic materials and aims at providing a piezoelectric polarization device and a piezoelectric polarization method. The device comprises a polarization host machine, wherein a polarization oil tank is arranged at the upper part of an electric control box and is connected to a motor through a lifting device, an electric heater is arranged in the polarization oil tank, a plurality of polarization electrodes are arranged under an upper side cover plate of the polarization oil tank, the lower ends of the polarization electrodes are provided with clamps used for clamping test pieces to be polarized, a 50KW high-voltage direct current power supply is connected to a remote high-voltage control instrument through a cable, the electric control box is connected to a remote polarization control instrument through a cable, and the remote high-voltage control instrument and the remote polarization control instrument are arranged beyond a distance being at least 1.5meters from the polarization host machine. Operators can operate the polarization host machine in a safe range in a remote control way, so unsafe factors of the operators are avoided. Polarization on a new test piece can be immediately carried out without long-time temperature rise, and the characteristics of energy saving and high efficiency are realized.

Description

technical field [0001] The invention relates to the polarization technology of piezoelectric ceramic materials, in particular to the polarization equipment and method of piezoelectric ceramics under the condition of 50KW ultra-high voltage. Background technique [0002] Piezoelectric ceramics are functional materials that convert mechanical energy to electrical energy, and are widely used in high-tech fields such as mobile communications, satellite broadcasting, electronic equipment, instrumentation, biology, and aerospace. With the development of science and technology, the performance and function requirements of piezoelectric devices are getting higher and higher, and it is urgent to develop new composite piezoelectric devices with larger piezoelectric constants and higher mechanical strength. Polarization is an essential process in the development of piezoelectric devices. Different from large-scale industrial production, the polarization of piezoelectric devices in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L41/24H01L41/253
Inventor 王治诸骏陈伟球
Owner ZHEJIANG UNIV
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