CN106989795A - A kind of Hollow-Core Photonic Crystal Fibers liquid level sensor and its making, application method - Google Patents
A kind of Hollow-Core Photonic Crystal Fibers liquid level sensor and its making, application method Download PDFInfo
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- CN106989795A CN106989795A CN201710141150.8A CN201710141150A CN106989795A CN 106989795 A CN106989795 A CN 106989795A CN 201710141150 A CN201710141150 A CN 201710141150A CN 106989795 A CN106989795 A CN 106989795A
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- photonic crystal
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- 239000000835 fiber Substances 0.000 title claims abstract description 136
- 239000004038 photonic crystal Substances 0.000 title claims abstract description 91
- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000005253 cladding Methods 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 13
- 238000001228 spectrum Methods 0.000 claims abstract description 8
- 230000005499 meniscus Effects 0.000 claims abstract description 4
- 230000003595 spectral effect Effects 0.000 claims abstract description 4
- 239000013307 optical fiber Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000002679 ablation Methods 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 7
- 239000002360 explosive Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000345998 Calamus manan Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a kind of Hollow-Core Photonic Crystal Fibers liquid level sensor, including Hollow-Core Photonic Crystal Fibers, absolute alcohol, Hollow-Core Photonic Crystal Fibers two ends and single-mode fiber welding are filled with the air cladding layer of Hollow-Core Photonic Crystal Fibers.Present invention also offers the making and use method of Hollow-Core Photonic Crystal Fibers liquid level sensor, the single-mode fiber at two ends is connected into light source and spectrometer respectively, using middle filling the Hollow-Core Photonic Crystal Fibers of absolute alcohol the meniscus region to be measured is placed on as probe vertical；When probe is immersed into liquid, the spectrum collected by light source and spectrometer can produce the phenomenon that spectral depth shoals with the increase of submergence, thus monitor the change of liquid level.The present invention is by the use of the Hollow-Core Photonic Crystal Fibers filled by absolute alcohol as probe, and measurement accuracy is high, and service life is long, will not be influenceed by electromagnetic interference, can also use safely, have wide range of applications in inflammable and explosive environment.
Description
Technical field
The present invention relates to the e measurement technology neck of technical field of optical fiber sensing, more particularly to optical fiber measurement environment liquid level
Domain.
Background technology
The scope that level gauging is related to widely, including level gauging industrially and in terms of environmental monitoring
Using.Current liquid level is including radio-frequency capacity liquid level gauge, called putting-into-type liquid level meter, magnetostriction liquidometer, super in respect of many kinds
Sonic liquid-level meter etc..The above two are to change electric capacity or resistance value using hydraulic pressure, so that hydraulic pressure is changed at electric signal output
Reason, both are then to calculate liquid level by measuring the time difference between transmitting electric pulse afterwards.The liquid level based on electric treatment is passed above
Sensor typically all contains the processes such as the conversion of electric signal, the transmission of electric signal and processing, then may in practical application
Influenceed by electromagnetic interference.In addition the easy aging of electronic device, or by special liquid corrosion, it is necessary to which corresponding packaging technology is come
Ensure the service life of device.
With the development of industrial technology, the kind of fluid to be measured is more and more, especially flammable hydrocarbon, liquid
Toxic liquid in terms of chemical fuel and biochemistry etc..Senser element based on electric signal is used in inflammable and explosive environment
When need plus very big explosion-protection equipment, using being limited by very large.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of service life length, security is good, the base that has wide range of applications
In the liquid level sensor of Hollow-Core Photonic Crystal Fibers.
In order to solve the above-mentioned technical problem, passed the technical scheme is that providing a kind of Hollow-Core Photonic Crystal Fibers liquid level
Sensor, it is characterised in that：Including Hollow-Core Photonic Crystal Fibers, it is filled with the air cladding layer of Hollow-Core Photonic Crystal Fibers without watery wine
Essence, Hollow-Core Photonic Crystal Fibers two ends and single-mode fiber welding.
Preferably, the Hollow-Core Photonic Crystal Fibers are by the air-core, air cladding layer and stone that set gradually from inside to outside
English framework is constituted.
Preferably, during the cross section of the air cladding layer of the Hollow-Core Photonic Crystal Fibers includes central hollow stomata and is located at
Entreat the peripheral air hole made a circle in airport week.
It is highly preferred that being filled with the absolute alcohol in the central hollow stomata and at least one peripheral air hole.
Present invention also offers the preparation method of above-mentioned Hollow-Core Photonic Crystal Fibers liquid level sensor, it is characterised in that step
Suddenly it is：
Step 1：Two end faces of Hollow-Core Photonic Crystal Fibers are cut flat with whole, then used Hollow-Core Photonic Crystal Fibers one end
Glue is sealed；After glue is dry, the specified airport for being directed at air cladding layer from fiber end face using femtosecond laser carries out ablation, from
And remove the glue for sealing the airport；
Step 2：This section of treated Hollow-Core Photonic Crystal Fibers are immersed in absolute alcohol, hollow optic fibre is utilized
The capillarity of airport sucks alcohol in the airport specified；
Step 3：After alcohol filling is completed, one end of the ablated mistake of Hollow-Core Photonic Crystal Fibers is cut flat with, then by sky
The two ends of heart photonic crystal fiber and single-mode fiber welding.
Preferably, in the step 1, two end faces of Hollow-Core Photonic Crystal Fibers are cut flat with into whole specific method is：Choosing
One section of Hollow-Core Photonic Crystal Fibers is taken, the armor coated of Hollow-Core Photonic Crystal Fibers is got rid of, and with the hollow light of alcohol wipe
Photonic crystal fiber surface is to remove coat residue；One end of Hollow-Core Photonic Crystal Fibers is cut flat with it is whole, then from the end
Another smooth end face is cut out at the setpoint distance of face.
Preferably, in the step 3, when Hollow-Core Photonic Crystal Fibers and single-mode fiber welding it is noted that：Due to single-mode optics
It is fine different with the diameter of Hollow-Core Photonic Crystal Fibers, to ensure that both fibre cores are faced, and prevent dislocation from causing during manual alignment
Multiple-mode interfence.
Preferably, in the step 3, when Hollow-Core Photonic Crystal Fibers are with single-mode fiber welding, splicing parameter is set to put
The unit of electric strength 20, discharge time 700ms, it is ensured that the airport of Hollow-Core Photonic Crystal Fibers is not collapsed.
Present invention also offers the application method of above-mentioned Hollow-Core Photonic Crystal Fibers liquid level sensor, it is characterised in that：Institute
In the single-mode fiber for stating Hollow-Core Photonic Crystal Fibers liquid level sensor two ends, one end connection light source, the other end is used by circulator
Spectrometer receives reflected light, and the fiber segment for filling absolute alcohol is placed on into tested liquid level position as probe vertical；When
When probe is immersed into liquid, it is deep that the spectrum collected by light source and spectrometer can produce spectrum with the increase of submergence
The phenomenon shoaled is spent, the change of liquid level is thus monitored.
Preferably, the single-mode fiber of one end connects light source as entering apparatus；The single-mode fiber end face of the other end is gold-plated,
Reflecting surface is constituted, the light reflected is connected to spectrometer by circulator；The middle hollow light filled by absolute alcohol
Photonic crystal fiber is placed on the meniscus region to be measured as probe vertical；Light source incidence exists to the light of Hollow-Core Photonic Crystal Fibers
The silica clad on the outside of air cladding layer can be diffused into when running into the alcohol of filling, and by silica clad and the air bag filled
F-P vibrations are produced in the F-P cavity that layer is collectively forming, so as to produce loss peak at a series of wavelength；Filled out when by absolute alcohol
When the Hollow-Core Photonic Crystal Fibers filled are immersed in liquid environment, the reflectivity on Hollow-Core Photonic Crystal Fibers surface can be reduced,
Weaken the intensity of vibration, so as to change the depth of spectral reflectance peak.
The need for according to practical application, the Hollow-Core Photonic Crystal Fibers of different length can be used as sensor probe,
To meet different measurement ranges.
