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    • 10. 发明授权
    • Gas detection method and gas detection apparatus
    • 气体检测方法和气体检测装置
    • US07493795B2
    • 2009-02-24
    • US10586531
    • 2005-01-19
    • Hajime KomuraKazuo OnagaMariko SugimuraHiroshi KodaKazuyasu Iida
    • Hajime KomuraKazuo OnagaMariko SugimuraHiroshi KodaKazuyasu Iida
    • G01N30/64
    • G01N33/0011
    • The present invention provides a gas detection method and detection apparatus that provide better sensitivity and faster recovery after response than conventional gas detection methods and apparatus, by improving on these conventional methods and apparatus. The present invention is a gas detection method, in which the target gas is detected while oxygen is supplied to a sensor element 11a of a metal oxide-type gas sensor 11, wherein the target gas is detected while water vapor is supplied to the sensor element 11a, and is also a gas detection apparatus equipped with an oxygen supply means 14 for supplying oxygen to a sensor element 11a of a metal oxide-type gas sensor 11, said gas detection apparatus being provided with a water vapor supply means 15 for supplying water vapor to the sensor element 11a.
    • 本发明提供了一种气体检测方法和检测装置,通过改进这些常规方法和装置,提供比常规气体检测方法和装置更好的灵敏度和更快的响应恢复。 本发明是一种气体检测方法,其中在将氧气供应到金属氧化物型气体传感器11的传感器元件11a的同时检测目标气体,其中在向传感器元件供应水蒸气的同时检测目标气体 11a,也是配备有用于向金属氧化物型气体传感器11的传感器元件11a供给氧的供氧装置14的气体检测装置,所述气体检测装置设置有用于供给水的水蒸气供给装置15 蒸气传递到传感器元件11a。