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Apparatus for analysing a plurality of mixed gases

  • US 3,893,770 A
  • Filed: 09/04/1973
  • Issued: 07/08/1975
  • Est. Priority Date: 09/05/1972
  • Status: Expired due to Term
First Claim
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1. AN APPARATUS FOR ANALYZING A COMPOSITE GAS COMPRISING:

  • MEANS FOR OBTAINING AN ABSORPTION SPECTRUM OF EACH OF NO2 GAS, SO2 GAS, AND NO GAS, THE INTERFERENCES BETWEEN EACH GAS BEING IRREVERABLE;

    MEANS FOR CONVERTING SAID EACH RESPECTIVE ABSORPTION SPECTRUM INTO A FIRST A SECOND A THIRD ELECTRICAL SIGNAL IN ACCORDANCE WITH THE INTENSITY OF THE SPECTRUM THEREOF, MEANS FOR GENERATING A FOURTH ELECTRICAL SIGNAL FOR SIMULATING THE INTERFERANCE BETWEEN SAID NO2 GAS AND SO2 GAS, WHICH HAS THE FIRST ELECTRICAL SIGNAL AS AN INPUT SIGNAL, A FIRST ADDER WHICH HAS THE FORTH ELECTRICAL SIGNAL AND THE SECOND ELECTRICAL SIGNAL AS AN INPUT SIGNAL, MEANS FOR GENERATING A SIXTH ELECTRICAL SIGNAL FOR SIMULATING THE INTERFERANCE BETWEEN SAID SO2 GAS AND NO GAS WHICH HAS A FIFTH ELECTRICAL SIGNAL DERIVED FROM SAID ADDER AS AN INPUT SIGNAL, A FIRST SUBTRACTOR WHICH HAS THE THIRD ELECTRICAL SIGNAL AND THE SIXTH SIGNAL AS AN INPUT SIGNAL, MEANS FOR GENERATING A SEVENTH ELECTRICAL SIGNAL FOR SIMULATING THE INTERFERANCE BETWEEN SAID NO2 GAS AND SAID NO GAS WHICH HAS THE FIRST ELECTRICAL SIGNAL AS AN INPUT, A SECOND SUBSTRACTOR WHICH HAS THE SEVENTH ELECTRICAL SIGNAL AND A EIGHTH ELECTRICAL SIGNAL DERIVED FROM THE FIRST SUB TRACTOR AS AN INPUT SIGNAL.

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