DEVICE FOR DETECTING RADIAL CRACKS IN A PARTICLE FILTER

摘要

The invention relates to a device for detecting radial cracks on a honeycomb type particle filter, the filtering portion of which is constituted by a porous inorganic material, said particle filter comprising a single monolithic element or being obtained by the combination of a plurality of monolithic elements, the device being characterized in that it comprises an electrically conductive material arranged in the form of a strip or a wire on at least a longitudinal part of the filter, integral of a monolithic element and / or coating cement or joint cement, and having an electrical conductivity greater than that of the material constituting the part of the filter which it is integral and a resistance to stress less than or equal to that of the material constituting the part of the filter which it is secured, as well as means for measuring the conductivity or the electrical resistance of the strip or wire of electrically conductive material.