CN205607440U - Optic fibre temperature and humidity sensor and optic fibre humiture sensing system - Google Patents
Optic fibre temperature and humidity sensor and optic fibre humiture sensing system Download PDFInfo
- Publication number
- CN205607440U CN205607440U CN201620366269.6U CN201620366269U CN205607440U CN 205607440 U CN205607440 U CN 205607440U CN 201620366269 U CN201620366269 U CN 201620366269U CN 205607440 U CN205607440 U CN 205607440U
- Authority
- CN
- China
- Prior art keywords
- optic fibre
- ultra
- violet curing
- curing glue
- optical fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an optic fibre temperature and humidity sensor and optic fibre humiture sensing system, optic fibre temperature and humidity sensor are mainly by single mode fiber, four leaves grass micro -structure optic fibre, ultra -violet curing glue film triplex, four leaves grass micro -structure optic fibre one end forms first plane of reflection with single mode fiber butt fusion, weld, the four leaves grass micro -structure optic fibre other end passes through some mode gluey and solidification and prepares the ultra -violet curing glue film, and formation second plane of reflection forms the third plane of reflection between four leaves grass micro -structure optic fibre and the ultra -violet curing glue film between ultra -violet curing glue film and the outside air, form three F by three plane of reflection the P cavity configuration, the utility model discloses possess the integrated level height, it is accurate to measure, sensitivity, and response speed is fast, and characteristics such as anti -electromagnetic interference not only are suitable for the single -point humiture to measure, also can realize the accurate distributing type temperature wetness monitoring of multiple spot.
Description
Technical field
This utility model belongs to sensory field of optic fibre, warm and humid particularly to a kind of optical fiber based on microstructured optical fibers and ultra-violet curing glue
Degree sensor and optical fiber temperature humidity sensing system based on this optical fiber temperature humidity sensor.
Background technology
In recent years, developing rapidly of optical fiber sensing technology has obtained paying close attention to the most widely, compared with traditional electric sensor,
The parameter sensings such as the sensitivity of Fibre Optical Sensor, range of dynamic measurement, response time all have greatly improved, and volume own is little
Lightweight, electromagnetism interference, easily realize the remote quasi-distributed sensing of low cost, thus be widely used in agricultural storage, machinery
The fields such as manufacture, medicine production, Aero-Space and science and techniques of defence.Wherein ambient humidity, as most basic in productive life and weight
The sensing parameter wanted, accurately demodulates one of focus having become Fibre Optical Sensor research field to it.
Based on different structures, there has been proposed multiple light fibre humidity transducer scheme, such as Sens.Actuators B Chem.147,
385 391 (2010) and IEEE Sensors J, these two articles of 13 (5), 2026-2031 (2013) are proposed, base
Combine the sensor design scheme of humidity membrane material, the change of humidity membrane material refractive index in fibre optic interferometer structure, cause interference
The drift of wavelength interfered by instrument, thus demodulates humidity information；And for example Appl.Opt.52 (1), 90-95 (2012) and IEEE Photon.
Tech.Lett.21 (7), what 441-443 (2009) was proposed is based respectively on the film modified long-period gratings of humidity and oblique light
The humidity sensor of grid structure, the change of humidity membrane material refractive index, cause drift or the oblique light of long-period gratings wavelength
The energy attenuation of grid covering mode of resonance, thus demodulate humidity information.But these schemes are all based on transmitted spectrum, exist simultaneously
Bigger temperature or stress cross sensitivity problem, limit the application of reality, the particularly feasibility of distributed sensing.
On the other hand, owing to relative humidity is the function of temperature, the change of temperature can produce considerable influence to humidity value, applies in reality
Occasion, provides temperature and humidity information the most meaningful simultaneously.Therefore realize measuring while ambient temperature and humidity, and be prone to
The Fibre Optical Sensor scheme of distributed networking is particularly important.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, it is provided that a kind of optical fiber temperature humidity sensor and optical fiber temperature humidity
Sensor-based system.
