CN102353602A - Compensating automatic measurement system and method of soil surface evaporation capacity - Google Patents
Compensating automatic measurement system and method of soil surface evaporation capacity Download PDFInfo
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- CN102353602A CN102353602A CN2011101600714A CN201110160071A CN102353602A CN 102353602 A CN102353602 A CN 102353602A CN 2011101600714 A CN2011101600714 A CN 2011101600714A CN 201110160071 A CN201110160071 A CN 201110160071A CN 102353602 A CN102353602 A CN 102353602A
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Abstract
The invention relates to a compensating automatic measurement system and a method of soil surface evaporation capacity. The system comprises a soil measure apparatus, an evaporating weighing sensor, a negative pressure compensating apparatus and a control apparatus. The soil measure apparatus comprises a chassis, a ceramic plate and soil column cylinder; a water guiding zone is arranged between the chassis and the ceramic plate, and the chassis is provided with a water-guiding hole. The negative pressure compensating apparatus comprises a water supplementing bottle connecting with the water-guiding hole through a pipeline, a negative pressure buffer bottle connecting with the water supplementing bottle through a pipeline, a negative pressure sensor and a negative pressure pump that are connected to the negative pressure buffer bottle successively through pipelines, and a tensiometer ceramic head connecting with another negative pressure sensor. The control apparatus comprises a singlechip, a click circuit, an A / D converter, a data memory device, a communication interface circuit, a power supply and a drive circuit; the A / D converter transmits data collected by the two negative pressure sensors to the singlechip; the click circuit controls time intervals of collecting data from the evaporating weighing sensor and the compensating apparatus and inputs the data to the data memory device through the A / D converter. The invention can be widely applied to measurements of evaporation capacities of various field soil.
Description
Technical field
The present invention relates to a kind of measuring system and method, particularly about a kind of compensation automatic measurement system and method that is used for measuring in real time native face evaporation capacity.
Background technology
Under water scarcity and the dual restriction of ecologic environment, agricultural water must to the water saving, direction develops efficiently.At present; The maximum potential of China's agricultural water conservation is in the field; The moisture that crop absorbs only has 1%-2% to be used for crop organ's formation, other most moisture with crop rising and between the mode of evaporation scatter and disappear, so the evaporation in the field transpiration is the principal mode of agricultural production water consumption.In order to reduce the invalid evaporation transpiration of field moisture; Press for and in real time, accurately to obtain the measurement data of evaporation in the field; Improve water use efficiency, but the evaporation in the field transpiration is a quite complicated continuous process, measures the very big difficulty of the rising existence of evaporation in the field in real time.
Miniature evaporator is a kind of vessel of observing earth evacuator body, and since nineteen eighty-two Boast proposed to utilize miniature evaporator to measure soil body evaporation capacity, many scholars had designed the miniature evaporator of some difference in functionalitys to different research purposes.But existing miniature evaporator is weighed as the master with manual work, wastes time and energy, and not only can not obtain continuous real time data, and also bigger to the influence of farm environment.
Measuring the most direct method of soil body evaporation capacity at present is to utilize large-scale Weighing Lysimeter to measure the exposed soil evaporation capacity; But utilize large-scale Weighing Lysimeter to measure the existence of exposed soil evaporation capacity and cost an arm and a leg, adorn problems such as native difficulty and periodic maintenance difficulty; And large-scale Weighing Lysimeter is bulky; Evaporation between dense planting crop can not be directly measured, the evapotranspiration total amount can only be obtained.In addition; Because the evaporation pan ware that existing miniature evaporator is a kind of back cover; Measure getting in touch to be isolated and come between the soil body and the field soil body; Not corresponding the connection or compensation system; Cause the water status between the inside and outside soil body of miniature evaporator to produce notable difference; In order to reduce the difference of the inside and outside soil body of miniature evaporator as far as possible; The general mode that adopts frequent soil removal and replacement; But in the monitoring period, the difference of the flow of water will cause the evaporation capacity measurement data to exist than mistake between the inside and outside soil body of miniature evaporator.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind of compensation automatic measurement system and method that can keep measuring the soil body field soil face evaporation capacity consistent with the field soil body flow of water.
