Gas sensor arrangement
First Claim
1. A gas sensor system for he detection of an oxidizable gas in the presence of a reducing gas capable of masking the detection of said oxidizable gas, comprising:
- first sensor sensitive to an oxidizable gas which generates a signal representative of the concentration of the oxidizable gas, said signal capable of being masked by a reducible gas;
a second sensor sensitive to said reducible gas; and
a signal evaluator connected to said first and second sensors and provided with logic circuitry which eliminates from said signal any falsifying effect which may be created by the reducible gas thereby providing an output representing a true concentration of said oxidizable gas.
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Accused Products
Abstract
A gas sensor arrangement has at least a first sensor element which is primarily sensitive towards oxidizable gases and generates a corresponding measuring signal and an electric control and evaluation unit, wherein the measuring signal generated by the first sensor element is evaluated. In order to avoid inaccuracies when in addition to the oxidizable gases at the same time also reducible gases are present, the gas sensor arrangement is provided with at least one second sensor element, which is primarily sensitive to reducible gases and generates a corresponding measuring signal, which is fed to the control and evaluation unit for evaluation.
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Citations
23 Claims
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1. A gas sensor system for he detection of an oxidizable gas in the presence of a reducing gas capable of masking the detection of said oxidizable gas, comprising:
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first sensor sensitive to an oxidizable gas which generates a signal representative of the concentration of the oxidizable gas, said signal capable of being masked by a reducible gas; a second sensor sensitive to said reducible gas; and a signal evaluator connected to said first and second sensors and provided with logic circuitry which eliminates from said signal any falsifying effect which may be created by the reducible gas thereby providing an output representing a true concentration of said oxidizable gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification