CN106500740A - A kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature and preparation method thereof - Google Patents
A kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature and preparation method thereof Download PDFInfo
- Publication number
- CN106500740A CN106500740A CN201610917549.6A CN201610917549A CN106500740A CN 106500740 A CN106500740 A CN 106500740A CN 201610917549 A CN201610917549 A CN 201610917549A CN 106500740 A CN106500740 A CN 106500740A
- Authority
- CN
- China
- Prior art keywords
- fiber
- mode
- mode fiber
- optical fibre
- less fundamental
- 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.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 116
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000013307 optical fiber Substances 0.000 claims abstract description 50
- 238000003466 welding Methods 0.000 claims abstract description 28
- 239000004033 plastic Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 21
- 239000010902 straw Substances 0.000 claims abstract description 19
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims abstract description 8
- 239000011553 magnetic fluid Substances 0.000 claims abstract description 6
- 238000005253 cladding Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000000411 transmission spectrum Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 210000005239 tubule Anatomy 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
- G01D5/268—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 using optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
A kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature, it is characterised in that：It is composed in series by incidence end single-mode fiber, spherical structure, single-mode fiber, less fundamental mode optical fibre and exit end single-mode fiber, and is packaged in plastic straw with Colophonium, in plastic straw, fills magnetic fluid；Spherical structure as bonder, the single-mode fiber of interlude as sensing unit, less fundamental mode optical fibre both as sensing unit, and as bonder.It is an advantage of the invention that：The optical fibre sensor structure simply and readily makes, and only need to carry out simple welding according to a certain percentage to the optical fiber of different core diameters；By spherical structure is cascaded with less fundamental mode optical fibre, can both excite the higher order mode of fibre core, can excite the higher order mode of covering again, can obtain different types of interference paddy, according to which to temperature and the different sensitivity in magnetic field, measure while can realizing Radix Triplostegiae Grandiflorae amount with which.
Description
Technical field
The invention belongs to sensory field of optic fibre, particularly a kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature and its
Preparation method.
Background technology
As the price of optical fibre device is more and more cheaper, species is more and more various, and Fibre Optical Communication Technology is also more and more ripe,
One of which be different from traditional brand-new sensor technology, i.e. optical fiber sensing technology, lightweight due to which, small volume, power consumption
Low, isolation electromagnetic interference and remote manipulation are the advantages of facilitate, and are widely used in the measurement of various physical quantitys, such as temperature, should
Change, pressure, displacement, refractive index etc..It is contemplated that, Fibre Optical Sensor can become the alternative product of electrical sensor, permitted
Multi-field application prospect is quite varied.
Used as the carrier of much information perhaps, magnetic field is present in many places of human society life, nature, therefore, inspection
The task of the various information carried in survey and sample various magnetic fields and its magnetic field, just falls with magnetic field sensor.In recent years,
With the fast development of informationization, industrialization, transportation, Medical Instruments, electronic technology, household electrical appliance etc. so that magnetic field
Sensor is more developed and is applied.
The operation principle of less fundamental mode optical fibre is that its transmission spectrum can be by changing length, applying based on intermode interference principle
Plus axial compressive force, change the method such as ambient temperature to control, therefore, it can design different light according to specific application demand
Fiber device.
Content of the invention
The purpose of the present invention is for above-mentioned technical Analysis, proposes a kind of Radix Triplostegiae Grandiflorae amount Fibre Optical Sensor based on magnetic field and temperature
Device and preparation method thereof, the Fibre Optical Sensor based on spherical structure and less fundamental mode optical fibre, according to interfere paddy to magnetic field and temperature not
Same sensitivity, realizes measuring while Radix Triplostegiae Grandiflorae amount；The sensor construction simply and readily makes, low cost, be conducive to promote should
With.
