CN106249317A - Evaporation from water surface measuring method based on ess-strain signal of telecommunication relation - Google Patents
Evaporation from water surface measuring method based on ess-strain signal of telecommunication relation Download PDFInfo
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- CN106249317A CN106249317A CN201610848244.4A CN201610848244A CN106249317A CN 106249317 A CN106249317 A CN 106249317A CN 201610848244 A CN201610848244 A CN 201610848244A CN 106249317 A CN106249317 A CN 106249317A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
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- 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
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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Abstract
The invention discloses a kind of evaporation from water surface measuring method based on ess-strain signal of telecommunication relation.The measurement apparatus of a kind of water surface evaporation is set, is made up of evaporating dish, resistance strain gage and signal acquiring system.Evaporating dish uses stainless steel material to be processed into, and internal diameter is 20.0mm, and height is 10.0mm, wall thickness 2.6mm.Resistance strain gage resistance is 350, and version uses uniaxial strain sheet, a length of 1.0mm of foil gauge wire grid.Signal picker is made up of communication wire and computer end；The real-time measurement of water surface evaporation it is capable of by this device.This method principle is simple and convenient to operate, strong adaptability, and the result of measurement accurately and securely, can be that the research of association area provides convenient with application.
Description
Technical field
The invention belongs to weather monitoring technical field, particularly to a kind of water surface based on stress-strain-signal of telecommunication relation
Evaporation capacity measuring method, the method is applicable to the relevant departments such as agricultural, forestry, meteorology, scientific research.
Background technology
Water surface evaporation is one of main meteorological parameter of most weather station monitoring, refers to that moisture is through evaporation within certain period
And spreading to the amount in air, it characterizes the characteristic of face, land moisture evaporation, is the important composition of water circulation.In recent years, along with
The aggravation of the global climate corruptions such as greenhouse effect, causes the common concern of people, particularly on affecting climate condition
The evaporation quantifier elimination of one of key factor also becomes more and more important, and accurately measures evaporation capacity and carry out evaporation capacity research
Antecedent basis.Measurement apparatus currently for water surface evaporation mainly has evaporation pan, large-scale evaporation tub and evaporating dish etc. several
Kind.Wherein, evaporation pan meets with its cheap and simple, easy and simple to handle, the close reality of simulation evaporation situation and certainty of measurement
The advantage of most of duty requirements and receive much concern.And the measuring principle of the evaporation pan device of main flow is mainly weighed at present
Principle and ultrasonic wave principle, they all have some limitations.Wherein, ultrasonic wave principle is primarily present following limitation: (1)
The error that manual operation causes is big, and certainty of measurement is low；(2) measure under subzero environment inaccurate；(3) unloaded in device
Time (there is no water), be easily damaged sensor.Although and weighing principle overcomes the limitation of ultrasonic wave principle, but still suffer from measuring former
Limitation in reason, the most most anti-fowl cover (overlap such as device mouth top and outwards open into trumpet-shaped metal gauze circle) can not be complete
Avoid birds etc. that the touching of LOAD CELLS causes the inaccurate of measurement.
Summary of the invention
The invention aims to overcome defect present in prior art, it is provided that a kind of based on stress-strain-telecommunications
The evaporation from water surface measuring method of number relation.
Concretely comprise the following steps:
(1) measurement apparatus of a kind of water surface evaporation is set, by evaporating dish, resistance strain gage and signal acquiring system group
Become；Evaporating dish uses stainless steel material to be processed into, and internal diameter is 20.0mm, and height is 10.0mm, wall thickness 2.6mm；Resistance-strain
Sheet is arranged on the center of evaporating dish, and its resistance is 350 Ω, and version uses uniaxial strain sheet, and foil gauge wire grid is a length of
1.0mm；Signal acquiring system is made up of communication wire and computer end.
(2) measurement apparatus arranging step (1) carries out demarcating correction, concretely comprises the following steps: every night 8 uses rainfall bucket
The water measuring 20mm is poured in evaporating dish, then puts anti-fowl cover, makes zero signal acquiring system simultaneously, second night
Measure remaining height of water level in evaporating dish with rainfall bucket, signal acquiring system is made zero again simultaneously for 8, same method
Implementing a week continuously, the data detected signal acquiring system by the result of manual measurement after the week are corrected.
