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PM2.5 sensor application in intelligent air conditioning purification system

Update: 2019-11-26 16:13 Source: LUFTMY Reading: ↻ News
 

PM2.5 refers to the particulate matter whose diameter is less than or equal to 2.5 microns in the atmosphere. It is a kind of particulate matter that can enter the lung, and its diameter is less than 1 / 20 of human hair. In industrial production, it is easy to produce a large amount of PM2.5 dust, such as metallurgy, machinery, building materials, light industry, electric power and other industries.

Air pollutant
Air pollutant

PM2.5 fine particles are small in diameter, suspended in the atmosphere for a long time, and can spread and diffuse over a long distance, usually containing a large number of toxic and harmful substances, which has a great impact on human health.When PM2.5 exceeds the standard, the emergency and death rate of cardiovascular system will increase by 6% to 7% and the emergency department of hypertension will increase by 5% for every 10 μ g / m3 increase.When smog weather occurs frequently, PM2.5 air pollution and dust has become a problem that can not be ignored. With the increase of traffic congestion and car ownership, the degree of air pollution is also deepening.

Air purifier
Air purifier

In order to ensure the integrity of indoor air quality, air conditioning and purifier have become the first choice for most people to purify air.At present, the air conditioner is equipped with PM2.5 sensor, which has the function of filtering and dedusting, and can improve the indoor air quality to a greater extent.The working principle of PM2.5 dust sensor in air conditioning is the silver ion electrostatic precipitator.When the dust content in the air is too high, the silver ion electrostatic precipitator will start automatically, and the dust will be adsorbed on the dust collection plate and filter screen through the high-voltage electrostatic technology.

Air conditioner with purification function
Air conditioner with purification function

Now many PM2.5 dust sensors can simultaneously monitor PM2.5 and PM10 particles, and monitor the dust concentration in indoor and outdoor air in real time.After the PM2.5 dust sensor is added to the air conditioner, the air conditioner can update the indoor air according to the monitored dust data.In addition, the air intake of the fan can be controlled based on this, so as to achieve the requirements of energy saving and environmental protection.Therefore, adding PM2.5 dust sensor in the air conditioning system will become a new trend in the future and a new development direction in the air conditioning industry.

LD10 laser PM2.5 dust sensor
LD10 laser PM2.5 dust sensor

LD10 laser particle sensor is a high-precision particle concentration sensor based on laser Mie scattering theory. The laser gas sensor is a small module for detecting dust particles in the air. It has small volume, high detection accuracy, good repeatability, good consistency, continuous real-time response, strong anti-interference ability, super quiet fan, sensor factory 100 %The advantages of detection and calibration. High detection accuracy, short response time and miniaturization of products.The PM2.5 dust sensor can be embedded in various instruments or environmental improvement equipment related to the concentration of suspended particles in the air, such as air conditioner with purification function, air purifier, etc., to provide timely and accurate concentration data.

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