CN106092252A - A kind of experiment high-precision digital automatic water level tests system - Google Patents
A kind of experiment high-precision digital automatic water level tests system Download PDFInfo
- Publication number
- CN106092252A CN106092252A CN201610626181.8A CN201610626181A CN106092252A CN 106092252 A CN106092252 A CN 106092252A CN 201610626181 A CN201610626181 A CN 201610626181A CN 106092252 A CN106092252 A CN 106092252A
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- probe
- conducting probe
- water level
- measured
- automatic water
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/18—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of experiment high-precision digital automatic water level test system, including: power supply；Conducting probe, is connected with power supply；Drive mechanism, for driving conducting probe lifting moving according to driving instruction；Earthing module, is used for making solution ground to be measured；Displacement transducer, for gathering the positional information of conducting probe；Control module, it is connected with drive mechanism and displacement transducer respectively, control module is for sending driving instruction to drive mechanism, control module is additionally operable to obtain the primary importance information of conducting probe when power supply, conducting probe, formation path between solution to be measured and earthing module, control module is additionally operable to obtain the second position information of conducting probe when the bottom surface of conducting probe contact measured solution, and control module is additionally operable to the primary importance information according to conducting probe and second position information obtains the depth information of solution to be measured.Present invention have the advantage that measurement result precision height and without converting.
Description
Technical field
The present invention relates to public safety and hydro science crossing domain, automatic particularly to one experiment high-precision digital
Water level test system.
Background technology
Many scientific experimentss fields such as (especially) hydraulicss need to measure the depth of water accurately.The most existing
Various water depth sensors cannot meet experiment demand sometimes.Ultrasonic solution surface detector limited precision, is typically only capable of reaching centimetre
Magnitude, minority can reach a millimeter magnitude, it is impossible to meets the requirement of precision experiment.The precision of laser ranging detector own is the highest, but
Owing to the transparency of water is the highest, when water-depth measurement, effect is bad.Pressure type sensor is by ambient temperature and the shadow of air pressure
Ring bigger, therefore limited precision, and also under some is unsatisfactory for the occasion of static pressure distribution, use can cause measuring error (such as
In rainfall simulation experiment, raindrop can cause extra surge, causes the anti-depth of water pushed away of pressure sensor measurements bigger than normal).Resistance,
Condenser type water depth sensor needs contact measurement, may affect flow field in the experiment relating to water flowing, also can be because of contact angle
Hysteretic phenomenon and produce extra error.Additionally, major part water depth sensor all exports analogue signal at present, need to carry out modulus and turn
Change and could connect computer and realize automatic data collection and process, analog-digital conversion process inevitably results from secondary by mistake
Difference.And, analogue signal is easily subject to interference in relatively long distance transmitting procedure, causes corrupt data.
Summary of the invention
It is contemplated that at least solve one of above-mentioned technical problem.
Use to this end, it is an object of the present invention to propose high and without carrying out converting the experiment of a kind of measurement result precision
High-precision digital automatic water level test system.
To achieve these goals, embodiment of the invention discloses that a kind of experiment high-precision digital automatic water level is surveyed
Test system, including: power supply；Conducting probe, described conducting probe is connected with described power supply；Drive mechanism, described drive mechanism is used
In driving described conducting probe lifting moving according to driving instruction；Earthing module, described earthing module is used for making solution to be measured connect
Ground；Displacement transducer, institute's displacement sensors is for gathering the positional information of described conducting probe；Control module, respectively with institute
Stating drive mechanism and institute's displacement sensors connects, described control module refers to for sending described driving to described drive mechanism
Order, described control module is additionally operable in described power supply, described conducting probe, shape between described solution to be measured and described earthing module
Obtaining the primary importance information of described conducting probe when becoming path, described control module is additionally operable to contact institute at described conducting probe
Obtaining the second position information of described conducting probe when stating the bottom surface of solution to be measured, described control module is additionally operable to described in basis lead
The primary importance information of electric probe and second position information obtain the depth information of described solution to be measured.