For realizing above-mentioned purpose; The present invention takes following technical scheme: a kind of compensation automatic measurement system of native face evaporation capacity is characterized in that: it comprises a soil body measurement mechanism, an evaporation LOAD CELLS, a negative pressure compensating device, a compensation weighing sensor and a control device; Said soil body measurement mechanism comprises a chassis, a potter's clay plate and an earth pillar tube that sets gradually from bottom to top; Have a water guide district between said potter's clay plate bottom surface and the said chassis, said water guide district is communicated with a water-guiding hole that is arranged on the said chassis; Said soil body measurement mechanism is placed on the said evaporation LOAD CELLS; Said negative pressure compensating device comprises that one connects the moisturizing bottle of said water-guiding hole through pipeline; One connects the negative pressure buffering bottle of said moisturizing bottle through pipeline; One connects the negative pressure transducer and the negative pressure pump of said negative pressure buffering bottle and a tensiometer ceramic head that is connected with another negative pressure transducer successively through pipeline; Said moisturizing bottle is placed on the said compensation weighing sensor; Said control device comprises a single-chip microcomputer, a clock circuit, an A/D converter, a data memory, a communication interface circuit, a power supply and one drive circuit; The said A/D converter image data of said Single-chip Controlling; The measurement data of two said negative pressure transducers that said A/D converter will collect carries out sending to said single-chip microcomputer after the A/D conversion; Said single-chip microcomputer starts said negative pressure pump through said driving circuit and drives forward or backwards after two signals are compared; Said clock circuit is controlled the time interval of said evaporation LOAD CELLS of twice collection of said single-chip microcomputer and compensation sensor data, and through said A/D converter said data memory of input after the A/D conversion.
Said soil body measurement mechanism also is provided with a platen, and said platen is set in the bottom of said earth pillar tube, and is pressed in the end face of said potter's clay plate.
Said potter's clay plate is provided with one deck polyamide perforated membrane with the surface that the measurement soil body contacts.
A said soil body measurement mechanism, a negative pressure compensating device and a control device correspond to when a plurality of each other, and the communication interface circuit of said control device connects an outer computer or data acquisition unit through a SDI-12 bus interface and realizes that many groups measure the soil bodys and divide cell measurement.
Adopt the compensation method for automatic measurement of a kind of native face evaporation capacity of said system, it comprises the steps: 1) measuring system that includes soil body measurement mechanism, evaporation LOAD CELLS, negative pressure compensating device, compensation weighing sensor and control device is set; 2) before the measurement; Take out the measurement soil body with cutting ring; Put into said soil body measurement mechanism; Adding water is stirred to rare soft; And be embedded in the soil body of field; The moisturizing bottle of negative pressure compensating device is connected the water guide district of soil body measurement mechanism through pipeline, the negative pressure buffering bottle of negative pressure compensating device is connected negative pressure pump through negative pressure transducer, the ceramic head that will connect another negative pressure transducer again in the negative pressure compensating device inserts in the soil body of field; 3) A/D converter of control device is gathered two negative pressure transducers respectively to the flow of water of the measurement soil body and the flow of water measurement result of the field soil body, and the single-chip microcomputer of measurement data conversion back input control device is carried out the data contrast; 4) comparing result that obtains according to step 3) of the single-chip microcomputer of control device, the driving circuit through control device start the negative pressure pump of negative pressure compensating device to be regulated with the flow of water of the field soil body the flow of water of measuring the soil body, to guarantee the two flow of water unanimity; 5) clock circuit of control device is according to the time interval of single-chip microcomputer setting, and twice collection of control single chip computer evaporation LOAD CELLS and compensation sensor are weighed the time of data, and passes through the data memory that said control device is imported in said A/D converter conversion back; 6) single-chip microcomputer is according to evaporation LOAD CELLS and twice data measured of compensation weighing sensor; Obtain measuring the loss water yield of the soil body and the amount of makeup water of moisturizing bottle; Difference between the two is the evaporation capacity of measuring the soil body in preset time, and then obtains the evaporation total amount of the field soil body in the given interval.