(3) measurement apparatus after step (2) being corrected comes into operation, and measures with rainfall bucket first night 8
The water of 20.0mm is poured in evaporating dish, then puts anti-fowl cover, and the most whole device just carries out real-time prison to water surface evaporation
Survey and evaporation causes the amount of SEA LEVEL VARIATION in evaporating dish be converted into the signal of telecommunication, finally returning to the signal of telecommunication to computer end, the most in fact
Now evaporation from water surface measurement based on stress-strain-signal of telecommunication relation.
Described evaporation causes the amount of SEA LEVEL VARIATION in evaporating dish be converted into the principle that realizes of the signal of telecommunication be: should based on resistance
Become the principle of sheet, i.e. stress-strain-signal of telecommunication relation, evaporation cause the amount of SEA LEVEL VARIATION in evaporating dish be converted into the signal of telecommunication,
The checking calculation process being somebody's turn to do measuring method based on stress-strain-signal of telecommunication relation is as follows:
Resistance strain gage operation principle:Will strain and be converted into the signal of telecommunication.
In formula, R is resistance value, it is possible to record, KSFor the sensitivity coefficient of material, for it is known that ε is the strain at measuring point.
The Hooke's law of material: σ=E ε
In formula, σ is stress suffered by material, and E is the elastic modelling quantity of material.
Water surface elevation difference DELTA h (mm)=test value-initial value=ho-h1 in evaporation capacity=evaporating dish.
Test value: after certain time evaporates, residual water level height in evaporating dish.
Initial value: initial time evaporating dish middle water level height.
Front and back the difference of twice water surface elevation value is the evaporation capacity of this time period.
Then,
The advantage of the inventive method:
(1) efficiently solving birds etc. to measuring the interference of sensor, measurement result is the most accurate.
(2) the method principle based on foil gauge, the stable performance of measurement, reliable.
(3) strong adaptability, can pass through signal at high temperature, high pressure, under water and use under the adverse circumstances such as high-intensity magnetic field simultaneously
Acquisition system integrated is capable of in real time, continuous print is measured automatically, it is possible to be effectively improved work efficiency.
Accompanying drawing explanation
Fig. 1 is the front view of device used herein.
Fig. 2 is the top view of device used herein.
Labelling in figure: 1-evaporating dish；2-spout hole；3-resistance strain gage；4-signal acquiring system.
Detailed description of the invention
Embodiment:
(1) measurement apparatus of a kind of water surface evaporation is set, by evaporating dish, resistance strain gage and signal acquiring system group
Become；Evaporating dish uses stainless steel material to be processed into, and internal diameter is 20.0mm, and height is 10.0mm, wall thickness 2.6mm；Resistance-strain
Sheet is arranged on the center of evaporating dish, and its resistance is 350 Ω, and version uses uniaxial strain sheet, and foil gauge wire grid is a length of
1.0mm；Signal acquiring system is made up of communication wire and computer end.
(2) use said apparatus time, first tackle whole device carry out demarcate correction, concretely comprise the following steps: every night 8 with
Rainfall bucket measures the water of 20mm and pours in evaporating dish, then puts anti-fowl cover, makes zero signal acquiring system simultaneously, and second
At 8 in it evening measures remaining height of water level in evaporating dish with rainfall bucket, again makes zero signal acquiring system simultaneously.With
Quadrat method is implemented a week continuously, and the data detected signal acquiring system by the result of manual measurement after the week carry out school
Just.
(3) signal acquiring system after correction just can come into operation, and measures the evaporation capacity in certain period of time, only need to be the
Pouring the water of 20mm into evaporating dish at 8 one evening, the most whole device just carries out real-time monitoring to water surface evaporation
And returning the signal of telecommunication to computer end, this apparatus system just can the most automatically gather and achieve, and i.e. realizes based on stress-should
The evaporation from water surface measurement of change-signal of telecommunication relation.If rainy day occurs in surveying range, corresponding evaporation capacity deduction rainfall
?.
