Exhaust particulate matter sensor

Vehicle Exhaust Pollution

The pace of development of society is advancing, the quality of people's lives is improving, and the use of travel vehicles is steadily increasing. Automobile exhaust pollution is an important part of environmental pollution, automobile exhaust contains hundreds of compounds of different compositions, of which solid particulate matter, SO2, CO2, NO2 and other pollutants are the main pollutants. The large amount of exhaust gas production leads to haze weather, photochemical smog and other air pollution phenomena occur frequently, not only to reduce the visibility of urban air affecting people's travel, but also in a little bit of infringement of people's health, triggering a variety of diseases.

Application of Exhaust particulate matter sensor in automobiles

At present, the exhaust gas purification device - three-way catalytic converter is installed in the vehicle exhaust system, which is the most important off-board purification device, and it can transform the harmful gases such as CO, HC and NOx discharged from the exhaust of the vehicle into harmless carbon dioxide, water and nitrogen through oxidation and reduction. However, the particulate matter in the vehicle exhaust can not be completely purified, there will still be part of the particulate matter discharged, at this time a Particle Matter sensor is needed to monitor the exhaust. exhaust particulate matter sensor is a kind of laser sensor using the light transmission method, using the principle of light transmission to monitor the concentration of particulate matter in the vehicle exhaust. Exhaust particulate matter sensor is a laser sensor using light transmission method, which uses the light transmission principle to monitor the concentration of particulate matter in the exhaust gas of the car.

Exhaust particulate matter sensor advantages

Exhaust particulate matter sensor has the characteristics of large dynamic range, high measurement accuracy, stable value, etc. Based on optical sensing, it can quickly and accurately collect signals to realize real-time online monitoring of exhaust particulate matter. Lightning-proof, waterproof, anti-interference characteristics make it applicable to outdoor working environment and other harsh environments, equipped with self-designed fiber optic sensing, increasing the detection strength and high transmission efficiency.

Exhaust particulate matter sensor helps air pollution prevention and control

Exhaust particulate matter sensor main monitoring indicators are: particulate matter concentration, light absorption coefficient, opacity information. The application of this monitoring instrument is very necessary, through the strengthening of emission control of vehicles, the establishment of automobile exhaust particulate matter pollution prevention and control system, the realization of 24-hour continuous online monitoring, vehicle diagnostic system remote monitoring as a technical means to control the actual emissions of vehicles. We monitor and rectify the vehicles that do not meet the national standards, such as "smoky vehicles" and "high-emission vehicles". At the same time Exhaust particulate matter sensor data can be uploaded to the regulatory platform, connected with the relevant law enforcement agencies platform, found exceeding the standard vehicles immediately alarm, to assist law enforcement officers to monitor, to achieve "early detection and early rectification". At present, our country is in the key period of coordinated management of PM2.5 and ozone, strengthening the monitoring and management of pollutants, and promoting the emission reduction of exhaust particulate matter will be one of the contents of air pollution prevention and control in the coming period of time, and the application of Exhaust particulate matter sensor will be one of the contents of air pollution prevention and control in the future. "The application of Exhaust particulate matter sensor reduces the difficulties and resistance to a certain extent.