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It is very important to select the dust sensor of air purifier

Update: 2019-11-13 17:09 Source: LUFTMY Reading: ↻ News
 

Nowadays, air purifier has become an indispensable electrical appliance in our life, but few people can grasp the right choice of air purifier. Sensor is a very important component of air purifier. Different brands use different sensors. Today we will discuss the topic of sensor of air purifier.

air cleaner
air cleaner

1.Origin of sensor technology

In the 1980s, the main function of the air purifier was to "remove the smell of smoke". Among the sensors, the air purifier is first equipped with an "odor sensor" also known as a VOC sensor or air quality sensor. The function of odor sensor is to detect the concentration of "odor" substances floating in the air. When the surface of the sensor made of metal oxide semiconductor adsorbs the odor molecule, the electrical conductivity will increase and the resistance will decrease. The sensor judges the concentration of odorant by detecting the change of resistance value.

Air purifiers purify air pollutants
Air purifiers purify air pollutants

A kind of air purifier which can directly display the value of PM2.5 appears in the market. It is understood that it uses high sensitive optical sensor, and the representative brand is LUFTMY.The general air purifier adopts the latest generation of high-precision laser dust sensor, which can display the PM2.5 concentration of the current indoor environment in real time, and the purifier has built-in microcomputer intelligent management chip, which can automatically adjust and purify the indoor air and adjust the wind speed according to the identification of the sensor, all of which benefit from the high-precision optical sensor.

2. Inaccurate dust sensor

At present, most of the top ten air purifiers in the market are dust sensors, which can sense the dust particles in the air, but can't accurately reflect the specific value, and can only roughly identify a range. The air quality will have three color indicators to display the air quality, which is the most common air purifier on the market. But with the update of air purifier purification technology, the application of sensors is more and more accurate. At present, the use of infrared dust sensor in air purifier is less and less, while the use of laser dust sensor is more and more.

3. Sensor is the core of air purifier

With the application of optical dust sensor in air purifier products, more and more air purifier brands will speed up the upgrading of sensors, and common sensors that can only fuzzy identify air quality will be eliminated. More and more purifier brands will realize the needs of users and update the sensors needed by their products,

PM2.5 dust sensor built into air purifier
PM2.5 dust sensor built into air purifier

In the research of products, we should grasp where the core technology of air purifier is. Only when we find the core essentials can we find a breakthrough point in upgrading products, can we combine with the development of the market, and the products can go further.

LUFTMY PM2.5 dust sensor

HPD05 Infrared PM2.5 dust sensor
HPD05 Infrared PM2.5 dust sensor

The particle concentration sensor HPD05 uses the principle of optical scattering to obtain the particle concentration, and measures the dust concentration within the detection range through the conversion of optical path and circuit. PM2.5 infrared sensor manufacturer lefmai particle concentration sensor hpd05 has the characteristics of small volume, high precision, low power consumption, short response time and stable operation under high dust concentration. This particle concentration sensor can be used in air purifier, lampblack machine, etc. Please consult online for more dust sensor prices.

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