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Self aligning fiber optic microbend sensor

  • US 4,678,903 A
  • Filed: 01/27/1986
  • Issued: 07/07/1987
  • Est. Priority Date: 01/27/1986
  • Status: Expired due to Fees
First Claim
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1. A self aligning microbend sensor comprisinga tubular housing having internal threads,an expandable insert with external threads loosely threaded into the housing with sufficient tolerance to allow expansion of the insert in response to a parameter being measured, anda fiber optic element between the housing and the insert and extending transverse to the threads, such that upon expansion of the insert the fiber optic element experiences microbending due to deformation by the threads.

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