CN107289906A - A kind of differential static level automatic monitoring system and its measuring method - Google Patents
A kind of differential static level automatic monitoring system and its measuring method Download PDFInfo
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- CN107289906A CN107289906A CN201710535283.3A CN201710535283A CN107289906A CN 107289906 A CN107289906 A CN 107289906A CN 201710535283 A CN201710535283 A CN 201710535283A CN 107289906 A CN107289906 A CN 107289906A
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- 230000003068 static effect Effects 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 37
- 238000005259 measurement Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 230000009897 systematic effect Effects 0.000 claims abstract description 4
- 102000010637 Aquaporins Human genes 0.000 claims abstract description 3
- 108010063290 Aquaporins Proteins 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 33
- 239000012530 fluid Substances 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 108091006146 Channels Proteins 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
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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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention relates to a kind of differential static level automatic monitoring system, including collection in worksite device, remote supervision system and hydrostatic level, hydrostatic level is connected with collection in worksite device, remote supervision system control collection in worksite device；Also include some hydrostatic levels, hydrostatic level includes being placed in the first datum mark spirit level of the first datum mark, is placed in the second datum mark spirit level of the second datum mark and is placed in the measurement point spirit level of pilot to be measured, and the first datum mark and the second datum mark relative displacement are fixed；Connected between some hydrostatic levels by communicating pipe, include two passes communicating pipe, the first communicating pipe was liquid aquaporin, and the second communicating pipe was referenmce atomsphere passage；Liquids and gases run through all hydrostatic levels.Hydrostatic level eliminates atmospheric pressure and humidity influence in working environment by measuring the pressure differential of liquid and referenmce atomsphere, and monitoring system eliminates influence of the temperature to water pressure measurements by the setting of two datum marks.
Description
Technical field
The present invention relates to engineering measuring technology field, more particularly to a kind of differential static level automatic monitoring system and survey
Amount method.
Background technology
With the development of the social economy, large-scale construction engineering is continued to bring out, the automation of large-scale construction engineering secure context
Monitoring is paid much attention to.
Static level monitoring system is the precision measurement system for measuring or multi-point relative elevation difference at 2 points, is mainly used in big
Type architectural engineering, includes the monitoring of the multiple spot vertical displacement such as dam, power station, skyscraper, foundation ditch, bridge, railway.
Although traditional static level monitoring system measurement precision is high, the live hydrostatic level volume of presence is larger, make
With the problems such as site requirements is higher, the scope of application is narrower, therefore limit static level monitoring system popularization and application.
New differential static level monitoring system solves the live static level of traditional static level monitoring system
Instrument volume is larger, using area requires higher, but is due to there is air in working environment the problems such as the scope of application is narrower
Pressure, humidity, temperature etc. change, and the density of such as water is just changed with temperature, as shown in table 1 below, so to ensure systematic survey
High accuracy, system must manually perform Precision adjustment after installing, the later stage is also required to manually carry out Precision adjustment, therefore quiet
Power level monitoring system automaticity is not high.
The temperature and the density table of comparisons of the water of table 1
The content of the invention
The present invention is aiming above mentioned problem, and making up the deficiencies in the prior art, there is provided a kind of new differential static(al) water
Quasi- automatic monitoring system, the connecting pipe principle of the system application liquid, the measurement to fluid pressure is converted into by the measurement of higher degree.
The present invention is in order to solve the above problems, and the technical scheme taken is：A kind of differential static level is monitored automatically
System, including collection in worksite device, remote supervision system and hydrostatic level, the hydrostatic level are filled with the collection in worksite
Put connected, the remote supervision system controls the collection in worksite device；Also include some hydrostatic levels, the static level
Instrument includes being placed in the first datum mark spirit level of the first datum mark, is placed in the second datum mark spirit level of the second datum mark and is placed in
The measurement point spirit level of pilot to be measured, first datum mark and the second datum mark relative displacement are fixed；It is described some quiet
Connected between power spirit level by communicating pipe, include two passes the communicating pipe, the first communicating pipe was liquid aquaporin, second
Communicating pipe is referenmce atomsphere passage；The liquid and the gas run through all hydrostatic levels.
