CN104976987B - One kind overcomes hydrostatic level stiction to mention high-precision device and method - Google Patents
One kind overcomes hydrostatic level stiction to mention high-precision device and method Download PDFInfo
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- CN104976987B CN104976987B CN201510402872.5A CN201510402872A CN104976987B CN 104976987 B CN104976987 B CN 104976987B CN 201510402872 A CN201510402872 A CN 201510402872A CN 104976987 B CN104976987 B CN 104976987B
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- float
- connecting rod
- storing barrel
- power source
- stiction
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Manufacturing & Machinery (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses one kind, and hydrostatic level stiction to be overcome to mention high-precision device and method, including power source component, power source component is liquid level, float, connecting rod or liquid storing barrel driving assembly, drives between float (3) and the inner wall of liquid storing barrel (2) or overcomes stiction to generate relative motion between connecting rod (5) and displacement meter (1).The present invention has installed power source additional on hydrostatic level, pass through power source drive liquid level, float, connecting rod or liquid storing barrel, overcome the stiction between float and the inner wall of liquid storing barrel and generates relative motion, change liquid level in float real embodiment bucket, improve hydrostatic level accuracy of measurement (precision is up to 0.02mm or so).Power source drive liquid level, float, connecting rod or liquid storing barrel, connecting rod can be made to move up, be able to solve the stuck problem that may occur between connecting rod and displacement meter, make float activity, liquid level changes in real embodiment bucket, improves hydrostatic level accuracy of measurement.
Description
Technical field
The present invention relates to a kind of methods for reducing hydrostatic level measurement error, overcome static level more particularly to one kind
Instrument stiction mentions high-precision device and method.
Background technique
Static liquid level is the precision instrument for measuring two o'clock or multi-point relative settlement, is mainly used for tunnel, dam, core
The vertical displacements such as power station, skyscraper, foundation pit, bridge, subway and inclined monitoring.Static liquid level is typically mounted at tested
On the contour survey pier of object or on testee wall contour, in use, lead between the liquid storing barrel of multiple hydrostatic levels
Fluid-through tube connection is crossed, float position synchronizes variation with the variation of liquid level, and the liquid level of each liquid storing barrel is measured by being displaced, by
This can measure the liquid level variable quantity of each hydrostatic level.
Gap very little between the float outer wall and liquid storing barrel inner wall of common hydrostatic level on the market at present, float with
It is easily in contact between liquid storing barrel, generates biggish stiction, the liquid even if not being in contact, in float and liquid storing barrel
Between can also have stiction.Although the value of this stiction is less, when liquid level varies less in liquid storing barrel, float
Upward power is smaller, when the upward power of float is less than the stiction, will be unable to overcome the stiction.In this case, quiet
When power level works, even if the liquid level in liquid storing barrel is changed, if the stiction is not achieved in the power that float floats
Size, this will lead to liquid level in change but float is stuck motionless, directly result in the measurement error of hydrostatic level.In addition to float
It may be generated between liquid storing barrel outside biggish stiction, connecting rod is in active procedure it can also happen that offset, connecting rod
Stuck phenomenon may occur between displacement meter, this also will directly hinder the normal floating or sinking of float.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind, and hydrostatic level stiction to be overcome to improve
The device and method of precision, installs power source additional on hydrostatic level, passes through power source drive liquid level, float, connecting rod or storage
Liquid bucket moves up, so that between float and the inner wall of liquid storing barrel or overcoming stiction between connecting rod and displacement meter and generating phase
To movement, changes liquid level in float real embodiment bucket, improve hydrostatic level accuracy of measurement.
The purpose of the present invention is achieved through the following technical solutions: one kind overcomes hydrostatic level stiction to improve
The device of precision, the hydrostatic level include displacement meter, liquid storing barrel and float, and the bottom of liquid storing barrel is connected with fluid-through tube,
Float is mounted on displacement meter by connecting rod, and the device further includes power source component, and power source component is floating for driving
Stiction is overcome to generate relative motion between son and the inner wall of liquid storing barrel or between connecting rod and displacement meter.
The power source component is liquid level driving assembly, and liquid level driving assembly is to be set to subsurface liquid in liquid storing barrel
Body pump or blender.Blender includes blade and stirring motor, and blade is fixedly installed in the output of stirring motor by agitating shaft
On axis.
The power source component is liquid level driving assembly, and liquid level driving assembly is to be set to subsurface electricity in liquid storing barrel
Magnetic vibrator.
The power source component is liquid level driving assembly, and liquid level driving assembly includes L-type pipe and air pump, the bottom of L-type pipe
Portion is connected with liquid storing barrel, and the top of L-type pipe is equipped with opening, and air pump is seal-installed on the opening in L-type tube top portion.The gas
Pump is aspiration pump or inflator pump.
