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Pressure compensated hydrophone

  • US 7,082,079 B2
  • Filed: 04/19/2005
  • Issued: 07/25/2006
  • Est. Priority Date: 03/20/2003
  • Status: Expired due to Term
First Claim
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1. A hydrophone assembly for detecting dynamic acoustics, comprising:

  • a mandrel with an inner cavity;

    an optical fiber coiled around an outside surface of the mandrel; and

    a micro-hole configured to provide fluid communication between an interior of the inner cavity and an exterior surrounding the mandrel, wherein a diameter of the micro-hole is such that pressure waves above three hertz are unable to pass through the micro-hole.

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