Heated titania oxygen sensor

Details Heated titania oxygen sensor Heated titania oxygen sensor

G - Physics

01

N

324/25

G01N 27/12 (2006.01) F02D 41/14 (2006.01)

Patent

CA 1223040

ABSTRACT OF THE DISCLOSURE A heated resistive type sensor (20) for detecting the oxygen content in an exhaust gas is connected to an electronic control unit (22) for regulating the air/fuel ratio used to operate an internal combustion engine (10). The sensor (20) has a heater (70) which provides a constant thermal energy level to a titanic sensing element (76) whose resistance to the flow of electrical current is directly related to the percentage of oxygen in the exhaust gas. The electrical resistance is used as a control signal to maintain the air/fuel ratio within set limits.

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