Vibration driven motor

Details Vibration driven motor Vibration driven motor

H - Electricity

02

K

H02K 35/00 (2006.01)

Patent

CA 2048400

In an ultrasonic motor wherein a driving signal is applied to an electro-mechanical energy conversion element provided in a vibration member to thereby excite flexural vibrations of the same shape in the two different planes of the vibration member with a phase difference in time and thereby create rotational motion on the surface of the vibration member, thus frictionally driving a movable member which is in pressure contact with the vibration forming surface, electro-mechanical energy conversion elements for exciting the flexural vibrations are each disposed at a position whereat the sum totals of strains created in the electro- mechanical energy conversion elements are substantially equal to each other.

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