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Electrochemical sensor for trace gases in a fluid-mixture, and regulation system of the air-fuel ratio in an air-fuel mixture using such a sensor
Electrochemical sensor for trace gases in a fluid-mixture, and regulation system of the air-fuel ratio in an air-fuel mixture using such a sensor
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机译:用于流体混合物中微量气体的电化学传感器,以及使用该传感器的混合气中空燃比的调节系统
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摘要
Electrochemical sensor for the concentrations of species in a fluid mixture comprising a measuring cell of the type having a partial pressure internal reference electrode incorporating a catalysis region in which the gaseous mixture is brought into thermodynamic equilibrium and functioning according to the so-called "assay" process, so that only a small quantity of the gaseous mixture to be analyzed is admitted into the sensor. It also comprises a supplementary cell functioning as an ionic pump, so as to continuously modify the composition of the gaseous mixture admitted into the sensor under the control of a regulatable electric current.
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