Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly
作者： Peter Berkeley Wills , Jeffery Joseph Mestayer
DOI:
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摘要: A Distributed Acoustic Sensing (DAS) fiber optical assembly comprises adjacent lengths of A, B with different directional acoustic sensitivities, for example by providing the first length a coating 35, such as acrylate, and second 36, copper, wherein coatings 35 36 may be selected that Poisson's ratio coated is from B. The ratios and/or other properties improve their sensitivity ability to detect broadside (radial) waves.
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