Piezo-electric actuator operable in an electrolytic fluid

Details Piezo-electric actuator operable in an electrolytic fluid Piezo-electric actuator operable in an electrolytic fluid

1998-11-10

2000-09-12

Ramirez, Nestor

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310340, H01L 4104

Patent

active

061182079

ABSTRACT:
A piezo-electric actuator operable in a fluid. The actuator has a piezo-electric element having one or more layers of piezo-electric material and electrodes adjacent to the piezo-electric material, the electrodes being coupled to electrical leads. A conductive layer surrounds the piezo-electric element, serving as a Faraday cage for shielding the fluid from effects due to electric fields within the conductive layer. A seal substantially impermeable to the fluid surrounds the piezo-electric element.

REFERENCES:
patent: 4553059 (1985-11-01), Abe et al.
patent: 4565942 (1986-01-01), Sakai et al.
patent: 4933919 (1990-06-01), Geil et al.
patent: 4939405 (1990-07-01), Okuyama et al.
Graf, Rudolf. Radio Shack Dictionary of Electronics, 4th Ed. Indiana, Howard W. Sams & Co., Inc., 1972, p. 211.
Japanese Patent Abstract 61046082, Mar. 6, 1984, Nippon Telegr & Teleph Corp.

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