Technical scheme：
A kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature, by incidence end single-mode fiber, spherical structure, single-mode optics
Fine, less fundamental mode optical fibre and exit end single-mode fiber are composed in series, and are packaged in plastic straw with Colophonium, fill magnetic in plastic straw
Fluid；Incidence end single-mode fiber is connected with spherical structure, and spherical structure is connected with single-mode fiber, and light enters from incidence end single-mode fiber
Enter to chondritic, in the fibre core and covering of middle section single-mould fiber, onwards transmission inspire cladding mode；Single-mode fiber
With less fundamental mode optical fibre welding, less fundamental mode optical fibre and exit end single-mode fiber welding, light is in exit end single-mode fiber and less fundamental mode optical fibre welding
Place emergence pattern is excited and is interfered；The spherical structure as bonder, a diameter of 160-180 μm, the single-mode optics of interlude
Used as sensing unit, length is 2cm to fibre；Both as sensing unit, and as bonder, length is 3cm to less fundamental mode optical fibre, and core diameter is
9 μm, cladding diameter is 125 μm；The a diameter of 2mm of plastic straw, length is 6cm；Single-mode fiber used is standard single-mode fiber,
Core diameter is 8.2 μm, and cladding diameter is 125 μm.
A kind of preparation method of the Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature, step are as follows：
1) section single-mould fiber is put in the optical fiber splicer of model Fitel S178C, using manual manipulation mode,
Electric discharge starts intensity 150bit first, and electric discharge first terminates intensity 150bit, and discharge time is 12100ms, and Promoting Form is double
Side motor movement, advance distance 18000um are obtained spherical structure after electric discharge；
2) above-mentioned spherical structure and a section single-mould fiber are put into optical fiber splicer both sides, using manual manipulation mode, are put
Electricity 100bit, time are 3000ms, and push-in stroke is 25 μm, and after electric discharge, spherical structure completes to be connected with single-mode fiber, in single mode
Fiber lengths be 2cm at, ends cutting is neat with cutter；
3) by above-mentioned single-mode fiber and one section of less fundamental mode optical fibre welding, welding procedure is SMF-MMF, using automatic welding, puts
Electric intensity is 100bit, and the time is 3000ms, at length 3cm, ends cutting is neat with cutter.
4) by above-mentioned less fundamental mode optical fibre and a section single-mould fiber welding, welding procedure selects SMF-MMF, using automatic welding,
Strength of discharge is 100bit, and the time is 3000ms, and after electric discharge, less fundamental mode optical fibre completes to be connected with single-mode fiber, and sensing arrangement is obtained；
5) above-mentioned sensing arrangement is positioned in the plastic straw that a diameter of 2mm, length are 6cm, then to plastic straw
In fill magnetic fluid, then plastic straw two ends are sealed with Colophonium, Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature are obtained.
The working mechanism of the present invention：
Light enters into spherical structure from incidence end single-mode fiber, to forward pass in the fibre core and covering of middle section single-mould fiber
Defeated, and cladding mode is inspired, in single-mode fiber and less fundamental mode optical fibre weld, meet the cladding mode and fibre of phase-matching condition
To interfere between core formula；In addition, the high-order core mode of less fundamental mode optical fibre can be also excited, in less fundamental mode optical fibre and single-mode fiber
Second weld, meets.So, the sensor can include two kinds
Different types of interference, i.e. fibre core-core mode interfere and fibre core-cladding mode is interfered, according to its to temperature and magnetic field not
Same sensitivity, measures while can realizing Radix Triplostegiae Grandiflorae amount with which.
The advantages of the present invention are：
The optical fibre sensor structure simply and readily makes, it is only necessary to which the optical fiber of different core diameters is carried out according to a certain percentage
Simple welding, by cascading spherical structure with less fundamental mode optical fibre, can both excite the higher order mode of fibre core, can excite covering again
Higher order mode, different types of interference paddy can be obtained, according to which to temperature and the different sensitivity in magnetic field, can be realized with which
Measure while Radix Triplostegiae Grandiflorae amount；The sensor construction is compact, easy to make, cost is relatively low, thus is more suitable for actual application.
Description of the drawings
Fig. 1 is the optical fibre sensor structure schematic diagram.
Fig. 2 is the Fibre Optical Sensor detection method schematic diagram.
Fig. 3 is the transmission spectrum of the Fibre Optical Sensor.