The device that the present invention is provided overcomes the deficiencies in the prior art, brilliant using the hollow photon filled by absolute alcohol
Body optical fiber is as probe, and measurement accuracy is high, and service life is long, will not be influenceed by electromagnetic interference, even in inflammable and explosive
It can also use safely, have wide range of applications in environment.
Brief description of the drawings
Fig. 1 is Hollow-Core Photonic Crystal Fibers liquid level sensor front view；
Fig. 2 is Hollow-Core Photonic Crystal Fibers liquid level sensor cross-sectional view；
Fig. 3 is that Hollow-Core Photonic Crystal Fibers liquid level sensor carries out using schematic diagram during level gauging；
Fig. 4 is the result schematic diagram that Hollow-Core Photonic Crystal Fibers liquid level sensor carries out level gauging.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
As depicted in figs. 1 and 2, Hollow-Core Photonic Crystal Fibers liquid level sensor includes Hollow-Core Photonic Crystal Fibers 1, common list
Mode fiber 3 and absolute alcohol 2, the air cladding layers of Hollow-Core Photonic Crystal Fibers 1 two ends and single-mode fiber after filling absolute alcohol 2
3 weldings constitute sensor.
Hollow-Core Photonic Crystal Fibers are produced for Yangtze Optical Fiber and Cable Company Ltd, and Hollow-Core Photonic Crystal Fibers cross section is included
Make a circle in the regular hexagon airport in center and week six crown-shaped airports.Hollow-Core Photonic Crystal Fibers external diameter is 140 μ
M, a diameter of 70 μm of air cladding layer, a diameter of 22 μm of air-core, the thickness of quartzy framework is 370 μm.
The standard single-mode fiber that single-mode fiber provides for Yangtze Optical Fiber and Cable Company Ltd, 125 μm of outer cladding diameter, fibre core
8 μm of diameter.The making to sensor is described further below in conjunction with the accompanying drawings, and introduces the present invention in liquid by taking level measuring as an example
Application in terms of the measurement of position.
The making step of Hollow-Core Photonic Crystal Fibers liquid level sensor is as follows：
First, Hollow-Core Photonic Crystal Fibers are pre-processed.One end Hollow-Core Photonic Crystal Fibers are chosen, optical fiber is got rid of using blade
It is armor coated, and with alcohol wipe optical fiber surface to remove coat residue.Will using Sumitomo FC-6S optical fiber cutters
One end of optical fiber cuts flat with whole, then another smooth end face is cut out at from the segment distance of end face one, specifically apart from root
Depending on being actually needed, 4cm is chosen in the present embodiment.
2nd, the filling of Hollow-Core Photonic Crystal Fibers.Above-mentioned treated optical fiber one end is sealed with 502 glue.Treat glue
After dry, the airport for being directed at air cladding layer from fiber end face using femtosecond laser carries out ablation, so that the airport will be sealed
Glue is removed.Then this treated section is immersed in absolute alcohol, will using the capillarity of the airport of hollow optic fibre
In the airport that alcohol suction is specified.Soak time is within 1 minute, you can realize preferable filling effect.Under actual conditions,
Typically do not require to accomplish all to fill all airports around, as long as because having a peripheral air hole and central hollow stomata quilt
Filling can tell on.
3rd, the welding of general single mode fiber.The Hollow-Core Photonic Crystal Fibers filled finally need and single-mode fiber welding
Get up and complete the making of whole device.First, after alcohol filling is completed, one end that optical fiber processing is crossed is cut with cutter
It is flat.Welding is completed using the manual operation function of rattan storehouse FSM-60S optical fiber splicers.Because single-mode fiber and hollow photon are brilliant
The diameter of body optical fiber is different, to ensure that both fibre cores are faced, and prevent dislocation from causing multiple-mode interfence during manual alignment.Welding is joined
Number is set to the unit of strength of discharge 20, discharge time 700ms, it is ensured that Hollow-Core Photonic Crystal Fibers airport is not collapsed.Will filling
The Hollow-Core Photonic Crystal Fibers two ends crossed all are completed the making of sensor by single-mode fiber in above-mentioned requirements welding.
