SE-GRM048

SE-GRM048 is an environmental sensor designed for measuring temperature and relative humidity. It has been widely used in the fields of atmospheric monitoring and agricultural production. This article will focus on the application field and working principle of SE-GRM048.

Application Field

SE-GRM048 is mainly used in agricultural and environmental monitoring. In the field of agriculture, it can provide accurate environmental information, which is beneficial to the control of agricultural production. In the field of environmental monitoring, its accurate environmental data can play an important role in monitoring atmospheric environmental changes. Its superior performance has won itself a place in the industry.

Working Principle

SE-GRM048 uses a semiconductor temperature humidity sensor to detect the environmental temperature and relative humidity. The humidity sensor has a small size, good linearity, high sensitivity, good repeatability and high reliability. The core part of the sensor is a humidity sensitive capacitor, which is composed of a polycrystalline silicon film dielectric material and two electrodes. The structure of the capacitor is like a capacitor, but the capacitance of the capacitor with the humidity increases or decreases with the humidity, and becomes the basis of the detection of humidity.

The detection of temperature is based on a thermistor. The thermistor is composed of electron materials and metal materials. The temperature sensitive element is composed of electron materials. When the temperature changes, due to the difference between the thermal expansion coefficients of electron materials and metal materials, the resistance of the thermistor changes. SE-GRM048 collects the output signal of the temperature and humidity sensor, and uses the dedicated processing chip GY21 to convert the data into a digital signal output.

Conclusion

SE-GRM048 is an environmental sensor that has been widely used in the fields of atmospheric monitoring and agricultural production. The application field is mainly agricultural and environmental monitoring, and the working principle is based on semiconductor temperature humidity sensors and thermistors. The accurate environmental data it provides can play an important role in monitoring atmospheric environmental changes.