With the rapid development of China's modern agriculture and industry, China's economic strength is also increasing day by day. Human beings consume a lot of natural resources while pursuing economic benefits. In addition, they also cause serious damage to the natural environment and aggravate the harshness of the human living environment. In recent years, various environmental pollutions in nature have become more serious, among which air pollution is one of the most typical representatives. Human beings have taken various measures to solve the problem of air pollution, among which the use of sensors to monitor the air environment is one of the most important measures.
With the continuous development of society, human activities in the natural environment are becoming more and more frequent. To obtain certain economic benefits, the use, consumption and waste of natural resources are becoming more and more serious. This phenomenon not only caused serious damage to natural resources, but also caused relatively serious pollution to the natural environment, which has a relatively serious impact on human health, quality of life and many other aspects. Comprehensive monitoring of the natural environment should be conducted. Sensor technology is a specific and miniaturized instrument, which has the advantages of good sensitivity, low cost, and good applicability. Therefore, its development potential is great, and human analysis and research on sensors are also very urgent.
Sensors are used to measure various parameters such as temperature, humidity, air pressure, and air quality. One of the most significant benefits of using sensors for atmospheric monitoring is that they provide real-time data. This allows scientists and researchers to quickly identify changes in the atmosphere and take appropriate action if necessary. For example, if a sensor detects an increase in air pollution levels, measures can be taken to reduce emissions from nearby factories or vehicles. Sensors are also useful for predicting weather patterns. By collecting data on temperature, humidity, and air pressure over time, scientists can create models that predict future weather conditions with greater accuracy.
1 Types and operating principles of sensors
1.1 Types of sensors
A sensor is an accessory that converts physical energy and chemical energy into electrical signals. According to its operating principle, it can be divided into two categories, namely, chemical sensors and physical sensors. Chemical sensors are mainly instruments for information transmission by converting chemical adsorption and chemical reactions into electrical signals. The physical sensor is the process of transforming the polarization, voltage effect, pyroelectric reaction, magnetostriction and magnetoelectric effect in the monitoring process into useful electrical signals to achieve the purpose of information transmission.
1.2 Operating principles of the sensor
The sensor system is usually composed of two subsystems, the molecular recognition system and the conversion system. The main function of the molecular recognition system is to identify the monitored object reasonably. Its main function is the process of converting chemical energy into physical energy. In addition, choosing a sensor with good quality also plays a crucial role. In the process of monitoring the identification object, the molecular recognition system first makes preliminary contact with the identification object, and then produces phenomena such as electrical changes, light changes, chemical changes, and thermal changes. These phenomena will be directly converted into corresponding electrical signals.
With the continuous development of society, human activities in the natural environment are becoming more and more frequent. To obtain certain economic benefits, the use, consumption and waste of natural resources are becoming more and more serious. This phenomenon not only caused serious damage to natural resources, but also caused relatively serious pollution to the natural environment, which has a relatively serious impact on human health, quality of life and many other aspects. Comprehensive monitoring of the natural environment should be conducted. Sensor technology is a specific and miniaturized instrument, which has the advantages of good sensitivity, low cost, and good applicability. Therefore, its development potential is great, and human analysis and research on sensors are also very urgent.
Sensors are used to measure various parameters such as temperature, humidity, air pressure, and air quality. One of the most significant benefits of using sensors for atmospheric monitoring is that they provide real-time data. This allows scientists and researchers to quickly identify changes in the atmosphere and take appropriate action if necessary. For example, if a sensor detects an increase in air pollution levels, measures can be taken to reduce emissions from nearby factories or vehicles. Sensors are also useful for predicting weather patterns. By collecting data on temperature, humidity, and air pressure over time, scientists can create models that predict future weather conditions with greater accuracy.
1 Types and operating principles of sensors
1.1 Types of sensors
A sensor is an accessory that converts physical energy and chemical energy into electrical signals. According to its operating principle, it can be divided into two categories, namely, chemical sensors and physical sensors. Chemical sensors are mainly instruments for information transmission by converting chemical adsorption and chemical reactions into electrical signals. The physical sensor is the process of transforming the polarization, voltage effect, pyroelectric reaction, magnetostriction and magnetoelectric effect in the monitoring process into useful electrical signals to achieve the purpose of information transmission.
1.2 Operating principles of the sensor
The sensor system is usually composed of two subsystems, the molecular recognition system and the conversion system. The main function of the molecular recognition system is to identify the monitored object reasonably. Its main function is the process of converting chemical energy into physical energy. In addition, choosing a sensor with good quality also plays a crucial role. In the process of monitoring the identification object, the molecular recognition system first makes preliminary contact with the identification object, and then produces phenomena such as electrical changes, light changes, chemical changes, and thermal changes. These phenomena will be directly converted into corresponding electrical signals.
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