Level measuring is carried out using the Hollow-Core Photonic Crystal Fibers liquid level sensor being made, specific method is as follows：
As shown in Fig. 2 the single-mode fiber at Hollow-Core Photonic Crystal Fibers liquid level sensor two ends is connected into light source (ALS- respectively
1550-20) with spectrometer (Yokogawa AQ6370B), by the probe segment of sensor --- the hollow optic fibre A filled, hangs down
Directly it is placed on the liquid level part to be surveyed.When the water surface starts submergence hollow optic fibre, the spectrum of sensor can produce change accordingly,
The increase for the depth that the depth of spectrum can be submerged with hollow optic fibre and reduce, when this section of optical fiber is completely submerged in water, light
Spectrum depth is reduced to 0.The depth response of whole process spectrum shows very linear, as shown in Figure 3, it is seen that hollow photon crystal light
Fine liquid level sensor has preferable linear response and higher sensitivity, and measurement accuracy can arrive millimeter magnitude.
The single-mode fiber of one end connects light source as entering apparatus；The single-mode fiber end face of the other end is gold-plated, constitutes reflection
Face, the light reflected is connected to spectrometer by circulator；The middle hollow photon crystal light filled by absolute alcohol
Fibre is placed on the meniscus region to be measured as probe vertical；Light source incidence is running into filling to the light of Hollow-Core Photonic Crystal Fibers
Alcohol when can be diffused into the silica clad on the outside of air cladding layer, and by silica clad and the common shape of air cladding layer filled
Into F-P cavity in produce F-P vibration so that at a series of wavelength produce loss peak；When the sky filled by absolute alcohol
When heart photonic crystal fiber is immersed in liquid environment, the reflectivity on Hollow-Core Photonic Crystal Fibers surface can be reduced, and weaken vibration
Intensity, so as to change the depth of spectral reflectance peak.
Claims (10)
1. a kind of Hollow-Core Photonic Crystal Fibers liquid level sensor, it is characterised in that：It is hollow including Hollow-Core Photonic Crystal Fibers (1)
Absolute alcohol (2), Hollow-Core Photonic Crystal Fibers (1) two ends and single-mode optics are filled with the air cladding layer of photonic crystal fiber (1)
Fine (3) welding.
2. a kind of Hollow-Core Photonic Crystal Fibers liquid level sensor as claimed in claim 1, it is characterised in that：The hollow photon
Crystal optical fibre (1) is made up of the air-core, air cladding layer and silica clad set gradually from inside to outside.
3. a kind of Hollow-Core Photonic Crystal Fibers liquid level sensor as claimed in claim 1 or 2, it is characterised in that：It is described hollow
Outside the circle comprising central hollow stomata and around central hollow stomata of the cross section of the air cladding layer of photonic crystal fiber (1)
Enclose airport.
4. a kind of Hollow-Core Photonic Crystal Fibers liquid level sensor as claimed in claim 3, it is characterised in that：The center air
The absolute alcohol (2) is filled with hole and at least one peripheral air hole.
5. a kind of preparation method of Hollow-Core Photonic Crystal Fibers liquid level sensor as described in any one of Claims 1 to 4, it is special
Levy and be, step is：
Step 1：Two end faces of Hollow-Core Photonic Crystal Fibers are cut flat with it is whole, then by Hollow-Core Photonic Crystal Fibers one end glue
Seal；After glue is dry, the specified airport for being directed at air cladding layer from fiber end face using femtosecond laser carries out ablation, so that will
The glue for sealing the airport is removed；
Step 2：This section of treated Hollow-Core Photonic Crystal Fibers are immersed in absolute alcohol, the air of hollow optic fibre is utilized
The capillarity in hole sucks alcohol in the airport specified；
Step 3：After alcohol filling is completed, one end of the ablated mistake of Hollow-Core Photonic Crystal Fibers is cut flat with, then by hollow light
The two ends of photonic crystal fiber and single-mode fiber welding.
