CN109932021A - Trailing type laser water-level gauge - Google Patents
Trailing type laser water-level gauge Download PDFInfo
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- CN109932021A CN109932021A CN201910273973.5A CN201910273973A CN109932021A CN 109932021 A CN109932021 A CN 109932021A CN 201910273973 A CN201910273973 A CN 201910273973A CN 109932021 A CN109932021 A CN 109932021A
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- winding roller
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- level gauge
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Abstract
The present invention relates to a kind of trailing type laser water-level gauges, it is characterized by: being equipped with main support (6) on chassis (9), winding roller (5) and servo motor (7) are installed on main support (6), cable (3) are wound on winding roller (5), one end of cable (3) is fixed on winding roller (5), servo motor (7) is connected by the first signal wire (15) and controller (8), controls servo motor (7) folding and unfolding cable (3)；Cable (3) passes through pulley (11), and pulley (11) and counter (10) connection, counter (10) are connected by second signal line (16) and controller (8)；The other end of cable (3) connects laser displacement gauge (1), and laser displacement gauge (1) is inserted into piezometric well (2), and reflector buoy (14) are arranged in piezometric well (2).The present invention realizes relay measurement and precise measurement；Non-cpntact measurement is realized simultaneously；The device can also be used in the occasion for having similar relay measurement request.
Description
Technical field
The invention belongs to field of measuring technique, the occasion that laser measurement cannot be directly carried out to liquid level can be applied to,
It can be applied to object and frequently conjugate the operating condition for needing to carry out relay measurement, be particularly applied in Earth-rock Dam Seepage Line measurement process
Piezometric well level measuring.
Background technique
Currently, there are many kinds of method in level measuring, for example, float-type, ultrasonic type, mechanical, magnetic-type, bubble type,
Contact conduction type, radar type, pressure sensor formula, laser type etc..In these water level measurement methods, it is usually used in saturation and surveys pressure
The method of pipe level measuring has pressure sensor method and artificial observation method, and remote auto measurement may be implemented in pressure sensor, and
Manual rule needs staff to measure to scene, and other methods are then due to the smaller equal a variety of causes shadow in pressure-measuring pipe aperture
Ring the measurement that cannot be used for piezometric level.Throw-in type pressure sensor is most common method, but due to siltation, microorganism
Etc. reasons, service life is shorter, will be distorted or fail within general 2 years or so, so that dam engineering be caused to lose in security monitoring,
To cause security risk.Simultaneously because the method that throw-in type pressure sensor is converted using electric signal, it can be due to various
Reason causes data wander and is distorted.The restorative procedure of use is exactly more emat sensor, this has resulted in the discontinuity of measurement,
Simultaneously because submerged sensor cost is higher, frequent replacement causes very big waste.
Since the well casing diameter of saturation piezometric well is smaller, generally less than 50mm, and most of well casing is due to drilling technology
Limitation, verticality are all bad, it may appear that local buckling, the measurement laser that laser displacement gauge issues can not shine directly into the water surface
On, it can not achieve direct measurement.
Therefore, in the measurement of Earth-rock Dam Seepage Line piezometric level, urgent need want a kind of precision is high, the service life is long, can be realized from
The level measurement device of dynamicization real-time measurement.The present invention is exactly to be required and carried out according to this, it is therefore an objective to which substitution is adopted extensively at present
Throw-in type pressure sensor.It also can be applied to other similar field simultaneously.
