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    • 6. 发明授权
    • Methods of operation of electrochemical gas sensors
    • 电化学气体传感器的操作方法
    • US08317998B2
    • 2012-11-27
    • US12754023
    • 2010-04-05
    • Keith Francis Edwin PrattJohn ChapplesMartin JonesStefan Dan CosteaMihai Gologanu
    • Keith Francis Edwin PrattJohn ChapplesMartin JonesStefan Dan CosteaMihai Gologanu
    • G01F1/64G01N17/00G01N27/26
    • G01N27/404G01N33/007
    • A method of operating an electrochemical gas sensor includes: a) exposing, for a first predetermined duration, the electrochemical gas sensor to an atmosphere containing a target gas while the gas reaction capability of the electrode assembly is substantially reduced from a working level, such that target gas is collected within the housing; b) increasing the gas reaction capability of the electrode assembly to a level at which it consumes collected target gas and thereby outputs a signal to the sensing circuit, including an initial transient decay signal; c) monitoring the transient decay signal; and d) analysing the rate of decay of the transient decay signal to determine whether the performance of at least one component of the electrochemical gas sensor is within acceptable limits. An apparatus for operating an electrochemical gas sensor, adapted for connection to an electrochemical gas sensor via a sensing circuit for control thereof, can carry out the disclosed method(s).
    • 操作电化学气体传感器的方法包括:a)将电化学气体传感器第一预定持续时间暴露于含有目标气体的气氛,同时电极组件的气体反应能力从工作水平显着降低,使得 目标气体收集在壳体内; b)将电极组件的气体反应能力提高到消耗收集的目标气体的水平,从而将信号输出到感测电路,包括初始瞬态衰减信号; c)监测瞬态衰减信号; 以及d)分析瞬态衰减信号的衰减速率,以确定电化学气体传感器的至少一个部件的性能是否在可接受的极限内。 一种用于操作电化学气体传感器的装置,其可用于经由用于控制的感测电路连接到电化学气体传感器,可以执行所公开的方法。