Patent ID: 9395273
Filing Date: 2016-07-19
CPC Classification: G01M,G01N

Claim Text:
1. A particulate detection system for detecting the quantity of particulates contained in a gas under measurement flowing through a gas flow pipe, comprising: a detection section attached to the gas flow pipe and coming into contact with the gas under measurement; a compressed air source which includes a compressor for producing compressed air and which supplies the compressed air to the detection section; a compressor drive circuit which drives the compressor; and control means for controlling the compressor drive circuit, wherein the detection section has a space forming member which forms an internal space into which the gas under measurement is introduced, and a gas jetting source which is located adjacent to the internal space and which jets the compressed air supplied from the compressed air source toward the internal space through a jetting hole formed in the gas jetting source; of drive conditions under which the compressor is driven by the compressor drive circuit, a drive condition for jetting air from the jetting hole at a first flow rate is defined as a first drive condition, and a drive condition for jetting the air from the jetting hole at a second flow rate smaller than the first flow rate is defined as a second drive condition; and the control means comprises first instruction means for instructing the compressor drive circuit to drive the compressor under the first drive condition when the quantity of the particulates is detected, and second instruction means for instructing the compressor drive circuit to drive the compressor under the second drive condition when the quantity of the particulates is not detected.