The high-precision digital automatic water level of experiment according to embodiments of the present invention tests system, when conducting probe contact is treated
Obtain the primary importance of conducting probe when surveying the water surface conduction of solution, when the bottom surface of conducting probe contact measured solution, and visit
Pin no longer moves the second position obtaining conducting probe at vertical direction, obtains described to be measured according to primary importance and the second position
The degree of depth of solution, measurement result precision is high and without converting.
It addition, experiment high-precision digital automatic water level according to the above embodiment of the present invention test system, it is also possible to
There is following additional technical characteristic:
Further, also include: probe installing component；Installing rack；Wherein, described conducting probe arranges the installation of described probe
On parts, institute's displacement sensors is electronic digital display scale, and one end of the scale of described electronic digital display scale is fixedly installed on institute
Stating on installing rack, the digital display unit of described electronic digital display scale is arranged on described probe installing component；Described drive mechanism bag
Including lead agency and driver element, described lead agency and described probe installing component and connect by connecting rope, described driving is single
Unit is used for driving described lead agency lifting moving.
Further, described installing rack being provided with upright guide rail, described lead agency is slide block, and described slide block is described
Slide on upright guide rail.
Further, also including: spring, described spring is connected with described probe installing component with described installing rack respectively,
Described spring, for when described conducting probe is in bottom described solution to be measured, adds to described to described probe installing component
The active force of solution bottom direction to be measured is to ensure that described conducting probe is relatively fixed with the position of the bottom surface of described solution to be measured.
Further, also including at least one pulley, described spring is stretching spring, one end of described stretching spring and institute
Stating the fixing connection of installing rack, the other end of described stretching spring is by least one pulley described with described probe installing component even
Connecing, at least one pulley described is used for changing Impact direction.
Further, described spring is compression spring, and one end of described compression spring is fixing with described installing rack to be connected, institute
State that the other end of compression spring is fixing with described probe installing component to be connected.
Further, described power supply is negative supply.
Further, described conducting probe is rustless steel probe.
Further, described conducting probe includes that probe body and syringe needle, described probe body are cylinder, described cylinder
The basal diameter of body is more than or equal to three millimeters and less than or equal to five millimeters, and described syringe needle is arranged on the lower section of described probe body.
Further, described installing rack is aluminium alloy installing rack.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 is the structured flowchart of the experiment high-precision digital automatic water level test system of one embodiment of the invention；
Fig. 2 be one embodiment of the invention experiment high-precision digital automatic water level test system in part-structure
Structural representation；
Fig. 3 is the Accuracy Figure automatic water level chaining pin of the embodiment of the present invention and the method using precision electronic balance to weigh
Accurately obtain the comparison diagram of the measurement result of the actual depth of water in container.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score,
Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relatively
Importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
With reference to explained below and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.Describe at these
With in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, represent the enforcement implementing the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, the present invention
All changes, amendment and equivalent in the range of spirit that embodiment includes falling into attached claims and intension.
The experiment high-precision digital automatic water level described according to embodiments of the present invention below in conjunction with accompanying drawing tests system.
Fig. 1 is the structured flowchart of the experiment high-precision digital automatic water level test system of one embodiment of the invention.
As it is shown in figure 1, a kind of experiment high-precision digital automatic water level tests system, including: power supply 110, conduction are visited
Pin 120, drive mechanism 130, earthing module 140, displacement transducer 150 and control module 160.
Wherein, conducting probe 120 is connected with power supply 110.Drive mechanism 130 is for driving conducting probe according to driving instruction
120 lifting moving.Earthing module 140 is used for making solution ground to be measured.Displacement transducer 150 is for gathering conducting probe 120
Positional information.Control module 160 is connected with drive mechanism 130 and displacement transducer 150 respectively, for drive mechanism 130
Send driving instruction.Control module 160 is additionally operable to shape between power supply 110, conducting probe 120, solution to be measured and earthing module 140
Obtain the primary importance information of conducting probe 120 when becoming path, and obtain when the bottom surface of conducting probe 120 contact measured solution
Take the second position information of conducting probe 120, and the primary importance information and second position information according to conducting probe 120 obtains
The depth information of solution to be measured.
