发明名称 |
Sensor and sensing method |
摘要 |
A sensor includes an oxygen pump cell; an oxygen pump chamber; an emf cell; a reference chamber providing a fluid connection to the reference gas; gas channels in fluid communication with the pump and emf electrodes, the reference gas comprising reformate produced by a fuel reformer fueled by an air-fuel gas mixture having an air-fuel ratio; a reformer electronic control module; a sensor electronic control module; a heater; a temperature sensor disposed in communication with the heater and the sensor control module for maintaining the sensor at a desired operating temperature; a closed loop controlled operation amplifier in electrical communication with the sensor, whereby the oxygen pump cell provides sufficient oxygen ions to oxidize an incoming diffusion-limiting fuel flux to the emf cell and maintain a constant emf at the emf cell, and wherein a current value represents an equivalent to the air-fuel ratio of the air-fuel gas mixture. |
申请公布号 |
US8658013(B2) |
申请公布日期 |
2014.02.25 |
申请号 |
US20050292179 |
申请日期 |
2005.12.01 |
申请人 |
WANG DA YU;SYMONS WALTER THOMAS;FARHAT ROBERT JEROME;KIRWAN JOHN E.;KUPE JOACHIM;MOWERY KENNETH D.;DELPHI TECHNOLOGIES, INC. |
发明人 |
WANG DA YU;SYMONS WALTER THOMAS;FARHAT ROBERT JEROME;KIRWAN JOHN E.;KUPE JOACHIM;MOWERY KENNETH D. |
分类号 |
G01N27/409;G01N27/41 |
主分类号 |
G01N27/409 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|