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Optical gas sensor with enriching polymer

  • US 5,233,194 A
  • Filed: 01/03/1992
  • Issued: 08/03/1993
  • Est. Priority Date: 01/03/1992
  • Status: Expired due to Term
First Claim
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1. A gas measurement sensor using electromagnetic radiation for detecting a selected gas in a test medium, said sensor comprising:

  • a transmission path for receiving a first electromagnetic radiation with at least one selected wavelength; and

    a measuring medium circumferentially coupling to said transmission path so that said first electromagnetic radiation is propagated circumferentially into said measuring medium, said measuring medium including a material for enhancing the concentration of said selected gas in said measuring medium relative to the concentration of said gas in said test medium when said sensor is immersed in said test medium.

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