Further, the monitoring system also includes the benchmark water tank for providing liquid water and referenmce atomsphere, described with reference to big
Air at water tank position on the basis of gas.
Further, the pressure difference sensor provided with two fluid pressure differentials of measurement inside described hydrostatic level, described
Water is flowed into by the pressure difference sensor first fluid entrance, is exported and flowed out by first fluid, the referenmce atomsphere is by the pressure
Differential sensor second fluid entrance flow into, by second fluid export flow out, the pressure difference sensor internal fluid channels and
Ft connection tube passage is connected.
Further, the hydrostatic level includes housing, and the enclosure interior is fixed with pressure difference sensor, the shell
Body wall is provided with four interfaces corresponding with pressure difference sensor stream socket, and it is quick that four interfaces are all provided with screw thread
Joint, the screw thread snap joint connection pressure difference sensor and ft connection pipe.
Further, the collection in worksite device includes the first power supply for being connected with hydrostatic level and communicated to connect
Mouth, second source and communication interface for being connected with remote supervision system；First power supply and communication interface select direct current
24V power supplys and RS485 communications, the second source and communication interface are from alternating current 220V power supply and RS485 communications or channel radio
Letter.
Further, the first described datum mark and the second datum mark are arranged on the position settled without geology, example
As on massif rock.
The invention also discloses a kind of measuring method of differential static level automatic monitoring system, comprise the following steps,
A takes two non-settlement points being hung down as between the first datum mark and the second datum mark, and two datum marks of measurement surely
Relative displacement h in straight horizontal direction；
B detects the measured value P1, the measured value P2 of the second datum mark spirit level of the first datum mark spirit level；According to P1-P2
=ρ gh, draw the density p of water under the atmospheric temperature；
C reads the measured value P of measurement point spirit level, and measurement point relative first can be drawn according to formula P1-P=ρ gh '
The vertical displacement of datum mark.
Beneficial effect produced by the present invention：The connecting pipe principle of the system application liquid, the measurement of higher degree is converted into pair
The measurement of fluid pressure, static level apparatus measuring value comes for the difference of fluid pressure (pressure containing referenmce atomsphere) and referenmce atomsphere pressure
Eliminate working environment in atmospheric pressure and humidity influence, by 2 datum marks static level apparatus measuring value difference change come
Temperature compensation coefficient in working environment is obtained, by static level apparatus measuring value on 1 datum mark and some measurement point
The difference of static level apparatus measuring value consider further that temperature compensation coefficient be eliminated working environment influence fluid pressure difference,
It is calculated analytically to obtain some measurement point depth displacement and vertical displacement again, above work is all automatic by differential static level
Monitoring system is automatically performed, it is not necessary to manual intervention, realizes real automation.
Brief description of the drawings
Differential hydrostatic level automatic monitoring system attachment structure schematic diagram in Fig. 1 present invention；
Hydrostatic level attachment structure schematic diagram in Fig. 2 present invention；
Hydrostatic level structural representation in Fig. 3 present invention；
1, acquisition module in figure, 2, pressure difference sensor, 201, second interface, 3, housing, 301, cavity zone, 302, convex
The portion of rising, 4, water inlet, 5, air admission hole, 6, power supply and communication interface.
Embodiment
Further details of explanation is done to the present invention with reference to the accompanying drawings and detailed description.
As shown in Figure 1：A kind of differential static level automatic monitoring system, including benchmark water tank, multiple hydrostatic levels,
Communicating pipe, collection in worksite device, remote supervision system.
The reference water case includes closing stainless steel casing, liquid outlet, referenmce atomsphere outlet, and liquid outlet passes through connection
Pipe and hydrostatic level connection, referenmce atomsphere outlet is connected by communicating pipe and hydrostatic level.Hydrostatic level includes liquid
Import, liquid outlet, referenmce atomsphere import and referenmce atomsphere export and pass through communicating pipe and benchmark water tank and other static(al) water
Power supply and communication interface are additionally provided with quasi- instrument connection, hydrostatic level, is connected by the interface and collection in worksite device.
Monitoring system in the present invention will at least have 3 hydrostatic levels, respectively the first datum mark spirit level, the second base
Spirit level and test point spirit level on schedule, the first datum mark spirit level are fixed on close to the benchmark water tank and without geology sedimentation
Position, the position is used as the first datum mark；Second datum mark spirit level is held away from the benchmark water tank and no geology
The position of sedimentation, regard the position as the second datum mark；Other hydrostatic levels are fixed on the 1st hydrostatic level
At tested point between the 2nd hydrostatic level.
Include two connecting pipelines the communicating pipe, the first communicating pipe was the pipeline for the water that circulates, and was used the second communicating pipe
In circulation referenmce atomsphere, and the side wall of two passes seals；Communicating pipe one end connection benchmark water tank, all static(al)s are run through in one end
Spirit level leads to the external world, and leads to the highest liquid level that the communicating pipe mouth of pipe of extraneous one end is highly higher than system, needs to ensure during measurement
Liquid water and referenmce atomsphere fill all hydrostatic level passages.
The AMU8008 collection in worksite device includes by the first power supply and communication interface connecting between hydrostatic level
Connect, be connected between remote supervision system by second source and communication interface, the first power supply and communication interface select direct current 24V
Power supply and RS485 communications, second source and communication interface are from alternating current 220V power supply and RS485 communications or radio communication.
The remote supervision system includes power supply and communication interface between computer system and collection in worksite device, calculates
Machine system is used for data acquisition, storage, calculates analysis, the power supply between man-machine interaction, with collection in worksite device and communication interface
From alternating current 220V power supply and RS485 communications or radio communication.
Remote supervision system is communicated by RS485 or radio communication sends control acquisition instructions and gives collection in worksite device, existing
Field harvester passes through the live first datum mark spirit level of RS485 communication Quick Acquisitions, the second datum mark spirit level, each measurement
The measured value of point spirit level, and remote supervision system is sent back by RS485 communications or radio communication, remote supervision system is to surveying
Value is stored, remote supervision system according to the first datum mark level apparatus measuring value and the second datum mark level apparatus measuring value it
Difference changes to obtain temperature compensation coefficient in working environment, according to the first datum mark static level apparatus measuring value and some survey
The difference of amount point static level apparatus measuring value considers further that temperature compensation coefficient is eliminated the data of working environment influence, then passes through
Cross analysis to calculate to obtain some measurement point depth displacement and vertical displacement, repeat the vertical position that said process obtains each measurement point
Move, and exported by man-machine interface.
It is hydrostatic level structure chart as shown in Figures 2 and 3；Condenser type hydraulic static spirit level, includes differential sensing
Device 2, acquisition module 1 and housing 3, pressure difference sensor 2 and acquisition module 1 are fixedly mounted in the housing 3, differential sensing
Device model HM26G, acquisition module model BYJ500-CPU.A-A；Pressure difference sensor 2 and acquisition module 1 are fixedly mounted on
In the housing 3, the output end of pressure difference sensor 2 connects the input of the acquisition module 1；Pressure difference sensor 2 includes
The first interface flowed into for first fluid water and the second interface 201 flowed into for second fluid referenmce atomsphere；Housing 3 includes
Cavity zone 301 and lug boss 302, the lug boss 302 are provided with water inlet 4 and delivery port, the water inlet 4 and the water outlet
Mouth is connected with the first interface on the sensor；The water inlet 4 and the delivery port connect entering outside housing 3 respectively
Water pipe is connected with outlet pipe；The housing 3 of cavity zone 301 is provided with air admission hole 5 and venthole, air admission hole 5 and venthole difference
It is connected with the external feed stream pipe of housing 3 and escape pipe, the second interface 201 on the sensor is placed in cavity zone 301, and can realize
Interacted with empty intracavity gas；The gas enters sensor internal after flowing into cavity by sensor second interface 201；The design
Avoid and set communicating pipe between air admission hole 5 or venthole and the hole of sensor second, directly realize that gas is interacted by sealing cavity
And air pressure balance.
