CN205940696U - High accuracy digitization is from dynamic water level test system for experiments - Google Patents
High accuracy digitization is from dynamic water level test system for experiments Download PDFInfo
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- CN205940696U CN205940696U CN201620830655.6U CN201620830655U CN205940696U CN 205940696 U CN205940696 U CN 205940696U CN 201620830655 U CN201620830655 U CN 201620830655U CN 205940696 U CN205940696 U CN 205940696U
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Abstract
The utility model discloses a high accuracy digitization is from dynamic water level test system for experiments, include: a power supply. The conducting probe is connected with the power, actuating mechanism for go up and down to remove according to drive order -driven conducting probe, grounding module for messenger's solution ground connection of awaiting measuring, displacement sensor for gather the positional information of conducting probe, the control modul, be connected with actuating mechanism and displacement sensor respectively, control module is used for sending the drive instruction to actuating mechanism, control module still is used for at the power, the conducting probe, it obtains a positional information of conducting probe to await measuring when forming the route between solution and the grounding module, control module still is used for obtaining the 2nd positional information of conducting probe when the conducting probe contacts the bottom surface of the solution that awaits measuring, control module still is used for the awaited measuring depth information of solution according to a positional information of conducting probe and the 2nd positional information. The utility model has the advantages of as follows: the measuring result precision is high just to be need not to convert.
Description
Technical field
The utility model is related to public safety and hydro science crossing domain, particularly to a kind of experiment high-precision digital
Automatic water level test system.
Background technology
Need the depth of water is accurately measured in many scientific experiments (the especially field such as hydraulics).Existing at present
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 millimeter magnitude it is impossible to meet the requirement of accurate experiment.Laser ranging detector precision itself is very high, but
Because the transparency of water is very high, bad for effect during water-depth measurement.Pressure type sensor is subject to the shadow of environment temperature and air pressure
Ring ratio larger, therefore limited precision, and lead to measuring error (for example using meeting under some occasions being unsatisfactory for static pressure distribution
In rainfall simulation experiment, raindrop can cause extra surge, leads to the anti-depth of water pushing away of pressure sensor measurements bigger than normal).Resistance,
Condenser type water depth sensor needs contact measurement, may affect flow field in the experiment being related to water flowing, also can be because of contact angle
Hysteretic phenomenon and produce extra error.Additionally, most of water depth sensor all exports analog signal at present, need to carry out modulus to turn
Change and could connect computer and realize automatic data collection and process, in analog-digital conversion process, inevitably result from secondary mistake
Difference.And, analog signal is easily interfered in relatively long distance transmitting procedure, leads to corrupt data.
Utility model content
The utility model is intended at least solve one of above-mentioned technical problem.
For this reason, a purpose of the present utility model is the reality proposing a kind of measurement result high precision and need not being converted
Test with high-precision digital automatic water level test system.
To achieve these goals, embodiment of the present utility model discloses a kind of experiment high-precision digital automatic water
Bit test system, including：Power supply；Conducting probe, described conducting probe is connected with described power supply；Drive mechanism, described driving machine
Structure is used for driving described conducting probe lifting moving according to driving instruction；Earthing module, described earthing module is used for making to be measured molten
Liquid is grounded；Displacement transducer, institute's displacement sensors are used for gathering the positional information of described conducting probe；Control module, respectively
It is connected with described drive mechanism and institute's displacement sensors, described control module is used for sending described driving to described drive mechanism
Instruction, described control module be additionally operable to described power supply, described conducting probe, described solution to be measured and described earthing module it
Between obtain the primary importance information of described conducting probe when forming path, described control module is additionally operable to connect in described conducting probe
The second place information of described conducting probe is obtained, described control module is additionally operable to according to institute during the bottom surface touching described solution to be measured
State the primary importance information of conducting probe and second place information obtains the depth information of described solution to be measured.
Experiment according to the utility model embodiment high-precision digital automatic water level test system, when conducting probe connects
The primary importance of conducting probe is obtained during the water surface conduction touching solution to be measured, when the bottom surface of conducting probe contact measured solution,
And probe no longer moves the second place obtaining conducting probe in vertical direction, according to primary importance and the second place obtain
The depth of solution to be measured, measurement result high precision and need not being converted.
