CN206399875U - The easy device of field measurement water content of soil - Google Patents
The easy device of field measurement water content of soil Download PDFInfo
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- CN206399875U CN206399875U CN201720065414.1U CN201720065414U CN206399875U CN 206399875 U CN206399875 U CN 206399875U CN 201720065414 U CN201720065414 U CN 201720065414U CN 206399875 U CN206399875 U CN 206399875U
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- heat
- inner cylinder
- water content
- measurement
- soil
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Abstract
The utility model provides a kind of easy device of field measurement water content of soil, including heat-insulated outer barrel；Provided with measurement inner cylinder in heat-insulated outer barrel, agitator is provided with measurement inner cylinder, measurement inner cylinder bottom surface is provided with medial wall of the tube in heater, temperature sensor and pressure sensor, measurement and is provided with graduated scale；It is used to contain the soil body to be measured and test water in measurement inner cylinder；The problems such as the utility model solves complex operation when field condition measures water content, costly, the time is long.
Description
Technical field
The utility model is related to water content of soil determination techniques field, in particular to a kind of field measurement water content of soil
Easy device.
Background technology
Water content is the important parameter of the soil body, affects the physical property of the soil body.Accurately and timely determining water content of soil has
Beneficial to studying and understanding soil structures dynamic rule and space multistory distribution, this suffers from important in theoretical and production
Meaning.Soil body moisture measurement is related to many fields, and it is field irrigation management, the research of Regional Hydrologic condition and basin water balance
The Important Parameters of calculating.In engineering construction and secure context, water content is also important Con trolling index.
The measuring method of soil moisture content is a lot, and conventional has oven drying method, electric-resistivity method, TDR methods, FDR methods.Other method is also
Have：Neutron Scattering Method, ray method etc..Wherein oven drying method is the most universal, and its method is to take small sample to pass through in-house operation with cutting ring
Obtain water content.Process is cumbersome, time-consuming longer, costly, and is unfavorable for operating in the wild.But it is existing in engineering construction
, it is desirable to the quick water content for determining the soil body is, it is necessary to which fast and convenient equipment determines the water content of live large sample.So native
The research of body determination of moisture method be mainly reflected in it is how quick, accurate, economically determine water content of soil in terms of.This for and
When verify soil water regime, to make the decision-making of science in good time or to take rational measure etc. significant.
The content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, a kind of easy device of field measurement water content of soil, solution
Certainly complex operation during field condition measurement water content, the problems such as costly, the time is long.
The utility model is in order to solve the above technical problems, the technical scheme used is：A kind of field measurement soil body is aqueous
The easy device of amount, including heat-insulated outer barrel；
Provided with measurement inner cylinder in the heat-insulated outer barrel, agitator, the measurement inner cylinder bottom are provided with the measurement inner cylinder
Face is provided with medial wall of the tube in heater, temperature sensor and pressure sensor, the measurement and is provided with graduated scale；
It is used to contain the soil body to be measured and test water in the measurement inner cylinder.
Preferably, it is filled with heat-insulation layer between the heat-insulated outer barrel and measurement inner cylinder.
Preferably, it is provided with heat-insulated provided with second at the top of the first heat-insulated cover plate, the measurement inner cylinder at the top of the heat-insulated outer barrel
Cover plate.
Preferably, the described first heat-insulated cover plate and the second heat-insulated cover plate are stirred provided with that can install the mounting hole of rubber stopper
The agitating shaft for mixing device is extend into measurement inner cylinder through rubber stopper endoporus.
Preferably, the heat-insulated outer barrel is provided with the display for being used for reading temperature value and mass value.
Preferably, the heat-insulated outer barrel and measurement inner cylinder are columnar structured.
Preferably, the heat-insulated outer barrel and measurement inner cylinder are detachably connected.
Preferably, also it is mounted with thermometer on the heat-insulated outer barrel.
The beneficial effects of the utility model：The utility model device is extremely applicable to field and quickly measures water content of soil,
Its simple to operate, expense is low, it is short to expend the time.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the easy device of field measurement water content of soil；
In figure, heat-insulated outer barrel 1, the first heat-insulated cover plate 1.1, measurement inner cylinder 2, the second heat-insulated cover plate 2.1, agitator 3, stirring
Axle 3.1, heater 4, temperature sensor 5, pressure sensor 6, graduated scale 7, the soil body to be measured 8, test water 9, heat-insulation layer 10, rubber
Plug 11, display 12.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of easy device of field measurement water content of soil, including heat-insulated outer barrel 1；
Provided with measurement inner cylinder 2 in the heat-insulated outer barrel 1, agitator 3, the measurement inner cylinder 2 are provided with the measurement inner cylinder 2
Bottom surface is provided with heater 4, temperature sensor 5 and pressure sensor 6, and measurement inner cylinder 2 madial wall is provided with graduated scale 7；
It is used to contain the soil body 8 to be measured and test water 9 in the measurement inner cylinder 2.
