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Radiometric system

  • US 3,922,550 A
  • Filed: 12/28/1973
  • Issued: 11/25/1975
  • Est. Priority Date: 12/28/1973
  • Status: Expired due to Term
First Claim
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1. A radiometric system for simultaneously measuring the temperature and the emissivity of a radiating body in accordance with theoretical data derived for an ideal linear detector, the system comprising:

  • idealized ratio pyrometer means for generating two idealized brightness pyrometer signals in response to radiation received from the radiating body, each of the brightness pyrometer signals having respective components related to an associated constant factor, emissivity, and temperature of the radiating body, and producing an idealized ratio output signal independent of emissivity and indicative of the temperature of the radiating body; and

    emissivity circuit means operatively connected to the ratio pyrometer means for comparing the ratio output signal with one of the brightness pyrometer signals, and producing an output signal independent of the temperature and indicative of the emissivity of the radiating body.

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