Patent ID: 8278907

Claim:
A particulate matter detection device comprising: a detection device main body which has one end provided with at least one through hole and which is prolonged in one direction; at least a pair of electrodes embedded in a wall through which the through hole is formed, and covered with a dielectric material; wires extending from the pair of electrodes respectively to the other end of the detection device main body; and a strip-like ground electrode provided at a position sandwiched between the wires extending from the pair of electrodes respectively, the particulate matter detection device being configured to electrically adsorb, on the wall surface of the through hole, a charged particulate matter contained in a fluid flowing into the through hole, or a particulate matter which is charged by electric discharge caused in the through hole by applying a voltage across the pair of electrodes and which is contained in the fluid flowing into the through hole, and being configured to measure the changes of the electric properties of the wall through which the through hole is formed, thereby detecting the particulate matter adsorbed on the wall surface of the through hole.