In addition, according to the experiment high-precision digital automatic water level test system of the utility model above-described embodiment, also
Can have the technical characteristic adding as follows：
Further, also include：Probe installing component；Installing rack；Wherein, described conducting probe arranges described probe and installs
On part, institute's displacement sensors are electronic digital display scale, and one end of the scale of described electronic digital display scale is fixedly installed on institute
State on installing rack, the digital display unit of described electronic digital display scale is arranged on described probe installing component；Described drive mechanism bag
Include lead agency and driver element, described lead agency and described probe installing component are connected by connecting rope, described driving is single
Unit is used for driving described lead agency lifting moving.
Further, described installing rack is provided with upright guide rail, described lead agency is slide block, and described slide block is described
Slide on upright guide rail.
Further, also include：Spring, described spring is connected with described probe installing component with described installing rack respectively,
Described spring is used for, when described conducting probe is in described solution bottom to be measured, adding to described to described probe installing component
The active force of solution bottom direction to be measured is relatively fixed with ensureing described conducting probe and the position of the bottom surface of described solution to be measured.
Further, also include at least one pulley, described spring is extension spring, one end of described extension spring and institute
State installing rack to be fixedly connected, the other end of described extension spring passes through at least one pulley described with described probe installing component even
Connect, 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 fixedly connected with described installing rack, institute
The other end stating compression spring is fixedly connected with described probe installing component.
Further, described power supply is negative supply.
Further, described conducting probe is stainless steel probe.
Further, described conducting probe includes probe body and syringe needle, and described probe body is cylinder, described cylinder
The basal diameter of body is more than or equal to three millimeters and is 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.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or recognized by practice of the present utility model.
Brief description
Above-mentioned and/or additional aspect of the present utility model and advantage will from reference to the description to embodiment for the accompanying drawings below
Become obvious and easy to understand, wherein：
Fig. 1 is the structural frames with high-precision digital automatic water level test system for the experiment of one embodiment of the utility model
Figure；
Fig. 2 be one embodiment of the utility model experiment high-precision digital automatic water level test system in partly tie
The structural representation of structure；
Fig. 3 is that the Accuracy Figure automatic water level chaining pin of the utility model embodiment is weighed with using precision electronic balance
Method accurately obtains the comparison diagram of the measurement result of the actual depth of water in container.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
It is to restriction of the present utility model.Additionally, term " first ", " second " be only used for describe purpose, and it is not intended that instruction or
Hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning in the utility model for the language.
With reference to explained below and accompanying drawing it will be clear that these and other aspects of embodiment of the present utility model.At these
In description and accompanying drawing, specifically disclose some particular implementation in embodiment of the present utility model, to represent this reality of enforcement
With some modes of the principle of new embodiment but it is to be understood that the scope of embodiment of the present utility model is not limited
System.On the contrary, embodiment of the present utility model includes falling into all changes in the range of the spirit of attached claims and intension
Change, change and equivalent.
Tested with high-precision digital automatic water level according to the experiment of the utility model embodiment below in conjunction with Description of Drawings
System.
Fig. 1 is the structural frames with high-precision digital automatic water level test system for the experiment of one embodiment of the utility model
Figure.
As shown in figure 1, a kind of experiment high-precision digital automatic water level test system, including：Power supply 110, conductive spy
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 used 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 used 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
Become to obtain the primary importance information of conducting probe 120 during path, and obtain when the bottom surface of conducting probe 120 contact measured solution
Take the second place information of conducting probe 120, and the primary importance information according to conducting probe 120 and second place information obtain
The depth information of solution to be measured.
