Vibration wave motor

Details Vibration wave motor Vibration wave motor

1992-01-30

1994-04-05

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

053008502

ABSTRACT:
A vibration wave device having a resilient member, and electro-mechanical energy conversion means for inducing a travelling vibration wave in the resilient member, the travelling vibration wave being used as a drive source, includes means provided on at least one member of the vibration wave device at a location integer times or approximately integer times 1/2 of the wavelength of a vibration wave which may produce noise and making the dynamic rigidity of the member non-uniform.

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patent: 4829209 (1989-05-01), Kawasaki et al.
patent: 4882500 (1989-11-01), Iijima
patent: 5099166 (1992-03-01), Hirano et al.
patent: 5157300 (1992-10-01), Kataoka et al.

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