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Active chemical sensor with optical fiber and its production process

  • US 5,028,395 A
  • Filed: 07/16/1990
  • Issued: 07/02/1991
  • Est. Priority Date: 07/20/1989
  • Status: Expired due to Fees
First Claim
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1. Active chemical sensor with optical fiber for measuring a determined physical quantity of fluid, comprising a chemical reagent appropriate for the measurement and able to react with the fluid, a support means (20a, 28) for the reagent and a single optical fiber (20) for supplying light to the reagent and for recovering the light reflected by the reagent, the sensor being characterized in that the support means has a crosslinked vinyl imidazole polymer or copolymer film (28) in which the reagent is immobilized, said film being bonded directly on one end (20a) of the optical fiber (20).

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