CN207553069U - A kind of high-speed railway sedimentation monitoring system based on fiber grating - Google Patents
A kind of high-speed railway sedimentation monitoring system based on fiber grating Download PDFInfo
- Publication number
- CN207553069U CN207553069U CN201721497643.7U CN201721497643U CN207553069U CN 207553069 U CN207553069 U CN 207553069U CN 201721497643 U CN201721497643 U CN 201721497643U CN 207553069 U CN207553069 U CN 207553069U
- Authority
- CN
- China
- Prior art keywords
- grating
- fiber grating
- speed railway
- monitoring system
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 239000000835 fiber Substances 0.000 title claims abstract description 31
- 238000004062 sedimentation Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 10
- 240000005373 Panax quinquefolius Species 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229920006332 epoxy adhesive Polymers 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000007667 floating Methods 0.000 description 8
- 230000003068 static effect Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000002277 temperature effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model belongs to high-speed railway settlement monitoring technology field, discloses a kind of high-speed railway sedimentation monitoring system based on fiber grating, for solving the problems, such as that existing high-speed railway sedimentation monitoring system is low there is precision.The utility model includes at least two fiber grating spirit levels being mounted on monitoring surface, the fiber grating spirit level includes housing, the bottom of the housing is mounted on pedestal, enclosure interior is equipped with elastic corrugated diaphragm, housing is divided into the installation cavity for containing liquid zone and lower part on top by elastic corrugated diaphragm, there are two grating fixed columns for the lower face installation of elastic corrugated diaphragm, pressure measurement grating is installed between two grating fixed columns, thermometric grating is additionally provided in the installation cavity, thermometric grating and pressure measurement grating are connected with data collecting system, the data of acquisition are sent to control centre by the data collecting system.
Description
Technical field
The utility model belongs to high-speed railway settlement monitoring technology field, and in particular to a kind of high speed based on fiber grating
Railway sedimentation monitoring system, for being detected to high-speed railway sedimentation.
Background technology
In recent years, the infrastructure development of high-speed railway is swift and violent, and high speed traveling also brings higher to line construction system
Smooth-going requirement.How in high precision, dynamic, steady in a long-term being deformed to high-speed railway structure sediment have been monitored into mesh in real time
Preceding key technical problem.
The conventional static spirit level used at present is mostly contact type measurement, is reacted with the floating ball height change of liquid level contact
The height change of liquid level, guide rod connect floating ball with SEA LEVEL VARIATION, and sensor is mounted on guide rod changing value being converted to electric signal,
It is sent to collection terminal.There are larger errors, mainly floating ball infiltration, guide rod inclination, temperature and air pressure for this floating ball measurement method
Error caused by caused buoyancy variation.
Conventional static spirit level sensing element master is to be used at present has：Inductance type, type vibration wire, condenser type.Has roadbed
There are the following problems for settlement monitoring equipment：Spoilage is high, precision is relatively poor, long-time stability are poor, needs periodically re-scale,
Easily by electromagnetic interference, connect up the defects of more etc..
Utility model content
The utility model is low there is precision in order to solve the problems, such as existing high-speed railway sedimentation monitoring system, and provides one
High-speed railway sedimentation monitoring system of the kind based on fiber grating, has the characteristics that monitoring accuracy is high, while have in use
It is hardly damaged, stability is high, the characteristics of not needing to re-scale and be not easy by electromagnetic interference, while the utility model is also
Wiring can be reduced.
To solve technical problem, technical solution is used by the utility model：
A kind of high-speed railway sedimentation monitoring system based on fiber grating, which is characterized in that be mounted on including at least two
Fiber grating spirit level on monitoring surface, the fiber grating spirit level include housing, and the bottom of the housing is mounted on pedestal
On, enclosure interior is equipped with elastic corrugated diaphragm, and housing is divided into the installation for containing liquid zone and lower part on top by elastic corrugated diaphragm
Chamber, the lower face installation of elastic corrugated diaphragm are equipped with pressure measurement grating there are two grating fixed column between two grating fixed columns,
Thermometric grating is additionally provided in the installation cavity, thermometric grating and pressure measurement grating are connected with data collecting system, and the data are adopted
The data of acquisition are sent to control centre by collecting system；Screw rod is connected with to be mounted on monitoring surface the pedestal after the adjustment
Bottom plate；The epimere of the Sheng liquid zone of adjacent fiber grating spirit level is connected through snorkel, wherein stomata is offered on a snorkel,
The purpose of venthole is to maintain the constant of the liquid level pressure above in each monitoring point housing, adjacent fiber grating spirit level
The hypomere for containing liquid zone is connected through fluid-through tube.
The adjusting screw rod is equipped with adjusting nut, and air-bubble level is equipped on the pedestal.
The thermometric grating is encapsulated in capillary.
