Patent ID: 8366813

Claim:
A particulate matter detection device comprising: a first electrode that extends in one direction and includes a conductive section and a dielectric that covers the conductive section; and a second electrode that extends in one direction and is formed of a metal or an alloy, wherein the first electrode and the second electrode being disposed opposite to each other at an interval of 0.3 to 3.0 mm, the particulate matter detection device being configured so that charged particulate matter contained in a fluid that passes through the space between the first electrode and the second electrode, or particulate matter contained in a fluid that passes through the space between the first electrode and the second electrode and is charged by a discharge that occurs due to application of a voltage between the first electrode and the second electrode can be electrically adsorbed on at least one of the first electrode and the second electrode, and the particulate matter adsorbed on the first electrode and the second electrode can be detected by measuring a change in electrical properties of the first electrode, or a change in electrical properties of the first electrode and the second electrode.