Pressure type sensor is the pressure difference sensor 2 using measurement by capacitance technology, for measuring fluid pressure (containing ginseng
Examine atmospheric pressure) and referenmce atomsphere pressure difference, the pole plate of sensor one bears the pressure of liquid water, and a pole plate is born with reference to big
The pressure of gas, the pressure of liquid water is that referenmce atomsphere pressure adds water the pressure sum of post in itself, and the design can eliminate atmospheric environment
The influence of feedwater pressure zone, and then ensure the precision of spirit level level gauging.
The protective housing 3 is sealing Stainless Steel Shell 3, and various pieces are all fixed in protective housing 3 described in instrument, are adopted
Acquisition means and pressure difference sensor 2 are arranged at cavity zone 301, and the cavity of cavity zone 301 is interval for sealing.
Water inlet 4 on the housing 3, delivery port is equipped with screw thread snap joint, is easy to and extraneous water inlet pipe or water outlet
Pipe is connected；Screw thread snap joint is equipped with air admission hole 5 and venthole on the housing 3, air inlet pipe and outlet is easily installed
Pipe, the cavity area internal reference air belonged to for the first communicating pipe, entered by entering escape pipe and external connection, water inlet pipe and outlet pipe
Tracheae and escape pipe belonged to for the second communicating pipe.
Power supply and communication interface 6 are also set up on housing 3, the power supply and communication interface 6 include water joint and anti-water power
Cable, the power supply and communication interface 6 and the acquisition module 1 are connected by the water-proof cable, and the water-proof cable is to housing 3
Outer extension and and external connection.
The acquisition module 1 includes signal conditioning circuit, A/D converter circuit, microcontroller, telecommunication circuit, power circuit,
The acquisition module 1 and the pressure difference sensor 2 are connected, and the acquisition module 1 and the power supply and communication interface 6 are connected,
The pressure difference sensor 2 output analog signal is handled by the signal conditioning circuit, then to give the A/D converter circuit complete
Data signal is converted into high-precision AD, the microcontroller gathers the data signal of the A/D converter circuit and carries out a variety of filters
Ripple processing, obtains final measurement data, and being sent to outside collection by the telecommunication circuit and the power supply and communication interface 6 fills
Put, the power circuit completes Power convert work, be that the acquisition module 1 provides working power, be the differential sensing
Device 2 provides working power.
The present invention measuring principle be：
P1-P2=ρ g Δ h, (1)
P1 is the first datum mark level apparatus measuring value, and P2 is the second datum mark level apparatus measuring value, because two datum marks are equal
Non- settlement point, the poor Δ h of vertical displacement of point-to-point transmission can be drawn by measurement, and fluid density ρ is drawn according to formula 1；
P1-P=ρ g Δs h ' (2)
P1 is the first datum mark level apparatus measuring value, and P is the level apparatus measuring value of test point；ρ is fluid density；According to public affairs
The ρ values that formula 1 is drawn, substitute into formula 2 and draw vertical depth displacement of Δ h ' the i.e. test points relative to the first datum mark.
The device eliminates atmospheric pressure and humidity shadow in working environment by measuring the pressure differential of liquid and referenmce atomsphere
Ring, influence of the temperature to water pressure measurements is eliminated by the setting of two datum marks.
Claims (8)
1. a kind of differential static level automatic monitoring system, including collection in worksite device, remote supervision system and static level
Instrument, the hydrostatic level is connected with the collection in worksite device, and the remote supervision system controls the collection in worksite device
Gathered data；It is characterized in that：The hydrostatic level comprises at least 3, and the hydrostatic level includes being placed in the first benchmark
Point the first datum mark spirit level, be placed in the second datum mark spirit level of the second datum mark and be placed in the measurement point water of pilot to be measured
Quasi- instrument, first datum mark and the second datum mark relative displacement are fixed；By even between some hydrostatic levels
Siphunculus is connected, and includes two passes the communicating pipe, and the first communicating pipe was liquid aquaporin, and the second communicating pipe is logical for referenmce atomsphere
Road；
The liquid and the gas run through all hydrostatic levels.