Claims (1)
1. an evaporation from water surface measuring method based on stress-strain-signal of telecommunication relation, it is characterised in that concretely comprise the following steps:
(1) measurement apparatus of a kind of water surface evaporation is set, is made up of evaporating dish, resistance strain gage and signal acquiring system；Steam
Sending out ware uses stainless steel material to be processed into, and internal diameter is 20.0mm, and height is 10.0mm, wall thickness 2.6mm；Resistance strain gage is arranged
In the center of evaporating dish, its resistance is 350 Ω, and version uses uniaxial strain sheet, a length of 1.0mm of foil gauge wire grid；
Signal acquiring system is made up of communication wire and computer end；
(2) measurement apparatus arranging step (1) carries out demarcating correction, concretely comprises the following steps: every night 8 measures with rainfall bucket
The water of 20mm is poured in evaporating dish, then puts anti-fowl cover, makes zero signal acquiring system simultaneously, second night 8 point
Measuring remaining height of water level in evaporating dish with rainfall bucket, again make zero signal acquiring system simultaneously, same method is even
In one week of continuous enforcement, the data detected signal acquiring system by the result of manual measurement after the week are corrected；
(3) measurement apparatus after step (2) being corrected comes into operation, and measures 20.0mm's first night 8 with rainfall bucket
Water is poured in evaporating dish, then puts anti-fowl cover, and the most whole device just carries out real-time monitoring and will steam water surface evaporation
The amount of SEA LEVEL VARIATION in evaporating dish of having carried out the coffin upon burial is converted into the signal of telecommunication, finally returns to the signal of telecommunication to computer end, i.e. realizes based on should
The evaporation from water surface measurement of power-strain-signal of telecommunication relation；
Described evaporation causes the amount of SEA LEVEL VARIATION in evaporating dish be converted into the principle that realizes of the signal of telecommunication be: based on resistance strain gage
Principle, i.e. stress-strain-signal of telecommunication relation, evaporation causes the amount of SEA LEVEL VARIATION in evaporating dish be converted into the signal of telecommunication, this base
As follows in the checking calculation process of the measuring method of stress-strain-signal of telecommunication relation:
Resistance strain gage operation principle:Will strain and be converted into the signal of telecommunication；
In formula, R is resistance value, it is possible to record, KSFor the sensitivity coefficient of material, for it is known that ε is the strain at measuring point；
The Hooke's law of material: σ=E ε；
In formula, σ is stress suffered by material, and E is the elastic modelling quantity of material；
Water surface elevation difference DELTA h (mm)=test value-initial value=ho-h1 in evaporation capacity=evaporating dish；
Test value: after certain time evaporates, residual water level height in evaporating dish；
Initial value: initial time evaporating dish middle water level height；
Front and back the difference of twice water surface elevation value is the evaporation capacity of this time period；
Then,
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610848244.4A CN106249317B (en) | 2016-09-26 | 2016-09-26 | Based on stress-strain-electric signal relationship evaporation from water surface measuring method |
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| CN201610848244.4A CN106249317B (en) | 2016-09-26 | 2016-09-26 | Based on stress-strain-electric signal relationship evaporation from water surface measuring method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201885942U (en) * | 2010-11-25 | 2011-06-29 | 中国林业科学研究院林业研究所 | Soil evaporation sensor |
| CN102565876A (en) * | 2010-12-27 | 2012-07-11 | 张新潮 | Ultrasonic water surface evaporation measuring instrument |
| CN102608674A (en) * | 2012-02-26 | 2012-07-25 | 长安大学 | Water surface evaporation test system |
| CN203772356U (en) * | 2014-02-24 | 2014-08-13 | 中国农业科学院农业资源与农业区划研究所 | Weighing type automatic evaporometer |
-
2016
- 2016-09-26 CN CN201610848244.4A patent/CN106249317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201885942U (en) * | 2010-11-25 | 2011-06-29 | 中国林业科学研究院林业研究所 | Soil evaporation sensor |
| CN102565876A (en) * | 2010-12-27 | 2012-07-11 | 张新潮 | Ultrasonic water surface evaporation measuring instrument |
| CN102608674A (en) * | 2012-02-26 | 2012-07-25 | 长安大学 | Water surface evaporation test system |
| CN203772356U (en) * | 2014-02-24 | 2014-08-13 | 中国农业科学院农业资源与农业区划研究所 | Weighing type automatic evaporometer |
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Application publication date: 20161221 Assignee: Guangxi Earthquake Prevention Engineering Technology Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2022450000059 Denomination of invention: Measurement method of water surface evaporation based on stress-strain electrical signal relationship Granted publication date: 20190205 License type: Common License Record date: 20221118 |
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