Ultrasonic transducer

Details Ultrasonic transducer Ultrasonic transducer

1982-01-25

1984-02-21

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73147, 310800, G01N 2900

Patent

active

044322372

ABSTRACT:
Ultrasonic transducers, of an electrical capacitor formed of a counter-elrode and a synthetic material film lying thereon, held by a clamping ring and metallized on one side, are used amongst other things for running time measurements in flow field examinations in wind tunnels. It is in that case important to disturb the flow as little as possible by the spatial dimensions of the ultrasonic transducer and by the necessary mountings and current feeds. For the solution of the problem, it is proposed to fasten the counter-electrode (2) and the clamping ring (3) holding the synthetic material film (5) electrically insulated therefrom on a conductor plate (6) and electrically conductively to connect each with a respective conductor track portion (7, 8 or 7, 10, 8, 9).

REFERENCES:
patent: 3935485 (1976-01-01), Yoshida et al.

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