Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Measurement device for drawing soil moisture characteristic curve and use method thereof

A technology for measuring device and soil moisture, applied in the field of scientific research instruments, can solve the problems of high price, cumbersome instruments, etc., and achieve the effects of low cost, easy operation, and simple assembly.

Inactive Publication Date: 2019-06-18
SHANXI AGRI UNIV
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used pressure template method and centrifuge method experimental equipment are often expensive and heavy.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Measurement device for drawing soil moisture characteristic curve and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, a measurement device for drawing soil moisture characteristic curve, including tensiometer, ring knife, detachable bracket, electronic balance 4. The tensiometer is composed of a probe 1-1, a negative pressure gauge 1-2, and a clay head 1-3. Described ring cutter comprises ring cutter 2-1 and its solid cover 2-2. The detachable bracket is composed of a fixed frame 3-1, a support rod 3-2 and a base 3-3. The negative pressure gauge 1-2 is fixed on the fixed frame 3-1, the clay head 1-3 is inserted into the saturated soil sample in the ring knife 2-1, and the lower end of the support rod 3-2 is fixed on the base 3 On -3, the upper end is fixed with the fixed frame 3-1. The base 3-3 and the ring knife 2 are placed on the electronic balance 4. The probe 1-1 is 40cm long, and the negative pressure gauge 1-2 has a range of 0--0.1Mpa (0--...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a measurement device for drawing a soil moisture characteristic curve. The device comprises a tensiometer, a ring cutter, a detachable support and an electronic balance. The tensiometer is formed by a probe tube, a negative pressure meter and a clay head. The ring cutter comprises a ring cutter body and a solid cover. The detachable support is formed by a fixation frame, asupport rod and a base. The negative pressure meter is fixedly arranged on the fixation frame. The clay head is inserted into a saturated soil sample in the ring cutter. The lower end of the support rod is fixedly arranged on the base, and the upper end thereof is fixedly provided with the fixation frame. The base and the ring cutter are arranged on the electronic balance. The use method of the measurement device comprises the following steps: 1) measuring basic data of the device; 2) assembling the measurement device; 3) recording experiment data; 4) calculating daily volume moisture content;and 5) drawing the soil moisture characteristic curve according to the daily soil volume moisture content omega1, omega2, omega3... and tensiometer values P1, P2, P3....

Description

technical field [0001] The invention belongs to the technical field of scientific research instruments, and in particular relates to a measuring device for drawing a soil moisture characteristic curve and an application method thereof. Background technique [0002] In the process of agricultural scientific research, the soil moisture characteristic curve is an important data in the research of soil moisture infiltration, soil erosion and solute migration process. Generally, the measured value can be obtained according to the change of soil moisture matric potential at different volume moisture contents, and the soil moisture characteristic curve can be drawn. The model fitting of the soil moisture characteristic curve is commonly used to analyze soil moisture. However, the application of the fitting model (such as the Van-Genuchten model) often requires the determination of parameters such as soil volumetric moisture content, soil matrix potential, and residual moisture con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N5/04
Inventor 薛建福杨文彪祁泽伟李莹张慧芋高志强孙敏
Owner SHANXI AGRI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com