CN202008454U - Hanging direct weighing type miniature lysimeter - Google Patents
Hanging direct weighing type miniature lysimeter Download PDFInfo
- Publication number
- CN202008454U CN202008454U CN2011200728523U CN201120072852U CN202008454U CN 202008454 U CN202008454 U CN 202008454U CN 2011200728523 U CN2011200728523 U CN 2011200728523U CN 201120072852 U CN201120072852 U CN 201120072852U CN 202008454 U CN202008454 U CN 202008454U
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- lysimeter
- soil body
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- small
- weighing
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Abstract
The utility model relates to the field of agriculture science and research instruments and discloses a hanging direct weighing type miniature lysimeter. The lysimeter comprises a support frame, a weighing device, a soil device and a data acquisition device, wherein the weighing device is arranged below the top of the support frame, the soil device is connected with the weighing device by a connecting component, and the data acquisition device is connected with a data acquisition device through a data transmission line. The hanging direct weighing type miniature lysimeter adopts a direct weighing mode to greatly reduce the manufacture cost of the lysimeter and improve the stability of the lysimeter. Besides, a hanging weighing mode is adopted, so that the work load for arranging the lysimeter and soil disturbance are reduced, and meanwhile, the accuracy and the stability of tested data are improved.
Description
Technical field
The utility model relates to agri-scientific research instrument and equipment field, relates in particular to the small-sized lysimeter of the direct Weighing type of a kind of suspension.
Background technology
Lysimeter is a code test instrument of measuring soil evaporation and plant transpiration, and it has widely in plant/crop is evapotranspired the scientific researches such as vertical migration of water consumption rule, soil water movement process and agrochemical substances uses.The main body of lysimeter is the body structure that is embedded in below ground, is filled with the soil of constant weight in this casing, by weighing device this casing is carried out routine weighing, and adjacent difference of weighing for twice is the evaporation/evapotranspiration of the soil of studying in this period.
The root system of considering part plant/crop is darker, and for reducing the edge effect and the measuring error of test, so that test of long duration observation, therefore the volume of most of lysimeters is bigger simultaneously, and it loads the soil volume can reach 4～12m
3, weight reaches several tons.The purpose of design of lysimeter is that the soil water amount of measuring unit's time changes, and promptly requires lysimeter can measure the weight change of the soil body of studying as far as possible accurately.Usually only for tens of grams, this precision and resolution to the lysimeter weighing system has proposed very high requirement for several tons the soil body of weighing in this variation.For precision and the resolution that improves weighing system, present large-scale lysimeter has all designed complicated mechanical devices, thereby use lever principle small weight change is amplified.Yet complicated weighing device also makes become complicated, cost of the structure of lysimeter raise significantly when improving the lysimeter precision, and this has limited the application of lysimeter to a great extent.Simultaneously, traditional lysimeter is below Weighing type structure, therefore need the balance and the stability of symmetrical heavy soil body to carry out complicated processing, remake into influence with the crank symmetry of the soil body of avoiding weighing, this has also reduced the measuring accuracy of lysimeter to a certain extent.
The utility model content
(1) technical matters that will solve
The technical matters that the utility model solved is: a kind of simple in structure and lysimeter of adopting the top to weigh is provided, thereby guarantees the precision of lysimeter and lower the cost of lysimeter.
(2) technical scheme
In order to achieve the above object, the utility model proposes the small-sized lysimeter of the direct Weighing type of a kind of suspension, comprising:
Bracing frame;
Weighing device is arranged at the below at support frame as described above top;
Soil body apparatus, it is connected with described weighing device by web member;
Data collector, it is connected with described data collector by data line.
Wherein, also comprise: soil body spacer assembly, it is socketed on the outside of described soil body apparatus.
Wherein, described web member is 3 cablet ropes, and the two ends of every cablet rope connect described weighing device and described soil body apparatus respectively.
Wherein, described soil body apparatus is a right cylinder.
Wherein, described soil body apparatus is made by corrosion resistant plate.
Wherein, described soil body spacer assembly is a right cylinder.
Wherein, support frame as described above is a tripod.
Wherein, the diameter of described soil body apparatus is 50cm, and height is 60cm.
Wherein, described soil body spacer assembly diameter is 52cm, and height is 60cm.
Wherein, described weighing device is a force transducer.
(3) beneficial effect
The technical solution of the utility model has following advantage: the small-sized lysimeter of the direct Weighing type of (1) suspension of the present utility model adopts the mode of directly weighing, and has reduced the cost of manufacture of lysimeter significantly, has improved the stability of lysimeter; (2) the small-sized lysimeter of the direct Weighing type of suspension of the present utility model adopts the mode that overhung is weighed, thereby has reduced workload that lysimeter is installed and to the disturbance of soil, improved the degree of accuracy and the stability of institute's determination data simultaneously.
Description of drawings
Fig. 1 is the structural representation of the small-sized lysimeter of the direct Weighing type of suspension of the present utility model.
Embodiment
In order to be illustrated more clearly in the technical solution of the utility model, be further described below in conjunction with accompanying drawing.
Be illustrated in figure 1 as the structural representation of the small-sized lysimeter of the direct Weighing type of suspension of the present utility model, comprise: bracing frame 1, weighing device 2, web member 3, soil body apparatus 4, soil body spacer assembly 5, data line 6 and data collector 7.
