NOx sensor
申请(专利)号： US20010884340
专利号： US6773565B2 主分类号： G01N274/07 申请权利人： KABUSHIKI
KAISHA RIKEN 公开国代码： US 优先权国家： JP
摘 要：
The present invention discloses a NOx sensor for accurately detecting the total concentration of nitrogen oxides in a measured gas without being affected by interference gases. The sensor comprises a gas treatment chamber 5
arranged at the prior stage of the gas detection chamber 3, an inorganic porous member 25 loaded in the gas treatment
chamber, and a NOx conversion pumping cell 14, 15 and/or an oxygen supplying pumping cell which supplies oxygen into the gas treatment chamber. When the measured gas is introduced in the gas treatment chamber, the interference gases contained in the
measured gas are effectively oxidized by the supplied oxygen under the assistance of the catalytic activity of inorganic porous member. The total amount of the nitrogen oxides is measured in the gas detection chamber while NOx in the measured gas are converted into a single component
申请日： 2001-06-20 公开公告日： 2004-08-10
分类号： G01N274/07 发明设计人： MASAHARU HASEI;
AKIRA KUNIMOTO; TAKASHI ONO 申请国代码： US
优先权： 20000622 JP
2000/187185; 20010219 JP 2001/041934
摘 要 附 图：
(NO2 or NO) by the NOx conversion pumping cell after the interference gases are oxidized. 主权项：
1. A NOx sensor comprising:/na gas detection chamber composed of an internal space formed by a first
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NOx sensor