The purpose of this utility model is achieved through the following technical solutions: a kind of optical fiber temperature humidity sensor, it is by single-mode optics
Fibre, Herba Galii Bungei microstructured optical fibers and ultra-violet curing glue-line composition；Herba Galii Bungei microstructured optical fibers one end and single-mode fiber welding, welding
Place forms the first reflecting surface；The Herba Galii Bungei microstructured optical fibers other end fixes ultra-violet curing glue-line, Herba Galii Bungei microstructured optical fibers and ultraviolet
Form the second reflecting surface between solidification glue-line, form the 3rd reflecting surface between ultra-violet curing glue-line and outside air, by three reflections
Face forms three F-P cavity structures；Described Herba Galii Bungei microstructured optical fibers external diameter is 125 microns, and the internal diameter of fiber core is 11 microns,
It is 85 degree that surrounding's symmetry of fiber core has four central angles, and radius is the fan-shaped airport of 64 microns.
A kind of optical fiber temperature humidity sensing system containing above-mentioned optical fiber temperature humidity sensor, also includes wide spectrum light source, spectrogrph, light
Fine bonder, data collection processor and temperature and humidity control box；Two branch ends of fiber coupler respectively with wide spectrum light source and light
Spectrometer is attached, and the conjunction terminal of fiber coupler is connected with optical fiber temperature humidity sensor, and optical fiber temperature humidity sensor is placed in warm and humid
In degree control chamber；Data collection processor is connected with spectrogrph.
This utility model compared with prior art, has the advantages that
1, the Temperature Humidity Sensor based on microstructured optical fibers and ultra-violet curing glue that the utility model proposes is fiber reflection formula structure,
There is the feature such as compact conformation, little, the electromagnetism interference of volume, especially on a large scale, at a distance, be easily achieved under adverse circumstances
Multiple spot quasi-distributed optical fiber senses.
2, the humiture demodulation method that the utility model proposes is carried out based on frequency information, by spectrum is carried out Fourier's change
Get phase information in return, it is achieved temperature and humidity sensing information demodulates.Compared with the demodulation method such as traditional spectral wavelength, intensity, tool
There is higher sensitivity, and for interfering the quasi-distributed sensing of formula, the light formed after the reflective information superposition of multiple sensing heads
Spectrum is mixed and disorderly, is difficult to extract wavelength, Strength Changes information, and when being analyzed in a frequency domain, different cavity long characteristic of correspondence frequency
Can be easily separated and extract, facilitate the demodulation of heat transfer agent, with the obvious advantage.
3, being the function of temperature due to relative humidity, it is the most meaningful that practical application to provide the humidity information at a temperature of certain.
The optical fiber temperature humidity sensor based on microstructured optical fibers and ultra-violet curing glue that the utility model proposes is double F-P chambers structure, permissible
Demodulation temperature and humidity information simultaneously, such that it is able to meet the actual application accurate sensing requirements to humidity.
Accompanying drawing explanation
Fig. 1 is the Herba Galii Bungei microstructured optical fibers schematic cross-section used in this utility model；
Fig. 2 is the structural representation of optical fiber temperature humidity sensor of the present utility model；
Fig. 3 is optical fiber temperature humidity sensing system schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not
It is limited to this.
Accompanying drawing 1 gives Herba Galii Bungei microstructured optical fibers schematic cross-section used in this utility model.The external diameter of this kind of optical fiber is with general
Logical single-mode fiber is identical, is 125 microns, and the internal diameter of fiber core is 11 microns.Owing to the surrounding of fibre core 4 is symmetrical
85 degree of four central angles, the fan-shaped airport 5 of radius 64 microns, therefore naming this kind of special microstructured optical fibers is Herba Galii Bungei
Microstructured optical fibers.
