Method for measuring water content of soil by adopting time length measurement technology
A technology for measuring soil water content and technology, which is applied in the field of measuring soil water content by using time measurement technology, which can solve the problems of high cost, high price, and inability to buy chips, and achieve the effect of stable measurement results.
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[0029] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.
[0030] The idea of the present invention to solve the problem is: firstly, prepare the soil to be tested, and insert the double V-shaped soil probe into it; secondly, send a high-frequency electromagnetic wave to the soil probe, and thirdly, compare the phases of the electromagnetic waves at the sending end and the receiving end The difference can accurately calculate the transmission time of electromagnetic waves in the probe, and finally calculate the soil moisture content according to the fitting formula of the relationship between transmission time and soil water content. figure 1 is a circuit diagram of a method of measuring soil water content using the chronometry technique.
[0031] The device for measuring s...
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