CN108519126A - The sensor of multi parameter simultaneous measuring based on multimode and wimble structure - Google Patents
The sensor of multi parameter simultaneous measuring based on multimode and wimble structure Download PDFInfo
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- CN108519126A CN108519126A CN201810419463.XA CN201810419463A CN108519126A CN 108519126 A CN108519126 A CN 108519126A CN 201810419463 A CN201810419463 A CN 201810419463A CN 108519126 A CN108519126 A CN 108519126A
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- 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
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
A kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, including incident end structure, outgoing end structure and sensing plot structure；There are two wimble structures in sensing unit；Its structure and technical process are simple, are easy to make, at low cost, small, corrosion-resistant；It can solve the problems, such as many reference amounts cross sensitivity such as temperature and refractive index, the application value with bigger.
Description
Technical field
It is especially a kind of to be passed based on the multi parameter simultaneous measuring of multimode and wimble structure the present invention relates to sensor technical field
Sensor.
Background technology
With the progress of modern society, interferometric optical fiber sensor is quickly grown, since it is with small, sensitivity
High, of low cost, electromagnetism interference, it is corrosion-resistant the advantages that, can be applied to the ginsengs such as stress, temperature, curved power, refractive index, humidity
The measurement of amount, such as engineering health is detected by differentiating the bending degree of sensor, distinguish stream pressure control using sensor
The safety of aerospace processed, the safe temperature etc. for controlling industrial production line by temperature sensor have and widely answer very much
Use field.
Traditional interferometric optical fiber sensor can carry out single parameter or two parameter measurement, generally can not directly carry out many reference amounts
It measures, needs cascade fiber grating structure such as Bragg grating measuring temperature etc., this method is expensive, complicated, no
Easily realized in production application.Interferometric optical fiber sensor would ordinarily be encountered multiple environment ginsengs in applied to real process
The problems such as measuring cross influence, a certain parameter of single-measurement may be generated error by other parameter influences.
Invention content
The purpose of the present invention is to provide a kind of sensors of the multi parameter simultaneous measuring based on multimode and wimble structure, it can
A kind of sensor simple in structure with overcome the deficiencies in the prior art, and its working method easily realize it is symmetrical based on bipyramid
Mach-Zeng Deer (M-Z) interference sensor, can realize many reference amounts such as refractive index and temperature while measure.
Technical scheme of the present invention：A kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature
It is that it includes incident end structure, outgoing end structure and sensing plot structure；Wherein, the incident end structure is incidence end single-mode optics
Fibre, the input terminal as sensor；The outgoing end structure is exit end single-mode fiber, the output end as sensor；It is described
Sensing plot structure includes incidence end multimode fibre, multimode cone I structures, interlude multimode fibre, multimode cone II structures and exit end
Multimode fibre；The incidence end single-mode fiber receives the optical information that light source is sent out, and passes through incidence end multimode fibre successively, multimode is bored
I structures, interlude multimode fibre, multimode cone II structures and exit end multimode fibre, are finally believed light by exit end single-mode fiber
Breath output.
The incidence end single-mode fiber and exit end single-mode fiber are the single mode optical fiber of Corning Incorporated's production, core diameter
It it is 8.2 μm, cladding diameter is 125 μm, and fiber core refractive index is 1.4502, and cladding index is 1.445.
The multimode fibre of the incidence end multimode fibre, interlude multimode fibre and exit end multimode fibre is Chang Fei companies
The multimode fibre of production, core diameter are 50 μm, and cladding diameter is 125 μm, fiber core refractive index 1.4662, cladding index
It is 1.45.
Multimode fibre length between the single mode optical fiber structure and wimble structure is 0.3-2.0cm.
Multimode fibre length between the incidence end single-mode fiber and multimode cone I structures is 0.3-2.0cm.
Multimode fibre length between the exit end single-mode fiber and multimode cone II structures is 0.3-2.0cm.
The waist cone a diameter of 65 of the multimode cone I structures and multimode cone II structures5 μm, cone section length is 54010μm。
Distance is 0.375-2.5cm between described two wimble structures.
