CN109297518A - A kind of double-arm fiber-optic grating sensor - Google Patents
A kind of double-arm fiber-optic grating sensor Download PDFInfo
- Publication number
- CN109297518A CN109297518A CN201710604799.9A CN201710604799A CN109297518A CN 109297518 A CN109297518 A CN 109297518A CN 201710604799 A CN201710604799 A CN 201710604799A CN 109297518 A CN109297518 A CN 109297518A
- Authority
- CN
- China
- Prior art keywords
- sensor
- fiber
- fiber grating
- double
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000000605 extraction Methods 0.000 claims abstract 2
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006855 networking Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001085205 Prenanthella exigua Species 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011551 heat transfer agent Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Abstract
A kind of double-arm fiber-optic grating sensor, it is characterised in that: be attached in substrate including fiber grating as TFBG, two fiber grating temperature sensors；Connection optical fiber, extraction optical fiber, movable component are connect with fiber grating temperature sensor.Type of the present invention is the shortcomings that overcoming conventional telecommunications sensor and fibre optical sensor, provides a kind of feasible, and structure is simple, strong antijamming capability, reliability, stability are high, high sensitivity, corrosion-resistant, are easy to carry out the novel fiber grating sensor manufacturing process of networking measurement.
Description
Technical field
The present invention relates to the technical fields of monitoring sensor, and in particular to a kind of double-arm fiber-optic grating sensor.
Background technique
The monitoring sensor that largely uses is by being essentially divided into two classes at present for signal type: one kind is conventional telecommunications number
Sensor, the sensor of the type is divided into digital signal and two kinds of analog signal sensors again, and in addition one kind is that optical signal passes
Sensor.
The shortcomings that for conventional telecommunications sensor, is obvious, and anti-interference is poor, and circuit is easy to be interfered by strong-electromagnetic field
Lead to equipment damage；Comparatively transmission range is not grown, because electric signal is easy decaying in the transmission process of long conducting wire；Type
Various, the requirement to collector is bigger, and the output signal of various types of sensors may be because the function limitation of collector
And it does not read.
And for optical signal sensor, by being divided into two classes for measuring principle: one kind is functional form, and one kind is NOT function
Can type, difference is exactly that functional form sensor is using optical fiber as sensing element, rather than functional form is then using optical fiber as a kind of biography
Defeated medium.The present invention is exactly a kind of functional Fibre-Optic Sensors, i.e. fiber-optic grating sensor, it is the sensing based on fiber grating
Process is to obtain heat transfer agent to the modulation of optical fiber Bragg (Bragg) wavelength by extraneous physical parameter, is a kind of wavelength
Modulation fiber sensor.
Summary of the invention
The present invention is to provide a kind of feasible, structure the shortcomings that overcoming conventional telecommunications sensor and fibre optical sensor
Simple novel fiber grating sensor manufacturing process makes it have strong antijamming capability, and reliability, stability are high, sensitivity
It is high, corrosion-resistant, it is easy to carry out the excellent properties such as networking measurement.
The invention has the benefit that
Type of the present invention is to provide a kind of feasible, structure letter the shortcomings that overcoming conventional telecommunications sensor and fibre optical sensor
Single, strong antijamming capability, reliability, stability are high, high sensitivity, corrosion-resistant, are easy to carry out the novel optical fiber light of networking measurement
Gate sensor manufacturing process.
Detailed description of the invention
Fig. 1 is the double-arm fiber-optic grating sensor structural schematic diagram of the present invention；
1, fiber grating is attached in substrate as TFBG
2, substrate (high resiliency steel wire or steel disc)
3, fiber grating temperature sensor
4, optical fiber is connected
5, optical fiber is drawn
6, movable component
Specific embodiment
It is adapted to, in elastomeric substrate as shown in Figure 1, fiber grating is attached to by the present invention in size, forms two one
The tempering fiber grating sensing element TFBG of body.The sensing element is suitable for a plurality of types of sensors, such as strain gauge, osmotic pressure
Meter, displacement meter, pressure gauge, thermometer etc..The present invention is capable of the sensing element of effective protection sensor not by damage.This
Invention, by special fixed form, effectively removes temperature influence using two sensing element TFBG, substantially increases measurement spirit
Sensitivity.Using general integrated element TFBG, it is applicable in a plurality of types of sensors.Using two integrations
Element TFBG, a stretching strain, a compressive strain, eliminate temperature influence, effectively raise sensor measurement accuracy and
Sensitivity.Essential core component TFBG of the present invention is not physically contacted with shell, is capable of the sensing element of effective protection sensor
Not by damage, sensor failure caused by housing distortion in installation process is avoided.Have original excellent of fibre optical sensor
Point, durability is high, and long transmission distance is anti-interference etc..
The present invention is described in detail above by specific and preferred embodiment, but those skilled in the art should be bright
White, the present invention is not limit to that embodiments describe above, all within the spirits and principles of the present invention, made any modification,
Equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of double-arm fiber-optic grating sensor, it is characterised in that: be attached in substrate including fiber grating as TFBG, two
A fiber grating temperature sensor；Connection optical fiber, extraction optical fiber, movable component are connect with fiber grating temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604799.9A CN109297518A (en) | 2017-07-25 | 2017-07-25 | A kind of double-arm fiber-optic grating sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604799.9A CN109297518A (en) | 2017-07-25 | 2017-07-25 | A kind of double-arm fiber-optic grating sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109297518A true CN109297518A (en) | 2019-02-01 |
Family
ID=65167497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710604799.9A Pending CN109297518A (en) | 2017-07-25 | 2017-07-25 | A kind of double-arm fiber-optic grating sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109297518A (en) |
-
2017
- 2017-07-25 CN CN201710604799.9A patent/CN109297518A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106441511B (en) | Discrete liquid level sensor based on fiber Bragg grating technology | |
| US8805128B2 (en) | Multi-point pressure sensor and uses thereof | |
| CN104101447B (en) | Distributed optical fiber temperature sensor and method for removing nonlinear error of same | |
| CN110702023A (en) | Method and system for reconstructing object shape based on fiber Bragg grating | |
| CN203163913U (en) | Diaphragm type fiber bragg grating pressure sensor with temperature compensation | |
| CN103398800A (en) | Quasi-distributed fiber bragg grating temperature stress measuring system for large-size structure body | |
| CN203191143U (en) | Fiber grating sensor used for measuring pressure of liquid | |
| CN101625273B (en) | Fiber bragg grating osmometer | |
| CN104697682A (en) | Fiber Bragg grating strain-measuring method and fiber Bragg grating strain sensor | |
| CN110702280A (en) | High-sensitivity fiber grating pressure sensor based on square diaphragm | |
| CN111307362B (en) | Fiber bragg grating pressure sensor and using method thereof | |
| JP2018517908A (en) | Optical fiber pressure device, method and application | |
| CN110332900A (en) | Fiber-optic grating sensor temperature compensation structure and method | |
| CN102261978B (en) | Method and device for implementing hydraulic pressure sensing based on twin-core and twin-hole optical fiber | |
| CN112213021B (en) | Differential pressure sensing system based on optical fiber Fabry-Perot and detection method thereof | |
| CN109297518A (en) | A kind of double-arm fiber-optic grating sensor | |
| CN203811318U (en) | Fiber-bragg grating pressure sensor used for dam osmotic pressure monitoring based on diaphragm-type packaging structure | |
| CN209445986U (en) | A kind of patch type fiber Bragg grating strain sensor of high molecular material encapsulation | |
| CN101936792A (en) | Fibre bragg grating negative pressure sensor for mine | |
| CN208998991U (en) | A kind of pressure sensor using fiber grating | |
| CN206161145U (en) | Distributed optical fiber vibration sensing system | |
| CN204374233U (en) | Intensity demodulation type optical fibre grating acceleration sensor | |
| CN205483422U (en) | Oil leak detection device based on fiber grating | |
| CN210513469U (en) | Fiber grating temperature sensor with built-in heat-conducting liquid | |
| CN201852668U (en) | Mining fiber Bragg grating vacuum sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Room 308, floor 3, unit a, building 33, No. 99, Kechuang 14th Street, economic and Technological Development Zone, Daxing District, Beijing 100176 Applicant after: DATATAKER CHINA Ltd. Address before: Room 1635, Haidian new technology building, 65 North Fourth Ring West Road, Haidian District, Beijing 100080 Applicant before: DATATAKER CHINA Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190201 |
|
| RJ01 | Rejection of invention patent application after publication |