Introduction to the Measurement Principles of Solar Radiation Monitors

With the development of the light and heat industry, the demand for monitoring of solar radiation has also increased. Therefore, solar radiation monitors that measure the amount of solar radiation are very popular in the market. The solar radiation monitor can accurately measure the total radiation. After applying the solar radiation monitor, people can carry out multi-directional illumination and related research in areas such as agriculture, forestry, photovoltaic power generation systems, building material aging testing, and meteorological inspection stations. In order to increase the use of light energy and promote the improvement of agricultural quality and efficiency and the development of new energy and other important technical support.

The solar radiation monitor is mainly composed of a double-layer quartz glass cover, a sensing element, a shading plate, a watch body, and a desiccant. The main principle of the measurement is the thermoelectric effect principle. The total radiation table sensing element is the core part of the watch. The sensing element is a wire-plated, multi-contact thermopile that is coated with a high-absorption black coating. The hot junction is on the sensing surface, while the cold junction is located in the body. The hot and cold junctions generate a thermoelectric potential. In the linear range, the output signal is proportional to the solar irradiance, and the measurement of total solar radiation is completed.

The use of solar radiation monitors to measure total solar radiation is convenient, efficient, and simple. The instrument is not only compact and beautiful, it is portable, and it has outstanding effects in data processing. The large-screen dot-matrix liquid crystal display host can display the measurement data in real time, and can also store data and import it into the computer to facilitate subsequent analysis and processing. Therefore, the solar radiation monitor is the best monitoring instrument in the study of light radiation. However, in the process of using the solar radiation monitor, in order to maintain its good performance and prolong its service life, we should try our best to operate and maintain it in accordance with the specifications. Do not soak water, otherwise it will damage the instrument!

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