6. the preparation method of Hollow-Core Photonic Crystal Fibers liquid level sensor as claimed in claim 5, it is characterised in that：The step
In rapid 1, two end faces of Hollow-Core Photonic Crystal Fibers are cut flat with into whole specific method is：Choose one section of hollow photon crystal light
Fibre, gets rid of the armor coated of Hollow-Core Photonic Crystal Fibers, and with alcohol wipe Hollow-Core Photonic Crystal Fibers surface to remove
Coat residue；One end of Hollow-Core Photonic Crystal Fibers is cut flat with whole, then cut out in addition at from the end face setpoint distance
One smooth end face.
7. the preparation method of Hollow-Core Photonic Crystal Fibers liquid level sensor as claimed in claim 5, it is characterised in that：The step
In rapid 3, when Hollow-Core Photonic Crystal Fibers and single-mode fiber welding it is noted that：Due to single-mode fiber and Hollow-Core Photonic Crystal Fibers
Diameter is different, to ensure that both fibre cores are faced, and prevent dislocation from causing multiple-mode interfence during manual alignment.
8. the preparation method of Hollow-Core Photonic Crystal Fibers liquid level sensor as claimed in claim 5, it is characterised in that：The step
In rapid 3, when Hollow-Core Photonic Crystal Fibers are with single-mode fiber welding, splicing parameter is set to the unit of strength of discharge 20, discharge time
700ms, it is ensured that the airport of Hollow-Core Photonic Crystal Fibers is not collapsed.
9. a kind of application method of Hollow-Core Photonic Crystal Fibers liquid level sensor as described in any one of Claims 1 to 4, it is special
Levy and be：In the single-mode fiber at the Hollow-Core Photonic Crystal Fibers liquid level sensor two ends, one end connection light source, the other end passes through
Circulator receives reflected light with spectrometer, and the fiber segment for filling absolute alcohol is placed on into tested liquid level as probe vertical
Position；When probe is immersed into liquid, the spectrum collected by light source and spectrometer can be produced with the increase of submergence
The third contact of a total solar or lunar eclipse composes the phenomenon of depth shallower, thus monitors the change of liquid level.
10. the application method of Hollow-Core Photonic Crystal Fibers liquid level sensor as claimed in claim 9, it is characterised in that：One end
Single-mode fiber be used as entering apparatus, connect light source；The single-mode fiber end face of the other end is gold-plated, constitutes reflecting surface, reflects
Light spectrometer is connected to by circulator；The middle Hollow-Core Photonic Crystal Fibers filled by absolute alcohol hang down as probe
Directly it is placed on the meniscus region to be measured；Light source incidence can expand to the light of Hollow-Core Photonic Crystal Fibers when running into the alcohol of filling
The silica clad on the outside of air cladding layer is scattered to, and in the F-P cavity being collectively forming by silica clad and the air cladding layer filled
F-P vibrations are produced, so as to produce loss peak at a series of wavelength；When the hollow photon crystal light filled by absolute alcohol
When fibre is immersed in liquid environment, the reflectivity on Hollow-Core Photonic Crystal Fibers surface can be reduced, and weaken the intensity of vibration, so as to change
Become the depth of spectral reflectance peak.
