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    • 3. 发明授权
    • Carbon monoxide gas sensor and measuring device using the same sensor
    • 一氧化碳气体传感器和测量装置使用相同的传感器
    • US06254749B1
    • 2001-07-03
    • US08994346
    • 1997-12-19
    • Minoru YokotaTakao MuraseJunichiro Mizusaki
    • Minoru YokotaTakao MuraseJunichiro Mizusaki
    • G01N27407
    • G01N27/4074
    • In a CO gas sensor composed of a CO gas sensing electrode 3 being made of Au or an Au alloy and a reference electrode 2 electrically connected to at least part of a surface of a solid electrolyte having an oxygen ion transfer property, which is superior in CO gas selectivity, in particular, reducing the affect of the co-existing oxygen to CO, and which works with a high precision at a high temperature, and in a CO gas measuring device using the gas sensor, the gas sensor being capable of determining a CO gas concentration by measuring a electromotive force change due to adsorption/oxidization of the carbon monoxide gas in the sensing electrode 3 when a constant current is caused to flow between the reference electrode 2 and the sensing electrode 3 or a current value caused by the oxidizing reaction of the carbon monoxide gas in the sensing electrode when a voltage is kept constant between the reference electrode 2 and the sensing electrode 3.
    • 在由Au或Au合金制的CO气体感测电极3和与具有氧离子转移性的固体电解质的表面的至少一部分电连接的参考电极2构成的CO气体传感器中,其优于 CO气体选择性,特别是降低共存氧对CO的影响,并且在高温下以高精度工作;以及在使用气体传感器的CO气体测量装置中,气体传感器能够确定 通过测量在参考电极2和感测电极3之间流过恒定电流时感测电极3中的一氧化碳气体的吸附/氧化引起的电动势变化的CO气体浓度或由 当参考电极2和感测电极3之间的电压保持恒定时,感测电极中一氧化碳气体的氧化反应。