Particulate detector

A particulate detector that is used to detect a particulate in gas, the particulate detector comprising:

• a housing having a gas flow path through which the gas passes;
• an electric-charge generator that applies an electric charge generated by electric discharge to the particulate in the gas that is introduced into the gas flow path to obtain a charged particulate;
• a first collector that is disposed on the gas flow path downstream of the electric-charge generator in a direction of flow of the gas and that collects an excess electric charge that is not applied to the particulate;
• a second collector that is disposed on the gas flow path downstream of the first collector in the direction of the flow of the gas and that collects the charged particulate;
• and
• a detection unit that corrects a second physical quantity that varies in response to the charged particulate collected by the second collector on the basis of a first physical quantity that varies in response to the excess electric charge collected by the first collector and that detects an amount of the particulate on the basis of the corrected second physical quantity.