In figure：1. incidence end single-mode fiber, 2. spherical structure, 3. single-mode fiber, 4. less fundamental mode optical fibre, 5. Colophonium, 6. plastics
Tubule, 7. magnetic fluid, 8. exit end single-mode fiber, 9. wideband light source, 10. magnetic field, 11. Tesla meters, 12. spectroanalysis instruments.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment：
A kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature, as shown in figure 1, by incidence end single-mode fiber 1, spherical
Structure 2, single-mode fiber 3, less fundamental mode optical fibre 4 and exit end single-mode fiber 8 are composed in series, and are packaged in plastic straw 6 with Colophonium 5
In, magnetic fluid 7 filled by plastic straw 6；Incidence end single-mode fiber 1 is connected with spherical structure 2, and spherical structure 2 is connected with single-mode fiber 3
Connect, light enters into chondritic 2 from incidence end single-mode fiber 1, onwards transmission in the fibre core and covering of middle section single-mould fiber 3
And inspire cladding mode；Single-mode fiber 3 and 4 welding of less fundamental mode optical fibre, less fundamental mode optical fibre 4 and 8 welding of exit end single-mode fiber, light exist
4 weld emergence pattern of exit end single-mode fiber 8 and less fundamental mode optical fibre is excited and is interfered；The spherical structure 2 as bonder,
A diameter of 160-180 μm, used as sensing unit, length is 2cm to the single-mode fiber 3 of interlude；Less fundamental mode optical fibre 4 both as sensing unit,
Again as bonder, length is 3cm, and core diameter is 9 μm, and cladding diameter is 125 μm；6 a diameter of 2mm of plastic straw, length
For 6cm；Single-mode fiber used is standard single-mode fiber, and core diameter is 8.2 μm, and cladding diameter is 125 μm.
Light enters into chondritic 2 from incidence end single-mode fiber 1, onwards transmission in middle section single-mould fiber 3, and excites
Go out cladding mode, in single-mode fiber 3 and 4 weld of less fundamental mode optical fibre, meet between the cladding mode of phase matched and core mode
To interfere.In addition, the high-order core mode in less fundamental mode optical fibre 4 can also be excited, in less fundamental mode optical fibre 4 and single-mode fiber 8
Weld, meets.So, the sensor can include two kinds of inhomogeneities
The interference of type, i.e. fibre core-core mode is interfered and fibre core-cladding mode is interfered.
A kind of preparation method of the Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature, step are as follows：
1) section single-mould fiber is put in the optical fiber splicer of model Fitel S178C, using manual manipulation mode,
Electric discharge starts intensity 150bit first, and electric discharge first terminates intensity 150bit, and discharge time is 12100ms, Z advance distances
18000um, Z Promoting Form 2, is obtained spherical structure after electric discharge；
2) above-mentioned spherical structure and a section single-mould fiber are put into optical fiber splicer both sides, using manual manipulation mode, are put
Electricity 100bit, time are 3000ms, and push-in stroke is 25 μm, and after electric discharge, spherical structure completes to be connected with single-mode fiber, in single mode
Fiber lengths be 2cm at, ends cutting is neat with cutter；
3) by above-mentioned single-mode fiber and one section of less fundamental mode optical fibre welding, welding procedure selects SMF-MMF, and (program is applied to not
With the welding between core optical fibers), using automatic welding, strength of discharge is 100bit, and the time is 3000ms, length at 3cm,
Ends cutting is neat with cutter.
4) by above-mentioned less fundamental mode optical fibre and a section single-mould fiber welding, welding procedure selects SMF-MMF, using automatic welding,
Strength of discharge is 100bit, and the time is 3000ms, and after electric discharge, less fundamental mode optical fibre completes to be connected with single-mode fiber, and sensing arrangement is obtained；
5) above-mentioned sensing arrangement is positioned over a diameter of 2mm, during length is for the plastic straw of 6cm, then toward plastic straw
In fill magnetic fluid, then plastic straw two ends are sealed with Colophonium, Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature are obtained.
Concrete detection method, as shown in Figure 2：
Input single-mode fiber 1 is connected with wideband light source 9, outfan single-mode fiber 8 is connected with spectroanalysis instrument 12, will
The sensing arrangement that makes is fixed in laboratory table, then applies magnetic field 10 to the sensor, with the measurement sensing of Tesla meter 11
The size of device surrounding magnetic field, magnetic-field measurement scope are 0mT-20mT, and magnetic field records a secondary data every 2mT, according to surveyed data,
Can show that external magnetic field changes the relation with spectral shift amount.Again the sensor is fixed on temperature-constant plate, temperature is carried out
Measurement, it is 25-50 DEG C to arrange temperature-constant plate range of temperature, records a secondary data every 5 DEG C.