A kind of manufacture craft process of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, it is characterised in that
It includes the following steps：
1）Coat is peelled off by one section and surface is cut complete single mode optical fiber and is placed in the left fixture of optical fiber splicer, then will
One section is peelled off coat and surface is cut complete multimode fibre and is placed in the right fixture of optical fiber splicer, buckles hurricane globe,
Select single mode and the automatic welding procedure of multimode, strength of discharge is 100-120 bit, and discharge time is 200-250 ms, when fritting
Between be 90 ms, automatic welding procedure can complete the welding of incidence end single-mode fiber and incidence end multimode fibre；
2）By step 1）The structure that welding is completed, it is smooth with optical fiber cutter cutting at multimode fibre 1.0-6.5cm, it is placed on light
In the left fixture of fine heat sealing machine, then by one section peels off coat and surface and cut complete single mode optical fiber and be placed on optical fiber splicer
Right fixture in, repeat step 1）, you can complete the welding of exit end multimode fibre and exit end single-mode fiber；
3）By step 2）In the good structure of welding optical fiber splicer is placed at 0.3-2.0cm on the right side of the incidence end of multimode fibre
On electrode bar center, left and right ends are firm using fixture, and wimble structure is beaten in selection manually, and wherein strength of discharge is 80-
100bit, discharge time 1000-1100ms, using precise distance measurement instrument on the right side of first wimble structure of distance 0.375-
Identical second wimble structure of program making is used at 2.5cm, completes the making of sensing arrangement.
The step 1）The model Fitel-S178C of middle optical fiber splicer.
The step 2）The model of middle optical fiber cutter is FC-6S.
A kind of test method of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, it is characterised in that it is wrapped
Include following steps：
（1）By the sensor structure being welded is smooth and being fixed on temperature control panel without bending；
（2）Incidence end single-mode fiber is connect with light source, then exit end single-mode fiber is connect with spectrometer, every 5 DEG C of records
The temperature range of spectroscopic data on spectrometer, record is 25-70 DEG C；
（3）To step（2）Ten groups of obtained spectroscopic datas carry out analysis and can be obtained the sensitivity that sensor varies with temperature；
（4）The temperature for controlling temperature control panel is 25 DEG C, and sensor structure is impregnated and is fixed under the water bath of test solution,
By changing the concentration of solution, refractive index is measured using Abel's refractive index measuring instrument, and record the spectrum under each refractive index
The ranges of indices of refraction of spectroscopic data on instrument, record is 1.333-1.386, can similarly analyze refractive index parameter sensitivity；
（5）By being fixed on two-dimentional adjustable support for the smooth no bending of sensor structure, the temperature for controlling temperature control panel is
25 DEG C, the axial tensile force for providing 0.01nm using two-dimentional adjustable support every time is equal to change strain 200, record answers
Become ranging from 0-2000, can similarly analyze strain parameter sensitivity；
（6）When light reaches the weld with incidence end multimode fibre 3 from incidence end single-mode fiber 1, due to fiber core size
It changes, makes multimode fibre that high-order core mode, the basic mode continuation of this pattern and fiber core be excited to be passed in multimode fibre
It is defeated, when reaching two wimble structures, since cataclysm occurs for the size of wimble structure fibre core, to excite the cladding mode of multimode fibre
Formula；
（7）When optical transport to exit end multimode fibre 7 and 2 weld of exit end single-mode fiber, due to the covering of multimode fibre
Pattern and high-order core mode have certain phase difference, if the phase difference meets Mach one Zeng Deer (M-Z) interferometer
Condition, then both patterns will interfere；The case where interference, can obtain in spectrogram；Pass through interference pattern in spectrum
Variation can perceive many reference amounts situations of change such as extraneous temperature and refractive index, sensing is achieved the purpose that with this.
The operation principle of the present invention：This structure is to cascade upper multimode fibre by single mode optical fiber to cascade upper single mode optical fiber again, i.e.,
Welding single mode optical fiber-multimode fibre-single mode optical fiber (SMS) structure, recycle precise distance measurement instrument on multimode fibre it is specific away from
From two wimble structures of making, i.e., the making of complete cost sensor.Sensor is the single mode optical fiber by both ends respectively as input terminal
And output end, sensitive zones are incidence end multimode fibre, multimode cone I structures, interlude multimode fibre, multimode cone II structures, go out
Penetrate end multimode fibre.The present invention is exactly on the basis of traditional single mode optical fiber-multimode fibre-single mode optical fiber (SMS) sensor
Two wimble structures have been made, original structure is improved.Since multimode fibre can be related to various modes when as sensing, and
The variation of multimode wimble structure fiber size can inspire the variety classes pattern of inside of optical fibre, and then it is dry to generate different patterns
It relates to, when the interference paddy sensitivity of generation differs, you can realize that many reference amounts measure.Furthermore, it is possible to by sensitivity matrix come
The cross sensitivity reduced between each parameter influences, and reduces experimental error.
