CN204086063U - Lever soil lysimeter system - Google Patents
Lever soil lysimeter system Download PDFInfo
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- CN204086063U CN204086063U CN201420422739.7U CN201420422739U CN204086063U CN 204086063 U CN204086063 U CN 204086063U CN 201420422739 U CN201420422739 U CN 201420422739U CN 204086063 U CN204086063 U CN 204086063U
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Abstract
The utility model provides lever soil lysimeter system, comprise be made up of one-level balance stem and one level of support primary lever, by secondary balance stem and secondary support form second lever, supported the three grades of levers formed by three grades of balance stems and three grades.The lever soil lysimeter system that the utility model provides, utilize lever principle, by three grades of levers, the weight be directly pressed on weighing platform is reduced about about 300 times, then the weight change of tested soil is calculated by the weight obtained on weighing platform, calculated the Evapotranspiration of the soil body by the variable quantity of tested soil body weight and leakage, thus make measurement result more accurate, safeguard more simple and convenient.
Description
Technical field
The utility model relates to soil surveying technical field, particularly relates to lever soil lysimeter system.
Background technology
Existing Weighing Lysimeter System can only measure the weight change amount of overall tested soil, and can not measure the general assembly (TW) of overall tested soil.What existing Weighing Lysimeter was applied due to physical construction is integral hanging mode, and long-time large weight hangs and requires high for suspension material used, sensor accuracy and mounting means.
Utility model content
The purpose of this utility model provide a kind of structure simple, measure accurate lever soil lysimeter system.
Lever soil lysimeter system, comprise be made up of one-level balance stem and one level of support primary lever, by secondary balance stem and secondary support form second lever, supported the three grades of levers formed by three grades of balance stems and three grades; Described primary lever is arranged on one end of secondary balance stem, and three grades of levers are arranged on the other end of secondary balance stem, and the other end of described secondary balance stem is also provided with the balancing weight for balancing primary lever weight; Described one level of support is arranged on the two ends of one-level balance stem, one level of support is placed with the container that soil is housed; Described secondary supports 1/3rd positions being arranged on secondary balance stem; Described three grades are supported and fixed on for being supported by three grades of balance stems on secondary balance stem, and one end of described three grades of balance stems is provided with electronic scales, and the other end is provided with the counterweight being weighed weight of object on balance electronic scale and its; Described balance electronic scale is provided with LOAD CELLS, and described LOAD CELLS is connected with host computer by data line.
Further, lever soil lysimeter system as above, is provided with some leakage sensors in described container, described leakage sensor is connected with host computer by data line.
Further, lever soil lysimeter system as above, described leakage sensor is arranged in order setting from top to bottom in container.
Further, lever soil lysimeter system as above, described three grades of supports are arranged on three grades of balance stem 1/3rd positions.
The lever soil lysimeter system that the utility model provides, utilize lever principle, by three grades of levers, the weight being directly pressed in (primary lever upper container) on weighing platform is reduced about about 300 times, then the weight change of tested soil is calculated by the weight obtained on weighing platform, calculated the Evapotranspiration of the soil body by the variable quantity of tested soil body weight and leakage, thus make measurement result more accurate, safeguard more simple and convenient.
Accompanying drawing explanation
Fig. 1 is the utility model lever soil lysimeter system architecture schematic diagram.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below technical scheme in the utility model be clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the utility model lever soil lysimeter system architecture schematic diagram, as shown in Figure 1, the lever soil lysimeter system that the utility model provides, comprises the primary lever be made up of one-level balance stem 12 and one level of support 11, the three grades of levers supporting 21 second levers formed by secondary balance stem 22 and secondary, be made up of three grades of balance stems 32 and three grades of supports 31; Described primary lever is arranged on one end of secondary balance stem 22, and three grades of levers are arranged on the other end of secondary balance stem 22, and the other end of described secondary balance stem 22 is also provided with the balancing weight 23 for balancing primary lever weight; Described one level of support 11 is arranged on the two ends of one-level balance stem, one level of support 11 is placed with the container 4 that soil is housed; Described secondary supports 1/3rd positions that 21 are arranged on secondary balance stem 22; Described three grades of supports 31 are fixed on for being supported by three grades of balance stems 32 on secondary balance stem 22, and one end of described three grades of balance stems 32 is provided with electronic scales 33, and the other end is provided with the counterweight 34 being weighed weight of object on balance electronic scale 33 and its; Described balance electronic scale 33 is provided with LOAD CELLS, and described LOAD CELLS is connected with host computer 6 by data line.Described three grades of supports 31 are arranged on three grades of balance stem 1/32nd 3 positions.
Native system a kind ofly soil is housed and measures the system of water transform under limiting three-dimensional boundaries condition.Measurement mechanism is placed in underground, field, and to simulate grown in field environment, surface exposure or cover plant, be used for determining to grow crop or tatol evapotranspiration, exposed soil evaporation capacity with reference to plant.This device is generally all located at outdoor spacious observation field, can single or in groups, complete setting.The analog signals measured is converted to digital signal, and treated display is also recorded in data acquisition unit, and can download data in PC (host computer), analyzes for user, research.
Principle: weighing system adopts lever principle, container and its in-built soil weight are reduced about 1:300, and counterpoise is set in a certain position of lever, this counterweight can balance the overwhelming majority of general assembly (TW), and the weight be not balanced is measured by the high-precision electronic scale be arranged on end and lever.
Be provided with some leakage sensors 5 in described container 4, described leakage sensor 5 is connected with host computer 6 by data line.Described leakage sensor 5 is arranged in order setting from top to bottom in container 4.
