发明名称 TRANSITION METAL OXIDE BASED CALORIMETRIC NON-METHANE HYDROCARBON SENSOR AND METHOD
摘要 A transition metal oxide based calorimetric non-methane hydrocarbon sensor (100) is constructed by disposing a transition metal based catalyst (105), preferably chromium oxide (Cr2O3), onto a carrier (101). A temperature measurement device (103) is positioned thermally coupled to the transition metal based catalyst (105). A preferred application includes sensing non-methane heavy hydrocarbons in an automotive exhaust gas stream (803) by exposing a transition metal oxide catalyst based sensor (805) to the exhaust gas stream (803) and providing a signal (811) indicative of a concentration of non-methane heavy hydrocarbons and carbon monoxide (CO). Then, exposing a compensating sensor (807) to the same exhaust gas stream (803) and providing a compensating signal (813) indicative of a concentration of carbon monoxide (CO). By combining the signal (811) and the compensating signal (813), a measure of non-methane heavy hydrocarbons can be provided.
申请公布号 EP0829005(A1) 申请公布日期 1998.03.18
申请号 EP19970903768 申请日期 1997.01.15
申请人 MOTOROLA, INC. 发明人 OH, SEAJIN;JOSEPH, JOSE
分类号 G01N25/22;G01N33/00;(IPC1-7):G01N7/00;G01N25/20;G01N25/18;G01N27/416;G01N27/16;G01N27/00;G01N21/00;G01N33/22;G01N31/12;G01N31/00 主分类号 G01N25/22
代理机构 代理人
主权项
地址