A soot sensor system comprising: a soot sensor comprising: a substrate defining a first surface and a second surface opposing said first surface ; a first sensor element and a second sensor element , respectively, formed on the first surface of the substrate , the first sensor element comprising a first continuous loop , and the second sensor element comprising a second continuous loop , respectively, of conductive material disposed on the substrate , said first continuous loop being arranged in a serpentine configuration comprising a first set of a plurality of undulations , said second continuous loop being arranged in a heater loop serpentine configuration comprising a second set of a plurality of undulations , and said first set of a plurality of undulations being complementary to and interweaving with the second set of a plurality of undulations ; wherein a sense current (I sense ) flowing in said first continuous loop of conductive material is representative of soot deposited on said soot sensor ; and wherein said second continuous loop of conductive material is configured to at least partially incinerate soot deposited on said soot sensor ; characterized by said first set of a plurality of undulations further defining a first subset of undulations forming first secondary undulations in the first set of a plurality of undulations , and said second set of a plurality of undulations further defining a second subset of undulations forming secondary undulations in the second set of a plurality of undulations , respectively; and said first secondary undulations and said second secondary undulations forming a plurality of gaps within and between each of them. a substrate defining a first surface and a second surface opposing said first surface ; a first sensor element and a second sensor element , respectively, formed on the first surface of the substrate , the first sensor element comprising a first continuous loop , and the second sensor element comprising a second continuous loop , respectively, of conductive material disposed on the substrate , said first continuous loop being arranged in a serpentine configuration comprising a first set of a plurality of undulations , said second continuous loop being arranged in a heater loop serpentine configuration comprising a second set of a plurality of undulations , and said first set of a plurality of undulations being complementary to and interweaving with the second set of a plurality of undulations ; wherein a sense current (I sense ) flowing in said first continuous loop of conductive material is representative of soot deposited on said soot sensor ; and wherein said second continuous loop of conductive material is configured to at least partially incinerate soot deposited on said soot sensor ; characterized by said first set of a plurality of undulations further defining a first subset of undulations forming first secondary undulations in the first set of a plurality of undulations , and said second set of a plurality of undulations further defining a second subset of undulations forming secondary undulations in the second set of a plurality of undulations , respectively; and said first secondary undulations and said second secondary undulations forming a plurality of gaps within and between each of them. <EOS>