CN201844821U - FBG (fiber bragg grating) displacement sensor - Google Patents
FBG (fiber bragg grating) displacement sensor Download PDFInfo
- Publication number
- CN201844821U CN201844821U CN 201020597175 CN201020597175U CN201844821U CN 201844821 U CN201844821 U CN 201844821U CN 201020597175 CN201020597175 CN 201020597175 CN 201020597175 U CN201020597175 U CN 201020597175U CN 201844821 U CN201844821 U CN 201844821U
- Authority
- CN
- China
- Prior art keywords
- spring
- fbg
- wire rope
- displacement sensor
- fiber grating
- 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
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
The utility model discloses an FBG (fiber bragg grating) displacement sensor, which is characterized in that a transmission optical fiber is connected with an FBG that is connected with one end of a spring; the other end of the spring is connected with a steel wire rope; the other end of the steel wire rope is fixedly connected with a stator; the FBG and the spring are externally provided with a protector formed by sliding connection of a steel pipe and a substrate; the steel wire rope is externally provided with a sleeve and connected with the spring; and a steel pipe is in sliding connection with the substrate. In the utility model, an electronic device is not arranged, therefore, the FBG displacement sensor has good waterproof property, does not have electric spark hidden danger, resists electromagnetic interference, is small in volume and can be used for displacement measurement of a narrow space.
Description
Technical field
The utility model relates to a kind of sensor, particularly a kind of fiber grating displacement sensor.
Background technology
High precision, high-speed Measuring Object displacement at present more and more paid attention to, and particularly a large amount of research and discussion carried out in the measurement of the little displacement of small space.Therefore, utilize the displacement measurement of the optical fiber sensing technology with unique advantage more and more to be subject to people's attention, but be used for the fiber-optic grating sensor of displacement measurement now, its measurement range is less, can not satisfy high precision, high-speed measurement requirement.
The utility model content
The purpose of this utility model provides a kind of simple in structure, and is easy to use, and highly sensitive, anti-electromagnetic interference (EMI) is strong, the fiber grating displacement sensor that the displacement measurement precision is high.
The technical solution of the utility model is: a kind of fiber grating displacement sensor; its Transmission Fibers is connected with fiber grating; fiber grating is connected with spring one end; spring other end wire rope one end connects; the wire rope other end is connected surely with stator, and fiber grating and spring outside are provided with the protective device that steel pipe and pedestal are slidingly connected and form, and the wire rope outside is provided with sleeve pipe; wire rope is connected with spring, and steel pipe and pedestal are slidingly connected.
The utility model does not have electron device, therefore has favorable waterproof property, does not have electric spark hidden danger, and anti-electromagnetic interference (EMI); Volume is little, can be used for the displacement measurement of small space.
Description of drawings
Figure l is the utility model structural representation.
Embodiment
Embodiment is shown in figure l: a kind of fiber grating displacement sensor; its Transmission Fibers l is connected with fiber grating 2; fiber grating 2 is connected with spring 3 one ends; spring 3 other end wire rope 6 one ends connect; wire rope 6 other ends are fixedlyed connected with stator 8, and fiber grating 2 and spring 3 outsides are provided with the protective device that steel pipe 4 and pedestal 5 are slidingly connected and form, and wire rope 6 outsides are provided with sleeve pipe 7; wire rope 6 is connected with spring 3, and steel pipe 4 and pedestal 5 are slidingly connected.
Claims (1)
1. fiber grating displacement sensor; it is characterized in that: its Transmission Fibers (l) is connected with fiber grating (2); fiber grating (2) is connected with spring (3) one ends; spring (3) other end wire rope (6) one ends connect; wire rope (6) other end is fixedlyed connected with stator (8); fiber grating (2) and spring (3) outside are provided with the protective device that steel pipe (4) and pedestal (5) are slidingly connected and form; wire rope (6) outside is provided with sleeve pipe (7); wire rope (6) is connected with spring (3), and steel pipe (4) and pedestal (5) are slidingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020597175 CN201844821U (en) | 2010-11-09 | 2010-11-09 | FBG (fiber bragg grating) displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020597175 CN201844821U (en) | 2010-11-09 | 2010-11-09 | FBG (fiber bragg grating) displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844821U true CN201844821U (en) | 2011-05-25 |
Family
ID=44039709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020597175 Expired - Fee Related CN201844821U (en) | 2010-11-09 | 2010-11-09 | FBG (fiber bragg grating) displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679884A (en) * | 2012-05-09 | 2012-09-19 | 成都远恒精密测控技术有限公司 | Explosion-proof optical grating displacement sensor |
| CN108507477A (en) * | 2018-05-04 | 2018-09-07 | 北京交通大学 | A kind of thermal cracking sensor based on less fundamental mode optical fibre and fiber bragg grating |
-
2010
- 2010-11-09 CN CN 201020597175 patent/CN201844821U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679884A (en) * | 2012-05-09 | 2012-09-19 | 成都远恒精密测控技术有限公司 | Explosion-proof optical grating displacement sensor |
| CN108507477A (en) * | 2018-05-04 | 2018-09-07 | 北京交通大学 | A kind of thermal cracking sensor based on less fundamental mode optical fibre and fiber bragg grating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203364772U (en) | Patch-type optical fiber strainmeter with temperature compensation | |
| CN102878943B (en) | The multiple sensing system of fiber strain integration calibrating installation of large scale and method | |
| CN201844821U (en) | FBG (fiber bragg grating) displacement sensor | |
| CN201444039U (en) | Micro fiber grating displacement sensor | |
| CN201266122Y (en) | Optical fiber grating temperature sensor probe | |
| CN212872652U (en) | High-potential cable sheath voltage measuring device based on electric field measurement | |
| CN201903554U (en) | FBG (fiber Bragg grating) accelerometer using multimode interference SMS (single-mode, multimode and single-mode) structure as edge filter | |
| CN203069301U (en) | Fiber bragg grating-type pressure sensor | |
| CN104392795A (en) | Intelligent temperature measuring soft cable with 6/10kV rated voltage for coal mine | |
| CN202770556U (en) | Oil storage tank temperature monitoring device based on distributed optical fiber temperature sensor | |
| CN202995055U (en) | Optical fiber sensing device for sensing presence of liquid | |
| CN201616279U (en) | Integrated composite cable | |
| CN201266418Y (en) | On-line real time fibre-optical grating fire monitoring system | |
| CN205138509U (en) | High accuracy capacitive sensor | |
| CN204028044U (en) | A kind of double optical fiber grating sensor detecting for Detection of Bolt Bonding Integrity | |
| CN203432544U (en) | High-precision fiber grating strain sensor | |
| CN202404139U (en) | Extended forcipate current and resistance tester | |
| CN103162865A (en) | Temperature sensing device based on double-core optical fiber | |
| CN202836391U (en) | Screw micrometer provided with magnifier | |
| CN202542591U (en) | Rodless ground wire spool | |
| CN203587850U (en) | Novel optical cable of oil and gas well | |
| CN202196216U (en) | All-dielectric temperature sensing optical cable | |
| CN204215794U (en) | A kind of rated voltage 6/10kV coal mining intelligent thermometric flexible cable | |
| CN205374706U (en) | Stranded steel strand wires magnetic flux load transducer | |
| CN104516072A (en) | Novel optical cable of oil and gas well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20111109 |