CN106644816A - Instrument and method for determining saturated soil moisture content - Google Patents
Instrument and method for determining saturated soil moisture content Download PDFInfo
- Publication number
- CN106644816A CN106644816A CN201710046660.7A CN201710046660A CN106644816A CN 106644816 A CN106644816 A CN 106644816A CN 201710046660 A CN201710046660 A CN 201710046660A CN 106644816 A CN106644816 A CN 106644816A
- Authority
- CN
- China
- Prior art keywords
- cutting ring
- wire mesh
- lid
- mesh cage
- instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
- G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an instrument and method for determining the saturated soil moisture content. The instrument comprises two bases, the bases are each vertically provided with a stand column, a cross beam is arranged between the stand columns and provided with a plurality of tension sensors, a nylon thread is connected to the position under each tension sensor, wire mesh cages are connected to the tension sensors through the nylon threads, ring knives are fixed in the wire mesh cages, containers are arranged outside the wire mesh cages, wires are connected to the tension sensors respectively, and an electronic control box is connected to the tension sensors through the wires. The method comprises the steps of measuring, soaking, calculating and the like. The instrument and method have the advantages that the time that the soil moisture content reaches a saturated state can be precisely determined, the water absorbing capacities of a soil sample at different times and the highest water absorbing capacity can be precisely determined without knowing the soil texture in advance, and the saturated soil moisture content can be precisely calculated.
Description
Technical field
The present invention relates to the fields of measurement of saturated soil water content, and in particular to a kind of instrument of measure saturated soil water content
Device and method.
Background technology
In forest hydrology observation, the research to saturated soil moisture content is one of highly important content.Existing side
Method, according to the soil texture, is soaked cutting ring is weighed after some hour mainly using the cutting ring infusion method of set time length,
Then saturated soil water content is calculated.The method needs the clear and definite soil texture in advance, then selection time length.For loam,
General immersion cutting ring 8-12 hours, the soil higher for clay content then needs to extend cutting ring soak time；Send out in research
It is existing, it is oversize to the soak time of cutting ring or too short, can all affect saturated soil water content measurement accuracy；Additionally, the soil water reaches
Time to saturation reflects the variable of the soil texture as one indirectly, is not taken seriously in forest hydrology research, does not also have at present
There is technique study soil moisture content to reach the time required for saturation.
The content of the invention
The technical problem to be solved is to provide a kind of instrument and method for determining saturated soil water content, should
Instrument and method efficiently solve the defect that traditional cutting ring infusion method is present, and have made some improvement places.
The technical problem to be solved employs the following technical solutions to realize：
A kind of instrument for determining saturated soil water content, including two bases, it is vertically-mounted respectively on the base to have vertical
Post, is provided with crossbeam between the column, the crossbeam is provided with several pulling force sensors, and the pulling force sensor lower section is connected with
Nylon wire, the pulling force sensor is connected with wire mesh cage by nylon wire, and the wire mesh cage is used for fixed cutting ring, and the cutting ring is used
In collection soil, container is placed with outside the wire mesh cage, for containing water；
The pulling force sensor is connected with wire, and the pulling force sensor is connected with electronic control box by wire.
Further improvement is that, the electronic control box includes battery and recording instrument without paper, the electronic control box also sets
There is switch.
Further improvement is that, the cutting ring is made up of cutting ring body and two cutting ring lids, and the two cutting rings lid is located at respectively
The top and bottom of cutting ring body, on the cutting ring lid some circular holes are provided with.
A kind of processing method of cutting ring as claimed in claim 3, processing assembly is cutting ring body, cutting ring top cover and cutting ring bottom
Lid, it is characterised in that：Drilled or punching processing on cutting ring top cover first, it is 1mm circular holes to form some apertures；Then
With adhesive waterproof tape cutting ring top cover, cutting ring bottom and cutting ring body junction winding two enclose, with guarantee cutting ring immersion process by
There is orifice ring knife lid position to soak.
