Device for the calibration of an ultrasonic transducer

Details Device for the calibration of an ultrasonic transducer Device for the calibration of an ultrasonic transducer

1982-01-25

1984-02-14

Kreitman, Stephen A.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01N 2900

Patent

active

044308833

ABSTRACT:
A device for the calibration of an ultrasonic transducer includes a container (4) in which are immersed a calibration transducer (1), a rigid flat body (2) which contacts the front of the transducer (1) by way of a bevelled edge so that the distribution of the ultrasonic velocities is not disturbed in any way, a rigid hemisphere (3) which projects from a first principal surface (8) of the body, and the transducer (5) to be calibrated. The transducer (5) is displaceable so that a beam of ultrasonic energy to be emitted or received by this transducer can pass through any point situated within or near the hemisphere (3).

REFERENCES:
Ultrasonic Transducer Analyzer, NASA Tech. Briefs, MFS-25410, p. 59, Spring 1981.

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