FIELD: measuring equipment.
SUBSTANCE: various methods are proposed of diagnosing exhaust fluid, located in the channel of the exhaust fluid. The expected change of the sensor output signal can be controlled to identify, whether the sensor generates enough accurate indications, by controlling the sensor during the conditions, when it is in contact with the exhaust fluid, and when it is not in contact with the exhaust fluid.
EFFECT: reducing the test duration, increasing the evaluation reliability of the technical condition for the controlled sensors.
21 the dwg 6 cl
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