PARTICULAR MATTER SENSOR AND EXHAUST GAS PURIFICATION SYSTEM USING THE SAME

摘要

The present invention relates to a particulate matter sensor, which has a simple structure and is not required for the correction of the temperature, and to an exhaust gas purification system using the same. Accordingly, the sensor comprises: an insulation substrate; a first electrode unit equipped with a plurality of first electrodes, and formed by being exposed to one side of the insulation substrate; a second electrode unit equipped with a plurality of second electrodes, and formed inside the insulation substrate; and a heater unit formed on the other side of the insulation substrate for heating the first and second electrode units. The first electrodes and the second electrodes are alternately formed to face each other. In addition, the capacitance between the first electrode and the second electrode can be measured by a particulate matter accumulated between the first electrodes.