Automatic measurement system and method of soil lateral seepage
An automatic measurement, soil side technology, applied in the direction of measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problems of measurement time lag, low measurement accuracy, and increase calculation errors, etc., to achieve widespread promotion and application value, save manpower and material resources, and facilitate the effect of movement
Inactive Publication Date: 2012-12-12
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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[0004] Although the water balance method is simple and intuitive, its measurement accuracy is relatively low. Its defect is that the measurement needs to be estimated according to some other parameters, so the lateral seepage data cannot be obtained directly, and the calculation error is increased, and it cannot be real-time due to the lag of the measurement time limit Obtain dynamic data of lateral seepage
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[0045]The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. It should be understood that the following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.
[0046] like figure 1 Shown is the structure of the automatic measurement system embodiment of soil lateral seepage of the present invention, including lateral seepage measurement device, data acquisition and processing device and solar power supply device, wherein:
[0047] The structure of the embodiment of the lateral seepage measuring device is as Figure 2a As shown, it includes a leachate storage pipe and its plug, a water level sensor, and a leachate collection pipe connected to the leachate storage pipe through a three-way connection; The collecting pipe obtains soil side seepage water, connects it into the leachate storage pipe ...
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Abstract
The invention discloses an automatic measurement system and method of soil lateral seepage. The system comprises a lateral seepage measurement device, a data acquisition and processing device and a solar power supply device, wherein the lateral seepage measurement device is connected with a percolate collecting pipe connected with a percolate storage pipe through a three-way pipe, the soil lateral seepage which is acquired by the percolate collecting pipe which is buried in different soil depth on the single side of soil flows into the percolate storage pipe through the three-way pipe, a water level sensor is used for outputting a water level measured value of percolate in the percolate storage pipe, which is measured in a real-time manner, to the data acquisition and processing device; the data acquisition and processing device is used for calculating the lateral seepage according to an input function relation between the water level measured value and water level and flow rate in the real-time manner and recording the lateral seepage which is calculated in the real-time manner; and the solar power supply is used for converting solar energy to electric energy and providing a working power supply for the lateral seepage measurement device and the data acquisition and processing device. According to the system and the method, disclosed by the invention, the lateral seepage measurement result can be obtained in a real-time, fast and accurate manner, and manpower and physical resources can be greatly saved.
Description
technical field [0001] The invention relates to an evaluation technology of soil lateral seepage performance in agricultural water and soil engineering, in particular to an automatic measurement system and method for soil seepage. Background technique [0002] The measurement of farmland soil seepage or lateral seepage is an important link in the farmland water cycle system. It involves the monitoring of soil moisture distribution after irrigation or rainfall, and the migration of pollutants such as chemical fertilizers and pesticides with water. Studying this measurement process is of great significance for reducing farmland drainage and pollutant discharge, increasing soil infiltration and nutrient interception, and preventing and controlling farmland pollution. [0003] The existing water balance method belongs to a method of indirect calculation of river seepage. The specific implementation includes: blocking the canal around the test field to close both ends of the cana...
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IPC IPC(8): G01N15/08G01F23/58
Inventor 张晴雯赵军杨正礼张爱平易军
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI