Patent ID: 9476807
Filing Date: 2016-10-25
CPC Classification: F01N,G01M,G01N

Claim Text:
1. A particulate sensor attached to a pipe having electrical conductivity, and adapted to detect the amount of particulates in gas flowing through the pipe, comprising a sensor unit, wherein the sensor unit comprises the sensor unit can detect the amount of the particulates in the gas on the basis of electric potential of the sensor ground section; and the sensor ground section is covered with insulating ceramic at an outer portion of the sensor unit which comes into contact with the gas, wherein the ion generation section comprises a first electrode having a second floating potential different from the first floating potential, and a second electrode connected to the sensor ground section and having the first floating potential; the ion generation section generates the ions by producing discharge between the first electrode and the second electrode; the sensor unit further comprises a discharge potential portion connected to the first electrode and having the second floating potential; and the sensor ground section surrounds the first electrode and the discharge potential portion.