Piezoelectric relay with a piezoelectric longitudinal effect act

Details Piezoelectric relay with a piezoelectric longitudinal effect act Piezoelectric relay with a piezoelectric longitudinal effect act

1985-04-18

1986-11-11

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310346, H01L 4108

Patent

active

046224840

ABSTRACT:
A miniature relay having dimensions in the order of 30 mm.times.24 mm.times.4 mm is driven by an expansion type piezoelectric actuator element. The actuator drives an interconnected series of lever arms which rest on a mounting block. The actuator rests on an anchor block. The coefficients of thermal expansion for the actuator, the mounting block and the anchor block are mutually cancelling.

REFERENCES:
patent: 2878452 (1959-03-01), Rohr et al.
patent: 3688135 (1972-08-01), Koda et al.
patent: 4406966 (1983-09-01), Paros
patent: 4454442 (1984-06-01), Hosking
patent: 4460840 (1984-07-01), Weiger et al.
patent: 4518887 (1985-05-01), Yano et al.
Gordon & Breach, "Internal Electrode Piezoelectric Ceramic Actuator", By: Takahashi et al., 1983 vol. 50, pp. 181-190.
Proceedings of the 3rd Sensor Symposium 1983, pp. 261-265, "Piezoelectric Ceramic Tiny Actuators", by Ochi et al.

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