PARTICULATE MATTER DETECTION DEVICE AND INSPECTION METHOD OF THE PARTICULATE MATTER DETECTION DEVICE

摘要

The particulate matter detection device of the present invention is a particulate matter detection device 100 comprising an electrode portion 21 and detection means 23 for detecting an electrical characteristic of the electrode portion 21, whereby a particulate matter 36 contained in an exhaust gas 32 is detected on the basis of a change of the electrical characteristic due to the particulate matter 36 attached to the electrode portion 21. The particulate matter detection device 100 further comprises removal means 25 and abnormality judgment means 26 for comparing an initial electrical characteristic in a use initial state of the device with the electrical characteristic measured in a state where the particulate matter 36 attached to the surface of the electrode portion 21 is removed by the removal means 25, to judge whether or not the particulate matter detection device 100 has an abnormality.