A kind of method for determining saturated soil water content, comprises the following steps：
A, the length for adjusting nylon wire between wire mesh cage and pulling force sensor, making the cutting ring lid of cutting ring sword one end can just not have
In entering water；
B, opening electronic control box switch, pre-set the timing step-length of recording instrument without paper, and wire mesh cage is stood, and
Return-to-zero is carried out on recording instrument without paper；
C, cutting ring is placed in into wire mesh cage, it is ensured that upwards, wire mesh cage stands, so to retainer ring cutter position for cutting ring sword one end
Wire mesh cage is gently put in the container for filling water afterwards, and is suspended in water；
D, immersion the regular hour after, download recording instrument without paper in data, including：Cutting ring and gathered soil sample
Weight m0, the pull pressure sensor reading m that has just been placed in container of cutting ring and wire mesh cage1, different time points pull pressure sensor
Reading mx, and m when reaching full-scale reading in immersion processmax, and the time t corresponding to each reading0、t1、tx、tmax；
E, terminate after, remove on cutting ring wind adhesive waterproof tape, open cutting ring lid, cutting ring body and cutting ring lid are put in baking oven
Dry to constant weight in 105 DEG C, the adhesive waterproof tape removed is weighed m together with the cutting ring body (containing soil) and cutting ring lid of drying00, wash
Soil in net cutting ring body, and after drying, weigh m to cutting ring body (not containing soil) and cutting ring lid01
F, calculated according to formula, natural moisture content=(m0-m01)/(m00-m01) × 100%, saturation moisture content=
(mmax-m1+m0-m01)/(m00-m01) × 100%.
The invention has the beneficial effects as follows：
1) time that soil moisture content reaches saturation that reaches can be accurately determined, without the need for being known a priori by the soil texture, you can
Pedotheque is accurately determined in the water absorption of different time and maximum water absorption, and accurately calculates saturated soil moisture content；
2) may compare the change procedure of different soils sample moisture content during soak time；
3) according to recording instrument without paper number of channels, multigroup above-mentioned parameter can be measured simultaneously.
Description of the drawings
Fig. 1 is the structural representation of the instrument that the present invention is introduced；
Fig. 2 is the schematic diagram of each part after cutting ring decomposition；
Schematic diagram when Fig. 3 is assembled for cutting ring
Wherein, 1- bases, 2- columns, 3- crossbeams, 4- pulling force sensors, 5- nylon wires, 6- wire mesh cages, 7- cutting rings, 71- rings
Cutter hub, 72- cutting ring bottoms, 73- cutting ring top covers, 74- circular holes, 75- adhesive waterproof tapes, 8- containers, 9- wires, 10- electronic control box.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in figure 1, a kind of instrument for determining saturated soil water content, including two bases 1, base 1 is vertical respectively to pacify
Equipped with column 2, crossbeam 3 is provided between column 2, crossbeam 3 is provided with several pulling force sensors 4, and the lower section of pulling force sensor 4 is connected with
Nylon wire 5, pulling force sensor 4 is connected with wire mesh cage 6, wire mesh cage 6 by nylon wire 5 and is fixed with cutting ring 7, for collection simultaneously
Hold and be placed with container 8 outside soil, wire mesh cage 6, for containing water；
Pulling force sensor 4 is connected with wire 9, and pulling force sensor 4 is connected with electronic control box 10, electronics control by wire 9
Case processed includes battery and recording instrument without paper (not shown), and the electronic control box is additionally provided with switch (not shown).Such as
Shown in Fig. 2, cutting ring 7 is made up of cutting ring body 71 and two cutting ring lids 72, and the two cutting rings lid 72 is respectively positioned at the upper of cutting ring body 71
End and lower end, on the cutting ring lid 72 some circular holes 73 are provided with.
As shown in Figures 2 and 3, the processing assembly of above-mentioned cutting ring 7 is cutting ring body 71, cutting ring top cover 73 and cutting ring bottom
72, drilled or punching processing on cutting ring top cover 73 first, it is 1mm circular holes 74 to form some apertures；Then waterproof is used
Adhesive tape 75 is enclosed in cutting ring top cover 73, cutting ring bottom 72 and the junction of cutting ring body 71 winding two, equal in immersion process to guarantee cutting ring 7
Soaked by there is orifice ring knife lid position.
The instrument of said determination saturated soil water content adopts following steps in measurement, including：
A, the length for adjusting nylon wire 5 between wire mesh cage 6 and pulling force sensor 4, make the cutting ring lid of cutting ring sword one end just
Can submerge in water；
B, opening electronic control box 10 are switched, and pre-set the timing step-length of recording instrument without paper, and wire mesh cage 6 is quiet
Put, and return-to-zero is carried out on recording instrument without paper；
C, cutting ring 7 is placed in into wire mesh cage 6, it is ensured that upwards, wire mesh cage 6 is quiet to the fixed position of cutting ring 7 for cutting ring sword one end
Put, then wire mesh cage 6 is gently put in the container 8 for filling water, and be suspended in water；
D, immersion the regular hour after, download recording instrument without paper in data, including：Cutting ring 7 and gather soil
Weight m of sample0, the reading m of pull pressure sensor 4 that has just been placed in container 8 of cutting ring 7 and wire mesh cage 61, different time points pressure
The reading m of sensor 4x, and m when reaching full-scale reading in immersion processmax, and the time t corresponding to each reading0、t1、
tx、tmax；
E, terminate after, remove on cutting ring 7 wind adhesive waterproof tape, open cutting ring lid, cutting ring body and cutting ring lid are put into baking oven
In dry to constant weight in 105 DEG C, the adhesive waterproof tape removed is weighed m together with the cutting ring body (containing soil) and cutting ring lid of drying00,
Soil in clean cutting ring body, and after drying, weigh m to cutting ring body (not containing soil) and cutting ring lid01
F, calculated according to formula, natural moisture content=(m0-m01)/(m00-m01) × 100%, saturation moisture content=
(mmax-m1+m0-m01)/(m00-m01) × 100%.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not restricted to the described embodiments, the original for simply illustrating the present invention described in above-described embodiment and description
Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent circle.
