Partitioned polarization device for piezoelectric element

Abstract

The invention discloses a partitioned polarization device for a piezoelectric element, which belongs to the technical field of polarization of materials with piezoelectric characteristics. The device includes a partition voltage regulation module, a probe regulation module and a polarization control module; the partition voltage regulation module can adjust the polarization voltage of each partition to realize independent control of the polarization partition electric field; the probe regulation module adopts The method of elastically stretching the probe with the probe positioning bracket can realize the precise positioning and synchronous polarization of multiple hundreds of micron-scale tiny electrodes; the polarization control module can control the time change of the total voltage required for polarization and the polarization temperature curve. The present invention realizes the independent control of multi-partition polarization electric field, can simultaneously polarize multi-partition piezoelectric elements at one time, and avoids the problem of thermal depolarization of piezoelectric elements caused by repeated multiple polarizations and inconsistency of partition polarization intensity; solves the problem of The problems of difficult operation, difficult positioning, and single polarization area in the traditional method are solved, and the polarization quality of the partitioned piezoelectric element is improved.

Description

technical field [0001] The invention belongs to the technical field of polarization of materials with piezoelectric characteristics, in particular to a partitioned polarization device for piezoelectric elements. Background technique [0002] Piezoelectric elements have a special piezoelectric effect, which can realize the mutual conversion between mechanical vibration and electrical signals, and are widely produced into various high-performance piezoelectric devices. These devices have the characteristics of sensing, execution and control, and are widely used in medical Diagnosis, structural control, aerospace, weaponry and other fields have broad application prospects. [0003] Polarization is an important link to obtain piezoelectric properties of piezoelectric elements, and is the basis for realizing various functional characteristics of piezoelectric devices. Normally, polarization is a process in which a polarizing electric field is applied above the Curie point of the...

AI Technical Summary

Problems solved by technology

The invention adopts the method of elastic telescopic probes and probe positioning brackets to realize precise positioning and synchronous polarization of a plurality of hundreds of micron-level micro-electrodes, improves the polarization quality of partitioned piezoelectric elements, and solves the problem of polarization in traditional methods. Difficult to operate, difficult to locate, single polarization area, etc.

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