The tail optical fiber of the thermometric grating and pressure measurement grating is connect after being welded together through optical fiber with data collecting system.
The elastic corrugated diaphragm is connect with case weld.
The pressure measurement grating is attached to by Wear Characteristics of Epoxy Adhesive between two grating fixed columns after applying prestressing force.
Water or anti-icing fluid are contained in the Sheng liquid zone, cost can be reduced using water when environment temperature is at 0 DEG C or more,
Anti-icing fluid is used when extremely frigid zones are monitored.
Compared with prior art, the utility model has the advantages that：
Relative settlement between each monitoring point of the utility model causes the liquid level for containing liquid zone to change, at this time elastic wave
Amount of deflection deformation occurs therewith for line diaphragm, and the relative position between grating fixed column changes with elastic corrugated diaphragm deformation, makes
It obtains pressure measurement grating to strain, pressure measurement grating wavelength is finally caused to change, by measuring the variation of pressure measurement grating wavelength just
It can live and contain the situation of change of liquid zone liquid level, while environment temperature is obtained by thermometric grating, it is proposed that temperature effect causes
Pressure measurement grating wavelength variation, so as to fulfill temperature and sedimentation while measure.The utility model has compared with prior art
The characteristics of system structure is simple, performance is stablized, improves the precision of measurement, while also is able to reduce wiring.The utility model is not
The sensing element in conventional static level system is reused, using optical fiber grating sensing element, there is signal to decay small, anti-interference
Ability is strong, high temperature resistant, corrosion-resistant, high sensitivity, it is easy of integration the advantages that.
The utility model does not use the floating ball used in traditional static liquid level and uses based on grating light
The static liquid level of fine technology effectively avoids floating ball infiltration, guide rod tilts, buoyancy becomes caused by the variation of temperature and air pressure
Error caused by change effectively raises the monitoring accuracy of works vertical displacement.
The utility model is transmitted to control centre by data collecting system simultaneously, can realize that long-term unmanned automation is remote
Journey monitors.
Description of the drawings
Fig. 1 is the structure diagram of an embodiment of the utility model
It is marked in figure：1st, housing, 2, contain liquid zone, 3, elastic corrugated diaphragm, 4, grating fixed column, 5, pressure measurement grating, 6, light
Fibre, 7, thermometric grating, 8, snorkel, 9, fluid-through tube, 10, air-bubble level, 11, adjusting nut, 12, adjusting screw rod, 13, expansion
Bolt, 14, pedestal, 15, bottom plate, 16, monitoring surface, 17, data collecting system, 18, control centre.
Specific embodiment
With reference to embodiment, the utility model will be further described, and described embodiment is only that this practicality is new
Type part of the embodiment is not whole embodiments.Based on the embodiment in the utility model, the ordinary skill people of this field
Other embodiments used that member is obtained without making creative work belong to the protection model of the utility model
It encloses.
With reference to attached drawing, the high-speed railway sedimentation monitoring system based on fiber grating of the utility model, including at least two
Fiber grating spirit level on monitoring surface, the fiber grating spirit level include housing 1, and the bottom of the housing 1 is pacified
On pedestal 14, elastic corrugated diaphragm 3 is installed inside housing 1, housing 1 is divided the Sheng liquid for top by elastic corrugated diaphragm 3
Area 2 and the installation cavity of lower part, there are two grating fixed column 4, two grating fixed columns 4 for the lower face installation of elastic corrugated diaphragm 3
Between pressure measurement grating 5 is installed, thermometric grating 7 is additionally provided in the installation cavity, thermometric grating 7 and pressure measurement grating 5 are connected with
The data of acquisition are sent to control centre 18 by data collecting system 17, the data collecting system 17, wherein being used to adopt
The data collecting system 17 of collection thermometric grating and pressure measurement raster data belongs to prior art products, and those skilled in the art can
It is appreciated and understood that, details are not described herein, and data collecting system can transfer data to control centre 18 by modes such as GPRS,
Control centre 18 also belongs to the prior art, and details are not described herein；Screw rod 12 is connected with to be mounted on the pedestal 14 after the adjustment
Bottom plate 15 on monitoring surface 16, bottom plate 15 are connect by expansion bolt 13 with monitoring surface 16；Adjacent fiber grating level
The epimere of the Sheng liquid zone 2 of instrument is connected through snorkel 8, wherein offering stomata on a snorkel 8, the purpose of venthole is to maintain respectively
Liquid level pressure above in a monitoring point housing it is constant, the hypomere of the Sheng liquid zone 2 of adjacent fiber grating spirit level is through logical liquid
Pipe 9 connects.