Accompanying drawing 2 gives optical fiber temperature humidity sensor based on Herba Galii Bungei microstructured optical fibers and ultra-violet curing glue of the present utility model
Structural representation, it is mainly made up of single-mode fiber 1, Herba Galii Bungei microstructured optical fibers 2, ultra-violet curing glue-line 3 three part.Single mode
Optical fiber 1 and Herba Galii Bungei optical fiber 2 utilize optical fiber splicer to carry out welding, due to a diameter of the 11 of Herba Galii Bungei microstructured optical fibers fibre core 4
Micron, with single-mode fiber sandwich layer diameter mismatch, is therefore here formed as first reflecting surface 6.Under microscope, by for dispensing glue
Mode prepares ultra-violet curing glue-line 3 in Herba Galii Bungei microstructured optical fibers 2 rear end, and solidifies under ultraviolet curing lamp, forms four
The second reflecting surface 7 between leaf grass microstructured optical fibers 2 and ultra-violet curing glue-line 3, and between ultra-violet curing glue-line 3 and air
The 3rd reflecting surface 8.Three the F-P cavity structures formed by three reflectings surface 6,7,8, finally constitute light of the present utility model
Fine F-P type Temperature Humidity Sensor.
As shown in Figure 3, the temperature and humidity sensing system of above-mentioned optical fiber temperature humidity sensor 13 is utilized to include wide spectrum light source 10, light
Fine bonder 12, spectrogrph 11, data collection processor 15 and temperature and humidity control box 14.First by fiber coupler 12
Two branch end 12-1,12-2 is attached with wide spectrum light source 10 and spectrogrph 11 respectively, then the conjunction by fiber coupler 12
Terminal 12-3 is connected with optical fiber temperature humidity sensor 13, finally optical fiber temperature humidity sensor 13 is put into temperature and humidity control box 14
In, carry out temperature and humidity test, then the transfer spectral information received by spectrogrph 11 counts in data collection processor 15
According to analysis.
The Temperature Humidity Sensor based on microstructured optical fibers and ultra-violet curing glue that the utility model proposes is fiber reflection formula structure, tool
Have features such as little, the electromagnetism interference of compact conformation, volume, especially on a large scale, at a distance, be easily achieved under adverse circumstances many
Point quasi-distributed optical fiber sensing.
Claims (2)
1. an optical fiber temperature humidity sensor, it is characterised in that it is by single-mode fiber (1), Herba Galii Bungei microstructured optical fibers (2)
Form with ultra-violet curing glue-line (3)；Described Herba Galii Bungei microstructured optical fibers (2) one end and single-mode fiber (1) welding, weld
Form the first reflecting surface (6)；Herba Galii Bungei microstructured optical fibers (2) other end fixes ultra-violet curing glue-line (3), Herba Galii Bungei micro structure
Form the second reflecting surface (7) between optical fiber (2) and ultra-violet curing glue-line (3), ultra-violet curing glue-line (3) and outside air it
Between form the 3rd reflecting surface (8), three reflectings surface (6,7,8) form three F-P cavity structures；Described Herba Galii Bungei micro structure
Fibre external diameters is 125 microns, and the internal diameter of fiber core is 11 microns, and surrounding's symmetry of fiber core has four central angles and is
85 degree, radius is the fan-shaped airport (5) of 64 microns.
