CN208238997U - A kind of spring fiber bragg grating pressure sensor - Google Patents
A kind of spring fiber bragg grating pressure sensor Download PDFInfo
- Publication number
- CN208238997U CN208238997U CN201820913455.6U CN201820913455U CN208238997U CN 208238997 U CN208238997 U CN 208238997U CN 201820913455 U CN201820913455 U CN 201820913455U CN 208238997 U CN208238997 U CN 208238997U
- Authority
- CN
- China
- Prior art keywords
- spring
- plate
- fixed
- pressure sensor
- fixed plate
- 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.)
- Active
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a kind of spring fiber bragg grating pressure sensors, it include: pedestal, fixed plate, fiber grating, clamping piece, spring, upper junction plate and lower connecting plate, wherein, pedestal is the pedestal of the upper and lower opening surrounded by steel plate, fixed plate level is fixed in pedestal, fiber grating is affixed on the bottom of fixed plate and is fixed by clamping piece and fixed plate, upper junction plate and lower connecting plate are individually fixed in two free ends of the spring, and respectively with the axially vertical setting of spring, lower connecting plate is fixed on the top of fixed plate in parallel.The spring fiber bragg grating pressure sensor is structurally reasonable; it is easy to use; can not only on-line real time monitoring structure the construction time and operation phase bearing capacity the case where, additionally it is possible to preferable protective effect is played to fiber grating, extends the service life of the spring fiber bragg grating pressure sensor.
Description
Technical field
The utility model belongs to sensory field, a kind of spring fiber bragg grating pressure sensor is specifically provided, for supervising
Measuring pressure.
Background technique
Fiber grating sensing technology is the optical fiber sensing technology of new generation to grow up the nineties in last century.In recent years,
Application study receives domestic and international researcher and the very big concern of engineers and technicians.
Fiber bragg grating pressure sensor can be embedded to the damage situations that monitoring of structures is removed in road and bridge, therefore it is required that light
Fine grating pressure sensor to have have good wearability, the stability of reliability and structure.However, construction site general environment
Compare badly, fiber bragg grating pressure sensor application limitation in actual engineering is strong, and fiber grating is easily damaged.
Therefore, one kind is developed to be suitble in engineering become people using non-damageable fiber bragg grating pressure sensor again
Urgent problem to be solved.
Utility model content
In consideration of it, the purpose of this utility model is to provide a kind of spring fiber bragg grating pressure sensor, it is existing to solve
There is the problems such as fiber-optic grating sensor application limitation is poor, easy to damage.
Technical solution provided by the utility model is: a kind of spring fiber bragg grating pressure sensor, comprising: pedestal is consolidated
Fixed board, fiber grating, clamping piece, spring, upper junction plate and lower connecting plate, wherein pedestal is the upper and lower opening surrounded by steel plate
Pedestal, fixed plate level is fixed in pedestal, and fiber grating is affixed on the bottom of fixed plate and solid by clamping piece and fixed plate
Fixed, upper junction plate and lower connecting plate are individually fixed in two free ends of the spring, and set respectively with the axially vertical of spring
It sets, lower connecting plate is fixed on the top of fixed plate in parallel.
It is preferred that the bottom of fiber grating and fixed plate is cementing.
Further preferably, the clamping piece includes two intermediate plates for being respectively arranged at fiber grating end, the intermediate plate with
Fixed plate is bolted.
Further preferably, fixed plate and tube chamber welds with base.
Further preferably, the lower connecting plate top is fixedly installed the guide cylinder with spring cooperation.
Further preferably, the lower connecting plate is bolted with fixed plate.
Spring fiber bragg grating pressure sensor provided by the utility model can not only on-line real time monitoring structure applying
The case where duration and operation phase bearing capacity, additionally it is possible to preferable protective effect be played to fiber grating, extend the spring optical fiber
The service life of grating pressure sensor.
Detailed description of the invention
With reference to the accompanying drawing and embodiment is described in further detail the utility model:
Fig. 1 is the structural schematic diagram of spring fiber bragg grating pressure sensor provided by the utility model；
Fig. 2 is the bottom view of Fig. 1.
Specific embodiment
The utility model is further explained below in conjunction with specific embodiment, but limitation is not originally practical
It is novel.
As shown in Figure 1 and Figure 2, the utility model provides a kind of spring fiber bragg grating pressure sensor, comprising: pedestal
1, fixed plate 2, fiber grating 3, clamping piece 4, spring 5, upper junction plate 6 and lower connecting plate 7, wherein pedestal 1 is surrounded by steel plate
Upper and lower opening pedestal, 2 level of fixed plate is fixed in pedestal 1, and lower surface is flat and smooth, it is preferable that fixed plate 2 and pedestal 1
Welding, fiber grating 3 are affixed on the bottom of fixed plate 2 and are fixed by clamping piece 4 and fixed plate 2, it is preferable that the clamping piece 4 wraps
Two intermediate plates 41 for being respectively arranged at 3 end of fiber grating are included, the intermediate plate 41 is bolted with fixed plate 2, upper connection
Plate 6 and lower connecting plate 7 are individually fixed in two free ends of the spring 5, and respectively with the axially vertical setting of spring 5, under
Connecting plate 7 is fixed on the top of fixed plate 2 in parallel, it is preferable that the lower connecting plate 7 is bolted with fixed plate 2.
The spring fiber bragg grating pressure sensor, can not only on-line real time monitoring structure held in construction time and operation phase
The case where carrying power, additionally it is possible to preferable protective effect be played to fiber grating, extend the service life of the pressure sensor.
