Piezoelectrically driven vibration wave motor

Details Piezoelectrically driven vibration wave motor Piezoelectrically driven vibration wave motor

1983-12-08

1985-03-12

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, 310328, H01L 4108

Patent

active

045047600

ABSTRACT:
A vibration wave motor comprises a movable member friction-contacted to a vibration member, a plurality of electrostrictive element groups oppositely arranged on the opposite surfaces of the vibration member, and voltage applying means for applying voltages to the electrostrictive element groups to generate travelling vibration waves in the vibration member. The electrostrictive elements are arranged such that the electrostrictive elements oppositely arranged on the opposite surfaces of the vibration member are strained in the opposite directions when the voltages are applied thereto.

REFERENCES:
patent: 4019073 (1977-04-01), Vishnevsky et al.

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