Underground conduit defect localization

Details Underground conduit defect localization Underground conduit defect localization

1994-11-09

1996-07-02

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73592, G01M 3080

Patent

active

055310990

ABSTRACT:
A method of locating a defect in a buried conduit by sensing vibrations generated at the defect, processing signals detected by sensors to generate a cross-correlation function, smoothing this function to obtain a peak, calculating a center velocity of acoustic energy propagation, and using the center velocity of acoustic energy propagation to calculate the location of the defect.

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