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    • 14. 发明公开
    • MULTIPLE GAS DETECTION DEVICE
    • MEHRGASDETEKTIONSVORRICHTUNG
    • EP3163297A1
    • 2017-05-03
    • EP16188686
    • 2016-09-14
    • TOYOTA MOTOR CO LTD
    • AOKI KEIICHIROIDE KOJISERIZAWA YOSHIHISA
    • G01N27/417G01N27/407G01N27/419G01N33/00
    • G01N27/4074G01N27/4067G01N27/4071G01N27/417G01N27/419G01N33/0037G01N33/0054Y02A50/245Y02A50/246
    • The multiple gas detection device 1 comprises: a first cell part provided with a first electrochemical cell 51; a second cell part provided with a second electrochemical cell 52; a third cell part provided with a third electrochemical cell 53; an inlet diffusion controller 15 controlling diffusion of measured gas; and a measured gas chamber 30 into which the measured gas flows through the inlet diffusion controller 15. The first cell part is configured to selectively detect a concentration of NO x or ammonia contained in measured gas in the measured gas chamber 30. The second cell part is configured to discharge oxygen contained in measured gas in the measured gas chamber 30 and convert NO 2 and ammonia contained in measured gas in the measured gas chamber 30 to NO. The third cell part is configured to detect a concentration of NO contained in measured gas in the measured gas chamber 30.
    • 多气体检测装置1包括:设置有第一电化学电池51的第一电池部分; 设有第二电化学电池52的第二电池部分; 设有第三电化学电池53的第三电池部件; 控制测量气体扩散的入口扩散控制器15; 以及被测气体流过入口扩散控制器15的测量气体腔30.该第一单元部分被配置成选择性地检测被测气体腔30中的被测气体中所含的NO x或氨的浓度。第二单元部分 被配置为排出测量气体腔室30中的测量气体中包含的氧,并且将测量气体腔室30中的测量气体中包含的NO 2和氨转换成NO。 第三单元部分构造成检测被测气体腔室30中的被测气体中包含的NO的浓度。