Specifically, when being tested, conducting probe 120 is arranged perpendicular to the water surface of solution to be measured.Power-on 110,
And so that earthing module is connected with solution to be measured.Control module 160 sends driving instruction, drive mechanism 130 to drive mechanism 130
Conducting probe 120 is controlled to move straight down according to driving instruction.When the water surface of conducting probe 120 contact measured solution, in electricity
Connect 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 to suspend 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 in the water surface of contact measured solution, suspend first and preset
Time is the primary importance information in order to accurately measure conducting probe 120.Specifically, in the first Preset Time, it is located at
Sensor persistently obtains the positional information of conducting probe 120 and carries out average thus obtaining the primary importance letter of conducting probe 120
Breath.The distance between lower end and measured position due to conducting probe 120 is fixing, therefore primary importance information can reflect to be measured
The water surface elevation positional information of solution.In an example of the present utility model, the first Preset Time is 0.5 second -1 second.Work as control
After mechanism 160 processed gathers and records primary importance information, continue to control drive mechanism 130 to continue to drive conducting probe 120 to continue
Move down, until conducting probe 120 in the vertical direction no longer moves (the i.e. lower end contact measured solution of conducting probe 120
Bottom surface) till.Then wait the second Preset Time.Fluctuation can be caused when conducting probe 120 moves in solution to be measured, suspend
Second Preset Time is the second place information in order to accurately measure conducting probe 120, and second place information can reflect to be treated
Survey the water-bed height position information of solution.Specifically, in the second Preset Time, persistently obtain conducting probe positioned at sensor
120 positional information is simultaneously carried out averagely thus obtaining the second place information of conducting probe 120.Then according to conducting probe 120
Primary importance information and second place information obtain displacement in solution to be measured for the conducting probe 120, and then obtain to be measured molten
The depth information of liquid.Second Preset Time is 0.5 second -1 second.
Fig. 2 be one embodiment of the utility model experiment high-precision digital automatic water level test system in partly tie
The structural representation of structure.As shown in Fig. 2 in an embodiment of the present utility model, high-precision digital automatic water is used in experiment
Bit test system also includes probe installing component 131.Position signalling sending module is provided with probe installing component 131.Displacement
Sensor 150 is electronic digital display scale.One end of the scale (not shown) of electronic digital display scale is fixedly installed on installing rack
On 133, the digital display unit of electronic digital display scale is arranged on probe installing component 131.Conducting probe 120 arranges probe installation portion
On part 131.Drive mechanism 130 includes lead agency and driver element, and lead agency and probe installing component 131 pass through connecting rope
132 connections, driver element is used for driving lead agency lifting moving.Bottom when the lower end contact measured solution of conducting probe 120
During face, probe installing component 131 will not continue to move, and lead agency continues downward small range under the driving of driver element and moves
Dynamic, due to the presence of connecting rope 132, can avoid damaging conducting probe 120.
In an embodiment of the present utility model, experiment high-precision digital automatic water level test system also includes pacifying
Shelve 133, installing rack 133 is provided with upright guide rail 134.Lead agency is slide block 135, and slide block 135 is on upright guide rail 134
Slide it is ensured that probe installing component 131 in the vertical direction being connected by connecting rope 132 with slide block 134 is moved, lifting
Precision on driving direction.
In an embodiment of the present utility model, experiment high-precision digital automatic water level test system also includes bullet
Spring.Spring is connected with probe installing component 131 with installing rack 133 respectively.Spring is used for being in solution to be measured in conducting probe 120
During bottom, to probe installing component 131 add active force to solution bottom direction to be measured with ensure conducting probe 120 with to be measured
The position of the bottom surface of solution is relatively fixed, and then ensures that conducting probe 120 continues the second Preset Time in the bottom surface of solution to be measured
The accuracy of interior collection conducting probe 120 position.
In an embodiment of the present utility model, experiment high-precision digital automatic water level test system also include to
A few pulley.Spring is extension spring 170.One end of extension spring 170 is fixedly connected with installing rack 133, and the other end passes through
At least one pulley is connected with probe installing component 131, and at least one pulley is used for changing Impact direction.Of the present utility model
In one example, Impact direction is changed using first pulley 181 and second pulley 182, thus in conducting probe 120 contact measured
Behind the bottom surface of solution, do not have probe installing component 131 be not driven unit driving force when it is ensured that conducting probe 120
It is relatively fixed with the position of the bottom surface of solution to be measured, and then raised position acquisition precision.
In an embodiment of the present utility model, spring is compression spring.One end of compression spring is fixing with installing rack 133
Connect, the other end is fixedly connected with probe installing component 131, thus behind the bottom surface of conducting probe 120 contact measured solution,
Probe installing component 131 is not driven during the driving force of the unit it is ensured that position of the bottom surface of conducting probe 120 and solution to be measured
Put and be relatively fixed, and then raised position acquisition precision.
In an embodiment of the present utility model, power supply 110 is negative supply, so that the potential of conducting probe 120
Lower than solution to be measured, and then conducting probe 120 can be prevented by electrolytic etching.