During said A/D converter was gathered said evaporation LOAD CELLS and compensation weighing scales tuple certificate, said single-chip microcomputer stopped the operation of negative pressure pump through said driving circuit.
The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention is owing to be provided with a cover negative pressure compensating device; Therefore it is consistent with the water percentage of the field soil body on every side to guarantee to measure the water percentage of the soil body at any time; Avoid and reduced the existing measurement soil body and the field soil body to isolate and errors caused has improved measuring accuracy greatly.2, the present invention is owing to be provided with evaporation LOAD CELLS, compensation weighing sensor and two negative pressure transducers; Therefore can gather the data such as the flow of water, the field soil body flow of water, measurement soil body evaporation capacity and the moisturizing bottle supply water yield of measuring the soil body at any time; And the flow of water of measuring the soil body and the field soil body is automatically adjusted the continuous coverage of realization field soil body evaporation process through control device.3, the present invention can be provided with data acquisition at interval through single-chip microcomputer according to different needs; Utilize bussing technique with outside computing machine or the data acquisition unit of data input simultaneously; And then form one and measure soil body observation grid; Can realize that promptly many group measurement soil bodys divide cell measurement; Can realize independent measurement again to a certain sub-district, easy to operate flexible.4, therefore the present invention can measure the evaporation total amount of the field soil body owing to realized the continuous coverage of field soil body evaporation process as required at any time.The present invention is simple and reasonable for structure, cost is low, and implement security in the field higher, and little to the farm environment influence, it can be widely used in the measurement of various fields soil body evaporation capacity.
Description of drawings
Fig. 1 is a compensation automatic measurement system structural representation of the present invention;
Fig. 2 is a soil body measurement mechanism diagrammatic cross-section of the present invention;
Fig. 3 is the whole diagrammatic cross-section of soil body measurement mechanism of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
Shown in Fig. 1～3, compensation automatic measurement system of the present invention comprises a soil body measurement mechanism 1 (left side empty frame in), an evaporation LOAD CELLS 2, a negative pressure compensating device 3, a compensation weighing sensor 4 and a control device 5 (in the empty frame in right side).
Soil body measurement mechanism 1 of the present invention comprises the earth pillar tube 14 and a platen 15 of the discoid potter's clay plate in a chassis 11, one 12, a water guide district 13, a central column.Wherein, chassis 11 is provided with a stepped groove 110 (as shown in Figure 2).In the time of need measuring the soil body; At first potter's clay plate 12 is placed in the stepped groove 110 on chassis 11; And potter's clay plate 12 is concordant with the end face on chassis 11; Form a water guide district 13 between potter's clay plate 12 and the stepped groove 110, a water-guiding hole 111 is set in chassis 11 1 sides that are positioned at water guide district 13.The field soil body that needs measurement with the cutting ring taking-up; Earth pillar tube 14 levels are inverted; From the left side of earth pillar tube 14 or the right side measurement soil body of packing into; At this moment earth pillar tube 14 vertically is placed on the potter's clay plate 12; Again platen 15 is set in the bottom of earth pillar tube 14 and be pressed in potter's clay plate 12 above; Accomplish the installation of soil body measurement mechanism 1, at last soil body measurement mechanism 1 is placed on the evaporation LOAD CELLS 2, and is embedded in the soil body of field.
