Ultrasonic centering apparatus

Details Ultrasonic centering apparatus Ultrasonic centering apparatus

1978-04-14

1980-05-06

Tubbesing, T. H.

Communications, electrical: acoustic wave systems and devices

Echo systems

Returned signal used for control

G01B 1700

Patent

active

042019710

ABSTRACT:
An ultrasonic centering apparatus, wherein it comprises at least one ultrasonic transducer placed within an enclosure, said transducer transmitting at least one ultrasonic wave, means for collecting the different ultrasonic echos from the walls of said enclosure, means for measuring the time gap separating the reception of the different echos and means for displacing the transducer or transducers until the different echos are received at the same time by said echo receiving means.
A particular application of the invention is to the centering of inspection equipment in the tubes of nuclear reactor vessels.

REFERENCES:
patent: 3021706 (1962-02-01), Cook et al.
patent: 3028752 (1962-04-01), Bacon
patent: 3140612 (1964-07-01), Houghton
patent: 3237150 (1966-02-01), Beck et al.

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