Wear plate for piezoelectric ultrasonic transducer arrays

Details Wear plate for piezoelectric ultrasonic transducer arrays Wear plate for piezoelectric ultrasonic transducer arrays

1978-11-08

1980-07-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

73642, 73644, 128660, 128663, 310334, 310335, 310336, H01L 4110

Patent

active

042119499

ABSTRACT:
A linear transducer array for 90.degree. or other wide angle sector scans is covered by a body contacting wear plate made of a material such as filled silicone rubber or polyurethane epoxy in which the longitudinal sound velocity is equal to or less than that in the body and in which the acoustic impedance for longitudinal sound waves is approximately equal to that of the body. Refraction, if it occurs, enhances the field of view without reducing the transmission of acoustic energy. The wear plate provides mechanical support for a fragile front surface matched array.

REFERENCES:
patent: 2527217 (1950-10-01), Hayes
patent: 3277451 (1966-10-01), Parssinen
patent: 3409869 (1968-11-01), McCool et al.
patent: 3457543 (1969-07-01), Akervold et al.
patent: 3622825 (1971-11-01), Bennett
patent: 3657181 (1972-04-01), Riedesel et al.
patent: 3854060 (1974-12-01), Cook
patent: 4101795 (1978-07-01), Fukumoto et al.

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