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An automatic indoor field water holding capacity measuring device and measuring method

A field water capacity, measuring device technology, applied in the measuring device, by removing a certain component weighing, material weighing and other directions, can solve time-consuming, labor-consuming and other problems, achieve accurate measurement results, reduce labor, and automate high degree of effect

Active Publication Date: 2021-09-07
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no automatic measuring device for the determination of indoor field water holding capacity. It needs to go through eight processes such as sampling, drying, grinding, compaction, infiltration, weighing of wet samples, drying, and weighing of dry samples, which is very time-consuming and labor-intensive.

Method used

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  • An automatic indoor field water holding capacity measuring device and measuring method
  • An automatic indoor field water holding capacity measuring device and measuring method
  • An automatic indoor field water holding capacity measuring device and measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] figure 2 It is the main flow chart of field water holding capacity measurement, in which soil sample weight measurement, soil infiltration, soil seepage flow, removal of accumulated fluid, drying of soil samples, and calculation of test results can be implemented in two specific modes: automatic mode and manual mode.

[0065] Such as figure 1 As shown, an automatic indoor field water holding capacity measuring device, the device includes a hot air fan 14, a hot air pipe 1, a box cover 4, a mesh pipe soil box 3, an exhaust valve 6, a water delivery pipe 8, a direct current water pump 9, and a water tank 10 , water tank support 12, main box body 11, main box body support column 17, soil box support column 16, sewage tank 18, central controller 19, weighing platform 20, sewage valve 21, temperature and humidity pressure sensor 5, water level switch 7 , locking knob 15, compacting mesh plate 2.

[0066] Specifically, the base of the present invention is a weighing platfo...

Embodiment 2

[0093] An automatic indoor field water holding capacity measurement method disclosed in Example 2 is a manual mode. The manual mode is usually used when the thickness of the soil sample is not stored in the central controller 19 . The four corners of the mesh pipe soil box 3 and each mesh pipe are all drawn with scales.

[0094] This automatic indoor field water holding capacity determination method comprises the following steps:

[0095] Step 1: Sampling: Take an appropriate amount of soil samples from the field, pack them in test bags, mark them, and record the GPS position signals in the field;

[0096] Step 2: Pretreatment of test equipment: fill the water tank 10 with water; clean the main box body 11, and wipe the main box body 11; clean the sewage tank 18, and wipe the sewage tank 18; clean the mesh pipe soil box 3, and wipe Net mesh pipe soil box 3;

[0097] Step 3: PID adjustment test of the pressure in the box: the specific implementation method is to open the cen...

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Abstract

The invention discloses an automatic indoor field water holding capacity measuring device and a measuring method. The measuring device mainly includes components such as a hot air blower, a mesh pipe soil box, a water tank, a sewage tank, a central controller, a temperature and humidity sensor, and the like. The measuring device can be used It is used for automatic or manual measurement of field water holding capacity. The measuring method uses the automatic indoor field water holding capacity measuring device disclosed by the present invention to automatically or manually measure the field water holding capacity, and all the processes can be realized in the same device without changing the device, saving time and effort.

Description

technical field [0001] The invention is an indoor field water holding capacity measuring device, in particular to an automatic indoor field water holding capacity measuring device. Background technique [0002] Field water holding capacity is a professional term in hydrology. It refers to the soil water content when the capillary water suspended in the soil reaches the maximum, and it is the maximum amount of water that the soil can hold without being affected by groundwater. The form of field water capacity includes: hygroscopic water + film water + suspended capillary water. When the water content reaches the field, if the water supply continues, the water holding capacity of the soil cannot be increased, but the lower soil can only be further moistened. Field water holding capacity has long been considered as the highest soil water content that the soil can maintain stably, and is also the highest soil water content that is effective for crops. It is considered a constan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
CPCG01N5/045
Inventor 严方冯祥刘晓宇吴刚山
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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