Specifically, when testing, conducting probe 120 is perpendicular to the water surface of solution to be measured and arranges.Power-on 110,
And make earthing module be connected with solution to be measured.Control module 160 sends driving instruction, drive mechanism 130 to drive mechanism 130
Control conducting probe 120 according to driving instruction to move straight down.When the water surface of conducting probe 120 contact measured solution, at electricity
Connecting between source 110, conducting probe 120, solution to be measured and earthing module 140, now control module 160 detects above-mentioned module
During connection, control drive mechanism 130 time-out and drive conducting probe 120 to continue to move down, keep conducting probe 120 position to fix
First Preset Time.Conducting probe 120 can cause the water surface fluctuation occur when the water surface of contact measured solution, suspends first and presets
Time is the primary importance information in order to accurately measure conducting probe 120.Specifically, in the first Preset Time, it is positioned at
Sensor persistently obtains the positional information of conducting probe 120 and is averaged thus obtains the primary importance letter of conducting probe 120
Breath.Owing to the distance between lower end and the measured position of conducting probe 120 is fixed, therefore primary importance information can reflect to be measured
The water surface elevation positional information of solution.In an example of the present invention, the first Preset Time is 0.5 second-1 second.When controlling machine
After structure 160 gathers and record primary importance information, continue to control drive mechanism 130 and continue to drive conducting probe 120 to continue downwards
It is mobile, until conducting probe 120 in the vertical direction no longer moves (the i.e. end of the lower end contact measured solution of conducting probe 120
Face) till.Then the second Preset Time is waited.Fluctuation can be caused when conducting probe 120 moves in solution to be measured, suspend second
Preset Time is the second position information in order to accurately measure conducting probe 120, and second position information can reflect to be measured molten
The water-bed height position information of liquid.Specifically, in the second Preset Time, it is positioned at sensor and persistently obtains conducting probe 120
Positional information is also averaged thus obtains the second position information of conducting probe 120.Then according to the first of conducting probe 120
Positional information and second position information obtain the conducting probe 120 displacement in solution to be measured, and then obtain the deep of solution to be measured
Degree information.Second Preset Time is 0.5 second-1 second.
Fig. 2 be one embodiment of the invention experiment high-precision digital automatic water level test system in part-structure
Structural representation.As in figure 2 it is shown, in one embodiment of the invention, experiment high-precision digital automatic water level test is
System also includes probe installing component 131.Position signalling sending module it is provided with on probe installing component 131.Displacement transducer 150
For electronic digital display scale.One end of the scale (not shown) of electronic digital display scale is fixedly installed on installing rack 133, electronics
The digital display unit of digital display scale is arranged on probe installing component 131.Conducting probe 120 is arranged on probe installing component 131.Drive
Motivation structure 130 includes that lead agency and driver element, lead agency and probe installing component 131, by connecting rope 132 connection, drive
Moving cell is used for driving lead agency lifting moving.When the bottom surface of the lower end contact measured solution of conducting probe 120, probe is pacified
Dress parts 131 will not continue to mobile, and lead agency continues downward little scope under the driving of driver element and moves, owing to connecting
The existence of rope 132, can avoid damaging conducting probe 120.
In one embodiment of the invention, experiment high-precision digital automatic water level test system also includes installing rack
133, installing rack 133 is provided with upright guide rail 134.Lead agency is slide block 135, and slide block 135 is sliding on upright guide rail 134
Dynamic, it is ensured that moving by being connected probe installing component 131 in the vertical direction of rope 132 connection with slide block 134, lifting is driven
Precision on dynamic direction.
In one embodiment of the invention, experiment high-precision digital automatic water level test system also includes spring.
Spring is connected with probe installing component 131 with installing rack 133 respectively.Spring is at the bottom of conducting probe 120 is in solution to be measured
During portion, add to the active force of solution bottom direction to be measured molten with to be measured to ensure conducting probe 120 to probe installing component 131
The position of the bottom surface of liquid is relatively fixed, and then ensures that conducting probe 120 is in the bottom surface of solution to be measured continues the second Preset Time
Gather the accuracy of conducting probe 120 position.