Fig. 3 is the transmission spectrum of the Fibre Optical Sensor, observes spectrogram, when external environment changes, according to interference
The drift value of spike length, in conjunction with sensitive matrix equationThe change in temperature and magnetic field is obtained
Change amount, wherein, Δ λ1With Δ λ2The characteristic wavelength of respectively fibre core-fibre core interference peaks and fibre core-covering interference peaks, Δ T and Δ M
The variable quantity of respectively temperature and refractive index, KT1、KM1And KT2、KM2It is that fibre core-fibre core interference peaks and fibre core-covering are interfered respectively
The temperature and refractive index sensitivity of peak characteristic wavelength.
Claims (2)
1. a kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature, it is characterised in that：By incidence end single-mode fiber, spherical junctions
Structure, single-mode fiber, less fundamental mode optical fibre and exit end single-mode fiber are composed in series, and are packaged in plastic straw with Colophonium, and plastics are thin
Magnetic fluid is filled in pipe；Incidence end single-mode fiber is connected with spherical structure, and spherical structure is connected with single-mode fiber, and light is from incidence end
Single-mode fiber enters into chondritic, in the fibre core and covering of middle section single-mould fiber onwards transmission inspires cladding mode
Formula；Single-mode fiber and less fundamental mode optical fibre welding, less fundamental mode optical fibre and exit end single-mode fiber welding, light is in exit end single-mode fiber and less
Mode fiber weld emergence pattern is excited and is interfered；The spherical structure is as bonder, a diameter of 160-180 μm, middle
Used as sensing unit, length is 2cm to the single-mode fiber of section；Less fundamental mode optical fibre is both as sensing unit, and used as bonder, length is 3cm,
Core diameter is 9 μm, and cladding diameter is 125 μm；The a diameter of 2mm of plastic straw, length is 6cm；Single-mode fiber used is mark
Quasi-monomode fiber, core diameter are 8.2 μm, and cladding diameter is 125 μm.
2. a kind of preparation method as claimed in claim 1 based on the Radix Triplostegiae Grandiflorae component opitical fiber sensor of magnetic field and temperature, its feature exist
As follows in step：
1) section single-mould fiber is put in the optical fiber splicer of model Fitel S178C, using manual manipulation mode, first
Electric discharge starts intensity 150bit, and electric discharge first terminates intensity 150bit, and discharge time is 12100ms, and Promoting Form is bilateral horse
Up to movement, advance distance 18000um, spherical structure after electric discharge, is obtained；
2) above-mentioned spherical structure and a section single-mould fiber are put into optical fiber splicer both sides, using manual manipulation mode, discharge capacity
100bit, time are 3000ms, and push-in stroke is 25 μm, and after electric discharge, spherical structure completes to be connected with single-mode fiber, in single-mode fiber
Length be 2cm at, ends cutting is neat with cutter；
3) by above-mentioned single-mode fiber and one section of less fundamental mode optical fibre welding, welding procedure is SMF-MMF, and using automatic welding, electric discharge is strong
Spend for 100bit, the time is 3000ms, at length 3cm, ends cutting is neat with cutter.
4) by above-mentioned less fundamental mode optical fibre and a section single-mould fiber welding, welding procedure selects SMF-MMF, using automatic welding, discharges
Intensity is 100bit, and the time is 3000ms, and after electric discharge, less fundamental mode optical fibre completes to be connected with single-mode fiber, and sensing arrangement is obtained；
5) above-mentioned sensing arrangement is positioned in the plastic straw that a diameter of 2mm, length are 6cm, is then filled out in plastic straw
Magnetize fluid, then plastic straw two ends are sealed with Colophonium, and the Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917549.6A CN106500740B (en) | 2016-10-21 | 2016-10-21 | A kind of double parameter fibre optical sensors and preparation method thereof based on magnetic field and temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917549.6A CN106500740B (en) | 2016-10-21 | 2016-10-21 | A kind of double parameter fibre optical sensors and preparation method thereof based on magnetic field and temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106500740A true CN106500740A (en) | 2017-03-15 |