In the foregoing description, water-guiding hole 111 is arranged on the side on chassis 11, the bottom surface that can also be arranged on chassis 11 according to the measurement needs water-guiding hole 111 of reality.Platen 15 is a ring bodies, and it acts on similar packing ring, and purpose is fixing potter's clay plate 12 and guarantee that earth pillar tube 14 stably is placed on the chassis 11.Earth pillar tube 14 is placed into the measurement soil body that needs before the potter's clay plate 12 contact with potter's clay plate 12 and adds water and be stirred to rare softly, and purpose is that the measurement soil body is fully contacted with potter's clay plate 12.Potter's clay plate 12 is provided with one deck polyamide perforated membrane with the surface that the measurement soil body contacts; Be used to promote the air guide value of potter's clay plate 12; Measure the flow of water of the earth pillar tube 14 the inside soil bodys better, greatly rapidly; And can remedy the defective of potter's clay plate 12 manufacturing process; Make its density even; (annotate: the flow of water of the soil body is a kind of index of weighing holard energy; Be in the balanced system of soil and water; The water of Board Lot moves to the pure free water body ability work with reference to situation under constant temperature).
Negative pressure compensating device 3 of the present invention comprises an aqueduct 31, a moisturizing bottle 32, two negative pressure pipes 33,34, a negative pressure buffering bottle 35, a negative pressure pump 36, two negative pressure transducers 37,38 and a tensiometer ceramic head 39.When negative pressure compensating device 3 was installed, an end of aqueduct 31 inserted in the water-guiding hole 111, and the other end of aqueduct 31 extend in the bottom water of moisturizing bottle 32.One end of negative pressure pipe 33 be inserted into moisturizing bottle 32 above, and negative pressure pipe 33 place moisturizing bottle 32 water the top and can not touch water, the other end of negative pressure pipe 33 is inserted in the negative pressure buffering bottle 35.One end of another negative pressure pipe 34 is inserted in the negative pressure buffering bottle 35, and the other end is connected on the negative pressure pump 36, and the negative pressure transducer 37 of on negative pressure pipe 34, connecting.Another negative pressure transducer 38 connects a tensiometer ceramic head 39.During measurement, moisturizing bottle 32 is placed on the compensation weighing sensor 4, and tensiometer ceramic head 39 is placed in the field soil body that is embedded with soil body measurement mechanism 1.
In the foregoing description, negative pressure buffering bottle 35 is used for negative pressure is stablized, and can protect negative pressure pump 36 can not get into liquid.
In the foregoing description; Communication interface circuit 57 also is equipped with a SDI-12 bus interface; Import outside computing machine or data acquisition unit through the SDI-12 bus interface, and then form one and measure soil body observation grid, can realize that many group measurement soil bodys divide the cell measurement (not shown).
Utilize the compensation automatic measurement system of above-mentioned native face evaporation capacity, the measuring method to field soil body evaporation total amount in a period of time comprises the steps:
1) before the measurement; Take out the measurement soil body with cutting ring; To measure the soil body packs in the earth pillar tube 14; Adding water on the soil body is stirred to rare soft; After accomplishing the installation of soil body measurement mechanism 1; Place it on the evaporation LOAD CELLS 2 and form entire measuring device, entire measuring device is embedded in the soil body of field, and tensiometer ceramic head 39 is placed in the field soil body that is embedded with entire measuring device.
When 2) measuring; Evaporation LOAD CELLS 2 and compensation weighing sensor 4 difference energized 51; Two negative pressure transducers 37,38 are measured the flow of water of the measurement soil body and the flow of water of the field soil body in the earth pillar tube 14 respectively; The measurement data that negative pressure transducer 37,38 is gathered in single-chip microcomputer 53 control in real time; A/D converter 55 is gathered the measurement result of two negative pressure transducers to the flow of water of the flow of water of measuring the soil body and the field soil body respectively, and measurement data is carried out data through the single-chip microcomputer 53 of A/D conversion back input control device 5 contrasts.
3) single-chip microcomputer 53 is according to step 2) comparing result that obtains; Start 36 pairs of earth pillar tubes of driving circuit 52 driving negative pressure pumps, the 14 interior measurement soil body flows of water and the field soil body flow of water and regulate, the flow of water and the field soil body flows of water of measuring the soil body in the earth pillar tube 14 are consistent.