2. differential static level automatic monitoring system according to claim 1, it is characterised in that：The monitoring system is also
Air at water tank position on the basis of benchmark water tank including providing liquid water and referenmce atomsphere, the referenmce atomsphere.
3. differential static level automatic monitoring system according to claim 1, it is characterised in that：Described static level
Pressure difference sensor provided with two fluid pressure differentials of measurement inside instrument, the water is by the pressure difference sensor first interface stream
Enter, the referenmce atomsphere is flowed into by the pressure difference sensor second interface, the pressure difference sensor internal fluid channels and
Ft connection tube passage is connected.
4. differential static level automatic monitoring system according to claim 3, it is characterised in that：The hydrostatic level
Including housing, the enclosure interior is fixed with pressure difference sensor, and the housing includes cavity zone and lug boss, the lug boss
Water inlet and delivery port are provided with, the water inlet and the delivery port are connected with the first interface on the sensor；
The water inlet and the delivery port are connected with the water inlet pipe and outlet pipe outside housing respectively；The cavity zone housing be provided with into
Stomata and venthole, the air admission hole and the venthole are connected with hull outside air inlet pipe and escape pipe respectively, the sensing
Second interface on device is placed in cavity zone, and the gas enters sensor internal after flowing into cavity by sensor second interface；
The cavity zone is sealing space.
5. differential static level automatic monitoring system according to claim 3, it is characterised in that：Described differential biography
Sensor is the pressure difference sensor using capacitance technology.
6. differential static level automatic monitoring system according to claim 1, it is characterised in that：The collection in worksite dress
Put the second electricity including the first power supply and communication interface for being connected with hydrostatic level, for being connected with remote supervision system
Source and communication interface；First power supply and communication interface are communicated from direct current 24V power supplys and RS485, the second source and
Communication interface is from alternating current 220V power supply and RS485 communications or radio communication.
7. differential static level automatic monitoring system according to claim 1, it is characterised in that：The first described benchmark
Point and the second datum mark are arranged on the position settled without geology.
8. a kind of measuring method of the differential static level automatic monitoring system based on described in described in claim 1, it is special
Levy and be：Comprise the following steps,
A takes two non-settlement points as the first datum mark and the second datum mark surely, and measures between two datum marks in vertical water
Square upward relative displacement h；
B detects the measured value P1, the measured value P2 of the second datum mark spirit level of the first datum mark spirit level；According to P1-P2=ρ g
H, draws the density p of water under the atmospheric temperature；
C reads the measured value P of measurement point spirit level, according to formula P1-P=ρ gh '；Measurement point can be drawn with respect to the first base
Vertical displacement on schedule.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710535283.3A CN107289906A (en) | 2017-07-03 | 2017-07-03 | A kind of differential static level automatic monitoring system and its measuring method |
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| CN201710535283.3A CN107289906A (en) | 2017-07-03 | 2017-07-03 | A kind of differential static level automatic monitoring system and its measuring method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458982A (en) * | 2018-11-27 | 2019-03-12 | 山东康威通信技术股份有限公司 | A kind of tunnel subsidence monitoring device and method |