The application method of the spring fiber bragg grating pressure sensor is as follows: the sensor is placed in position to be monitored
It sets, when the upper junction plate on spring top bears pressure, spring can be transferred force on the fiber grating of fixed plate, make optical fiber light
Certain variation occurs for the wavelength of grid, so that corresponding strain variation is generated, it can be with the big of indirect monitoring structural bearing capacity with this
It is small, wherein by setting fixed plate and spring, can to play a protective role to fiber grating, while the spring can also be improved
The sensitivity of fiber bragg grating pressure sensor.
In order to guarantee coming into full contact with for fiber grating and fixed plate, strain problem of transmission is avoided to generate shadow to measurement result
It rings, as the improvement of technical solution, fiber grating 3 and the bottom of fixed plate 2 are cementing.
As the improvement of technical solution, 7 top of lower connecting plate is fixedly installed the guide cylinder with the spring 5 cooperation
(not shown).
Specific embodiment of the present utility model is write according to progressive mode, and each embodiment party is highlighted
The difference of case, similar portion can be with cross-reference.
The embodiments of the present invention is elaborated above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Various changes can be made under the premise of objective.
Claims (6)
1. a kind of spring fiber bragg grating pressure sensor characterized by comprising pedestal (1), fixed plate (2), fiber grating
(3), clamping piece (4), spring (5), upper junction plate (6) and lower connecting plate (7), wherein pedestal (1) be surrounded by steel plate up and down
The pedestal of opening, fixed plate (2) level are fixed in pedestal (1), and fiber grating (3) is affixed on the bottom of fixed plate (2) and passes through
Clamping piece (4) and fixed plate (2) fixation, upper junction plate (6) and lower connecting plate (7) are individually fixed in two of the spring (5)
Free end, and the axially vertical setting with spring (5) respectively, lower connecting plate (7) are fixed on the top of fixed plate (2) in parallel.
2. according to spring fiber bragg grating pressure sensor described in claim 1, it is characterised in that: fiber grating (3) and fixation
The bottom of plate (2) is cementing.
3. according to spring fiber bragg grating pressure sensor described in claim 1, it is characterised in that: the clamping piece (4) includes
Two are respectively arranged at the intermediate plate of fiber grating (3) end, and the intermediate plate is bolted with fixed plate (2).
4. according to spring fiber bragg grating pressure sensor described in claim 1, it is characterised in that: fixed plate (2) and pedestal (1)
Welding.
5. according to spring fiber bragg grating pressure sensor described in claim 1, it is characterised in that: on the lower connecting plate (7)
Portion is fixedly installed the guide cylinder with the spring (5) cooperation.
6. according to spring fiber bragg grating pressure sensor described in any one of claims 1 to 5, it is characterised in that: under described
Connecting plate (7) is bolted with fixed plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913455.6U CN208238997U (en) | 2018-06-13 | 2018-06-13 | A kind of spring fiber bragg grating pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913455.6U CN208238997U (en) | 2018-06-13 | 2018-06-13 | A kind of spring fiber bragg grating pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208238997U true CN208238997U (en) | 2018-12-14 |
Family
ID=64575695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820913455.6U Active CN208238997U (en) | 2018-06-13 | 2018-06-13 | A kind of spring fiber bragg grating pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208238997U (en) |
-
2018
- 2018-06-13 CN CN201820913455.6U patent/CN208238997U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102506740A (en) | Deformation on-line monitoring device of bottom plate of storage tank based on optical fiber grating | |
| CN201666857U (en) | Large-scale rockfill confining creep deformation compression instrument | |
| CN105698754A (en) | FBG (fiber bragg grating) sensor based on transformer substation settlement measurement | |
| CN103575442A (en) | Method for optimizing reinforced concrete support axial force monitor data with stress-free meter | |
| CN211291421U (en) | Forecasting and early warning device based on ground settlement | |
| CN208238997U (en) | A kind of spring fiber bragg grating pressure sensor | |
| CN205506038U (en) | Fiber bragg grating sensor ware based on settlement measurement of transformer substation | |
| CN102937492B (en) | Method for monitoring absolute stress of pre-stress concrete bridge | |
| CN113218364B (en) | House building safety monitoring system based on optical fiber sensing technology | |
| CN204514385U (en) | Transmission tower inclination supervisory system | |
| CN206163248U (en) | Prevent component damage and prevent antidetonation transformer that topples | |
| CN106400682B (en) | Force-measuring type plate rubber support based on optical fiber deformation sensor | |
| CN209432136U (en) | A kind of cable channel sedimentation instruction device | |
| CN212271033U (en) | Foundation pit deformation measuring device | |
| CN201193310Y (en) | Plate type rubber support capable of measuring force | |
| CN205563958U (en) | Power equipment high -temperature early warning device | |
| CN205209481U (en) | Novel quiet power surveyor's level of fiber grating | |
| CN210108852U (en) | Power grid cost engineering assessment and detection device | |
| CN210464414U (en) | Automatic measuring device for width and flatness of railway track | |
| CN210863000U (en) | Columnar fiber bragg grating pressure sensor | |
| CN203881467U (en) | Force monitoring device for in-use bridge bearing | |
| CN211448030U (en) | Prevent subsiding formula cement pole reinforcing apparatus | |
| CN110565548B (en) | Method for monitoring supporting and reinforcing construction of inclined leg rigid frame bridge | |
| CN110898446B (en) | Dual-mode measurement large-scale evaporator | |
| CN219159974U (en) | River channel water level monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |