Soil moisture real-time monitoring system advantages introduction
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1. Soil moisture real-time monitoring system is one of the methods to quickly determine the soil moisture content. It is relatively unaffected by the soil type and does not damage the soil. It is suitable for repeated and continuous measurement on the surface and on the profile, with high resolution and accuracy. it is good.
2. It can measure moisture at a certain point in the soil, and it can also continuously multi-channel sensors to measure multi-point soil moisture content. In addition, the soil moisture monitoring system has no radiation and will not cause any harm to the human body.
3. Before each soil moisture sensor is used in a soil moisture monitoring system, it must be calibrated according to the characteristics of the local soil. Calibration is performed using the cubic equation conversion method. Within the range of 0 to 60% (m3/m3), the soil moisture conversion results can be obtained by setting the following cubic polynomial constants. In many areas, multiple tests of sensors related to soil moisture monitoring systems are required, and sites are constantly exchanged in order to obtain stable correlations before they can be used in public opinion monitoring.
4. Because of the inexistence of hydrogen atoms in the soil, the slowing effect of fast neutrons is much greater than other heavy atoms. Therefore, it can be considered that the effective intensity of slow neutrons has a close relationship with the moisture content in the soil. The contents of various components of soil vary widely, and the density and porosity are not the same. The real-time monitoring system for soil moisture content requires a uniform and uniform soil sample and good results are obtained.
5. The real-time monitoring system of soil moisture content is not only suitable for field large-scale continuous monitoring of field moisture, but also meets the needs of indoor soil moisture measurement. It is a promising soil moisture measurement equipment. Sensitive to moisture response, the average water content can be measured as a function of depth, with a wide range of measurements. This method does not require sampling, does not disturb the soil, and is not affected by the physical state of water (such as freezing and crystal water). After the aluminum tube is buried well, it can be used for a long period of time. The soil moisture monitoring system can measure quickly.
It is precisely because of the unique advantages of real-time soil moisture monitoring system that the system is widely used in agriculture, meteorology, industrial production and other fields.