Detection of leaks in pipelines

Details Detection of leaks in pipelines Detection of leaks in pipelines

1992-10-09

1995-05-16

Voeltz, Emanuel T.

Boots, shoes, and leggings

364510, 73 405A, 73592, G01M 324, G06G 757

Patent

active

054167248

ABSTRACT:
An apparatus and process for determining the existence and location of a leak in an underground pipe, comprises a plurality of remote acoustic transmission sensor units distributed along the pipe and each containing equipment for analyzing acoustic signals from the pipe. The equipment includes a mechanism for identifying acoustic features of the acoustic signals which distinguish the acoustic signals of a leak from ambient acoustic signals. A control unit is connected to each of the remote units and includes additional equipment for further analyzing the signals to determine the proximity of the signal to a particular remote unit and, using the amplitude of the signal and the transmission characteristics of the pipe, determining the location of the leak.

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Spectral Analysis of Sound and Vibration Measurements: Cepstrum Analysis; Bruel & Kjaer Seminar Held Nov. 29, 1989.

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