How does a particulate matter sensor work

A particulate matter sensor is a device that can measure and monitor the concentration of particulate matter (such as carbon dioxide, nitrogen oxides, particulate matter, etc.) in the air. It is widely used in various air purification equipment, such as air purifiers, humidifiers, industrial ventilation systems, etc. . Particulate matter sensors can monitor the concentration of particulate matter in the environment in real time, helping people understand air quality conditions and take appropriate measures to protect their health. This article will introduce in detail How does a particulate matter sensor work, applications and how to choose.

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How does a particulate matter sensor work

At present, PM2.5 particulate matter sensors mainly include Laser Dust Sensor, electrochemical sensor, inductive sensor and ion sensor. Among them, Laser Dust Sensor is the most widely used type. It has the advantages of high sensitivity, fast response speed, and low cost. Electrochemical sensors also have higher sensitivity and response speed, but their cost is higher. Inductive sensors and ion sensors have relatively low sensitivity and response speed, but their cost is low.

 

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Applications of particulate matter sensors

Particle sensors are widely used in the following fields:

1.Air quality monitoring: Particulate matter sensors can be used to monitor the concentration of particulate matter in the environment in real time, helping people understand air quality conditions and take appropriate measures to protect health.

2.Industrial ventilation: Particle sensors can be used for particle monitoring in industrial environments, such as industrial production, building ventilation, etc.

3.Air purifier: The particle sensor can be used to control the particle output of the air purifier to adjust the purification effect.

4.Lung disease monitoring: Particle sensors can be used to monitor the concentration of particulate matter in the air to understand the development of lung diseases.

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How to choose and use a particulate matter sensor

1.Choose the appropriate particulate matter sensor: Choose the appropriate particulate matter sensor according to the use occasion and needs.

2.Install the particle sensor: When installing the particle sensor, you need to ensure that the distance between the sensor and the measured space is appropriate to avoid affecting the measurement results of the sensor.

3.Calibrate the particle sensor: Before using the particle sensor, the sensor needs to be calibrated to ensure that the sensor measurement results are accurate.

4.Maintain the particle sensor: Maintain and clean the particle sensor regularly to ensure the normal operation of the sensor.

The particulate matter sensor is a powerful tool for measuring air quality. It can help people monitor the concentration of particulate matter in the environment in real time and take appropriate measures to protect health. When selecting and using a particulate matter sensor, it is necessary to select the appropriate sensor according to the specific application scenario, and perform calibration and maintenance to ensure that the sensor measurement results are accurate.

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