It is fixed.
Claims (5)
1. it is a kind of determine saturated soil water content instrument, it is characterised in that：It is vertical respectively on the base including two bases
Column is installed, crossbeam is provided between the column, the crossbeam is provided with several pulling force sensors, the pulling force sensor
Lower section is connected with nylon wire, and the pulling force sensor is connected with wire mesh cage by nylon wire, and the wire mesh cage is used for fixed cutting ring, institute
Cutting ring is stated for gathering soil, container is placed with outside the wire mesh cage, for containing water；
The pulling force sensor is connected with wire, and the pulling force sensor is connected with electronic control box by wire.
2. it is according to claim 1 it is a kind of determine saturated soil water content instrument, it is characterised in that：The Electronic Control
Case includes battery and recording instrument without paper, and the electronic control box is additionally provided with switch.
3. it is according to claim 1 it is a kind of determine saturated soil water content instrument, it is characterised in that：The cutting ring is by ring
Cutter hub and two cutting ring lid compositions, the two cutting rings lid positioned at the top and bottom of cutting ring body, is provided with respectively on the cutting ring lid
Some circular holes.
4. a kind of processing method of cutting ring as claimed in claim 3, processing assembly is cutting ring body, cutting ring top cover and cutting ring bottom
Lid, it is characterised in that：Drilled or punching processing on cutting ring top cover first, it is 1mm circular holes to form some apertures；Then
With adhesive waterproof tape cutting ring top cover, cutting ring bottom and cutting ring body junction winding two enclose, with guarantee cutting ring immersion process by
There is orifice ring knife lid position to soak.
5. a kind of method for determining saturated soil water content, comprises the following steps：
A, the length for adjusting nylon wire between wire mesh cage and pulling force sensor, making the cutting ring lid of cutting ring sword one end can just submerge water
In；
B, opening electronic control box switch, pre-set the timing step-length of recording instrument without paper, and wire mesh cage is stood, and in nothing
Return-to-zero is carried out on paper monitor；
C, cutting ring is placed in into wire mesh cage, it is ensured that upwards, wire mesh cage stands to retainer ring cutter position, then will for cutting ring sword one end
Wire mesh cage is gently put in the container for filling water, and is suspended in water；
D, immersion the regular hour after, download recording instrument without paper in data, including：The weight of cutting ring and gathered soil sample
Amount m0, the pull pressure sensor reading m that has just been placed in container of cutting ring and wire mesh cage1, different time points pull pressure sensor reading
mx, and m when reaching full-scale reading in immersion processmax, and the time t corresponding to each reading0、t1、tx、tmax；
E, terminate after, remove on cutting ring wind adhesive waterproof tape, open cutting ring lid, by cutting ring body and cutting ring lid put in baking oven in
105 DEG C dry to constant weight, and the adhesive waterproof tape removed is weighed m together with the cutting ring body (containing soil) and cutting ring lid of drying00, clean
Soil in cutting ring body, and after drying, weigh m to cutting ring body (not containing soil) and cutting ring lid01
F, calculated according to formula, natural moisture content=(m0-m01)/(m00-m01) × 100%, saturation moisture content=(mmax-m1
+m0-m01)/(m00-m01) × 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046660.7A CN106644816B (en) | 2017-01-19 | 2017-01-19 | Instrument and method for measuring saturated water content of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046660.7A CN106644816B (en) | 2017-01-19 | 2017-01-19 | Instrument and method for measuring saturated water content of soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644816A true CN106644816A (en) | 2017-05-10 |
| CN106644816B CN106644816B (en) | 2023-04-14 |
Family
ID=58841842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710046660.7A Active CN106644816B (en) | 2017-01-19 | 2017-01-19 | Instrument and method for measuring saturated water content of soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644816B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643810A (en) * | 2019-09-30 | 2020-01-03 | 长春黄金研究院有限公司 | Method for measuring saturated water holding rate of ore in heap leaching process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61233350A (en) * | 1985-04-09 | 1986-10-17 | Norin Suisansyo Nogyo Kankyo Gijutsu Kenkyusho | Soil moisture measuring instrument |
