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Nondispersive infrared gas analyzer

  • US 4,437,005 A
  • Filed: 11/17/1981
  • Issued: 03/13/1984
  • Est. Priority Date: 11/17/1980
  • Status: Expired due to Fees
First Claim
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1. A nondispersive infrared gas analyzer of the type having a plurality of gas-filled chambers arranged in the propagation path of modulated infrared radiation, and a measuring pickup for producing an electrical measurement signal, the nondispersive infrared gas analyzer further comprising:

  • pulsed energy supply means for producing electrical pulses having a duty cycle which is less than 1;

    infrared radiation means for producing infrared radiation which is modulated in response to said duty cycle of said pulsed energy supply means, said infrared radiation means having a predetermined continuous power rating; and

    pulse control means for terminating each of said electrical pulses from said pulsed energy supply means in response to a peak value of a corresponding pulse in the electrical measurement signal.

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