If measure the flow of water that the flow of water of measuring the soil body in the earth pillar tube 14 is higher than the field soil body, negative pressure absorbs water potter's clay plate 12 from the soil body of earth pillar tube 14, keep certain negative pressure always the moisture in the earth pillar tube 14 is drawn in the moisturizing bottle 22; If the flow of water of the soil body is lower than the field soil body flow of water in the earth pillar tube 14 that measures; Potter's clay plate 12 will absorb water from moisturizing bottle 22 and carry out moisture in the soil body that flows to earth pillar tube 14 and replenish, and the flow of water of measuring the soil bodys in the earth pillar tube 14 and the flow of water of the field soil body are consistent.
4) after accomplishing flow of water adjusting; The time interval that clock circuit 54 is set according to single-chip microcomputer 53; Regularly trigger single-chip microcomputer 53 twice collection evaporation LOAD CELLS 2 and weigh the time of data, and pass through in an A/D converter 55 conversion back input data memories 56 with compensation weighing sensor 4.
5) calculate the difference of evaporating LOAD CELLS 2 and twice measurement data in compensation weighing sensor 4 front and back respectively; Promptly obtain the measurement soil body loss water yield of earth pillar tube 14 and the amount of makeup water in the moisturizing bottle 32; To measure the soil body loss water yield and amount of makeup water subtracts each other; The measurement soil body evaporation capacity of earth pillar tube 14 in finally obtaining when given at interval, the area through measuring the soil body and the area conversion of the field soil body then can obtain the evaporation total amount of the field soil body in preset time.
In the foregoing description; Influence the weighing measurement precision when avoiding negative pressure pump 36 work; During the data of weighing of A/D converter collection evaporation LOAD CELLS 2 and compensation weighing sensor 4; Single-chip microcomputer 53 control Driver Circuit 52 quit work; After the data acquisition of weighing is accomplished, continue to realize negative pressure control.
In sum, the present invention adopts the negative pressure compensating device, guarantees that the flow of water of measuring the soil body flow of water and the field soil body is consistent, and efficiently solves the traditional Weighing type evaporator soil body and the field soil body and isolates the error of bringing, and has greatly improved measuring accuracy.
Above-mentioned each embodiment only is used to illustrate the present invention; Wherein step of the structure of each parts, connected mode and implementation method etc. all can change to some extent; Every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (7)
1. the compensation automatic measurement system of a native face evaporation capacity is characterized in that: it comprises a soil body measurement mechanism, an evaporation LOAD CELLS, a negative pressure compensating device, a compensation weighing sensor and a control device;
Said soil body measurement mechanism comprises a chassis, a potter's clay plate and an earth pillar tube that sets gradually from bottom to top; Have a water guide district between said potter's clay plate bottom surface and the said chassis, said water guide district is communicated with a water-guiding hole that is arranged on the said chassis; Said soil body measurement mechanism is placed on the said evaporation LOAD CELLS;
Said negative pressure compensating device comprises that one connects the moisturizing bottle of said water-guiding hole through pipeline; One connects the negative pressure buffering bottle of said moisturizing bottle through pipeline; One connects the negative pressure transducer and the negative pressure pump of said negative pressure buffering bottle and a tensiometer ceramic head that is connected with another negative pressure transducer successively through pipeline; Said moisturizing bottle is placed on the said compensation weighing sensor;
Said control device comprises a single-chip microcomputer, a clock circuit, an A/D converter, a data memory, a communication interface circuit, a power supply and one drive circuit; The said A/D converter image data of said Single-chip Controlling; The measurement data of two said negative pressure transducers that said A/D converter will collect carries out sending to said single-chip microcomputer after the A/D conversion; Said single-chip microcomputer starts said negative pressure pump through said driving circuit and drives forward or backwards after two signals are compared; Said clock circuit is controlled the time interval of said evaporation LOAD CELLS of twice collection of said single-chip microcomputer and compensation sensor data, and through said A/D converter said data memory of input after the A/D conversion.