In an embodiment of the present utility model, conducting probe 120 is stainless steel probe, prevents conducting probe 120 quilt
Corrosion.In an example of the present utility model, conducting probe 120 is made using 304 stainless steels or 316 stainless steel materials.
In an embodiment of the present utility model, conducting probe 120 includes probe body and syringe needle.Syringe needle is arranged on spy
The lower section of pin main body.Probe body is cylinder, and cylindrical basal diameter is more than or equal to three millimeters and is less than or equal to five millimeters,
Too thin hardness not, may produce bending during measurement bottom surface, cause basal surface position measured value low, lead to water-depth measurement value inclined
Greatly；Slightly then lead to cost increase very much, and the resistance that when measuring the water of flowing, thick probe causes is big, measurement terminates rear current to be needed relatively
Long-time recovery is stable.
In an embodiment of the present utility model, installing rack 133 is aluminium alloy installing rack it is ensured that intensity reduces weight simultaneously
Amount.
Fig. 3 is that the Accuracy Figure automatic water level chaining pin of the utility model embodiment is weighed with using precision electronic balance
Method accurately obtains the comparison diagram of the measurement result of the actual depth of water in container.Fig. 3 is had to understand, mean square error (RMSE) is only
0.06mm.
In addition, the experiment of the utility model embodiment with high-precision digital automatic water level test system other constitute with
And effect is all known for a person skilled in the art, in order to reduce redundancy, do not repeat.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
Multiple changes, modification, replacement can be carried out to these embodiments in the case of without departing from principle of the present utility model and objective
And modification, scope of the present utility model by claim and its equivalent limits.
Claims (10)
1. a kind of experiment uses high-precision digital automatic water level test 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 used 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 are used 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 used for described drive
Motivation structure sends described driving instruction, and described control module is additionally operable in described power supply, described conducting probe, described solution to be measured
The primary importance information of described conducting probe is obtained, described control module is additionally operable to when forming path and described earthing module between
Obtain the second place information of described conducting probe, described control when described conducting probe contacts the bottom surface of described solution to be measured
Module is additionally operable to primary importance information according to described conducting probe and second place information obtains the depth of described solution to be measured
Information.
2. experiment high-precision digital automatic water level test system according to claim 1 is 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 are electronic digital display scale, described
One end of the scale of electronic digital display scale is fixedly installed on described installing rack, the digital display unit setting of described electronic digital display scale
On described probe installing component；Described drive mechanism includes lead agency and driver element, described lead agency and described spy
Pin installing component is connected by connecting rope, and described driver element is used for driving described lead agency lifting moving.
3. experiment high-precision digital automatic water level test system according to claim 2 is it is characterised in that described peace
Shelve and be provided with upright guide rail, described lead agency is slide block, described slide block slides on described upright guide rail.
4. experiment high-precision digital automatic water level test system according to claim 3 is 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 used for leading described
When electric probe is in described solution bottom to be measured, add the work to described solution bottom direction to be measured to described probe installing component
Firmly it is relatively fixed with the position of the bottom surface of described solution to be measured with ensureing described conducting probe.
5. experiment high-precision digital automatic water level test system according to claim 4 is it is characterised in that also include
At least one pulley, described spring is extension spring, and one end of described extension spring is fixedly connected with described installing rack, described draws
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.
6. experiment high-precision digital automatic water level test system according to claim 4 is it is characterised in that described bullet
Spring is compression spring, and one end of described compression spring is fixedly connected with described installing rack, the other end of described compression spring and institute
State probe installing component to be fixedly connected.
7. the high-precision digital automatic water level test system of the experiment according to any one of claim 1-6, its feature exists
In described power supply is negative supply.
8. the high-precision digital automatic water level test system of the experiment according to any one of claim 1-6, its feature exists
In described conducting probe is stainless steel probe.
9. the high-precision digital automatic water level test system of the experiment according to any one of claim 1-6, its feature exists
In described conducting probe includes probe body and syringe needle, and described probe body is 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. the high-precision digital automatic water level test system of the experiment according to any one of claim 3-6, its feature exists
In described installing rack is aluminium alloy installing rack.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092252A (en) * | 2016-08-02 | 2016-11-09 | 清华大学 | A kind of experiment high-precision digital automatic water level tests system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092252A (en) * | 2016-08-02 | 2016-11-09 | 清华大学 | A kind of experiment high-precision digital automatic water level tests system |
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