Summary of the invention
It, can be in limited curva it is an object of the present invention to provide a kind of device that can be realized level measuring in small diameter tube
Laser measurement is realized in pipe.Realize that technical solution used by the invention device is such that a kind of trailing type laser water-level gauge,
It is characterized by: the water-level gauge is equipped with chassis, chassis is fixed on the well head cover board of piezometric well, and main support is equipped on chassis,
Winding roller and servo motor be installed on main support, the coiling roll shaft of the motor shaft of servo motor and winding roller using coaxial or
It is connected using chain, servo motor drives winding roller rotation, is wound with cable on winding roller, one end of cable is fixed on winding roller
On, servo motor is connected by the first signal wire with controller, and servo motor folding and unfolding cable is controlled；Cable passes through pulley, pulley
It is mounted on chassis with secondary support, pulley is connected with counter, and counter is connected by second signal line with controller；Cable
The other end connects laser displacement gauge, and laser displacement gauge is inserted into piezometric well, and reflector buoy is arranged in the piezometric well.Described
Controller is programmable controller, is connect respectively by the first signal wire and second signal line with servo motor, counter.It is patrolled
The relationship of collecting is: numerical value measured by counter is scaled laser displacement gauge to the distance of well head, and laser displacement gauge measurement reflection is floating
The distance for marking laser displacement gauge, is transmitted to after controller calculates and issues the control servo motor work of industry control signal, and controller is same
When connected with External cable, the data measured are transmitted to control centre.The laser displacement gauge is connected on cable, cable sheet
Body is both hanger rope and the tool for measuring length, and cable is used to measure upper length；Laser displacement gauge measures lower length, shape
It is measured at relay.Overcome pipeline local buckling, laser be unable to direct projection to the water surface difficulty.The laser water-level gauge is used equipped with protective cover
To close.Protect all of above equipment.
Laser displacement gauge obtains apart from water surface certain distance H1, this distance by laser measurement, laser range finder distance
The distance H2 of well head, by counter measures, sum of the two H3 is distance of the water surface to well head, is then subtracted with the elevation of well head
Removing H3 is water level elevation (water level).
When water level rises, when the H1 of laser rangefinder measurement is less than setting numerical value L1, controller issues signal control
Servo motor drives winding roller take-up, increase laser displacement gauge, when H1 is greater than setting numerical value L2, that is, stops rising；Work as water
When the decline of position, when the numerical value H1 of laser displacement gauge measurement is greater than setting numerical value L3, controller notifies servo motor to drive winding roller
Start unwrapping wire, when H1 is less than setting numerical value L4, that is, stops unwrapping wire.
For the present invention since the distance of laser range finder to the water surface is gone up and down with the variation of water level, laser displacement gauge measures position
The distance of meter to the water surface is moved, counter measures laser range finder to the distance of well head by cable, realizes relay measurement.Due to
The two measurement accuracy is higher, and precise measurement may be implemented；Simultaneously because instrument does not contact water, non-cpntact measurement is realized；Machine
Tool powered part is mature technology, and the basic no-load of servo motor, therefore stability is fine.The device, which can also be used in, to be had
The occasion of similar relay measurement request.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
In figure, 1, laser displacement gauge；2, piezometric well；3, cable；4, well head cover board；5, winding roller；6, main support；7, servo electricity
Machine；8, controller；9, chassis；10, counter；11, pulley；12, secondary support；13, protective cover；14 reflector buoys, 15, signal
Line.
Specific embodiment:
Referring to attached drawing, a kind of trailing type laser water-level gauge, it is characterised in that: the water-level gauge is equipped with chassis 9, and chassis 9 is fixed on survey
On the well head cover board 4 of kill-job 2, it is equipped with main support 6 on chassis 9, winding roller 5 and servo motor 7 are installed on main support 6,
The coiling roll shaft of the motor shaft of servo motor 7 and winding roller 5 using coaxial or be connected using chain, the driving of servo motor 7 around
Line roller 5 rotates, and is wound with cable 3 on winding roller 5, and one end of cable 3 is fixed on winding roller 5, and servo motor 7 passes through the first signal
Line 15 and controller 8 connect, and control 7 folding and unfolding cable 3 of servo motor；Cable 3 passes through pulley 11, and pulley 11 is installed with secondary support 12
On chassis 9, pulley 11 and counter 10 are connected, and counter 10 is connected by second signal line 16 and controller 8；Cable 3
The other end connects laser displacement gauge 1, and laser displacement gauge 1 is inserted into piezometric well 2, and reflector buoy 14 is arranged in the piezometric well 2.