The power source component be liquid level driving assembly, liquid level driving assembly be the liquid pump being set in fluid-through tube,
Blender or electromagnetic vibrator.
The power source component is float driving assembly, and float driving assembly is cylinder, and cylinder includes cylinder body and piston
Bar, piston rod can touch float and generate impact force to float when stretching out.Cylinder can only be arranged one, pacify vertically upward
Mounted in the center of the bottom wall of liquid storing barrel, piston rod compresses center (and axis where center of gravity) position of float when stretching out.
Also two cylinders can be set, be respectively perpendicular and be mounted in displacement meter mounting base downwards, two cylinders push down on simultaneously when work
Float is pressed, float can be made smoothly to move up.Further, in order to make float more stablely dynamic, two can be widened as best one can
The distance between the piston rod of a cylinder.
The power source component is float driving assembly, and float driving assembly is the electromagnetic vibration being fixedly mounted on float
Dynamic device, electromagnetic vibrator can be adjacent in float bottom center.
The power source component be connecting rod driving assembly, connecting rod driving assembly be cylinder, cylinder include cylinder body and
Piston rod, piston rod can touch connecting rod and generate impact force to connecting rod when stretching out.
The power source component is liquid storing barrel driving assembly, and liquid storing barrel driving assembly is external or built-in vibration source,
Vibration source drives liquid storing barrel body vibration, promotes to overcome stiction between float and the inner wall of liquid storing barrel and generate opposite fortune
It is dynamic.
One kind overcomes hydrostatic level stiction to propose high-precision method, installs power source group additional on hydrostatic level
Part, by power source Component driver liquid level, float, connecting rod or liquid storing barrel, so that overcoming between float and the inner wall of liquid storing barrel
Stiction and generate relative motion.
The beneficial effects of the present invention are:
1) power source has been installed additional on hydrostatic level, by power source drive liquid level, float, connecting rod or liquid storing barrel,
Float can be made to move up, overcome the stiction between float and the inner wall of liquid storing barrel and generate relative motion, keep float true
Entity, which shows liquid level in bucket, to be changed, and is improved hydrostatic level accuracy of measurement (precision is up to 0.02mm or so).
2) power source drive liquid level, float, connecting rod or liquid storing barrel can be such that connecting rod moves up, overcome connecting rod with
Stiction between displacement meter is able to solve the stuck problem that may occur between connecting rod and displacement meter, keeps float movable
Get up, liquid level changes in real embodiment bucket, improves hydrostatic level accuracy of measurement.
3) vibration source can be provided by electromagnetic vibrator, have the characteristics that small in size, at low cost, operation is low in energy consumption.
4) liquid level driving assembly uses liquid pump, blender or air pump, and structure is simple, and design is reasonable, and cost of implementation is low.
5) driving of float or connecting rod is realized with cylinder, structure is simple, and stability is good, and cost of implementation is low.
6) cylinder of float driving assembly can only be arranged one, be mounted on the centre bit of the bottom wall of liquid storing barrel vertically upward
It sets, piston rod compresses center (and axis where center of gravity) position of float when stretching out, it is not in more to block that driving effect is steady
Tighter problem.
7) cylinder of float driving assembly also can be set two, is respectively perpendicular and is mounted in displacement meter mounting base downwards,
Two cylinders push down on float simultaneously when work, float can be made smoothly to move up.The work of two cylinders is widened as best one can
The distance between stopper rod can allow float more stablely dynamic.
Detailed description of the invention
The structural schematic diagram that Fig. 1 is liquid level driving assembly of the present invention when being liquid pump；
The structural schematic diagram that Fig. 2 is liquid level driving assembly of the present invention when being blender；
The structural schematic diagram that Fig. 3 is liquid level driving assembly of the present invention when being air pump；
The structural schematic diagram that Fig. 4 is float driving assembly of the present invention when being single cylinder；
The structural schematic diagram that Fig. 5 is float driving assembly of the present invention when being two cylinders；
The structural schematic diagram that Fig. 6 is connecting rod driving assembly of the present invention when being single cylinder；
The structural schematic diagram that Fig. 7 is connecting rod driving assembly of the present invention when being two cylinders；
In figure, 1- displacement meter, 2- liquid storing barrel, 3- float, 4- fluid-through tube, 5- connecting rod, 6- liquid pump, 7- blade, 8- stirred
Mix motor, 9- L-type pipe, 10- air pump, 11- cylinder body, 12- piston rod, 13- crossbeam.
Specific embodiment
Technical solution of the present invention, but protection of the invention are described in further detail in the following with reference to the drawings and specific embodiments
Range is not limited to as described below.