In one embodiment of the invention, experiment high-precision digital automatic water level test system also includes at least one
Individual pulley.Spring is stretching spring 170.One end of stretching spring 170 is fixing with installing rack 133 to be connected, and the other end is by least
One pulley is connected with probe installing component 131, and at least one pulley is used for changing Impact direction.An example in the present invention
In, use the first pulley 181 and the second pulley 182 to change Impact direction, thus at the end of conducting probe 120 contact measured solution
Behind face, when the driving force not having probe installing component 131 not to be driven unit, it is ensured that conducting probe 120 is molten with to be measured
The position of the bottom surface of liquid is relatively fixed, and then raised position acquisition precision.
In one embodiment of the invention, spring is compression spring.One end of compression spring is fixing with installing rack 133 even
Connecing, the other end is fixing with probe installing component 131 to be connected, thus behind the bottom surface of conducting probe 120 contact measured solution, is visiting
When pin installing component 131 is not driven the driving force of unit, it is ensured that the position of the bottom surface of conducting probe 120 and solution to be measured
It is relatively fixed, and then raised position acquisition precision.
In one embodiment of the invention, power supply 110 is negative supply, so that the electromotive force ratio of conducting probe 120 is treated
Survey solution is low, and then is possible to prevent conducting probe 120 by electrolytic etching.
In one embodiment of the invention, conducting probe 120 is rustless steel probe, prevents conducting probe 120 to be corroded.
In an example of the present invention, conducting probe 120 uses 304 rustless steels or 316 stainless steel materials to make.
In one embodiment of the invention, conducting probe 120 includes probe body and syringe needle.Syringe needle is arranged on probe master
The lower section of body.Probe body is cylinder, and cylindrical basal diameter is more than or equal to three millimeters and less than or equal to five millimeters, too carefully
Hardness is inadequate, may produce bending, cause basal surface position measured value on the low side, cause water-depth measurement value bigger than normal when measuring bottom surface；Too
Thick then cause cost increase, and the resistance that when measuring the water of flowing, thick probe causes is big, measure and terminate rear current when needing longer
Between recover stable..
In one embodiment of the invention, installing rack 133 is aluminium alloy installing rack, it is ensured that intensity reduces weight simultaneously.
Fig. 3 is the Accuracy Figure automatic water level chaining pin of the embodiment of the present invention and the method using precision electronic balance to weigh
Accurately obtain the comparison diagram of the measurement result of the actual depth of water in container.Having Fig. 3 to understand, mean square error (RMSE) is only 0.06mm.
It addition, the experiment of the embodiment of the present invention is tested other composition of system with high-precision digital automatic water level and makees
With being the most all known, in order to reduce redundancy, do not repeat.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
These embodiments can be carried out multiple change in the case of departing from the principle of the present invention and objective, revise, replace and modification, this
The scope of invention is limited by claim and equivalent thereof.
Claims (10)
1. an experiment high-precision digital automatic water level tests system, it is characterised in that including:
Power supply；
Conducting probe, described conducting probe is connected with described power supply；
Drive mechanism, described drive mechanism is for driving described conducting probe lifting moving according to driving instruction；
Earthing module, described earthing module is used for making solution ground to be measured；
Displacement transducer, institute's displacement sensors is for gathering the positional information of described conducting probe；
Control module, is connected with described drive mechanism and institute's displacement sensors respectively, and described control module is for driving to described
Motivation structure sends described driving instruction, and described control module is additionally operable at described power supply, described conducting probe, described solution to be measured
And when forming path between described earthing module, obtaining the primary importance information of described conducting probe, described control module is additionally operable to
The second position information of described conducting probe, described control is obtained when described conducting probe contacts the bottom surface of described solution to be measured
Module is additionally operable to the primary importance information according to described conducting probe and second position information obtains the degree of depth of described solution to be measured
Information.
Experiment high-precision digital automatic water level the most according to claim 1 test system, it is characterised in that also wrap
Include:
Probe installing component；
Installing rack；
Wherein, described conducting probe arranges on described probe installing component, and institute's displacement sensors is electronic digital display scale, described
One end of the scale of electronic digital display scale is fixedly installed on described installing rack, and the digital display unit of described electronic digital display scale is arranged
On described probe installing component；Described drive mechanism includes lead agency and driver element, described lead agency and described spy
Pin installing component connects by connecting rope, and described driver element is used for driving described lead agency lifting moving.
Experiment high-precision digital automatic water level the most according to claim 2 test system, it is characterised in that described peace
Shelving and be provided with upright guide rail, described lead agency is slide block, and described slide block slides on described upright guide rail.
Experiment high-precision digital automatic water level the most according to claim 3 test system, it is characterised in that also wrap
Include:
Spring, described spring is connected with described probe installing component with described installing rack respectively, and described spring is for leading described
When electric probe is in bottom described solution to be measured, add the work to described solution bottom direction to be measured to described probe installing component
Firmly to ensure that described conducting probe is relatively fixed with the position of the bottom surface of described solution to be measured.
Experiment high-precision digital automatic water level the most according to claim 4 test system, it is characterised in that also include
At least one pulley, described spring is stretching spring, and one end of described stretching spring and described installing rack are fixed and be connected, described in draw
The other end stretching spring is connected with described probe installing component by least one pulley described, and at least one pulley described is used for
Change Impact direction.
Experiment high-precision digital automatic water level the most according to claim 4 test system, it is characterised in that described bullet
Spring is compression spring, and one end of described compression spring is fixing with described installing rack to be connected, the other end of described compression spring and institute
State the fixing connection of probe installing component.
7. testing system according to the high-precision digital automatic water level of the experiment described in any one of claim 1-6, its feature exists
In, described power supply is negative supply.
8. testing system according to the high-precision digital automatic water level of the experiment described in any one of claim 1-6, its feature exists
In, described conducting probe is rustless steel probe.
9. testing system according to the high-precision digital automatic water level of the experiment described in any one of claim 1-6, its feature exists
In, described conducting probe includes that probe body and syringe needle, described probe body are cylinder, and described cylindrical basal diameter is big
In equal to three millimeters and less than or equal to five millimeters, described syringe needle is arranged on the lower section of described probe body.
10. testing system according to the high-precision digital automatic water level of the experiment described in any one of claim 3-6, its feature exists
In, described installing rack is aluminium alloy installing rack.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610626181.8A CN106092252A (en) | 2016-08-02 | 2016-08-02 | A kind of experiment high-precision digital automatic water level tests system |
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| CN201610626181.8A CN106092252A (en) | 2016-08-02 | 2016-08-02 | A kind of experiment high-precision digital automatic water level tests system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482802A (en) * | 2016-12-26 | 2017-03-08 | 北京美科华仪科技有限公司 | Liquid evaporation amount detecting device |
| CN106595799A (en) * | 2016-12-26 | 2017-04-26 | 李长财 | Device for monitoring water level of water tank for firefighting |
| CN108955510A (en) * | 2018-09-10 | 2018-12-07 | 宁波兰辰光电有限公司 | A kind of soft elastic slice detection device of metal and detection method |
| CN109095412A (en) * | 2018-09-06 | 2018-12-28 | 北京科技大学 | A kind of stay-supported apparatus for automatically lifting for hot melt body |
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| CN106482802A (en) * | 2016-12-26 | 2017-03-08 | 北京美科华仪科技有限公司 | Liquid evaporation amount detecting device |
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| CN109095412A (en) * | 2018-09-06 | 2018-12-28 | 北京科技大学 | A kind of stay-supported apparatus for automatically lifting for hot melt body |
| CN108955510A (en) * | 2018-09-10 | 2018-12-07 | 宁波兰辰光电有限公司 | A kind of soft elastic slice detection device of metal and detection method |
| CN108955510B (en) * | 2018-09-10 | 2024-02-13 | 宁波兰辰光电有限公司 | Metal soft elastic sheet detection device and detection method |
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