| CN109959363A (en) * | 2019-05-06 | 2019-07-02 | 四川拓绘科技有限公司 | A kind of static level data processing and assessment method |
| CN110285837A (en) * | 2019-07-22 | 2019-09-27 | 湖南省计量检测研究院 | Differential hydrostatic level calibrating installation and calibration method |
| CN111811539A (en) * | 2020-07-14 | 2020-10-23 | 湖南中大检测技术集团有限公司 | Hydraulic hydrostatic level precision test experiment platform |
| CN112747717A (en) * | 2019-10-30 | 2021-05-04 | 航天科工惯性技术有限公司 | Low-error multipoint settlement monitoring method and device |
| CN113834465A (en) * | 2021-11-29 | 2021-12-24 | 江苏东微感知技术有限公司 | Automatic error calibration device and method for building settlement monitoring |
| CN113932765A (en) * | 2021-10-28 | 2022-01-14 | 中大检测(湖南)股份有限公司 | High-precision static level gauge based on temperature compensation and temperature compensation method thereof |
| CN113959403A (en) * | 2021-10-21 | 2022-01-21 | 上海朝辉压力仪器有限公司 | Temperature compensation method of level gauge |
| CN114413840A (en) * | 2021-11-13 | 2022-04-29 | 国网辽宁省电力有限公司沈阳供电公司 | Intelligent Internet of things differential pressure type static level gauge and detection system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718544A (en) * | 2009-11-25 | 2010-06-02 | 南京基泰土木工程仪器有限公司 | Static level monitoring system |
| CN105737796A (en) * | 2016-04-25 | 2016-07-06 | 苏州市建设工程质量检测中心有限公司 | Hydraulic leveling measurement system and measurement method thereof |
| CN205383983U (en) * | 2016-01-21 | 2016-07-13 | 湖南联智桥隧技术有限公司 | Displacement measuring apparatus |
| CN206974416U (en) * | 2017-07-03 | 2018-02-06 | 国电南京自动化股份有限公司 | A kind of differential static level automatic monitoring system |
-
2017
- 2017-07-03 CN CN201710535283.3A patent/CN107289906A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718544A (en) * | 2009-11-25 | 2010-06-02 | 南京基泰土木工程仪器有限公司 | Static level monitoring system |
| CN205383983U (en) * | 2016-01-21 | 2016-07-13 | 湖南联智桥隧技术有限公司 | Displacement measuring apparatus |
| CN105737796A (en) * | 2016-04-25 | 2016-07-06 | 苏州市建设工程质量检测中心有限公司 | Hydraulic leveling measurement system and measurement method thereof |
| CN206974416U (en) * | 2017-07-03 | 2018-02-06 | 国电南京自动化股份有限公司 | A kind of differential static level automatic monitoring system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458982A (en) * | 2018-11-27 | 2019-03-12 | 山东康威通信技术股份有限公司 | A kind of tunnel subsidence monitoring device and method |
| CN109959363A (en) * | 2019-05-06 | 2019-07-02 | 四川拓绘科技有限公司 | A kind of static level data processing and assessment method |
| CN110285837A (en) * | 2019-07-22 | 2019-09-27 | 湖南省计量检测研究院 | Differential hydrostatic level calibrating installation and calibration method |
| CN110285837B (en) * | 2019-07-22 | 2023-10-27 | 湖南省计量检测研究院 | Differential pressure type static level calibrating device and calibrating method |
| CN112747717A (en) * | 2019-10-30 | 2021-05-04 | 航天科工惯性技术有限公司 | Low-error multipoint settlement monitoring method and device |
| CN111811539A (en) * | 2020-07-14 | 2020-10-23 | 湖南中大检测技术集团有限公司 | Hydraulic hydrostatic level precision test experiment platform |
| CN111811539B (en) * | 2020-07-14 | 2022-06-21 | 中大检测(湖南)股份有限公司 | Hydraulic hydrostatic level precision test experiment platform |
| CN113959403A (en) * | 2021-10-21 | 2022-01-21 | 上海朝辉压力仪器有限公司 | Temperature compensation method of level gauge |
| CN113932765A (en) * | 2021-10-28 | 2022-01-14 | 中大检测(湖南)股份有限公司 | High-precision static level gauge based on temperature compensation and temperature compensation method thereof |
| CN113932765B (en) * | 2021-10-28 | 2023-07-25 | 中大检测(湖南)股份有限公司 | High-precision static level based on temperature compensation and temperature compensation method thereof |
| CN114413840A (en) * | 2021-11-13 | 2022-04-29 | 国网辽宁省电力有限公司沈阳供电公司 | Intelligent Internet of things differential pressure type static level gauge and detection system |
| CN113834465A (en) * | 2021-11-29 | 2021-12-24 | 江苏东微感知技术有限公司 | Automatic error calibration device and method for building settlement monitoring |
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Application publication date: 20171024 |
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