LIGHT-EXTINCTION TYPE DIESEL SMOKE METER

摘要

The present invention is to be related to the present invention that an improved light transmission type Diesel soot rice is made into using a diesel engine in Conventional cryogenic to improve the accurate soot concentration of defect due to moisture condensation,Such as when the exhaust for measuring automobile is not measuring sample in order to be inserted into exhaust pipe from the granule density of the exhaust gas of the exhaust pipe of diesel engine sampling pipe measurement discharge and have a probe,The connection of exhaust gas sampling line and meter,This beam passes through outlet,The fan in the antifouling light transmission type measuring instrument for being provided at the contamination control including exhaust gas feeder that air supply fan is used to provide a smooth prevention luminous component and light receiving portion is not installed on the both sides of meter air pollution control so as to air,It is mounted the antifouling straight lines of gongip,So as to when the exhaust gas of the discharge from venting conduit inlet condensing agent head temperature sensors is formed,Sampling pipe has a dew,Sampling pipe and meter and have a first heater be mounted,Straight line is antifouling and a second temperature sensor,It is used for the temperature from the antifouling measurement flow of outside air of air supply fan,Outside air inlet be formed in after-heater heating be heated to certain temperature and,On the basis of measured temperature from the first temperature sensor include second controller be used to control the temperature of the first after-heater with it is characterized in that,Exhaust gas can be measured by exhaust accurately of the invention.