One kind overcomes hydrostatic level stiction to mention high-precision device, the hydrostatic level include displacement meter 1,
Liquid storing barrel 2 and float 3, displacement meter are fixedly mounted on the top of liquid storing barrel 2 by displacement meter mounting base, the bottom of liquid storing barrel 2 with
Fluid-through tube 4 is connected, and float 3 is mounted on displacement meter 1 by connecting rod 5.The device further includes power source component, power source
Component is opposite for driving between float 3 and the inner wall of liquid storing barrel 2 or overcoming between connecting rod and displacement meter stiction to generate
Movement.
[embodiment 1] as shown in Figure 1, the power source component is liquid level driving assembly, liquid level driving assembly is setting
In liquid pump 6 subsurface in liquid storing barrel 2.Liquid pump 6, which is powered on, can drive the liquid in liquid storing barrel 2 to roll, right
Float 3 generates biggish impact force, and float 3 is made to overcome stiction and up and down, after about 3 float moves up,
Closing liquid pump 6, float 3 quickly reaches dynamic balancing, reaches the later float 3 of dynamic balancing and accurately embodies liquid level in bucket.
[embodiment 2] as shown in Fig. 2, the power source component is liquid level driving assembly, liquid level driving assembly is setting
In blender subsurface in liquid storing barrel 2, blender includes blade 7 and stirring motor 8, and blade 7 is fixedly mounted by agitating shaft
In on the output shaft of stirring motor 8.Stirring motor 8 is powered on, and blade 7 drives the liquid in liquid storing barrel 2 to roll, to floating
Son 3 generates biggish impact force, so that float 3 is overcome stiction and up and down, after about 3 float moves up, pass
Stirring motor 8 is closed, float 3 quickly reaches dynamic balancing, reaches the later float 3 of dynamic balancing and accurately embodies liquid level in bucket.
In addition, liquid level driving assembly, which can also use, is set to subsurface electromagnetic vibrator in liquid storing barrel 2.
[embodiment 3] as shown in figure 3, the power source component is liquid level driving assembly, liquid level driving assembly includes L-type
The bottom of pipe 9 and air pump 10, L-type pipe 9 is connected with liquid storing barrel 2, and the top of L-type pipe 9 is equipped with opening, and air pump 10 is seal-installed on
The opening at 9 top of L-type pipe.
Air pump 10 can be aspiration pump or inflator pump, also or inflate, the quick alternately better effect of pumping.Air pump 10
It is powered and continuous alternate pumping is carried out to L-type pipe 9 and is inflated, the principle based on linker can drive the liquid level in liquid storing barrel 2
Occur to generate biggish impact force to float 3 compared with macrorelief, float 3 is made to overcome stiction and up and down, float 3
After moving up up and down, air pump 10 is closed, float 3 quickly reaches dynamic balancing, reaches the later float 3 of dynamic balancing and accurately embodies bucket
Interior liquid level.
Power source component described in [embodiment 4] is liquid level driving assembly, and liquid level driving assembly is to be set in fluid-through tube 4
Liquid pump 6, blender or electromagnetic vibrator.
[embodiment 5] as shown in figure 4, the power source component is float driving assembly, float driving assembly is cylinder,
Cylinder includes cylinder body 11 and piston rod 12, and piston rod 12 can touch float 3 and generate impact force to float 3 when stretching out.Make
Float 3 overcomes stiction and up and down, after about 3 float moves up, closes cylinder, float 3 quickly reaches dynamic
Balance reaches the later float 3 of dynamic balancing and accurately embodies liquid level in bucket.
Cylinder is only arranged one, is mounted on the center of 2 bottom wall of liquid storing barrel vertically upward, and piston rod 12 compresses when stretching out
To axis where the center of float 3 and center of gravity, so driving effect is very steady, it is not in the problem for the more blocking the more tight.
[embodiment 6] as shown in figure 5, the power source component is float driving assembly, float driving assembly is cylinder,
Cylinder includes cylinder body 11 and piston rod 12, and piston rod 12 can touch float 3 and generate impact force to float 3 when stretching out.Make
Float 3 overcomes stiction and up and down, after about 3 float moves up, closes cylinder, float 3 quickly reaches dynamic
Balance reaches the later float 3 of dynamic balancing and accurately embodies liquid level in bucket.
Two cylinders are set, is respectively perpendicular and is mounted in displacement meter mounting base downwards, two cylinders are downward simultaneously when work
Float 3 is pushed, moves up float 3 smoothly.Further, it in order to allow float 3 to drive more stable, can widen as best one can
The distance between piston rod 12 of two cylinders.
Float driving assembly can also can be pasted using the electromagnetic vibrator being fixedly mounted on float 3, electromagnetic vibrator
Tightly in the center of 3 bottom of float.