2. the optical fiber temperature humidity sensing system containing optical fiber temperature humidity sensor described in claim 1, it is characterised in that also
Including wide spectrum light source (10), spectrogrph (11), fiber coupler (12), data collection processor (15) and Temperature and Humidity Control
Case (14)；Two branch ends (12-1,12-2) of fiber coupler (12) respectively with wide spectrum light source (10) and spectrogrph (11)
Connecting, the conjunction terminal (12-3) of fiber coupler (12) is connected with optical fiber temperature humidity sensor (13), and optical fiber temperature humidity passes
Sensor (13) is placed in temperature and humidity control box (14)；Data collection processor (15) is connected with spectrogrph (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366269.6U CN205607440U (en) | 2016-04-26 | 2016-04-26 | Optic fibre temperature and humidity sensor and optic fibre humiture sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366269.6U CN205607440U (en) | 2016-04-26 | 2016-04-26 | Optic fibre temperature and humidity sensor and optic fibre humiture sensing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205607440U true CN205607440U (en) | 2016-09-28 |
Family
ID=56971142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620366269.6U Expired - Fee Related CN205607440U (en) | 2016-04-26 | 2016-04-26 | Optic fibre temperature and humidity sensor and optic fibre humiture sensing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205607440U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781299A (en) * | 2018-12-21 | 2019-05-21 | 北京航天易联科技发展有限公司 | A kind of white wine pit optical fiber temperature humidity detection topological system and method |
| CN114088136A (en) * | 2021-11-16 | 2022-02-25 | 哈尔滨工程大学 | Temperature and humidity double-parameter sensor and preparation method and application thereof |
-
2016
- 2016-04-26 CN CN201620366269.6U patent/CN205607440U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781299A (en) * | 2018-12-21 | 2019-05-21 | 北京航天易联科技发展有限公司 | A kind of white wine pit optical fiber temperature humidity detection topological system and method |
| CN114088136A (en) * | 2021-11-16 | 2022-02-25 | 哈尔滨工程大学 | Temperature and humidity double-parameter sensor and preparation method and application thereof |
| CN114088136B (en) * | 2021-11-16 | 2024-03-26 | 哈尔滨工程大学 | Temperature and humidity double-parameter sensor and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105806414B (en) | Optical fiber Temperature Humidity Sensor, temperature and humidity sensing system and humiture demodulation method | |
| CN205691170U (en) | A kind of air pressure and the Fibre Optical Sensor of temperature simultaneously measuring | |
| CN100367016C (en) | Fibre-optical temperature measuring device and measurement thereof | |
| CN107515054B (en) | Optical fiber temperature and refractive index measurement sensing device based on Michelson interferometer | |
| CN102226725B (en) | Inner-wall waveguide long-time cycle fiber grating sensor | |
| Lang et al. | Ultra-compact, fast-responsive and highly-sensitive humidity sensor based on a polymer micro-rod on the end-face of fiber core | |
| CN102221679A (en) | Magnetofluid filling photonic crystal optical fiber F-P magnetic field sensor | |
| CN203287311U (en) | Double-cone fine-core single mode fiber based transmission-type optical fiber humidity sensor | |
| CN113029381B (en) | High-precision temperature sensor based on quartz tube package PDMS cavity and air cavity | |
| CN208155479U (en) | The fiber optic temperature and pressure sensor of double cavity structure | |
| CN205262638U (en) | A two core photonic crystal optical fiber sensor for being directed at temperature and simultaneous measurement of meeting an emergency | |
| CN104297208A (en) | Interferometric optical fiber sensor based on pohotonic crystal optical fiber | |
| CN110319786A (en) | A kind of strain sensing Fabry-Perot interferometer and the strain sensing method based on the interferometer | |
| Arrizabalaga et al. | Miniature interferometric humidity sensor based on an off-center polymer cap onto optical fiber facet | |
| CN110455346A (en) | It is a kind of for measuring the fibre optical sensor of seawater thermohaline depth | |
| CN202041222U (en) | In-wall waveguide long-period fiber grating sensor | |
| CN111337060A (en) | Hybrid sensor based on vernier effect of parallel structure and manufacturing method thereof | |
| CN102269700A (en) | Capillary fiber refractive index sensor | |
| CN103852428A (en) | Humidity sensor based on multimode fiber core and fiber grating and preparation method of humidity sensor | |
| CN108731840A (en) | Fiber optic temperature and pressure sensor of double cavity structure and preparation method thereof | |
| Tong et al. | Surface plasmon resonance optical fiber sensor for relative humidity detection without temperature crosstalk | |
| CN205607440U (en) | Optic fibre temperature and humidity sensor and optic fibre humiture sensing system | |
| CN209279916U (en) | A kind of fibre cladding SPR microbend sensor and its caliberating device | |
| CN202794029U (en) | Optical fiber humidity sensor for humidity detection device | |
| CN208238740U (en) | The tapered optical fibre bending sensor of dual hump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20210426 |