The controller 8 is programmable controller, passes through the first signal wire 15 and second signal line 16 and servo motor 7, meter respectively
Number device 10 connects.Its logical relation is: numerical value measured by counter 10 is scaled laser displacement gauge to the distance of well head, laser
Displacement meter 1 measures the distance that reflector buoy 14 arrives laser displacement gauge, is transmitted to sending industry control signal control after controller 8 calculates and watches
The work of motor 7 is taken, controller 8 is connected with External cable simultaneously, and the data measured are transmitted to control centre.The laser displacement
Meter 1 is connected on cable 3, and cable itself is both hanger rope and the tool for measuring length, and cable 3 is used to measure upper length；Swash
Light displacement meter 1 measures lower length, forms relay measurement.Overcome pipeline local buckling, laser be unable to direct projection to the water surface difficulty.
The laser water-level gauge is equipped with protective cover 13 and is used to close.Protect all of above equipment.
In use, first installing well head cover board 4 at the top of piezometric well 2, the chassis 9 of equipment is fixed on well head cover board 4,
After 1 connection cables 3 of laser displacement gauge pass through pulley 11, it is placed in piezometric well 2.Initial position, that is, laser displacement gauge is measured first
1 arrives the distance of piezometric well mouth to the distance and laser displacement gauge 1 of the water surface.When cable 3 passes through 11 retractable of pulley, in frictional force
Under the action of pulley 11 will rotate around center axis, cable and pulley are without relative motion.Counter 10 will be turned using the rotation of pulley
Dynamic parameter, which reaches controller 8, can measure the length of drawing cable；Cable is wound on winding roller 5, and servo motor 7 is in controller 8
Effect is lower to realize positive and negative rotation, drives winding roller positive and negative rotation, realizes the retractable of cable 3.Laser sensor 1 issues laser and arrives
The distance of reflector buoy 14, measurement laser sensor to the water surface (measures reflector buoy reflecting surface to the water surface in advance by test
Distance).Protective cover 13 is finally installed.
When piezometric well water level rises, numerical value (water surface to the laser range finder) H1 that laser rangefinder 1 measures is less than pre-
If when numerical value L1, controller 8 issues signal and controls 8 take-up of servo motor, increase laser range finder 1, when H1 is greater than present count
When value L2, that is, stop rising；When the water level descends, when the numerical value H1 that laser range finder 1 measures is greater than default value L3, controller
8 notice servo motors 7 start unwrapping wire, when H1 is less than default value L4, that is, stop unwrapping wire.
The advantages of device, is measured by the relay of laser displacement gauge and counter, is realized in the swan-neck of small diameter tube
Laser measurement, realizes non-cpntact measurement, and the service life of equipment is long, stability is good, reasonable price, can substitute big at present
Water level in the measurement of dam saturation in piezometric well.Also it can be applied to the occasion of similar requirement.
Claims (4)
1. a kind of trailing type laser water-level gauge, it is characterised in that: the water-level gauge is equipped with chassis (9), and chassis (9) are fixed on piezometric well
(2) on well head cover board (4), main support (6) is equipped on chassis (9), winding roller (5) is installed on main support (6) and is watched
It takes motor (7), the motor shaft of servo motor (7) using coaxially or using chain being connected, is watched with the coiling roll shaft of winding roller (5)
Motor (7) driving winding roller (5) rotation is taken, is wound with cable (3) on winding roller (5), one end of cable (3) is fixed on winding roller
(5) on, servo motor (7) is connected by the first signal wire (15) and controller (8), controls servo motor (7) folding and unfolding cable
(3)；Cable (3) passes through pulley (11), and pulley (11) is mounted on chassis (9) with secondary support (12), pulley (11) and counter
(10) it connects, counter (10) is connected by second signal line (16) and controller (8)；The other end of cable (3) connects laser
Displacement meter (1), laser displacement gauge (1) are inserted into piezometric well (2), and reflector buoy (14) are arranged in the piezometric well (2).
2. trailing type laser water-level gauge described in accordance with the claim 1, it is characterised in that: the controller (8) is programmable
Controller is connect by the first signal wire (15) and second signal line (16) with servo motor (7), counter (10) respectively.
3. trailing type laser water-level gauge described in accordance with the claim 1, it is characterised in that: the laser displacement gauge (1) is connected to
On cable (3), cable itself is both hanger rope and the tool for measuring length, and cable (3) is used to measure upper length；Laser position
It moves meter (1) and measures lower length, form relay measurement.
