Piezoelectric device testing device

Abstract

The invention provides a piezoelectric device testing device, which comprises an electrode holder, a base connected with the electrode holder and a pressing rod, wherein the electrode holder comprisestwo electrode blocks which are insulated from each other and are respectively connected with the access end of testing equipment and a pressing block arranged above the electrode blocks, and positiveand negative wires of a tested piezoelectric device are connected between the electrode blocks and the pressing block; a mounting hole is formed in the base, and an ejector rod protruding out of theupper surface of the base and a spring which is sleeved with an inner hole of the ejector rod and enables the ejector rod to rebound upwards are mounted in the mounting hole; the pressing rod can rotate around a shaft located between the pressing block and the ejector rod so as to play a lever role and comprises a first rod part and a second rod part, the first rod part is located on the side, which is close to the ejector rod, of the shaft, the lower surface of the first rod part makes contact with the top of the ejector rod, and the second rod part is located on the other side, which is close to the pressing block, of the shaft and connected with the pressing block. The test efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the field of testing piezoelectric devices, in particular to a testing device for piezoelectric devices. Background technique [0002] Existing piezoelectric devices, especially two-terminal piezoelectric devices led by wires, usually use an impedance analyzer (such as Agilent4294A) to clamp the positive and negative wires into the test fixture, such as the 16047E fixture, when testing its electrical properties. It is fixed by two screws. It is necessary to unscrew and tighten the screws to remove and install the positive and negative wires. For the testing of mass-produced products, on the one hand, it is easy to damage the fixture screws repeatedly, and more importantly, the test efficiency is too low. , it is difficult to meet the needs of mass production. Contents of the invention [0003] In view of the above, the object of the present invention is to provide a testing device for piezoelectric devices, which can effecti...

AI Technical Summary

Problems solved by technology

[0002] Existing piezoelectric devices, especially two-terminal piezoelectric devices led by wires, usually use an impedance analyzer (such as Agilent4294A) to clamp the positive and negative wires into the test fixture, such as the 16047E fixture, when testing its electrical properties. It is fixed by two screws. It is necessary to loosen and tighten the screws to remove and install the positive and negative wires. For the testing of mass-produced products, on the one hand, it is easy to damage the fixture screws repeatedly, and more importantly, the test efficiency is too low. , it is difficult to meet the needs of mass production

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