Piezoelectric actuator and process for fabricating the same

Details Piezoelectric actuator and process for fabricating the same Piezoelectric actuator and process for fabricating the same

1995-05-01

1995-12-19

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, H01L 4108

Patent

active

054771021

ABSTRACT:
A piezoelectric actuator includes an electrostrictive effect element, a metal case shaped to be cylindrical for housing the electrostrictive effect element, top and bottom caps for covering top and bottom openings of the metal case, respectively, and locating plates fixed at top and bottom portions of the electrostrictive effect element. The locating plates are set in hollow portions formed at center of the caps, so that the electrostrictive effect element is positioned and fixed at the center of the piezoelectric actuator.

REFERENCES:
patent: 4633120 (1986-12-01), Sato et al.
patent: 5053671 (1991-10-01), Kobayashi et al.
patent: 5113108 (1992-05-01), Yamashita et al.
patent: 5208506 (1993-05-01), Yamashita
patent: 5239223 (1993-08-01), Miyoshi
patent: 5250868 (1993-10-01), Shirasu
patent: 5272797 (1993-12-01), Miyoshi

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