4. trailing type laser water-level gauge described in accordance with the claim 1, it is characterised in that: the laser water-level gauge is equipped with protective cover
(13) it is used to close, protects all of above equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273973.5A CN109932021A (en) | 2019-04-08 | 2019-04-08 | Trailing type laser water-level gauge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273973.5A CN109932021A (en) | 2019-04-08 | 2019-04-08 | Trailing type laser water-level gauge |
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| Publication Number | Publication Date |
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| CN109932021A true CN109932021A (en) | 2019-06-25 |
Family
ID=66989450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910273973.5A Pending CN109932021A (en) | 2019-04-08 | 2019-04-08 | Trailing type laser water-level gauge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537043A (en) * | 2020-06-15 | 2020-08-14 | 张大鸿 | Following type magnetostrictive water level gauge for hydraulic engineering pressure measuring pipe |
| CN112922585A (en) * | 2021-02-26 | 2021-06-08 | 华东交通大学理工学院 | Automatic monitoring method for liquid level height of drainage well in subway construction |
| CN114441007A (en) * | 2022-02-04 | 2022-05-06 | 武汉新烽光电股份有限公司 | Following type laser water level gauge |
| CN115127642A (en) * | 2022-08-31 | 2022-09-30 | 潍坊恒锣机械有限公司 | Underground water level observation device for hydrological engineering geological exploration |
Citations (7)
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| EP0180357A1 (en) * | 1984-10-26 | 1986-05-07 | The British Petroleum Company p.l.c. | Liquid level indicator |
| US4702009A (en) * | 1986-04-07 | 1987-10-27 | The Dow Chemical Company | Device for measuring the level of a material stored in a tank |
| CN202486925U (en) * | 2012-02-24 | 2012-10-10 | 陕西睿海丽君环境科技有限公司 | Full-automatic water surface floating oil monitoring and warning device |
| CN205449221U (en) * | 2015-12-15 | 2016-08-10 | 南昌航空大学 | Water level floats pressure formula optic fibre control appearance |
| CN205843757U (en) * | 2016-07-25 | 2016-12-28 | 石家庄市农林科学研究院 | A kind of water level water-depth measurement device |
| CN208366423U (en) * | 2018-05-28 | 2019-01-11 | 中交第一公路工程局有限公司 | A kind of closed underground water location probe of novel self-control |
| CN209605904U (en) * | 2019-04-08 | 2019-11-08 | 张大鸿 | Trailing type laser water-level gauge |
-
2019
- 2019-04-08 CN CN201910273973.5A patent/CN109932021A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180357A1 (en) * | 1984-10-26 | 1986-05-07 | The British Petroleum Company p.l.c. | Liquid level indicator |
| US4702009A (en) * | 1986-04-07 | 1987-10-27 | The Dow Chemical Company | Device for measuring the level of a material stored in a tank |
| CN202486925U (en) * | 2012-02-24 | 2012-10-10 | 陕西睿海丽君环境科技有限公司 | Full-automatic water surface floating oil monitoring and warning device |
| CN205449221U (en) * | 2015-12-15 | 2016-08-10 | 南昌航空大学 | Water level floats pressure formula optic fibre control appearance |
| CN205843757U (en) * | 2016-07-25 | 2016-12-28 | 石家庄市农林科学研究院 | A kind of water level water-depth measurement device |
| CN208366423U (en) * | 2018-05-28 | 2019-01-11 | 中交第一公路工程局有限公司 | A kind of closed underground water location probe of novel self-control |
| CN209605904U (en) * | 2019-04-08 | 2019-11-08 | 张大鸿 | Trailing type laser water-level gauge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537043A (en) * | 2020-06-15 | 2020-08-14 | 张大鸿 | Following type magnetostrictive water level gauge for hydraulic engineering pressure measuring pipe |
| CN112922585A (en) * | 2021-02-26 | 2021-06-08 | 华东交通大学理工学院 | Automatic monitoring method for liquid level height of drainage well in subway construction |
| CN114441007A (en) * | 2022-02-04 | 2022-05-06 | 武汉新烽光电股份有限公司 | Following type laser water level gauge |
| CN115127642A (en) * | 2022-08-31 | 2022-09-30 | 潍坊恒锣机械有限公司 | Underground water level observation device for hydrological engineering geological exploration |
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