CN107167212A - The reciprocal accurate limnimeter of detection type - Google Patents
The reciprocal accurate limnimeter of detection type Download PDFInfo
- Publication number
- CN107167212A CN107167212A CN201710546652.9A CN201710546652A CN107167212A CN 107167212 A CN107167212 A CN 107167212A CN 201710546652 A CN201710546652 A CN 201710546652A CN 107167212 A CN107167212 A CN 107167212A
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- CN
- China
- Prior art keywords
- controller
- limnimeter
- encoder
- measurement line
- sounding bob
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Classifications
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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
- G01F23/24—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 by measuring variations of resistance of resistors due to contact with conductor fluid
- G01F23/245—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 by measuring variations of resistance of resistors due to contact with conductor fluid with a probe moved by an auxiliary power, e.g. meter, to follow automatically the level
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention disclose the accurate limnimeter of reciprocal detection type, including stepper motor, encoder and the wire spool and measurement line wheel that are vertically arranged, and stepper motor is connected with coiling dish axle, and encoder is connected with measuring wire wheel axis；Directive wheel is provided between wire spool and measurement line wheel, wire spool is wound with detection steel wire, and detection steel wire bypasses directive wheel and measurement line wheel from wire spool successively, and connects sounding bob, and sounding bob is sagging vertically by measurement line wheel periphery；Limnimeter also includes controller, display, resets inductive switch and enter water electrode, and the rotation of controller Driving Stepping Motor rises or falls sounding bob；Enter water electrode to be placed in water to be measured, be engaged with sounding bob and collectively form exciting electrode pair, realize the seizure to the water surface to be measured；The lifting distance of sounding bob is fed back to controller by encoder, calculates water level elevation by controller, and result of calculation is sent into display and shown.
Description
Technical field
The present invention relates to water conservancy measurement technology field, specifically a kind of accurate limnimeter of reciprocal detection type.
Background technology
In model test and prototype measurement engineering, limnimeter is all one of most often applied instrument and equipment, due to
It is different to the precision of limnimeter and the requirement of range with prototype measurement engineering in model test, it is usually the case that with
Be may not apply in the limnimeter of model test in prototype measurement engineering, this undoubtedly add labour cost and equipment into
This.
The content of the invention
It is an object of the invention to provide the accurate limnimeter of reciprocal detection type, the limnimeter utilizes range and precision independence
Principle, it is possible to achieve the water level detecting of large range high precision, model test can be applied to simultaneously and water conservancy prototype is seen
Survey in engineering.
The technical solution adopted for the present invention to solve the technical problems is：
The accurate limnimeter of reciprocal detection type, including stepper motor, encoder and the wire spool and measurement line wheel, step that are vertically arranged
Stepper motor is connected with coiling dish axle, and encoder is connected with measurement wire wheel axis；Directive wheel is provided between wire spool and measurement line wheel, around
Drum is wound with detection steel wire, and detection steel wire bypasses directive wheel and measurement line wheel from wire spool successively, and the outer end of detection steel wire connects
Sounding bob is connected to, sounding bob is sagging vertically by measurement line wheel periphery；The limnimeter also includes controller, display, resets sense
Inductive switch is with entering water electrode, and the encoder, clearing inductive switch are with entering the input interface that water electrode is connected to controller；Control
Device Driving Stepping Motor rotation processed, makes wire spool folding and unfolding detect steel wire, rises or falls sounding bob, and encoder follows measurement
Line wheel synchronous rotary；Reset inductive switch with sounding bob formation to coordinate, for being zeroed out encoder, it is determined that measurement is initial
Position；Enter water electrode to be placed in water to be measured, enter water electrode and be engaged with sounding bob to collectively form exciting electrode pair, work as spy
When plummet touches the water surface to be measured, exciting electrode realizes the seizure to the water surface to be measured to conducting；Encoder is by sounding bob
Lifting distance feeds back to controller, calculates water level elevation by controller, and result of calculation is sent into display and shown
Show.
Further, vertical detection steel wire both sides are respectively equipped with guide wheel, and detection steel wire is between two guide wheels
Gap is passed through.
Further, the controller is also associated with communication module.
The beneficial effects of the invention are as follows be converted into the recognizable angular displacement of encoder, then pass through by the displacement of the lines of sounding bob
Water level elevation is calculated, this limnimeter uses photoelectric coding automatic deploying and retracting cable operation principle, and its measurement accuracy is high, stability
It is good, without temperature drift and when drift influence, reach the requirement of precision and range independence, can simultaneously applied to model test with
And in water conservancy prototype measurement engineering；And can be transmitted by communication module, networking, realize water level online in real time automation prison
Survey.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is the schematic diagram of the present invention.
