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Burner flame sensing system and method

  • US 5,077,550 A
  • Filed: 09/19/1990
  • Issued: 12/31/1991
  • Est. Priority Date: 09/19/1990
  • Status: Expired due to Term
First Claim
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1. A flame analyzer comprising:

  • a sensor for detecting radiation produced by a flame and producing an electrical signal indicative of the radiation;

    means for converting the electrical signal into a spectrum comprising a plurality of component frequencies of the electrical signal, the component frequencies resulting from changes in power of the flame with time, and wherein each component frequency has an amplitude;

    means for determining a degree of linearity of a distribution of component frequency amplitudes throughout the spectrum; and

    means for determining a characteristic of the flame in response to the degree of linearity.

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