2. the compensation automatic measurement system of a kind of native face evaporation capacity as claimed in claim 1 is characterized in that: said soil body measurement mechanism also is provided with a platen, and said platen is set in the bottom of said earth pillar tube, and is pressed in the end face of said potter's clay plate.
3. the compensation automatic measurement system of a kind of native face evaporation capacity as claimed in claim 1 is characterized in that: said potter's clay plate is provided with one deck polyamide perforated membrane with the surface that the measurement soil body contacts.
4. the compensation automatic measurement system of a kind of native face evaporation capacity as claimed in claim 2 is characterized in that: said potter's clay plate is provided with one deck polyamide perforated membrane with the surface that the measurement soil body contacts.
5. like the compensation automatic measurement system of claim 1 or 2 or 3 or 4 described a kind of native face evaporation capacity; It is characterized in that: a said soil body measurement mechanism, a negative pressure compensating device and a control device correspond to when a plurality of each other, and the communication interface circuit of said control device connects an outer computer or data acquisition unit through a SDI-12 bus interface and realizes that many groups measure the soil bodys and divide cell measurement.
6. adopt the compensation method for automatic measurement like claim 1～5 a kind of native face evaporation capacity of system as described in each, it comprises the steps:
1) measuring system that includes soil body measurement mechanism, evaporation LOAD CELLS, negative pressure compensating device, compensation weighing sensor and control device is set;
2) before the measurement; Take out the measurement soil body with cutting ring; Put into said soil body measurement mechanism; Adding water is stirred to rare soft; And be embedded in the soil body of field; The moisturizing bottle of negative pressure compensating device is connected the water guide district of soil body measurement mechanism through pipeline, the negative pressure buffering bottle of negative pressure compensating device is connected negative pressure pump through negative pressure transducer, the ceramic head that will connect another negative pressure transducer again in the negative pressure compensating device inserts in the soil body of field;
3) A/D converter of control device is gathered two negative pressure transducers respectively to the flow of water of the measurement soil body and the flow of water measurement result of the field soil body, and the single-chip microcomputer of measurement data conversion back input control device is carried out the data contrast;
4) comparing result that obtains according to step 3) of the single-chip microcomputer of control device, the driving circuit through control device start the negative pressure pump of negative pressure compensating device to be regulated with the flow of water of the field soil body the flow of water of measuring the soil body, to guarantee the two flow of water unanimity;
5) clock circuit of control device is according to the time interval of single-chip microcomputer setting, and twice collection of control single chip computer evaporation LOAD CELLS and compensation sensor are weighed the time of data, and passes through the data memory that said control device is imported in said A/D converter conversion back;
6) single-chip microcomputer is according to evaporation LOAD CELLS and twice data measured of compensation weighing sensor; Obtain measuring the loss water yield of the soil body and the amount of makeup water of moisturizing bottle; Difference between the two is the evaporation capacity of measuring the soil body in preset time, and then obtains the evaporation total amount of the field soil body in the given interval.