The superiority of the present invention：It is simple in structure, be easy to make, cost is relatively low, and have many advantages, such as it is small, corrosion-resistant,
Upper single mode optical fiber is welded at one section of multimode fibre both ends using heat sealing machine, reuses making cone program and makes two on multimode fibre
A wimble structure can be obtained sensing arrangement；Due to wimble structure diameter cataclysm, so cladding mode energy during mode propagation
Greatly, the changes in contrast of the interference spectrum striped obtained is big, and spectrum can drift about；Temperature can be solved by meter sensitivity matrix
The problem of with many reference amounts cross sensitivity such as refractive index, the application value with bigger.
Figure of description
Fig. 1 is a kind of overall structure signal of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure involved by the present invention
Figure.
Fig. 2 is a kind of test philosophy of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure involved by the present invention
Schematic diagram.
Fig. 3 is a kind of projection spectrum of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure involved by the present invention
Figure.
Wherein, 1 is incidence end single-mode fiber；2 be exit end single-mode fiber；3 be incidence end multimode fibre；4 bore I for multimode
Structure；5 be interlude multimode fibre；6 bore II structures for multimode；7 be exit end multimode fibre；8 be light source；9 be sensor knot
Structure；10 be temperature control panel；11 be spectrometer；12 be test solution；13 two-dimentional adjustable supports.
Specific implementation mode
Embodiment：As shown in Figure 1, a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature
It is that it includes incident end structure, outgoing end structure and sensing plot structure；Wherein, the incident end structure is incidence end single-mode optics
Fibre 1, the input terminal as sensor；The outgoing end structure is exit end single-mode fiber 2, the output end as sensor；Institute
It includes incidence end multimode fibre 3, multimode cone I structures 4, interlude multimode fibre 5,6 and of multimode cone II structures to state sensing plot structure
Exit end multimode fibre 7；The incidence end single-mode fiber receives the optical information that light source 8 is sent out, and passes through incidence end multimode light successively
Fibre 3, multimode cone I structures 4, interlude multimode fibre 5, multimode cone II structures 6 and exit end multimode fibre 7, finally by exit end
Single mode optical fiber exports optical information.
The multimode fibre of selected incidence end multimode fibre 3, interlude multimode fibre 5 and exit end multimode fibre 7 is
The multimode fibre of Chang Fei companies production, core diameter are 50 μm, and cladding diameter is 125 μm, fiber core refractive index 1.4662, packet
Layer refractive index is 1.45.The single mode optical fiber that selected single mode optical fiber structure is produced by Corning Incorporated, core diameter are 8.2 μ
M, cladding diameter are 125 μm, and fiber core refractive index is 1.4502, and cladding index is 1.445.
Multimode fibre length between the embodiment single mode optical fiber structure used and wimble structure is 2cm；What embodiment used
Multimode fibre length between incidence end single-mode fiber 1 and multimode cone I structures 4 is 2cm；The exit end single-mode optics that embodiment uses
Multimode fibre length between fibre 2 and multimode cone II structures 6 is 2cm.The multimode cone I structures 4 and multimode that embodiment makes bore II
A diameter of 65 μm of the waist cone of structure 6, cone section length are 540 μm, and distance is 2.5cm between two wimble structures.
A kind of manufacture craft process of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, it is characterised in that
It includes the following steps：
1）Coat is peelled off by one section and surface is cut complete single mode optical fiber and is placed in the left fixture of optical fiber splicer, then will
One section is peelled off coat and surface is cut complete multimode fibre and is placed in the right fixture of Fitel-S178C optical fiber splicers,
It buckles hurricane globe, selects single mode and the automatic welding procedure of multimode, strength of discharge 100bit, discharge time 200ms, when fritting
Between be 90 ms, automatic welding procedure can complete the welding of incidence end single-mode fiber and incidence end multimode fibre；
2）By step 1）The structure that welding is completed, it is smooth with the cutting of FC-6S optical fiber cutters at multimode fibre 6.5cm, it is placed on
In the left fixture of Fitel-S178C optical fiber splicers, then by one section peels off coat and surface and cut complete single mode optical fiber and put
It sets in the right fixture of Fitel-S178C optical fiber splicers, repeats step 1）, you can complete exit end multimode fibre and exit end
The welding of single mode optical fiber；
3）By step 2）It is placed on the electrode of optical fiber splicer in the good structure of welding on the right side of the incidence end of multimode fibre at 2.0cm
On stick center, left and right ends are firm using fixture, and wimble structure is beaten in selection manually, and wherein strength of discharge is 100bit, is put
The electric time is 1000ms, using precise distance measurement instrument on the right side of first wimble structure of distance the identical program system of the places 2.5cm use
Make second wimble structure, completes the making of sensing arrangement.
