Ultrasonic transducer for single frequency applications

Details Ultrasonic transducer for single frequency applications Ultrasonic transducer for single frequency applications

1981-03-30

1982-12-28

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310336, 73632, H01L 4108

Patent

active

043664067

ABSTRACT:
An ultrasonic transducer has two impedance matching layers bonded to the transducer element which have different thicknesses and are 90.degree.-100.degree. and 35.degree.-55.degree. matching layers. This structure has a high sensitivity comparable to a broadband front surface matched transducer with quarter wavelength (90.degree. and 90.degree.) matching layers, and has primarily a single resonant mode so as to be suitable for relatively narrow band applications.

REFERENCES:
patent: 4101795 (1978-07-01), Fukumoto et al.
patent: 4211948 (1980-07-01), Smith et al.
patent: 4211949 (1980-07-01), Brisken et al.
patent: 4217516 (1980-08-01), Iinuma et al.
patent: 4217684 (1980-08-01), Brisken et al.

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