| CN106500740B CN106500740B (en) | 2019-03-01 |
Family
ID=58318153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610917549.6A Active CN106500740B (en) | 2016-10-21 | 2016-10-21 | A kind of double parameter fibre optical sensors and preparation method thereof based on magnetic field and temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106500740B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063499A (en) * | 2017-04-19 | 2017-08-18 | 天津理工大学 | A kind of double parameter fibre optical sensors and preparation method based on less fundamental mode optical fibre wimble structure |
| CN107449471A (en) * | 2017-09-29 | 2017-12-08 | 中国计量大学 | A kind of magnetic field and temperature simultaneously measuring device based on highly doped germanium fibre-optical probe |
| CN108168583A (en) * | 2017-12-22 | 2018-06-15 | 北京信息科技大学 | The two-parameter fibre optical sensor of electric discharge welding preparation is combined based on chemical attack |
| CN109031168A (en) * | 2018-06-01 | 2018-12-18 | 燕山大学 | A kind of taper less fundamental mode optical fibre magnetic field sensor based on magnetic fluid |
| CN109990845A (en) * | 2019-05-05 | 2019-07-09 | 中国计量大学 | Three core fibre magnetic fields and the temperature sensing structure of covering are removed in a kind of magnetic fluid and side |
| CN110471008A (en) * | 2019-08-08 | 2019-11-19 | 天津大学 | Vector fibre optic magnetic field sensor and preparation method thereof based on eccentric tiny balloon chamber |
| CN113324570A (en) * | 2021-06-03 | 2021-08-31 | 南京信息工程大学 | Sensing device based on balloon-shaped optical fiber MZI and manufacturing method of balloon-shaped optical fiber MZI sensor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090260501A1 (en) * | 2008-04-18 | 2009-10-22 | Raman Kashyap | Multi-mode optical fiber sensor |
| CN102904641A (en) * | 2012-10-17 | 2013-01-30 | 江西省电力公司信息通信分公司 | Communication system based on few-mode optical fiber |
| CN103823125A (en) * | 2014-03-10 | 2014-05-28 | 天津理工大学 | Fine-core optical core and magnetic fluid-based electric field sensor |
| CN103823194A (en) * | 2014-03-10 | 2014-05-28 | 天津理工大学 | Magnetic field measuring device based on coreless fiber and magnetic fluid |
| CN103884364A (en) * | 2014-04-18 | 2014-06-25 | 天津理工大学 | Optical fiber interferometric sensor based on cascade connection between tapered structure and spherical structure |
| GB2514326A (en) * | 2013-03-26 | 2014-11-26 | Stephen Wayne James | A fibre optic chemical sensor that is insensitive to the influence of interfering parameters |
| CN104215269A (en) * | 2014-09-19 | 2014-12-17 | 天津理工大学 | Reflective optical fiber interferometric sensor based on spheroidal structure |
| CN104236601A (en) * | 2014-10-10 | 2014-12-24 | 天津理工大学 | Double-parameter optical fiber sensor on basis of spherical structures and multi-mode optical fibers |
-
2016
- 2016-10-21 CN CN201610917549.6A patent/CN106500740B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090260501A1 (en) * | 2008-04-18 | 2009-10-22 | Raman Kashyap | Multi-mode optical fiber sensor |
| CN102904641A (en) * | 2012-10-17 | 2013-01-30 | 江西省电力公司信息通信分公司 | Communication system based on few-mode optical fiber |
| GB2514326A (en) * | 2013-03-26 | 2014-11-26 | Stephen Wayne James | A fibre optic chemical sensor that is insensitive to the influence of interfering parameters |
| CN103823125A (en) * | 2014-03-10 | 2014-05-28 | 天津理工大学 | Fine-core optical core and magnetic fluid-based electric field sensor |
| CN103823194A (en) * | 2014-03-10 | 2014-05-28 | 天津理工大学 | Magnetic field measuring device based on coreless fiber and magnetic fluid |
| CN103884364A (en) * | 2014-04-18 | 2014-06-25 | 天津理工大学 | Optical fiber interferometric sensor based on cascade connection between tapered structure and spherical structure |
| CN104215269A (en) * | 2014-09-19 | 2014-12-17 | 天津理工大学 | Reflective optical fiber interferometric sensor based on spheroidal structure |
| CN104236601A (en) * | 2014-10-10 | 2014-12-24 | 天津理工大学 | Double-parameter optical fiber sensor on basis of spherical structures and multi-mode optical fibers |
Non-Patent Citations (2)
| Title |
|---|
| YOUFU GENG等: "Compact and Ultrasensitive Temperature Sensor With a Fully Liquid-Filled Photonic Crystal Fiber Mach–Zehnder Interferometer", 《IEEE SENSORS JOURNAL》 * |
