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Method and apparatus for a non-contact measuring of a temperature of a body

  • US 4,887,229 A
  • Filed: 06/22/1987
  • Issued: 12/12/1989
  • Est. Priority Date: 06/20/1986
  • Status: Expired due to Fees
First Claim
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1. A measuring apparatus for a non-contact measurement of a temperature of a body, the apparatus comprising:

  • a first temperature sensor means for measuring a temperature of heat radiation received from a direction toward said body;

    a heat radiation chopper means disposed in front of a heat input region of the first temperature sensor means for chopping heat radiation;

    at least one second temperature sensor means arranged adjacent at least one of the chopper means;

    a multiplication unit connected after an output of the at least one second temperature sensor means wherein, a signal of an adjustable value signal is fed to the second input of the multiplication unit, an output of the multiplication unit is fed to a summation unit, an adjustable value signal is fed as a second input to said summation unit, an output of the first temperature sensor means is transmitted to a numerator input of a dividing unit, a denominator input of the dividing unit is fed with an output signal of the summation unit; and

    wherein an output of the dividing unit as well as an output from the second temperature sensor means are transmitted to a summation unit, and an output of which represents the temperature of the body.

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