Data acquisition system (DAS) principle:
Front-end module can gather the signal of electronic scales and leakage sensor, amplify process, again these digital signals are transferred to data acquisition unit by RS485 mode, data acquisition unit adopts single-chip microcomputer as 10G CPU Control Unit, adopt FlashROM as data carrier, 30000 groups of data can be recorded continuously, often group by weighing, leakage and corresponding time forms, and preserves.Host computer can obtain data with real-time or history two kinds of modes by RS-232 or USB mode from data acquisition unit, and is calculated by upper computer software, is organized into the data of standard format, curve, chart, analyzes, files for experimenter.
In native system, the evapotranspiration of unit interval calculates like this.General assembly (TW) variable quantity deducts leakage variable quantity and is evapotranspiration.General assembly (TW) variable quantity in system deducts rear value by the front value of general assembly (TW) and calculates.Leakage sensors is accumulated value, so leakage variable quantity is that before deducting by rear value, value calculates.
The utility model lysimeter system completes measurement by the interconnective lever of three covers, installs efficient and convenient, and use high-precision weighing sensor directly to measure digital quantity and measure, linear stable is more accurate by measurement data.This lever lysimeter utilizes lever principle can measure weight change amount in lysimeter, can also accurately measure the general assembly (TW) of overall native case according to one.According to lever principle: after the weight change of one end, other end weight equal proportion changes, so weight change amount in lysimeter just can be drawn by calculating after measuring the variable quantity of electronic scale end, same according to lever principle, when just can be drawn the general assembly (TW) in lysimeter soil case after the general assembly (TW) recording lever end by calculating.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (4)
1. lever soil lysimeter system, it is characterized in that, comprise be made up of one-level balance stem (12) and one level of support (11) primary lever, support the second lever that (21) form, the three grades of levers be made up of three grades of balance stems (32) and three grades of supports (31) by secondary balance stem (22) and secondary; Described primary lever is arranged on one end of secondary balance stem (22), three grades of levers are arranged on the other end of secondary balance stem (22), and the other end of described secondary balance stem (22) is also provided with the balancing weight (23) for balancing primary lever weight; Described one level of support (11) is arranged on the two ends of one-level balance stem, one level of support (11) is placed with the container (4) that soil is housed; Described secondary supports 1/3rd positions that (21) are arranged on secondary balance stem (22); Described three grades of supports (31) are fixed on secondary balance stem (22) for three grades of balance stems (32) being supported, one end of described three grades of balance stems (32) is provided with electronic scales (33), and the other end is provided with for balance electronic scale (33) and the counterweight (34) it being weighed weight of object; Described balance electronic scale (33) is provided with LOAD CELLS, and described LOAD CELLS is connected with host computer (6) by data line.
2. lever soil lysimeter system according to claim 1, it is characterized in that, be provided with some leakage sensors (5) in described container (4), described leakage sensor (5) is connected with host computer (6) by data line.
3. lever soil lysimeter system according to claim 2, is characterized in that, described leakage sensor (5) is arranged in order setting from top to bottom in container (4).
4. lever soil lysimeter system according to claim 1, is characterized in that, described three grades of supports (31) are arranged on three grades of balance stems (32) 1/3rd position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420422739.7U CN204086063U (en) | 2014-07-29 | 2014-07-29 | Lever soil lysimeter system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420422739.7U CN204086063U (en) | 2014-07-29 | 2014-07-29 | Lever soil lysimeter system |
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| CN204086063U true CN204086063U (en) | 2015-01-07 |
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| CN201420422739.7U Active CN204086063U (en) | 2014-07-29 | 2014-07-29 | Lever soil lysimeter system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596631A (en) * | 2015-01-13 | 2015-05-06 | 北京林业大学 | Method for calibrating weighing precision of weighing lysimeter |
| CN108801839A (en) * | 2018-06-05 | 2018-11-13 | 武汉大学 | Large-scale lysimeter intelligent monitor system |
| CN109186704A (en) * | 2018-10-11 | 2019-01-11 | 华北水利水电大学 | Evaporation capacity method for automatic measurement and device |
| CN109342259A (en) * | 2018-11-30 | 2019-02-15 | 河北建筑工程学院 | A kind of lever lysimeter |
| CN110898446A (en) * | 2019-12-10 | 2020-03-24 | 南京林业大学 | Dual-mode measurement large evaporator |
-
2014
- 2014-07-29 CN CN201420422739.7U patent/CN204086063U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596631A (en) * | 2015-01-13 | 2015-05-06 | 北京林业大学 | Method for calibrating weighing precision of weighing lysimeter |
| CN108801839A (en) * | 2018-06-05 | 2018-11-13 | 武汉大学 | Large-scale lysimeter intelligent monitor system |
| CN109186704A (en) * | 2018-10-11 | 2019-01-11 | 华北水利水电大学 | Evaporation capacity method for automatic measurement and device |
| CN109186704B (en) * | 2018-10-11 | 2024-04-12 | 华北水利水电大学 | Automatic measuring method and device for evaporation capacity |
| CN109342259A (en) * | 2018-11-30 | 2019-02-15 | 河北建筑工程学院 | A kind of lever lysimeter |
| CN110898446A (en) * | 2019-12-10 | 2020-03-24 | 南京林业大学 | Dual-mode measurement large evaporator |
| CN110898446B (en) * | 2019-12-10 | 2023-04-25 | 南京林业大学 | Dual-mode measurement large-scale evaporator |
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