Method of locating sound generation within enclosure

Details Method of locating sound generation within enclosure Method of locating sound generation within enclosure

1980-03-12

1982-09-28

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With time interval measuring means

343112C, G01S 518

Patent

active

043521673

ABSTRACT:
A number of sound detectors are provided on an external enclosure of a pressure vessel of a nuclear reactor. Output signals produced from the individual detectors are combined into a pattern in terms of time difference of the detector output signals relative to the time point at which the detected signal is first produced in response to the sound signal and relative peak values of the detector output signals relative to the magnitude of the output signal produced by the detector which detects the sound signal with the highest sensitivity. The pattern thus obtained is then compared with patterns which have been previously prepared by intentionally producing the sound signals at locations in interest within the pressure vessel, to thereby estimate the location within the pressure vessel at which the sound is produced.

REFERENCES:
patent: 2368953 (1945-02-01), Walsh
patent: 3886553 (1975-05-01), Bates
patent: 4031501 (1977-06-01), Caruso

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