Piezoelectric actuator

Details Piezoelectric actuator Piezoelectric actuator

1991-10-07

1993-08-17

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310366, H01L 4108

Patent

active

052372391

ABSTRACT:
In a piezoelectric actuator of the type which has a plurality of grooves on the outer side surface of the actuator body, mechanical reliability of the actuator is enhanced by providing grooves also in the respective layers of a material exhibiting electrostrictive effect located over and below the top and the bottom ends of the actuator. Moreover, a further improvement of mechanical strength can be attained by providing additional grooves onto the outer most grooves.

REFERENCES:
patent: 4523121 (1985-06-01), Takahashi et al.
patent: 5089739 (1992-02-01), Takahashi et al.

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