Soil moisture real-time monitoring system is one of the methods to quickly determine the soil moisture content. It is relatively free from the influence of soil type and does not damage the soil. It is suitable for repeated measurement on the surface and on the profile, with high resolution and accuracy. It can measure moisture at a certain point in the soil, and it can also continuously multi-channel sensors to measure the multi-point soil moisture content. In addition, real-time soil moisture monitoring systems do not radiate and do not cause harm to humans.
Every soil moisture monitoring system must be calibrated according to the local soil characteristics before application. 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 real-time soil moisture monitoring systems are required, and sites are constantly exchanged to obtain stable correlations before they can be used in public opinion monitoring.
Because hydrogen atoms present in the soil in an indefinite form slow down the fast neutrons much more 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.
The real-time soil moisture monitoring system is not only suitable for field large-scale continuous monitoring of field moisture, but also meets the needs of indoor soil moisture testing. It is a promising soil moisture measuring device. 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, crystal water). After the aluminum tube is buried well, it can be used for a long time, and the real-time monitoring system for soil moisture content can measure quickly.
Every soil moisture monitoring system must be calibrated according to the local soil characteristics before application. 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 real-time soil moisture monitoring systems are required, and sites are constantly exchanged to obtain stable correlations before they can be used in public opinion monitoring.
Because hydrogen atoms present in the soil in an indefinite form slow down the fast neutrons much more 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.
The real-time soil moisture monitoring system is not only suitable for field large-scale continuous monitoring of field moisture, but also meets the needs of indoor soil moisture testing. It is a promising soil moisture measuring device. 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, crystal water). After the aluminum tube is buried well, it can be used for a long time, and the real-time monitoring system for soil moisture content can measure quickly.
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