Piezoelectric actuator device

Details Piezoelectric actuator device Piezoelectric actuator device

1995-05-05

1996-05-14

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

055170749

ABSTRACT:
A piezoelectric actuator, which has a large displacement rate and a relatively simple structure, is capable of providing an output without the need for a specific support and can be manufactured at low costs, is provided. The piezoelectric actuator 10 takes a planar plate-like form and has first and second layer regions 11 and 12 lying one upon the other. The first layer region 11 is formed comprising a piezoelectric ceramic material and contains electrodes 13-1 to 13-n for receiving an actuation voltage to cause this first layer region to contract in a plane parallel thereto. The second layer region 12 is formed integrally with the first layer region 11 and comprises a ceramic material.

REFERENCES:
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patent: 5023503 (1991-06-01), Legge et al.
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patent: 5262696 (1993-11-01), Culp
patent: 5278471 (1994-01-01), Uehara et al.
patent: 5286199 (1994-02-01), Kipke
patent: 5296262 (1994-03-01), Didden
patent: 5327041 (1994-07-01), Culp
patent: 5406162 (1995-04-01), Hasegawa

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