| 魏春芬: "基于少模光纤的滤波器件和温度传感的研究", 《万方数据知识服务平台》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063499A (en) * | 2017-04-19 | 2017-08-18 | 天津理工大学 | A kind of double parameter fibre optical sensors and preparation method based on less fundamental mode optical fibre wimble structure |
| CN107449471A (en) * | 2017-09-29 | 2017-12-08 | 中国计量大学 | A kind of magnetic field and temperature simultaneously measuring device based on highly doped germanium fibre-optical probe |
| CN108168583A (en) * | 2017-12-22 | 2018-06-15 | 北京信息科技大学 | The two-parameter fibre optical sensor of electric discharge welding preparation is combined based on chemical attack |
| CN108168583B (en) * | 2017-12-22 | 2020-04-03 | 北京信息科技大学 | Double-parameter optical fiber sensor prepared based on chemical corrosion combined with discharge welding |
| CN109031168A (en) * | 2018-06-01 | 2018-12-18 | 燕山大学 | A kind of taper less fundamental mode optical fibre magnetic field sensor based on magnetic fluid |
| CN109990845A (en) * | 2019-05-05 | 2019-07-09 | 中国计量大学 | Three core fibre magnetic fields and the temperature sensing structure of covering are removed in a kind of magnetic fluid and side |
| CN110471008A (en) * | 2019-08-08 | 2019-11-19 | 天津大学 | Vector fibre optic magnetic field sensor and preparation method thereof based on eccentric tiny balloon chamber |
| CN113324570A (en) * | 2021-06-03 | 2021-08-31 | 南京信息工程大学 | Sensing device based on balloon-shaped optical fiber MZI and manufacturing method of balloon-shaped optical fiber MZI sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106500740B (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106500740A (en) | A kind of Radix Triplostegiae Grandiflorae component opitical fiber sensor based on magnetic field and temperature and preparation method thereof | |
| CN100593727C (en) | Apparatus based on magnetofluid refraction index changing and detecting magnetic variation | |
| CN104316106A (en) | Optical fiber sensor based on Mach-Zehnder interference and fiber bragg grating | |
| CN105044030B (en) | Evanscent field coupling coefficient meter and its detection method between optical fiber is fine | |
| CN102261965B (en) | Temperature sensing method and device based on double-core optical fiber | |
| CN103969221A (en) | Optical fiber refractive index sensor based on single mode-fine core-multimode-single mode structure | |
| CN102322894B (en) | Allfiber type long period fiber grating solution multi-parameter sensing system | |
| CN203224447U (en) | Refractive rate sensor based on fine-core fiber MZ (Mach-Zehnder) interferometer | |
| CN203705627U (en) | Fiber magnetic field sensor based on SMS structure and magnetic liquid | |
| CN203587177U (en) | Optical fiber liquid level sensor | |
| CN207501987U (en) | Magnetic field and temperature dual sampling device based on fiber grating | |
| CN103528609A (en) | Combined interference type multi-parameter optical fiber sensor | |
| CN103940455A (en) | All-fiber high accuracy sensor based on optical fiber multi-mode interference and application thereof | |
| CN103823194A (en) | Magnetic field measuring device based on coreless fiber and magnetic fluid | |
| CN202126393U (en) | Refractive index sensor based on pull cone and pouring type photonic crystal optical fiber | |
| Hao et al. | Surface plasmon resonance refractive index sensor based on active photonic crystal fiber | |
| CN103453940A (en) | Optical fiber sensor based on multi-mode structure | |
| CN204556023U (en) | Based on two parameteric light fiber sensors of polarization maintaining optical fibre | |
| CN106197548A (en) | A kind of based on wimble structure with the fibre optic magnetic field sensor of Semen arachidis hypogaeae wimble structure cascaded optical fiber Bragg grating | |
| CN105203828A (en) | Photoelectric AC/DC voltage transducer based on Pockels effect | |
| CN108318452A (en) | A kind of cone of intensity modulation type four light fibre humidity transducer | |
| CN102539011B (en) | Temperature sensor based on phosphor-doped fiber radiation induced attenuation thermosensitivity | |
| CN114137273A (en) | Temperature sensitive current eliminating sensing device of FBG (fiber Bragg Grating) cascade optical fiber composite structure | |
| CN203811538U (en) | Mach-Zehnder interferometer and microcavity cascaded intensity detection type sensor | |
| CN101109663A (en) | Optical fiber temperature sensor based on bending loss |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| OL01 | Intention to license declared | ||
| OL01 | Intention to license declared |