Ultrasonic transducer

Details Ultrasonic transducer Ultrasonic transducer

1992-07-28

1995-08-29

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310334, 310335, 310321, 381190, H01L 4108

Patent

active

054463327

ABSTRACT:
Several exemplary embodiments for an ultrasound transducer are suggested, in which the sound propagation in the vertical plane is narrow-angled and in the horizontal plane wide-angled by means of appropriate damping measures. The effect on the propagation characteristic is achieved by means of the embodiment in accordance with the invention of the oscillating diaphragm and/or the housing, as well as multiple disposition of piezo oscillators. Because of these measures, damping of the sound waves or the sensitivity of the sensor is approximately the same over the entire horizontal angle up to almost 180.degree..

REFERENCES:
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patent: 4214484 (1980-07-01), Abts
patent: 4276491 (1981-06-01), Daniel
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patent: 4486742 (1984-12-01), Kudo et al.
patent: 4556814 (1985-12-01), Ito et al.
patent: 4561064 (1985-12-01), Bruggen et al.
patent: 4751419 (1988-06-01), Takahata
patent: 4996713 (1991-02-01), Bittencourt

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