In the above-mentioned technical solutions, the measurement temperature of inner cylinder 2 can be heated to designated value by heater 4, and temperature and quality are by temperature
Spend sensor 5 and pressure sensor 6 is monitored in time.
Preferably, it is filled with heat-insulation layer 10 between the heat-insulated outer barrel 1 and measurement inner cylinder 2.Thermal loss can so be reduced.
Preferably, the top of heat-insulated outer barrel 1 is provided with the first heat-insulated cover plate 1.1, and the top of measurement inner cylinder 2 is provided with second
Heat-insulated cover plate 2.1.
Preferably, the described first heat-insulated cover plate 2.1 of heat-insulated cover plate 1.1 and second, which is provided with, can install the peace of rubber stopper 11
Hole is filled, the agitating shaft 3.1 of agitator 3 is extend into measurement inner cylinder 2 through the endoporus of rubber stopper 11.So stirred by manual rotation
The soil body is uniformly mixed in solution by axle 3.1.
Preferably, the heat-insulated outer barrel 1 is provided with the display 12 for being used for reading temperature value and mass value.
Preferably, the heat-insulated outer barrel 1 and measurement inner cylinder 2 are columnar structured.
Preferably, the heat-insulated outer barrel 1 and measurement inner cylinder 2 are detachably connected.So measurement inner cylinder 2 can be separated,
It is easy to cleaning and the Reusability of instrument.
Preferably, also it is mounted with thermometer 13 on the heat-insulated outer barrel 1.So thermometer 13 conveniently can be removed at any time
In the soil body for extending into the external world, to determine the initial temperature of the soil body.
The present embodiment operation principle is as follows：
First, the specific heat capacity of the region soil body to be measured is defined with the present apparatus.
First pass through conventional method and try to achieve water content of soil ωWaterWith dry density ρ.The wherein formula of water content and dried density：
Utilize the formula of principle of heat balance：
m1·cSoil·t0+(m2-m1)·cWater·t1=[m1·cSoil+(m2-m1)·cWater]·t2
In formula：m1For the quality of drying soil, kg；cSoilFor the native specific heat capacity of drying, KJ/ (kgc °)；t0For the initial of drying soil
Temperature, DEG C；m2For the gross mass of water and soil, kg；cWaterFor the specific heat capacity of water, KJ/ (kgc °)；t1For the initial temperature of water, DEG C；
t2For water and native mixed temperature, DEG C.
The specific heat capacity that region dry ground to be measured can be tried to achieve is：
2nd, after soil body specific heat capacity is defined, according to principle of heat balance, the aqueous mass M of soil body sample to be measured is calculatedxAnd it is aqueous
Measure γ, wherein formula 1.：
In formula：CWaterFor the specific heat capacity of water, KJ/ (kgc °)；M0For the initial mass of water, kg；T1For the initial temperature of water,
℃；M1For soil body sample to be measured and water gross mass, kg；MxContain water quality, kg for soil body sample to be measured；CSoilFor the specific heat capacity of dry ground,
KJ/(kg·c°)；T0For soil body sample initial temperature to be measured, DEG C；T2For the temperature of soil body sample to be measured and water after mixing, DEG C.
Formula is obtained after arrangement 2.：
So as to which 3. water content is：
The specific process of the test of the present embodiment and related data are as follows：
First, the specific heat capacity of the region soil body to be measured is defined
A. the soil body that diameter is 50cm is chosen in area to be measured, the soil body is uniformly put into measurement inner cylinder 2, measuring thickness is
h0=10cm (is read) by barrel graduated scale 7, initial mass m0=23.4kg.
B. temperature is controlled between 70-80 DEG C by heater 4, heated 8 hours, until quality is basically unchanged, read now matter
Measure m1=20.7kg, the native water content isDry density is：
C. temperature t is again read off0=77 DEG C.Add temperature t1=30 DEG C of water (specific heat capacity CWater=4.18KJ/kgc °),
Now gross mass m2=50.2kg.The soil body is uniformly blended into water.After 5 minutes, now t is read2=36.17 DEG C.