Embodiment
As shown in figure 1, the present invention provides reciprocal detection type accurate limnimeter, including stepper motor 1, encoder 2 and perpendicular
The wire spool 3 directly set is connected with measurement line wheel 4, stepper motor 1 with the axle of wire spool 3, and encoder 2 is connected with the measurement axle of line wheel 4；
Directive wheel 5 is provided between wire spool 3 and measurement line wheel 4, directive wheel 5 can set two or more to constitute directive wheel group；Wire spool 3
Detection steel wire 6 is wound with, detection steel wire 6 bypasses directive wheel group and measurement line wheel 4 from wire spool 3, detects the outer end of steel wire 6 successively
Sounding bob 7 is connected with, sounding bob 7 is sagging vertically by the periphery of measurement line wheel 4；Detection steel wire 6 can use Φ 0.6mm multiply stainless steels
Steel wire rope, material is 1Cr18Ni9Ti, with good anti-corrosion property energy；As preferred, measure line wheel and use copper V type grooves
Pulley, wheel rim is designed to V-groove, and detection steel wire is embedded in groove, it is ensured that do not produce sliding in maximum stage luffing.Vertical
Detection steel wire 6 both sides are respectively equipped with guide wheel 12, and detection steel wire 6 is passed through from the gap between two guide wheels 12.
The limnimeter also includes controller 8, display 9, resets inductive switch 10 and enter water electrode 11, the encoder
2nd, reset inductive switch 10 and enter the input interface that water electrode 11 is connected to controller 8；The Driving Stepping Motor 1 of controller 8 revolves
Turn, make the folding and unfolding of wire spool 3 detect steel wire 6, rise or fall sounding bob 7, and encoder 2 follows the measurement synchronous rotary of line wheel 4；
Reset inductive switch 10 with the formation of sounding bob 7 to coordinate, for being zeroed out encoder 2, it is determined that the initial position of measurement；Enter water
Electrode 11 is placed in water to be measured, enters water electrode 2 and be engaged with sounding bob 7 to collectively form exciting electrode pair, when sounding bob 7
When touching the water surface to be measured, exciting electrode realizes the seizure to the water surface to be measured to conducting；Encoder 2 is by the liter of sounding bob 7
Drop distance feeds back to controller 8, calculates water level elevation by controller 8, and result of calculation is sent into display 9 and shown
Show.
In use, controller 8 controls stepper motor to rotate first, sounding bob 7 is moved to clearing position and be zeroed out；So
Afterwards, decline sounding bob 7, at the same time encoder 2 is started counting up, when sounding bob 7 touches the water surface, exciting electrode is to leading
Logical, after the water surface is caught in, calculating obtains water level elevation, completes one-shot measurement action.Actuarial is carried out by formula Hg=Ha-Hc,
In formula：Hg is water level elevation, and unit is mm；
Ha is this limnimeter Installation Elevation, and unit is mm；
Hc be this limnimeter Installation Elevation to the distance of the water surface, unit is mm.
Hc is to decline directly to measure by sounding bob 7, by formula Hc=（Xn/1000）* 2 π R are calculated, in formula
Xn rotates the line number recorded by encoder；R is the radius of measurement line wheel 4, and unit is mm.
The line number of encoder 2 can use 1000P/R, encoder and the cooperation of measurement line wheel 4, can differentiate this limnimeter
Rate reaches 0.1mm.
In actual application, this limnimeter can have three kinds of measurement patterns：
First, single measurement：I.e. limnimeter is received after acquisition, completes one-shot measurement.
2nd, circulation measurement：I.e. limnimeter is received after acquisition, and with single measurement formula, circulation measurement is multiple.
3rd, reciprocal measurement：I.e. limnimeter is received after acquisition, and sounding bob is completed after single measurement, leaves the water surface, so
Decline measurement again afterwards, and so on, that is, sounding bob is back and forth measured within the time of setting near the water surface.
As preferred, controller 8 is also associated with communication module 14, and communication module 14 can be Modbus etc., realize group
Net, carries out data transmission, and realizes the online automatic monitoring in real time of water level.By button 13 can to the mode of operation of this limnimeter,
The parameters such as instrument networking numbering, Installation Elevation, traffic rate, sampling period are configured.
The above described is only a preferred embodiment of the present invention, not making any formal limitation to the present invention；Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible variations and modification to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, every content without departing from technical solution of the present invention, the technical spirit according to the present invention is done to above example
Any simple modification, equivalent substitution, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.