Relative settlement between each monitoring point of the utility model causes the liquid level for containing liquid zone to change, at this time elastic wave
Amount of deflection deformation occurs therewith for line diaphragm, and the relative position between grating fixed column changes with elastic corrugated diaphragm deformation, makes
It obtains pressure measurement grating to strain, pressure measurement grating wavelength is finally caused to change, by measuring the variation of pressure measurement grating wavelength just
It can live and contain the situation of change of liquid zone liquid level, while environment temperature is obtained by thermometric grating, it is proposed that temperature effect causes
Pressure measurement grating wavelength variation, so as to fulfill temperature and sedimentation while measure.The utility model has compared with prior art
The characteristics of system structure is simple, performance is stablized, improves the precision of measurement, while also is able to reduce wiring.The utility model is not
The sensing element in conventional static level system is reused, using optical fiber grating sensing element, there is signal to decay small, anti-interference
Ability is strong, high temperature resistant, corrosion-resistant, high sensitivity, it is easy of integration the advantages that.
The utility model does not use the floating ball used in traditional static liquid level and uses based on grating light
The static liquid level of fine technology effectively avoids floating ball infiltration, guide rod tilts, buoyancy becomes caused by the variation of temperature and air pressure
Error caused by change effectively raises the monitoring accuracy of works vertical displacement.
The utility model is transmitted to control centre by data collecting system simultaneously, can realize that long-term unmanned automation is remote
Journey monitors.
As a kind of mode of selection of the utility model, the adjusting screw rod 12 is equipped with adjusting nut 11, the pedestal
Air-bubble level 10 is installed, during installation, by observing air-bubble level, by adjusting adjusting nut 11 on 14
So that pedestal is in a horizontality.
As a kind of preferred mode of the utility model, the thermometric grating 7 is encapsulated in capillary, passes through thermometric grating
7 obtain environment temperature, it is proposed that the variation of pressure measurement grating wavelength caused by temperature effect, while so as to fulfill temperature and sedimentation
It measures..
As a kind of preferred mode of the utility model, the tail optical fiber of the thermometric grating 7 and pressure measurement grating 5 is welded together
It is connect by optical fiber 6 with data collecting system.
As a kind of mode of selection of the utility model, the elastic corrugated diaphragm 3 is welded to connect with housing 1.
The pressure measurement grating 5 applies two grating fixed columns 4 are attached to by Wear Characteristics of Epoxy Adhesive after prestressing force between so that
Pressure measurement grating is in hanging tight state.
Water or anti-icing fluid are contained in the Sheng liquid zone 2, uses water that can reduce into when environment temperature is at 0 DEG C or more
This, anti-icing fluid is used when extremely frigid zones are monitored.
For the utility model during making, waterproof sealing processing is carried out in joint.
The monitoring method of the utility model is：
A., the fiber grating of relatively stable point (datum mark) and each point to be measured is installed by leveling nut and air-bubble level
Spirit level is installed along on opposed flattened bottom plate.
B. each grating fibers spirit level, liquid feeding de-soak, connection ventilation are connected with three-way connection using transparent PVC hose net
Pipe.
C. all optical-fiber connection data acquisition systems, are connected by modes such as GRPS with communication center.
D. measuring principle record preliminary design state reading：, λiFor the i-th moment pressure measurement grating reading, λ0For initial time pressure measurement light
Grid
Reading, TiFor the i-th moment thermometric grating reading, T0For initial time thermometric grating reading.K is transducer sensitivity.
ΔHiFor any measuring point in the i-th moment container liquid level relative to initial time height change；
△Hi=K × [(λi-λ0)-(Ti–T0)]
It can obtain vertical displacement Δ h of the i-th moment any measuring point relative to datum marki。
△hi=△ HSurvey i-△HQuasi- i。
Claims (7)
1. a kind of high-speed railway sedimentation monitoring system based on fiber grating, which is characterized in that be mounted on prison including at least two
Fiber grating spirit level on survey face, the fiber grating spirit level include housing (1), and the bottom of the housing (1) is mounted on
On pedestal (14), elastic corrugated diaphragm (3) is installed inside housing (1), housing (1) is divided into top by elastic corrugated diaphragm (3)
Sheng liquid zone (2) and lower part installation cavity, the lower face installation of elastic corrugated diaphragm (3) is there are two grating fixed column (4), two
Pressure measurement grating (5) between grating fixed column (4) is installed, thermometric grating (7), thermometric grating are additionally provided in the installation cavity
(7) and pressure measurement grating (5) is connected with data collecting system (17), and the data of acquisition are sent to by the data collecting system (17)
Control centre (18)；Screw rod (12) is connected with the bottom plate (15) for being mounted on monitoring surface to the pedestal (14) after the adjustment；Phase
The epimere of the Sheng liquid zone (2) of adjacent fiber grating spirit level is connected through snorkel (8), wherein offering gas on a snorkel (8)
Hole, the hypomere of the Sheng liquid zone (2) of adjacent fiber grating spirit level are connected through fluid-through tube (9).
