Vibration wave motor

Details Vibration wave motor Vibration wave motor

1985-03-28

1987-02-24

Salce, Patrick R.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, H01L 4108

Patent

active

046459642

ABSTRACT:
A motor which drives a movable member by a travelling vibration wave generated in a vibration member having electrostrictive elements arranged with a phase difference therebetween is disclosed. The electrostrictive elements are stacked in a lamination direction with the phase difference therebetween so that a contact area between the electrostrictive elements and the vibration member is increased and a high output and high efficiency drive is attained.

REFERENCES:
patent: 4495432 (1985-01-01), Katsuma et al.
patent: 4504760 (1985-03-01), Yamamoto et al.
patent: 4562373 (1985-12-01), Tokusima et al.
patent: 4587452 (1986-05-01), Okumura et al.

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