Sound transducer apparatus system and method

Details Sound transducer apparatus system and method Sound transducer apparatus system and method

1984-05-02

1986-01-21

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73629, 73633, G01N 2900

Patent

active

045650950

ABSTRACT:
An apparatus for emitting and receiving sound signals includes a cylinder into which a sound transducer is mounted. The transducer is mounted to transmit a sound beam normal to the axis of the cylinder. The cylinder is connected to a position detection circuit for determining the angular position of the cylinder about its axis. A system for processing data produced by such a sound transducer apparatus includes circuitry for determining the true position of the cylinder from the position circuit, for alternately causing the transducer to emit and receive sound energy, and for sampling the energy signal received by the transducer when the position detection circuit indicates that the cylinder is at one of several preselected angles. The sampled information is recorded on paper or magnetic media.

REFERENCES:
patent: 2602102 (1952-07-01), Webb
patent: 3938372 (1976-02-01), Sproule
patent: 4092867 (1978-06-01), Matzuk
patent: 4341120 (1982-07-01), Anderson
patent: 4377088 (1983-03-01), Evert
patent: 4399703 (1983-08-01), Matzuk

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