The tripod that bracing frame 1 is made for the hollow steel pipe of diameter 4cm, this tripod are 60 ° of angles separately, and the summit is high 1.5m far from ground.
Weighing device 2 is arranged at the below at bracing frame 1 top, and weighing device 2 can adopt the totally-enclosed high-precision force sensor of S type, and its error at measurment is 2/10000ths, can reach 0.2mm to the Measurement Resolution of soil evaporation/evapotranspire.Weighing device 2 links to each other with data collector 7 by data cable 6.
Soil body apparatus 4 is connected with weighing device 2 by web member 3.Web member 3 can be the cablet rope that 3 diameters are 5mm, and the two ends of every cablet rope connect weighing device 2 and soil body apparatus 4 respectively.Soil body apparatus 4 is the right cylinders that are welded by the thick stainless-steel sheet of 3mm, and this cylinder diameter is 50cm, and height is 60cm.The outside socket soil body spacer assembly 5 of soil body apparatus 4 is used for the soil body and surrounding soil in the soil body apparatus 4 isolatedly, and soil body spacer assembly 5 also is a right cylinder, and its diameter is 52cm, and height is 60cm.Soil body apparatus 4 is embedded in underground, and the upper end is equal with ground surface, wherein loads soil or gathers original-pack soil.
In using the process of lysimeter of the present utility model, data collector 7 is regularly gathered weighing devices, the measurement data of sensor and storing just, and the difference of adjacent 2 determination datas is the soil evaporation/evapotranspiration of this soil body in this period.
The above only is an embodiment of the present utility model, should be understood that, for those skilled in the art, under the prerequisite that does not break away from the utility model know-why, can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (10)
1. one kind is hung the small-sized lysimeter of direct Weighing type, it is characterized in that, comprising:
Bracing frame (1);
Weighing device (2) is arranged at the below at support frame as described above (1) top;
Soil body apparatus (4), it is connected with described weighing device (2) by web member (3);
Data collector (7), it is connected with described data collector (7) by data line (6).
2. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 1 also comprises: soil body spacer assembly (5), it is socketed on the outside of described soil body apparatus (4).
3. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 2 is characterized in that, described web member (3) is 3 cablet ropes, and the two ends of every cablet rope connect described weighing device (2) and described soil body apparatus (4) respectively.
4. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 3 is characterized in that described soil body apparatus (4) is a right cylinder.
5. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 4 is characterized in that described soil body apparatus (4) is made by corrosion resistant plate.
6. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 5 is characterized in that described soil body spacer assembly (5) is a right cylinder.
7. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 6 is characterized in that support frame as described above (1) is a tripod.
8. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 7 is characterized in that the diameter of described soil body apparatus (4) is 50cm, and height is 60cm.
9. the small-sized lysimeter of the direct Weighing type of suspension as claimed in claim 8 is characterized in that, described soil body spacer assembly (5) diameter is 52cm, and height is 60cm.
10. as the small-sized lysimeter of the direct Weighing type of each described suspension among the claim 1-9, it is characterized in that described weighing device (2) is a force transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200728523U CN202008454U (en) | 2011-03-18 | 2011-03-18 | Hanging direct weighing type miniature lysimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200728523U CN202008454U (en) | 2011-03-18 | 2011-03-18 | Hanging direct weighing type miniature lysimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202008454U true CN202008454U (en) | 2011-10-12 |
Family
ID=44750114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200728523U Expired - Fee Related CN202008454U (en) | 2011-03-18 | 2011-03-18 | Hanging direct weighing type miniature lysimeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN202008454U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937557A (en) * | 2012-10-29 | 2013-02-20 | 江苏大学 | Method and device for measuring moisture content of tray matrix |
| CN104266929A (en) * | 2014-09-19 | 2015-01-07 | 西北农林科技大学 | Automatic minitype lysimeter suitable for sandy soil |
| CN105158106A (en) * | 2015-05-07 | 2015-12-16 | 中国科学院寒区旱区环境与工程研究所 | Cold region micro-lysimeter measurement system and environment temperature compensation method using the same |
| CN111220661A (en) * | 2020-01-21 | 2020-06-02 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Calibration device and method for soil moisture sensor |
| CN113433023A (en) * | 2021-06-02 | 2021-09-24 | 西北农林科技大学 | Slope grassland lysimeter |
-
2011
- 2011-03-18 CN CN2011200728523U patent/CN202008454U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937557A (en) * | 2012-10-29 | 2013-02-20 | 江苏大学 | Method and device for measuring moisture content of tray matrix |
| CN104266929A (en) * | 2014-09-19 | 2015-01-07 | 西北农林科技大学 | Automatic minitype lysimeter suitable for sandy soil |
| CN105158106A (en) * | 2015-05-07 | 2015-12-16 | 中国科学院寒区旱区环境与工程研究所 | Cold region micro-lysimeter measurement system and environment temperature compensation method using the same |
| CN105158106B (en) * | 2015-05-07 | 2017-11-10 | 中国科学院寒区旱区环境与工程研究所 | A kind of cold area's miniature evaporator measuring system and its compensation method to environment temperature |
| CN111220661A (en) * | 2020-01-21 | 2020-06-02 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Calibration device and method for soil moisture sensor |
| CN111220661B (en) * | 2020-01-21 | 2022-08-09 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Calibration device and method for soil moisture sensor |
| CN113433023A (en) * | 2021-06-02 | 2021-09-24 | 西北农林科技大学 | Slope grassland lysimeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20120318 |