Measuring and testing – With fluid pressure – Leakage
Patent
1997-05-06
1999-11-02
Brock, Michael
Measuring and testing
With fluid pressure
Leakage
364507, 73592, G01M 324
Patent
active
059748621
ABSTRACT:
The invention relates to detecting leaks in a pipeline using enhanced methods of data sensing, digitally encoded transmission, and cross-correlation. A plurality of acoustic sensors are applied to the pipeline to sense a combination of signals from the leak and much greater quantities of noise. The sensed data is digitized at the sensor, encoded and digitally transmitted to a computerized base station. The encoded data from a plurality of sensors received at the base station is decoded, digitally filtered and cross-correlated. Enhanced methods of cross-correlation are performed to estimate the likely presence of a leak and the location and size of any leaks present. Participation in the leak detection procedure by an expert not present at the pipeline is facilitated by communication of data between the base station and a distant supervisory station.
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Lander Paul
Saltzstein William E.
Brock Michael
Flow Metrix, Inc.
Hayden John
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