D. the formula of principle of heat balance is utilized：
m1·cSoil·t0+(m2-m1)·cWater·t1=[m1·cSoil+(m2-m1)·cWater]·t2
The specific heat capacity that dry ground can be tried to achieve is：
2nd, according to principle of heat balance, the aqueous mass M of soil body sample to be measured is calculatedxAnd water content γ
1. water is put into instrument, initial mass M0=29.5kg, raises instrument temperature.Choose area to be measured a diameter of
50cm sample soil, measures temperature for T0=26 DEG C.
2. instrument temperature reaches T1After=50 DEG C, stop heating, soil sample is put into measurement inner cylinder 2, stirred.Place 5
Minute or so, the temperature T of record now2=40.18 DEG C and mass M1=51.1kg.
3. according to principle of heat balance be formula 1., 2. and 3., calculate water content γ=13.3% in sample.
Traditional Method determines water content and the present embodiment determines water content correction data such as following table.
Both measured results are basically identical, therefore available for field quickly to determine the soil body aqueous for the utility model device
Amount.
The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model
Embodiment in system, the application and the feature in embodiment can be mutually combined in the case where not conflicting.This practicality is new
Technical characteristic in the technical scheme that the protection domain of type should be recorded with claim, including the technical scheme of claim record
Equivalents are protection domain.Equivalent substitution i.e. within this range is improved, also protection domain of the present utility model it
It is interior.
Claims (8)
1. a kind of easy device of field measurement water content of soil, including heat-insulated outer barrel（1）, it is characterised in that：
The heat-insulated outer barrel（1）It is interior to be provided with measurement inner cylinder（2）, the measurement inner cylinder（2）It is interior to be provided with agitator（3）, the measurement
Inner cylinder（2）Bottom surface is provided with heater（4）, temperature sensor（5）And pressure sensor（6）, the measurement inner cylinder（2）Madial wall
Provided with graduated scale（7）；
The measurement inner cylinder（2）It is interior to be used to contain the soil body to be measured（8）And test water（9）.
2. the easy device of field measurement water content of soil according to claim 1, it is characterised in that：The heat-insulated outer barrel
（1）With measurement inner cylinder（2）Between be filled with heat-insulation layer（10）.
3. the easy device of field measurement water content of soil according to claim 1, it is characterised in that：The heat-insulated outer barrel
（1）Top is provided with the first heat-insulated cover plate（1.1）, the measurement inner cylinder（2）Top is provided with the second heat-insulated cover plate（2.1）.
4. the easy device of field measurement water content of soil according to claim 3, it is characterised in that：Described first is heat-insulated
Cover plate（1.1）With the second heat-insulated cover plate（2.1）Rubber stopper can be installed by being provided with（11）Mounting hole, agitator（3）Stirring
Axle（3.1）Through rubber stopper（11）Endoporus extend into measurement inner cylinder（2）It is interior.
5. the easy device of field measurement water content of soil according to claim 1, it is characterised in that：The heat-insulated outer barrel
（1）It is provided with the display for being used for reading temperature value and mass value（12）.
6. the easy device of field measurement water content of soil according to claim 1, it is characterised in that：The heat-insulated outer barrel
（1）With measurement inner cylinder（2）It is columnar structured.
7. the easy device of field measurement water content of soil according to claim 1, it is characterised in that：The heat-insulated outer barrel
（1）With measurement inner cylinder（2）It is detachably connected.
8. the easy device of field measurement water content of soil according to claim 1, it is characterised in that：The heat-insulated outer barrel
（1）On be also mounted with thermometer（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065414.1U CN206399875U (en) | 2017-01-19 | 2017-01-19 | The easy device of field measurement water content of soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065414.1U CN206399875U (en) | 2017-01-19 | 2017-01-19 | The easy device of field measurement water content of soil |
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| Publication Number | Publication Date |
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| CN206399875U true CN206399875U (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720065414.1U Expired - Fee Related CN206399875U (en) | 2017-01-19 | 2017-01-19 | The easy device of field measurement water content of soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051871A (en) * | 2020-08-31 | 2020-12-08 | 中国科学院西北生态环境资源研究院 | In-situ control device for temperature of soil for field plant growth |
-
2017
- 2017-01-19 CN CN201720065414.1U patent/CN206399875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051871A (en) * | 2020-08-31 | 2020-12-08 | 中国科学院西北生态环境资源研究院 | In-situ control device for temperature of soil for field plant growth |
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Granted publication date: 20170811 Termination date: 20180119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |