Vibration driven apparatus

Details Vibration driven apparatus Vibration driven apparatus

1990-12-07

1992-10-13

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

051554070

ABSTRACT:
In a vibration wave driven motor having a vibration member having an electro-mechanical energy conversion element secured to one surface of a resilient member of an elliptical shape formed by straight portions and arcuate portions, and a member brought into pressure contact with the other surface of the resilient member and wherein AC voltages having a phase difference of 90.degree. therebetween in terms of time are applied to the driving phases of the electro-mechanical energy conversion element divided into two phases to thereby generate a travelling vibration wave in the resilient member, whereby the vibration member and the member brought into pressure contact therewith are moved relative to each other, the two driving phases of the electro-mechanical energy conversion element are polarization-processed in such a manner that only one travelling wave is formed in the straight portions of the resilient member.

REFERENCES:
patent: 4580073 (1986-04-01), Okumura et al.
patent: 4672256 (1987-06-01), Okuno et al.
patent: 4692652 (1987-09-01), Seki et al.
patent: 4723129 (1988-02-01), Endo et al.
patent: 4740796 (1988-04-01), Endo et al.
patent: 4978882 (1990-12-01), Kitani

Affiliated with

Also associated with

Rating

Vibration driven apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration driven apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration driven apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1303315