Sensor and operating method for detecting soot

Details Sensor and operating method for detecting soot Sensor and operating method for detecting soot

2006-06-27

2011-10-11

Williams, Hezron E (Department: 2856)

Measuring and testing

Gas analysis

Solid content of gas

Reexamination Certificate

active

08033159

ABSTRACT:
The invention relates to a sensor and a method for detecting soot, said method comprising the following steps: a first operating temperature is set on the sensor for a measuring phase, such that soot can be deposited on the surface of the substrate, but depositions interfering with the measurement of the soot are prevented; the time between the beginning of the measurement and the increase in conductivity between the electrodes is recorded; and a second operating temperature is set on the sensor for a regeneration phase, such that the deposited soot is burned with the oxygen in the test gas. The inventive product is a soot sensor for using in the automobile industry.

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