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Black body TRD temperature sensor

  • US 5,255,980 A
  • Filed: 05/14/1992
  • Issued: 10/26/1993
  • Est. Priority Date: 10/18/1990
  • Status: Expired due to Term
First Claim
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1. A TRD temperature sensing probe comprising:

  • probe means adapted to be thermally coupled to an environment whose temperature is to be sensed, the probe means havinga luminescing means responsive to temperature in a first temperature range to luminesce with a thermally responsive time-rate-of-decay, anda thin coating of inert material on the probe means responsive to temperature in a second temperature range to emit blackbody radiation, the second temperature range being different from the first temperature range; and

    an excitation source coupled to the probe for repetitively emitting excitation radiation on the luminescing means.

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