Specific test method, as shown in Fig. 2, a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure
Test method, it is characterised in that it includes the following steps：
（1）By the sensor structure 9 being welded is smooth and being fixed on temperature control panel 10 without bending；
（2）Incidence end single-mode fiber 1 is connect with light source 8, then exit end single-mode fiber 2 is connect with spectrometer 11, every 5 DEG C
The spectroscopic data on a spectrometer 11 is recorded, the temperature range of record is 25-70 DEG C；
（3）To step（2）Ten groups of obtained spectroscopic datas carry out analysis and can be obtained the sensitivity that sensor varies with temperature；
（4）The temperature for controlling temperature control panel 10 is 25 DEG C, and sensor structure 9 is impregnated to the water-bath ring for being fixed on test solution 12
Under border, by changing the concentration of solution, refractive index is measured using Abel's refractive index measuring instrument, and record under each refractive index
The ranges of indices of refraction of spectroscopic data on spectrometer 11, record is 1.333-1.386, can similarly analyze refractive index parameter spirit
Sensitivity；
（5）By being fixed on two-dimentional adjustable support 13 for the smooth no bending of sensor structure, the temperature of temperature control panel 10 is controlled
Degree is 25 DEG C, and the axial tensile force for providing 0.01nm using two-dimentional adjustable support 13 every time is equal to change strain 200, note
The range of strain of record is 0-2000, can similarly analyze strain parameter sensitivity；
（6）When light reaches the weld with incidence end multimode fibre 3 from incidence end single-mode fiber 1, due to fiber core size
It changes, makes multimode fibre that high-order core mode, the basic mode continuation of this pattern and fiber core be excited to be passed in multimode fibre
It is defeated, when reaching two wimble structures, since cataclysm occurs for the size of wimble structure fibre core, to excite the cladding mode of multimode fibre
Formula；
（7）When optical transport to exit end multimode fibre 7 and 2 weld of exit end single-mode fiber, due to the covering of multimode fibre
Pattern and high-order core mode have certain phase difference, if the phase difference meets Mach one Zeng Deer (M-Z) interferometer
Condition, then both patterns will interfere；The case where interference, can obtain in spectrogram, as shown in Figure 3；Pass through spectrum
The variation of middle interference pattern can perceive many reference amounts situations of change such as extraneous temperature and refractive index, and the mesh of sensing is reached with this
's.
Such as the transmission spectrum that Fig. 3 is multimode and wimble structure sensor, when being changed by observing each external environment parameter, four
The drift value of a interference paddy dip1, dip2, dip3 and dip4, judge multiple parametrical sense characteristics, and then calculate each parameter
Sensitivity.By meter sensitivity matrix, it is possible to prevente effectively from each parameter intersects the problem of influence, and then realize more
The measurement of parameter.
Although above-mentioned have been described in the embodiment of the present invention, to those of ordinary skill in the art, in this principle and
A variety of variations can be carried out to embodiment, under the premise of not making performing creative labour, belong to the protection of the present invention under spirit
Within the scope of.
Claims (10)
1. a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, it is characterised in that it includes incidence end knot
Structure, outgoing end structure and sensing plot structure；Wherein, the incident end structure is incidence end single-mode fiber, as the defeated of sensor
Enter end；The outgoing end structure is exit end single-mode fiber, the output end as sensor；The sensing plot structure includes incidence
Hold multimode fibre, multimode cone I structures, interlude multimode fibre, multimode cone II structures and exit end multimode fibre；The incidence end
Single mode optical fiber receives the optical information that light source is sent out, and passes through incidence end multimode fibre, multimode cone I structures, interlude multimode light successively
Fine, multimode cone II structures and exit end multimode fibre, are finally exported optical information by exit end single-mode fiber.
