FIBER OPTIC PIPELINE ACOUSTIC MEASUREMENT METHOD, DEVICE, AND SYSTEM
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United States of America Patent
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Issued Date -
Oct 29, 2015
app pub date -
Apr 24, 2014
filing date -
Apr 24, 2014
priority date (Note) -
Abandoned
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Abstract
A method of monitoring a pipe using a measurement device connected to an optical fiber cable that is wrapped around the pipe along a length of the pipe includes generating a first light pulse such that the first light pulse propagates through the optical fiber cable towards the pipe; receiving, at the measurement device, a plurality of second light pulses reflected from a plurality of different reflection points within the optical fiber cable, respectively, the plurality of different reflection points being located at a plurality of different locations along the length of the pipe, the plurality of light pulses each being reflected forms of the first light pulse; and determining one or more optical path length (OPL) change measurements based on the plurality of second light pulses, the one or more OPL change measurements corresponding, respectively, to the one or more different location along the length of the pipe.
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