[embodiment 7] as shown in fig. 6, the power source component is connecting rod driving assembly, connecting rod driving assembly is
Single cylinder, cylinder include cylinder body 11 and piston rod 12, and piston rod 12 can touch connecting rod 5 and to connecting rod 5 when stretching out
Generate impact force.The activity of connecting rod 5 drives the activity of float 3, so that float 3 is overcome stiction and up and down, floats
After about 3 son moves up, cylinder is closed, float 3 quickly reaches dynamic balancing, reaches the later float 3 of dynamic balancing and accurately embodies
Liquid level in bucket.
[embodiment 8] as shown in fig. 7, the power source component is connecting rod driving assembly, connecting rod driving assembly is
Two cylinders are respectively perpendicular and are mounted in displacement meter mounting base downwards, and one is fixedly mounted between the piston rod 12 of two cylinders
Crossbeam 13, middle part and 5 phase of connecting rod of crossbeam 13 are fixed.The piston rod 12 of two cylinders pushes down on crossbeam simultaneously when work
13, crossbeam 13 drives connecting rod 5 to move downward, and overcomes the stiction between connecting rod 5 and displacement meter 1, is able to solve connection
The stuck problem that may occur between bar 5 and displacement meter 1.
Power source component described in [embodiment 9] is liquid storing barrel driving assembly, and liquid storing barrel driving assembly is external or built-in
Vibration source, vibration source herein can also be used electromagnetic vibrator, and vibration source drives 2 body vibration of liquid storing barrel, promote float 3 with
Stiction is overcome between the inner wall of liquid storing barrel 2 and generates relative motion.After about 3 float moves up, vibration source is closed, is floated
Son 3 quickly reaches dynamic balancing, reaches the later float 3 of dynamic balancing and accurately embodies liquid level in bucket.
One kind overcomes hydrostatic level stiction to propose high-precision method, installs power source group additional on hydrostatic level
Part, by power source Component driver liquid level, float 3, connecting rod 5 or liquid storing barrel 2, so that between float 3 and the inner wall of liquid storing barrel 2
Or stiction is overcome between connecting rod 5 and displacement meter 1 and generates relative motion.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (1)
1. one kind overcomes hydrostatic level stiction to mention high-precision device, the hydrostatic level include displacement meter (1),
The bottom of liquid storing barrel (2) and float (3), liquid storing barrel (2) is connected with fluid-through tube (4), and float (3) is mounted on by connecting rod (5)
On displacement meter (1), the device further includes power source component, and power source component is used to drive float (3) and liquid storing barrel (2)
Stiction is overcome to generate relative motion between inner wall or between connecting rod (5) and displacement meter (1)；The power source component is
Connecting rod driving assembly, connecting rod driving assembly are cylinder, and cylinder includes cylinder body (11) and piston rod (12), and piston rod (12) is stretched
Connecting rod (5) can be touched when out and impact force is generated to connecting rod (5)；The connecting rod driving assembly can make to connect
Bar (5) moves up, and overcomes the stiction between connecting rod and displacement meter, makes float activity, liquid level in real embodiment bucket
Variation improves hydrostatic level accuracy of measurement, it is characterised in that:
The power source component can also be that float driving assembly, float driving assembly are cylinder, and cylinder includes cylinder body (11)
With piston rod (12), piston rod (12) can touch float (3) and generate impact force to float (3) when stretching out；The gas
Cylinder can be one or two；
Mounting means using a cylinder is: a cylinder is mounted on the center of the bottom wall of liquid storing barrel vertically upward, living
Stopper rod compresses the center of float when stretching out；
Mounting means using two cylinders is: two cylinders, which are respectively perpendicular, to be mounted in displacement meter mounting base downwards, when work
Two cylinders push down on float simultaneously, float can be made smoothly to move up；Widen as best one can two cylinders piston rod it
Between distance, float can be allowed dynamic it is more stable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510402872.5A CN104976987B (en) | 2015-07-10 | 2015-07-10 | One kind overcomes hydrostatic level stiction to mention high-precision device and method |
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| CN201510402872.5A CN104976987B (en) | 2015-07-10 | 2015-07-10 | One kind overcomes hydrostatic level stiction to mention high-precision device and method |
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| CN104976987B true CN104976987B (en) | 2019-01-15 |
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| CN107990915B (en) * | 2018-01-22 | 2023-12-05 | 杭州鲁尔物联科技有限公司 | Static level tester and debugging method |
| CN114964425A (en) * | 2022-06-23 | 2022-08-30 | 西安西热锅炉环保工程有限公司 | A reliable magnetic flap liquid level gauge system and its working method |
| CN117110526B (en) * | 2023-10-24 | 2024-02-20 | 北京牡丹联友环保科技股份有限公司 | Phosphoric acid titration device |
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