公开(公告)号：WO1998000704A1

公开(公告)日：1998-01-08

申请号：PCT/US1997007553

申请日：1997-05-05

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  OH, Seajin ,  JOSEPH, Jose ,  DUONG, Dao ,  ADAMS, Neils, J. ,  PLEE, Steven, L.

IPC: G01N25/00

CPC classification number: G01N27/16

Abstract: A modified noble metal catalyst based calorimetric sensor for sensing non-methane hydrocarbons in an automotive exhaust gas stream includes a first sensing element (105) with an output that provides a signal (111) indicative of a concentration of non-methane hydrocarbons, hydrogen (H2), and carbon monoxide (CO). A compensating sensing element (107) has an output that provides a compensating signal (113) indicative of a concentration of hydrogen (H2) and carbon monoxide (CO). A circuit for combining the signal and the compensating signal provides a combined signal indicative of a measure of non-methane hydrocarbons in the automotive exhaust gas stream.

Abstract translation: 用于检测汽车废气流中的非甲烷烃的改性的贵金属催化剂基量热传感器包括具有输出的第一感测元件（105），所述输出提供指示非甲烷烃浓度的信号（111），氢（ H2）和一氧化碳（CO）。 补偿感测元件（107）具有提供指示氢（H2）和一氧化碳（CO）的浓度的补偿信号（113）的输出。 用于组合信号和补偿信号的电路提供指示汽车废气流中非甲烷烃的量度的组合信号。