| CN103399140A (en) * | 2013-08-09 | 2013-11-20 | 中国科学院武汉岩土力学研究所 | Rock and soil disintegration test device as well as using method |
| CN105510173A (en) * | 2015-12-24 | 2016-04-20 | 辽宁省水文局 | Method for measuring soil water content on site |
| CN105547779A (en) * | 2015-12-24 | 2016-05-04 | 辽宁省水文局 | Soil field water capacity soil sample manufacturing method and device and measuring method |
| CN205607822U (en) * | 2016-05-17 | 2016-09-28 | 三峡大学 | Soil saturated hydraulic conductivity's batch apparatus under survey different temperatures circumstances |
| CN106033046A (en) * | 2015-03-12 | 2016-10-19 | 西北农林科技大学 | A soil saturated hydraulic conductivity automatic measuring apparatus |
| CN206431004U (en) * | 2017-01-19 | 2017-08-22 | 南京林业大学 | A kind of instrument for determining saturated soil water content |
-
2017
- 2017-01-19 CN CN201710046660.7A patent/CN106644816B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61233350A (en) * | 1985-04-09 | 1986-10-17 | Norin Suisansyo Nogyo Kankyo Gijutsu Kenkyusho | Soil moisture measuring instrument |
| CN103399140A (en) * | 2013-08-09 | 2013-11-20 | 中国科学院武汉岩土力学研究所 | Rock and soil disintegration test device as well as using method |
| CN106033046A (en) * | 2015-03-12 | 2016-10-19 | 西北农林科技大学 | A soil saturated hydraulic conductivity automatic measuring apparatus |
| CN105510173A (en) * | 2015-12-24 | 2016-04-20 | 辽宁省水文局 | Method for measuring soil water content on site |
| CN105547779A (en) * | 2015-12-24 | 2016-05-04 | 辽宁省水文局 | Soil field water capacity soil sample manufacturing method and device and measuring method |
| CN205607822U (en) * | 2016-05-17 | 2016-09-28 | 三峡大学 | Soil saturated hydraulic conductivity's batch apparatus under survey different temperatures circumstances |
| CN206431004U (en) * | 2017-01-19 | 2017-08-22 | 南京林业大学 | A kind of instrument for determining saturated soil water content |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643810A (en) * | 2019-09-30 | 2020-01-03 | 长春黄金研究院有限公司 | Method for measuring saturated water holding rate of ore in heap leaching process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106644816B (en) | 2023-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Majone et al. | Wireless sensor network deployment for monitoring soil moisture dynamics at the field scale | |
| CN206431004U (en) | A kind of instrument for determining saturated soil water content | |
| CN102353701B (en) | Diagnostic method for insect attacks on crops by utilizing volatile matter | |
| CN105547779B (en) | Water-retaining quantity among field of soil soil sample production method, device and measurement method | |
| CN206330789U (en) | A kind of soil environment detection sampling detection integrated device | |
| Rowe | Soil moisture | |
| CN107066687A (en) | A kind of soil rainfall infiltration measurement system and method for considering air drag effect | |
| Sharma | Methods and techniques for soil moisture monitoring | |
| CN105158108A (en) | Method for calibrating capacitive soil moisture sensor on basis of undisturbed soil columns | |
| CN106644816A (en) | Instrument and method for determining saturated soil moisture content | |
| CN105181935A (en) | Soil carbon dioxide concentration monitoring device and method | |
| Silva et al. | Water extraction variability in the banana root zone affects the reliability of water balance | |
| CA2530719A1 (en) | Method for measuring the weight of a plant body | |
| CN110082499A (en) | A kind of soil body character test device and its test method | |
| CN106769214B (en) | Soil environment detects with integrative device of sampling test | |
| CN108243921A (en) | A kind of method for instructing cotton irrigation volume early warning | |
| CN204925114U (en) | Monitoring devices of soil carbon dioxide concentration | |
| CN205228918U (en) | Soil field capacity soil sample making devices | |
| CN110208135B (en) | Data acquisition and analysis system for ecological environment | |
| CN207689477U (en) | Water salt Migration Simulation device in a kind of soil body | |
| US9775300B2 (en) | Plant growth weight measurement instrument and method thereof | |
| CN216484472U (en) | Soil moisture sensor calibration device | |
| CN106840954B (en) | Calibration method for water content of fallen leaves | |
| Fares et al. | REAL‐TIME SOIL WATER MONITORING FOR OPTIMUM WATER MANAGEMENT1 | |
| Hatanaka et al. | Research on soil moisture measurement using moisture sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Xiaoping Inventor after: Zhang Jinchi Inventor after: Gao Chao Inventor before: Guo Xiaoping |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |