Acoustic method for locating concealed pipe
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United States of America Patent
Stats
-
Jul 7, 1992
Grant Date -
N/A
app pub date -
Jan 18, 1991
filing date -
Jan 18, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for determining the location of a concealed pipe is disclosed. An identifiable acoustic signal is injected into the concealed pipe. The signal propagates along the interior length of the pipe. The signal is detected by an array of detectors positioned at varying distances from the pipe. The detected signal generates voltage outputs from the detectors to a signal processor. The 'time-of-flight' of the acoustic signal from the point of generation to the point of detection is measured by the signal processor. The detector measuring the shortest 'time-of-flight' is closest to the concealed pipe.
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