Ultrasonic wave conversion apparatus

Details Ultrasonic wave conversion apparatus Ultrasonic wave conversion apparatus

1981-09-24

1984-12-04

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Signal transducers

310321, 310322, 179140, 179110A, G01V 118, H04R 116

Patent

active

044868685

ABSTRACT:
An ultrasonic wave conversion apparatus comprises electrodes, a support member for supporting the electrodes, a vibrator secured to the support member by a securing member, and a moving diaphragm fixed to the vibrator by a fixing member. The surface of portions of the electrodes, the vibrator, the moving diaphragm and the fixing member are coated with an insulating film of a predetermined thickness. The coating with this insulating film provides the apparatus with an excellent insulating and anticorrosive property and further an excellent damping characteristic for the vibration of the vibrating members of the apparatus.

REFERENCES:
patent: 3675053 (1972-07-01), Mifune et al.
patent: 4193009 (1980-03-01), Durley

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