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What is the principle and purpose of PM2.5 dust sensor?

Update: 2019-12-27 16:01 Source: LUFTMY

Sensor is a common one in our life, and the influence of sensor on our life is also very great. Especially now, the dust sensor is very practical. The dust sensor is a tool used to detect dust. It can sense tobacco and pollen in advance, and can detect very small dust. Moreover, there are many features of dust sensor, such as convenient installation and low price, so more and more consumers like dust sensor. Next, we will talk about the application principle and use of PM2.5 dust sensor.

GDS06 Infrared dust sensor
GDS06 Infrared dust sensor

LUFTMY GDS06 particle sensor is using optical scattering principle to detect the concentration of dust in the air, sensor with an infrared light-emitting diode and a high sensitivity photoelectric receiving sensors, infrared leds emit light reflected light can be created in case of dust, photoelectric sensor by measuring the intensity of the reflected light to measure the concentration of dust in the air, sensor output PWM signals directly, the concentration of the current numerical PWM width. The light scattering particle counter GDS06 has two advantages: stable detection capability and high production efficiency. Particle detection sensor GDS06 has the characteristics of small volume, high precision, low power consumption, short response time, etc. This air particle sensor can be applied in air purifier, PM2.5 detector, etc.

Installation drawing of infrared PM2.5 sensor GDS06
Installation drawing of infrared PM2.5 sensor GDS06

1. Application principle of PM2.5 dust sensor particle detector:

Dust sensor can sense the tobacco and pollen, house dust, 0.3 microns of tiny particles, such as its working principle is mainly under the irradiation of light particles and molecules will produce light scattering phenomenon, at the same time, also absorb part of the irradiation light energy, when a beam of parallel monochromatic light incident to the measured particle field, are influenced by the particle scattering and absorption, the light will be attenuation. In this way, the relative attenuation rate of incident light passing through the concentration field to be measured can be obtained. And the relative attenuation rate can basically reflect the desired concentration of dust in the field to be measured. The magnitude of light intensity is directly proportional to the strength of the electrical signal converted by photoelectric, and the relative attenuation rate can be obtained by measuring the electrical signal.

2. PM2.5 dust sensor particle detector parameters:

Measurement object: pm0.3 ~ pm10.0;

Measurement range: 0-500 μ g / m3;

Dust accuracy: ± 15%;

Output mode: PWM, UART;

The minimum recognition particle size is 0.3 μ M.

3. PM2.5 dust sensor particle detector application:

Smart home, air conditioning, air purifier, fresh air system, air quality detection equipment, PM2.5 detector, vehicle air purification, etc.

Typical application 1: air purifier (household, commercial, vehicle)

air cleaner
air cleaner

Monitor the particulate pollution in the environment;

Show the PM value to the user and intelligently control the air purification;

Save a lot of energy;

Convenient, easy to connect.

Typical application 2: PM2.5 detector (consumer, portable air quality detector)

PM2.5 detector
PM2.5 detector

Monitor the particulate pollution in the environment and show the PM value to the user;

Low power consumption, small size and low cost are required;

Accurate data, numerical display;

Convenient, easy to connect.

TAGparticle sensor air particle sensor particle detector detection particle sensor haze monitoring sensor