METHOD AND DEVICE FOR DETERMINING THE OPERATING STATUS OF A PROBE FOR MEASURING THE AMOUNT OF SOOT IN THE EXHAUST FUMES OF A VEHICLE

摘要

The invention relates to a device for measuring the deposition of soot, comprising a probe (3) for measuring the amount of soot deposited on a collection surface (2) of an elongate dielectric substrate comprising detection electrodes (6, 7) arranged adjacent to one another and intended for being connected to an electronic system suitable for assessing the amount of soot deposited on the collection surface. The device comprises for at least one detection electrode (6, 7), a measurement loop (Bi) including said detection electrode (6, 7) and connected to a system for detecting fluctuations of the electrical resistance of said measurement loop, in order to determine the operating status of said detection electrode.