Detecting apparatus and method
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United States of America Patent
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Oct 4, 2022
Grant Date -
May 20, 2021
app pub date -
Oct 3, 2017
filing date -
Dec 12, 2016
priority date (Note) -
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Abstract
A method and apparatus for detecting pipe entrenchment or upheaval of a flexible pipe and/or the presence of an external feature to the flexible pipe. The method includes helically winding a temperature sensing element around a layer of a flexible pipe, helically winding a heating element around a layer of a flexible pipe, heating the heating element to a pre-determined temperature, measuring the temperature at at least two locations along the flexible pipe, comparing the measured temperature response at the at least two locations, and making a determination, from the comparison of measured responses, regarding the exterior vicinity of the pipe at one of the at least two locations.
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