7. like the compensation method for automatic measurement of a kind of native face evaporation capacity as described in the claim 6; It is characterized in that: during said A/D converter was gathered said evaporation LOAD CELLS and compensation weighing scales tuple certificate, said single-chip microcomputer stopped the operation of negative pressure pump through said driving circuit.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590016A (en) * | 2012-02-16 | 2012-07-18 | 中国农业大学 | Soil moisture characteristic curve measurement device and measurement method thereof |
| CN102928575A (en) * | 2012-11-12 | 2013-02-13 | 中南大学 | Device capable of keeping saturation of experimental soil mass constant |
| CN102937545A (en) * | 2012-11-12 | 2013-02-20 | 中南大学 | Method for maintaining constant degree of saturation of test soil body |
| CN103512609A (en) * | 2012-10-29 | 2014-01-15 | 中国科学院地理科学与资源研究所 | Method and device for measuring indoor evaporation capacity in real-time and on-line mode |
| CN105067474A (en) * | 2015-07-27 | 2015-11-18 | 北京师范大学 | In-situ soil evaporation amount measurement apparatus |
| CN105571977A (en) * | 2016-01-22 | 2016-05-11 | 成都汉维斯科技有限公司 | Evaporator and implementation method thereof |
| CN106442196A (en) * | 2016-08-31 | 2017-02-22 | 徐州市伟思水务科技有限公司 | Weighing type automatic subsurface evaporation-filtration measuring device |
| CN108591983A (en) * | 2018-04-28 | 2018-09-28 | 广东美的厨房电器制造有限公司 | Steam generating system and its scale detection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482428A (en) * | 2009-01-15 | 2009-07-15 | 大连理工大学 | Multi-cylinder compensation type water surface evapotranspirometer and its use method |
| US20100212409A1 (en) * | 2009-02-25 | 2010-08-26 | Ramanathan Sri Ranjan | Plant-Controlled Atmometer for Measuring Crop Evapotranspiration |
-
2011
- 2011-06-15 CN CN 201110160071 patent/CN102353602B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482428A (en) * | 2009-01-15 | 2009-07-15 | 大连理工大学 | Multi-cylinder compensation type water surface evapotranspirometer and its use method |
| US20100212409A1 (en) * | 2009-02-25 | 2010-08-26 | Ramanathan Sri Ranjan | Plant-Controlled Atmometer for Measuring Crop Evapotranspiration |
Non-Patent Citations (2)
| Title |
|---|
| 《水利学报》 20040831 孙宏勇等 "微型蒸发器测定土面蒸发的试验研究" 第114-118页 1-7 , 第8期 * |
| 孙宏勇等: ""微型蒸发器测定土面蒸发的试验研究"", 《水利学报》, no. 8, 31 August 2004 (2004-08-31), pages 114 - 118 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590016A (en) * | 2012-02-16 | 2012-07-18 | 中国农业大学 | Soil moisture characteristic curve measurement device and measurement method thereof |
| CN102590016B (en) * | 2012-02-16 | 2013-11-06 | 中国农业大学 | Measurement method of soil moisture characteristic curve measurement device |
| CN103512609A (en) * | 2012-10-29 | 2014-01-15 | 中国科学院地理科学与资源研究所 | Method and device for measuring indoor evaporation capacity in real-time and on-line mode |
| CN102928575A (en) * | 2012-11-12 | 2013-02-13 | 中南大学 | Device capable of keeping saturation of experimental soil mass constant |
| CN102937545A (en) * | 2012-11-12 | 2013-02-20 | 中南大学 | Method for maintaining constant degree of saturation of test soil body |
| CN102928575B (en) * | 2012-11-12 | 2014-11-19 | 中南大学 | Device capable of keeping saturation of experimental soil mass constant |
| CN102937545B (en) * | 2012-11-12 | 2015-03-04 | 中南大学 | Method for maintaining constant degree of saturation of test soil body |
| CN105067474A (en) * | 2015-07-27 | 2015-11-18 | 北京师范大学 | In-situ soil evaporation amount measurement apparatus |
| CN105067474B (en) * | 2015-07-27 | 2017-08-08 | 北京师范大学 | A kind of original position soil evaporative capacity measuring apparatus |
| CN105571977A (en) * | 2016-01-22 | 2016-05-11 | 成都汉维斯科技有限公司 | Evaporator and implementation method thereof |
| CN106442196A (en) * | 2016-08-31 | 2017-02-22 | 徐州市伟思水务科技有限公司 | Weighing type automatic subsurface evaporation-filtration measuring device |
| CN108591983A (en) * | 2018-04-28 | 2018-09-28 | 广东美的厨房电器制造有限公司 | Steam generating system and its scale detection method |
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