2. a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature exist according to claim 1
It is the single mode optical fiber of Corning Incorporated's production in the incidence end single-mode fiber and exit end single-mode fiber, core diameter is 8.2 μ
M, cladding diameter are 125 μm, and fiber core refractive index is 1.4502, and cladding index is 1.445.
3. a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature exist according to claim 1
It is that Chang Fei companies produce in the multimode fibre of the incidence end multimode fibre, interlude multimode fibre and exit end multimode fibre
Multimode fibre, core diameter are 50 μm, and cladding diameter is 125 μm, fiber core refractive index 1.4662, and cladding index is
1.45。
4. a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature exist according to claim 1
Multimode fibre length between the single mode optical fiber structure and wimble structure is 0.3-2.0cm.
5. a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature exist according to claim 1
Multimode fibre length between the incidence end single-mode fiber and multimode cone I structures is 0.3-2.0cm；The exit end single mode
Multimode fibre length between optical fiber and multimode cone II structures is 0.3-2.0cm.
6. a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature exist according to claim 1
I structures are bored in the multimode and multimode bores the waist cone a diameter of 65 of II structures5 μm, cone section length is 54010μm。
7. a kind of sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, feature exist according to claim 6
It is 0.375-2.5cm to bore distance between I structures and multimode cone II structures in the multimode.
8. a kind of manufacture craft process of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, it is characterised in that it
Include the following steps：
1）Coat is peelled off by one section and surface is cut complete single mode optical fiber and is placed in the left fixture of optical fiber splicer, then will
One section is peelled off coat and surface is cut complete multimode fibre and is placed in the right fixture of optical fiber splicer, buckles hurricane globe,
Select single mode and the automatic welding procedure of multimode, strength of discharge is 100-120 bit, and discharge time is 200-250 ms, when fritting
Between be 90 ms, automatic welding procedure can complete the welding of incidence end single-mode fiber and incidence end multimode fibre；
2）By step 1）The structure that welding is completed, it is smooth with optical fiber cutter cutting at multimode fibre 1.0-6.5cm, it is placed on light
In the left fixture of fine heat sealing machine, then by one section peels off coat and surface and cut complete single mode optical fiber and be placed on optical fiber splicer
Right fixture in, repeat step 1）, you can complete the welding of exit end multimode fibre and exit end single-mode fiber；
3）By step 2）In the good structure of welding optical fiber splicer is placed at 0.3-2.0cm on the right side of the incidence end of multimode fibre
On electrode bar center, left and right ends are firm using fixture, and wimble structure is beaten in selection manually, and wherein strength of discharge is 80-
100bit, discharge time 1000-1100ms, using precise distance measurement instrument on the right side of first wimble structure of distance 0.375-
Identical second wimble structure of program making is used at 2.5cm, completes the making of sensing arrangement.
9. a kind of manufacture craft of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure according to claim 8
Process, it is characterised in that the step 1）In optical fiber splicer model Fitel-S178C；The step 2）Middle optical fiber is cut
The model of cutter is FC-6S.
10. a kind of test method of the sensor of the multi parameter simultaneous measuring based on multimode and wimble structure, it is characterised in that it is wrapped
Include following steps：
（1）By the sensor structure being welded is smooth and being fixed on temperature control panel without bending；
（2）Incidence end single-mode fiber is connect with light source, then exit end single-mode fiber is connect with spectrometer, every 5 DEG C of records
The temperature range of spectroscopic data on spectrometer, record is 25-70 DEG C；
（3）To step（2）Ten groups of obtained spectroscopic datas carry out analysis and can be obtained the sensitivity that sensor varies with temperature；
（4）The temperature for controlling temperature control panel is 25 DEG C, and sensor structure is impregnated and is fixed under the water bath of test solution,
By changing the concentration of solution, refractive index is measured using Abel's refractive index measuring instrument, and record the spectrum under each refractive index
