Patent ID: 9581069
Date: 2017-02-28
CPC Classifications: F01N,G01M,G01N,G01R

Claim:
1. A particulate detection system for detecting an amount of particulates in a gas under measurement flowing through a gas flow pipe, comprising: a detection section which is mounted to a mounting opening of the gas flow pipe; a drive circuit which drives the detection section; and a drive control section which controls the drive circuit, wherein the detection section includes a first potential member which is maintained at a first potential when the detection section is driven by the drive circuit, a second potential member which is maintained at a second potential different from the first potential when the detection section is driven by the drive circuit, and an insulating member which is disposed between the first potential member and the second potential member so as to electrically insulate them from each other; the system further comprises insulation test means for testing the degree of insulation between the first potential member and the second potential member; and the drive control section includes drive permission/prohibition determination means for determining, on the basis of the degree of insulation tested by the insulation test means, whether to permit the drive of the detection section by the drive circuit.