Sensing cable with parallel spiral transmission line structure for distributed sensing and measuring of rock-soil mass deformation
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United States of America Patent
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Apr 11, 2017
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app pub date -
Nov 13, 2012
filing date -
Nov 15, 2011
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Abstract
This present disclosure provides a sensing cable of parallel spiral transmission line structure for distributed sensing and measuring of rock-soil mass deformation. A circular cross-section of a silicone strip is tightly wounded by two mutually-insulated wires. The two mutually-insulated wires form the spiral cable. The two mutually-insulated wires are wrapped around and covered by a silicone shroud. They constitute a sensing cable. A termination matching impedance is connected to one end of each of the two mutually-insulated wires. A time domain reflectometry measurement instrument is connected to the other end of the two mutually-insulated wires. The present disclosure implements a distributed positioning and measurement of rock-soil mass deformation.
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