The ranges of indices of refraction of spectroscopic data on instrument, record is 1.333-1.386, can similarly analyze refractive index parameter sensitivity；
（5）By being fixed on two-dimentional adjustable support for the smooth no bending of sensor structure, the temperature for controlling temperature control panel is
25 DEG C, the axial tensile force for providing 0.01nm using two-dimentional adjustable support every time is equal to change strain 200, record answers
Become ranging from 0-2000, can similarly analyze strain parameter sensitivity；
（6）When light reaches the weld with incidence end multimode fibre 3 from incidence end single-mode fiber 1, due to fiber core size
It changes, makes multimode fibre that high-order core mode, the basic mode continuation of this pattern and fiber core be excited to be passed in multimode fibre
It is defeated, when reaching two wimble structures, since cataclysm occurs for the size of wimble structure fibre core, to excite the cladding mode of multimode fibre
Formula；
（7）When optical transport to exit end multimode fibre 7 and 2 weld of exit end single-mode fiber, due to the covering of multimode fibre
Pattern and high-order core mode have certain phase difference, if the phase difference meets the condition of one Zeng Deer interferometers of Mach,
Then both patterns will interfere；The case where interference, can obtain in spectrogram；Pass through the change of interference pattern in spectrum
Extraneous parameter situation of change can be perceived by changing, and achieve the purpose that sensing with this.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632708A (en) * | 2018-12-27 | 2019-04-16 | 北京信息科技大学 | A kind of Streptavidin concentration detection method based on silane coupled modification |
| CN109632709A (en) * | 2018-12-27 | 2019-04-16 | 北京信息科技大学 | Cow's milk protein concentration detection method based on bipyramid MZI interference structure |
| CN109752034A (en) * | 2019-03-18 | 2019-05-14 | 南昌航空大学 | Refractive index and temperature sensor based on side throwing fiber Mach -Zehnder interferometer |
| CN111239078A (en) * | 2020-02-18 | 2020-06-05 | 南京信息工程大学 | F-P optical fiber interferometer humidity and transverse pressure sensor based on mixing cavity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063238A (en) * | 2012-12-27 | 2013-04-24 | 华中科技大学 | Full-fiber sensor based on Mach-Zehnder interference |
| CN105115939A (en) * | 2015-07-28 | 2015-12-02 | 重庆大学 | Tapered multimode interference-based high-sensitivity optical fiber methane sensing device |
| US20170167899A1 (en) * | 2014-02-10 | 2017-06-15 | University Of Central Florida Research Foundation, Inc. | Multicore optical fiber apparatus, methods, and applications |
| 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 |
| CN107764775A (en) * | 2017-10-18 | 2018-03-06 | 北京航空航天大学 | A kind of index sensor based on U-shaped drawing cone single mode multimode single-mode fiber structure |
-
2018
- 2018-05-04 CN CN201810419463.XA patent/CN108519126A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063238A (en) * | 2012-12-27 | 2013-04-24 | 华中科技大学 | Full-fiber sensor based on Mach-Zehnder interference |
| US20170167899A1 (en) * | 2014-02-10 | 2017-06-15 | University Of Central Florida Research Foundation, Inc. | Multicore optical fiber apparatus, methods, and applications |
| CN105115939A (en) * | 2015-07-28 | 2015-12-02 | 重庆大学 | Tapered multimode interference-based high-sensitivity optical fiber methane sensing device |
| 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 |
| CN107764775A (en) * | 2017-10-18 | 2018-03-06 | 北京航空航天大学 | A kind of index sensor based on U-shaped drawing cone single mode multimode single-mode fiber structure |
Non-Patent Citations (1)
| Title |
|---|
| 李兵: "基于双锥形光纤的多模干涉型光纤传感器的研究", 《中国优秀硕士学位论文全文数据库 信息科技辑（月刊） 自动化技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632708A (en) * | 2018-12-27 | 2019-04-16 | 北京信息科技大学 | A kind of Streptavidin concentration detection method based on silane coupled modification |
| CN109632709A (en) * | 2018-12-27 | 2019-04-16 | 北京信息科技大学 | Cow's milk protein concentration detection method based on bipyramid MZI interference structure |
| CN109752034A (en) * | 2019-03-18 | 2019-05-14 | 南昌航空大学 | Refractive index and temperature sensor based on side throwing fiber Mach -Zehnder interferometer |
| CN109752034B (en) * | 2019-03-18 | 2021-03-12 | 南昌航空大学 | Refractive index and temperature sensor based on side-cast optical fiber Mach-Zehnder interferometer |
| CN111239078A (en) * | 2020-02-18 | 2020-06-05 | 南京信息工程大学 | F-P optical fiber interferometer humidity and transverse pressure sensor based on mixing cavity |
| CN111239078B (en) * | 2020-02-18 | 2022-09-27 | 南京信息工程大学 | F-P optical fiber interferometer humidity and transverse pressure sensor based on mixing cavity |
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