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| CN201710141150.8A CN106989795A (en) | 2017-03-10 | 2017-03-10 | A kind of Hollow-Core Photonic Crystal Fibers liquid level sensor and its making, application method |
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| CN201710141150.8A CN106989795A (en) | 2017-03-10 | 2017-03-10 | A kind of Hollow-Core Photonic Crystal Fibers liquid level sensor and its making, application method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279079A (en) * | 2018-01-08 | 2018-07-13 | 东北大学 | A kind of point type temperature sensing device coating dimethyl silicone polymer based on coreless fiber radial direction serious mistake bit architecture |
| CN109974814A (en) * | 2019-04-12 | 2019-07-05 | 重庆理工大学 | Michelson liquid level sensor and measurement method are responded based on multiple-mode interfence low temperature |
| CN112816094A (en) * | 2020-12-31 | 2021-05-18 | 瑞尔通(苏州)医疗科技有限公司 | Sensing optical fiber, sensing assembly, sensor and decoupling method thereof |
| CN113030545A (en) * | 2021-03-04 | 2021-06-25 | 哈尔滨工业大学 | Current sensor based on magnetic fluid filled side hole optical fiber |
| CN114755188A (en) * | 2022-05-19 | 2022-07-15 | 华北电力大学 | All-fiber probe for dissolved gas in-situ detection without liquid-gas separation |
| CN116519088A (en) * | 2023-07-03 | 2023-08-01 | 深圳市柏金科技有限公司 | Passive wading sensor, detection method and liquid level measurement system |
| CN116608891A (en) * | 2023-07-20 | 2023-08-18 | 山东省科学院激光研究所 | Optical fiber F-P cavity sensor and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957227A (en) * | 2010-10-22 | 2011-01-26 | 南京信息工程大学 | Photonic crystal fiber optic liquid level sensor and sensing system formed by same |
| CN104297208A (en) * | 2014-10-21 | 2015-01-21 | 天津理工大学 | Interferometric optical fiber sensor based on pohotonic crystal optical fiber |
| CN106482808A (en) * | 2016-09-12 | 2017-03-08 | 武汉工程大学 | A kind of liquid level sensor based on quartzy glass capillary and preparation method |
-
2017
- 2017-03-10 CN CN201710141150.8A patent/CN106989795A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957227A (en) * | 2010-10-22 | 2011-01-26 | 南京信息工程大学 | Photonic crystal fiber optic liquid level sensor and sensing system formed by same |
| CN104297208A (en) * | 2014-10-21 | 2015-01-21 | 天津理工大学 | Interferometric optical fiber sensor based on pohotonic crystal optical fiber |
| CN106482808A (en) * | 2016-09-12 | 2017-03-08 | 武汉工程大学 | A kind of liquid level sensor based on quartzy glass capillary and preparation method |
Non-Patent Citations (4)
| Title |
|---|
| Y. J. RAO: "In-Line Fiber-Optic Etalon Formed By Hollow-Core Photonic crystal fiber", 《2007 ASIA OPTICAL FIBER COMMUNICATION AND OPTOELECTRONICS CONFERENCE》 * |
| 于文兵等: "选择性填充光子晶体光纤应变特性研究", 《电子学报》 * |
| 钱文文: "光子晶体光纤偏振特性及其应用", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
| 陈雪: "干涉型微结构光纤传感器的传感特性研究", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279079A (en) * | 2018-01-08 | 2018-07-13 | 东北大学 | A kind of point type temperature sensing device coating dimethyl silicone polymer based on coreless fiber radial direction serious mistake bit architecture |
| CN109974814A (en) * | 2019-04-12 | 2019-07-05 | 重庆理工大学 | Michelson liquid level sensor and measurement method are responded based on multiple-mode interfence low temperature |
| CN109974814B (en) * | 2019-04-12 | 2021-05-04 | 重庆理工大学 | Low-temperature response Michelson liquid level sensor based on multimode interference and measuring method |
| CN112816094A (en) * | 2020-12-31 | 2021-05-18 | 瑞尔通(苏州)医疗科技有限公司 | Sensing optical fiber, sensing assembly, sensor and decoupling method thereof |
| CN113030545A (en) * | 2021-03-04 | 2021-06-25 | 哈尔滨工业大学 | Current sensor based on magnetic fluid filled side hole optical fiber |
| CN114755188A (en) * | 2022-05-19 | 2022-07-15 | 华北电力大学 | All-fiber probe for dissolved gas in-situ detection without liquid-gas separation |
| CN116519088A (en) * | 2023-07-03 | 2023-08-01 | 深圳市柏金科技有限公司 | Passive wading sensor, detection method and liquid level measurement system |
| CN116519088B (en) * | 2023-07-03 | 2023-10-17 | 深圳市柏金科技有限公司 | Passive wading sensor, detection method and liquid level measurement system |
| CN116608891A (en) * | 2023-07-20 | 2023-08-18 | 山东省科学院激光研究所 | Optical fiber F-P cavity sensor and manufacturing method thereof |
| CN116608891B (en) * | 2023-07-20 | 2023-11-03 | 山东省科学院激光研究所 | Optical fiber F-P cavity sensor and manufacturing method thereof |
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