Claims (3)
1. the accurate limnimeter of reciprocal detection type, it is characterised in that including stepper motor, encoder and the wire spool being vertically arranged
With measurement line wheel, stepper motor is connected with coiling dish axle, and encoder is connected with measurement wire wheel axis；Between wire spool and measurement line wheel
Provided with directive wheel, wire spool is wound with detection steel wire, and detection steel wire bypasses directive wheel and measurement line wheel, detection from wire spool successively
The outer end of steel wire is connected with sounding bob, and sounding bob is sagging vertically by measurement line wheel periphery；The limnimeter also includes controller, shown
Show device, reset inductive switch and enter water electrode, the encoder, clearing inductive switch are connected to controller with entering water electrode
Input interface；Controller Driving Stepping Motor rotates, and makes wire spool folding and unfolding detect steel wire, rises or falls sounding bob, and compiles
Code device follows measurement line wheel synchronous rotary；Reset inductive switch with sounding bob formation to coordinate, for being zeroed out encoder, really
The initial position of location survey amount；Enter water electrode to be placed in water to be measured, enter water electrode be engaged with sounding bob collectively form it is sharp
Electrode pair is encouraged, when sounding bob touches the water surface to be measured, exciting electrode realizes the seizure to the water surface to be measured to conducting；Compile
The lifting distance of sounding bob is fed back to controller by code device, calculates water level elevation by controller, and result of calculation is sent
Shown to display.
2. the accurate limnimeter of reciprocal detection type according to claim 1, it is characterised in that vertical detection steel wire both sides point
Not She You guide wheel, detection steel wire passed through from the gap between two guide wheels.
3. the accurate limnimeter of reciprocal detection type according to claim 1, it is characterised in that the controller is also associated with leading to
Interrogate module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546652.9A CN107167212A (en) | 2017-07-06 | 2017-07-06 | The reciprocal accurate limnimeter of detection type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546652.9A CN107167212A (en) | 2017-07-06 | 2017-07-06 | The reciprocal accurate limnimeter of detection type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167212A true CN107167212A (en) | 2017-09-15 |
Family
ID=59823073
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710546652.9A Pending CN107167212A (en) | 2017-07-06 | 2017-07-06 | The reciprocal accurate limnimeter of detection type |
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| CN (1) | CN107167212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206539A (en) * | 2019-04-19 | 2019-09-06 | 山东科技大学 | A kind of extra-deep hole drilling intelligent water level monitoring device |
| CN110440871A (en) * | 2019-08-07 | 2019-11-12 | 深圳市建设工程质量检测中心 | Underground water level measurement method, apparatus and computer equipment based on potentiometry |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069104U (en) * | 1989-07-08 | 1991-01-09 | 幸琳 | Digit model level measuring apparatus by measuring osmotic pressure |
| CN1776376A (en) * | 2005-12-01 | 2006-05-24 | 武汉大学 | Conducting liquid level measuring device |
| CN101464177A (en) * | 2009-01-12 | 2009-06-24 | 郑贵林 | Liquid level detection type self-calibration high-precision water gauge |
| CN101476915A (en) * | 2008-11-04 | 2009-07-08 | 水利部交通部电力工业部南京水利科学研究院 | Detection type water level measuring method and detection type water level meter |
| CN203940904U (en) * | 2014-04-17 | 2014-11-12 | 水利部南京水利水文自动化研究所 | Tracking mode slim pipe diameter water-level gauge |
| CN103017859B (en) * | 2012-12-06 | 2015-07-08 | 广西大学 | Contact type high-temperature metal meltwater liquid level height measuring device |
| CN106197607A (en) * | 2016-08-19 | 2016-12-07 | 成都理工大学 | A kind of device and method of accurate measurement level of ground water |
-
2017
- 2017-07-06 CN CN201710546652.9A patent/CN107167212A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069104U (en) * | 1989-07-08 | 1991-01-09 | 幸琳 | Digit model level measuring apparatus by measuring osmotic pressure |
| CN1776376A (en) * | 2005-12-01 | 2006-05-24 | 武汉大学 | Conducting liquid level measuring device |
| CN101476915A (en) * | 2008-11-04 | 2009-07-08 | 水利部交通部电力工业部南京水利科学研究院 | Detection type water level measuring method and detection type water level meter |
| CN101464177A (en) * | 2009-01-12 | 2009-06-24 | 郑贵林 | Liquid level detection type self-calibration high-precision water gauge |
| CN103017859B (en) * | 2012-12-06 | 2015-07-08 | 广西大学 | Contact type high-temperature metal meltwater liquid level height measuring device |
| CN203940904U (en) * | 2014-04-17 | 2014-11-12 | 水利部南京水利水文自动化研究所 | Tracking mode slim pipe diameter water-level gauge |
| CN106197607A (en) * | 2016-08-19 | 2016-12-07 | 成都理工大学 | A kind of device and method of accurate measurement level of ground water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206539A (en) * | 2019-04-19 | 2019-09-06 | 山东科技大学 | A kind of extra-deep hole drilling intelligent water level monitoring device |
| CN110440871A (en) * | 2019-08-07 | 2019-11-12 | 深圳市建设工程质量检测中心 | Underground water level measurement method, apparatus and computer equipment based on potentiometry |
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Application publication date: 20170915 |