Apparatus and method for generating mechanical waves

Details Apparatus and method for generating mechanical waves Apparatus and method for generating mechanical waves

1982-10-25

1985-06-18

Wong, Peter S.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310345, 310348, 331158, H01L 4108

Patent

active

045242950

ABSTRACT:
Mechanical waves are generated in a medium by subjecting an electromechanical element to an alternating electric field having a frequency which induces mechanical resonance therein and is below any electrical resonance frequency thereof.

REFERENCES:
patent: 2488781 (1949-11-01), Reeves
patent: 3268855 (1966-08-01), Hagey
patent: 3376438 (1968-04-01), Colbert
patent: 3804329 (1974-04-01), Martner
patent: 4302826 (1981-11-01), Kent et al.
patent: 4373143 (1983-02-01), Lindberg
patent: 4442372 (1984-04-01), Roberts

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