2. the high-speed railway sedimentation monitoring system according to claim 1 based on fiber grating, which is characterized in that the tune
Section screw rod (12) is equipped with adjusting nut (11), and air-bubble level (10) is equipped on the pedestal (14).
3. the high-speed railway sedimentation monitoring system according to claim 1 based on fiber grating, which is characterized in that the survey
Warm grating (7) is encapsulated in capillary.
4. the high-speed railway sedimentation monitoring system according to claim 1 based on fiber grating, which is characterized in that the survey
The tail optical fiber of warm grating (7) and pressure measurement grating (5) is connect after being welded together through optical fiber with data collecting system.
5. the high-speed railway sedimentation monitoring system according to claim 1 based on fiber grating, which is characterized in that the bullet
Property convoluted diaphragm (3) is welded to connect with housing (1).
6. the high-speed railway sedimentation monitoring system according to claim 1 based on fiber grating, which is characterized in that the survey
Press polish grid (5) are attached to by Wear Characteristics of Epoxy Adhesive between two grating fixed columns after applying prestressing force.
7. the high-speed railway sedimentation monitoring system according to claim 1 based on fiber grating, which is characterized in that the Sheng
Water or anti-icing fluid are contained in liquid zone (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721497643.7U CN207553069U (en) | 2017-11-09 | 2017-11-09 | A kind of high-speed railway sedimentation monitoring system based on fiber grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721497643.7U CN207553069U (en) | 2017-11-09 | 2017-11-09 | A kind of high-speed railway sedimentation monitoring system based on fiber grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207553069U true CN207553069U (en) | 2018-06-29 |
Family
ID=62681248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721497643.7U Expired - Fee Related CN207553069U (en) | 2017-11-09 | 2017-11-09 | A kind of high-speed railway sedimentation monitoring system based on fiber grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207553069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700457A (en) * | 2017-11-09 | 2018-02-16 | 成都西南交大加成科技发展有限公司 | A kind of high-speed railway sedimentation monitoring system based on fiber grating |
-
2017
- 2017-11-09 CN CN201721497643.7U patent/CN207553069U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700457A (en) * | 2017-11-09 | 2018-02-16 | 成都西南交大加成科技发展有限公司 | A kind of high-speed railway sedimentation monitoring system based on fiber grating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107700457A (en) | A kind of high-speed railway sedimentation monitoring system based on fiber grating | |
| CN101718544B (en) | static level monitoring system | |
| CN201110756Y (en) | Apparatus for measuring continuous vertical deflection / displacement | |
| CN110631549A (en) | Roadbed settlement monitoring device based on fiber bragg grating | |
| CN101446486A (en) | Method for measuring vertical displacement by hydraulic pressure and temperature and device thereof | |
| CN203745170U (en) | Bridge static flexibility monitoring device | |
| CN105043346A (en) | High-speed railway settlement monitoring sensor based on fiber Bragg grating | |
| CN202119509U (en) | Liquidometer suitable for underground pond with large area | |
| CN108519065A (en) | Differential optical fiber Bragg grating tilt angle sensor and application method thereof | |
| CN103591932A (en) | Electronic observation method for building settlement deformation and observation instrument | |
| CN105021165A (en) | Static levelling instrument system having automatic water supplementing and draining functions | |
| CN105387968A (en) | Optical fiber cladding surface Bragg grating temperature self-compensating pressure sensor | |
| CN207553069U (en) | A kind of high-speed railway sedimentation monitoring system based on fiber grating | |
| CN104634410A (en) | Method for detecting capacity of oil tank with fiber bragg gratings online | |
| CN201392265Y (en) | Bridge deflection intelligent monitoring device | |
| CN103063382B (en) | A kind of amount of deflection self-operated measuring unit and measuring method thereof | |
| CN104132714A (en) | Automatic ultrasonic water level monitoring device | |
| CN201083513Y (en) | Deep water level high precision sensor device | |
| CN203259150U (en) | Circular elastic metal diaphragm based wide-range hydraulic subsidence observer | |
| CN105737797B (en) | Vertical deformation detection method and device | |
| CN204730826U (en) | There is the static level instrument system of automatic makeup drain function | |
| CN204757973U (en) | High -speed railway settlement monitoring sensor based on fiber grating | |
| CN202994404U (en) | Automatic deflection measurement apparatus | |
| JPH09304126A (en) | Ring-type multistage rock-bed change measuring apparatus | |
| CN205861046U (en) | Photoelectric hydrostatic level telemetric coordinator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200428 Address after: 610000 No. 2, No. 1, building 13, 8 star road, Chengdu, Sichuan, Jinniu District Patentee after: Su Qian Address before: 610000 the middle of the West Milky way in the hi-tech West District of Chengdu, Sichuan Patentee before: CHENGDU, SOUTHWEST JIAOTONG UNIVERSITY ADDITION TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 |