CN105371981A - Inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor - Google Patents
Inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor Download PDFInfo
- Publication number
- CN105371981A CN105371981A CN201510817418.6A CN201510817418A CN105371981A CN 105371981 A CN105371981 A CN 105371981A CN 201510817418 A CN201510817418 A CN 201510817418A CN 105371981 A CN105371981 A CN 105371981A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- liquid crystal
- silver
- hollow glass
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides an inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor and belongs to the optical fiber sensing technical field. According to the structure of the sensor, the interior of a hollow glass optical fiber is plated with silver, and the silver-plated hollow glass optical fiber is filled with liquid crystal; the inner diameter of the hollow glass optical fiber ranges from 300 microns to 500 microns, the numerical aperture of the hollow glass optical fiber is not lower than 0.27, and the length of the hollow glass optical fiber ranges from 30 mm to 50 mm; sensitization treatment is performed on the inner wall of the hollow glass optical fiber, and a 45nm-to 80nm uniform silver film is formed in the optical fiber through adopting a liquid phase chemical deposition method, and therefore, a sensing layer of surface plasmon resonance can be formed; and the hollow optical fiber is filled with thermotropic nematic liquid crystal, and plastic-clad multimode optical fibers are coupled to the ports of the optical fiber respectively, and end sealing processing is realized. With the inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor adopted, subtle temperature changes can be dynamically monitored in real time. The inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor is suitable for long-distance transmission. According to the inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor, special inner wall silver plating technology is adopted, and the hollow optical fiber is filled with the thermotropic liquid crystal, and therefore, the oxidation of the external silver layer of the solid optical fiber surface plasma resonance sensor can be avoided.
Description
Technical field
The invention belongs to technical field of optical fiber sensing, the liquid crystal relating to the silver-plated formula of a kind of inwall fills hollow optic fibre surface plasma body resonant vibration temperature sensor.
Background technology
Current temperature sensor many employings thermistor and thermopair are as sensing element, and such transducer sensitivity is low, measuring error large, be subject to environmental interference, is difficult in field widespread uses such as biochemistry; And fibre optic temperature sensor relies on other sensitive elements to realize modulation function mostly, there is optical fiber and sensing head coupled problem in such sensor, and complex structure is too responsive to disturbances such as mechanical vibration; Though there is at present the fibre optic temperature sensor based on Surface Plasmon Resonance Technology, but adopt the reflective probe structure of solid core fibres, complex structure, response time are long, and the degree of accuracy of detection is also poor more; And though filling liquid crystal photonic crystal fiber temperature sensor has report, but due to the inner aperture of photonic crystal fiber narrow and small, it is large to fill difficulty, and the impact of the factors such as cost of manufacture is high is difficult to widespread use.
Summary of the invention
The liquid crystal that the object of this invention is to provide the silver-plated formula of a kind of inwall fills hollow optic fibre surface plasma body resonant vibration temperature sensor, can realize the change of real-time dynamic monitoring slight temperature, be applicable to long range propagation; Adopt the silver-plated technical matters of special inwall and thermotropic liquid crystal is packed into hollow glass optical fiber, avoiding the oxidation of the outside silver layer of solid core fibres surface plasma resonance sensor; Adopt optical patchcord signal transmission, avoid the labyrinth of prism coupled type surface plasma resonance sensor, realize long apart from anti-interference transmission; By the characteristic that liquid-crystal refractive-index responds temperature variation, realize the real-time response process of sensor for temperature.
The technical solution adopted in the present invention is:
The silver-plated liquid crystal of a kind of inwall fills hollow optic fibre surface plasma body resonant vibration temperature sensor, and this sensor adopts hollow glass optical fiber structure, and the inside of hollow glass optical fiber is silver-plated, at silver-plated hollow glass inside of optical fibre filling liquid crystal; Adopt the hollow glass inside of optical fibre deposition 45-80nm silverskin of liquid-phase chemistry deposition technique after inwall sensitized treatment, form the sensing layer of surface plasma body resonant vibration; Again thermic nematic liquid crystal is packed in hollow glass optical fiber, at two port coupling plastic envelope multimode optical fibers of hollow glass optical fiber, to two-port termination process; Wherein the core diameter of plastic envelope multimode optical fiber is consistent with hollow glass optical fiber internal diameter; The internal diameter of hollow glass optical fiber is 300 μm-500 μm, numerical aperture be not less than 0.27 and length be 30mm-50mm.
Multimode optical fiber wire jumper is adopted to carry out the coupled transfer of signal.The wide spectrum optical that optical fiber source is launched fills hollow optic fibre surface plasma body resonant vibration temperature sensor through a liquid crystal entering the silver-plated formula of inwall of optical patchcord, with inwall silver plating film interface excitation surface plasma body resonant vibration in sensing passage liquid crystal, transducing signal is transferred to the sensor other end by inside liquid crystal, is coupled on spectrometer CCD detects through wire jumper one.
Effect of the present invention and benefit are:
Adopt comparatively simple liquid-phase chemistry deposition technique to achieve the silver-plated technology of inwall of hollow optic fibre, changed by regulating and controlling temperature, realize the response of liquid-crystal refractive-index for temperature, thus realize the quick response of surface plasma body resonant vibration signal.Small and exquisite simple, the stable performance of this sensor construction, technique is simple, easy to make and cost is lower, and has higher sensitivity to sensing detection.Adopt liquid crystal temperature sensing, the environmental interference factor impacts such as magnetic field can be got rid of, realize the temperature-responsive real-time of long distance.
Accompanying drawing explanation
Accompanying drawing is that the liquid crystal of the silver-plated formula of inwall fills hollow optic fibre surface plasma body resonant vibration arrangement of temperature sensor schematic diagram.
In figure: 1 plastic envelope multimode optical fiber; 2 silverskin; 3 liquid crystal; 4 hollow glass optical fiber.
Embodiment
The specific embodiment of the present invention is described in detail below in conjunction with technical scheme and accompanying drawing.
The present invention is using surface plasma body resonant vibration as sensing principle, and the generation of this effect depends on wide spectrum light source, and object is the sensing detection realizing wavelength-modulated mode in a fiber.Liquid crystal, as sensor information, has the temperature variant characteristic of refractive index; By the response of surface plasmon resonance effect for refractive index, the situation of change of temperature of reaction.In order to strengthen signal intensity, optimize sensing capabilities, the hollow optic fibre making sensor selects large diameter kapillary.Hollow optic fibre optical fiber internal diameter 500 μm, external diameter 700 μm, numerical aperture 0.37 that the present invention adopts.Plastic envelope multimode optical fiber fibre core, covering, coat diameter are respectively 500 μm, 530 μm, 830 μm, numerical aperture 0.37.Liquid crystal adopts row to thermotropic liquid crystal 4'-n-pentyl-4-cyanobiphenyl (5CB).
Preparation process of the present invention is as follows:
(1) first get the hollow glass optical fiber of one section of 50mm, polished by two of hollow glass optical fiber end face sand paper, after the cleaning of ethanol, acetone, dichloromethane solution successively repeated ultrasonic, nitrogen dries up for subsequent use.
(2) by hollow glass Fiber connection on peristaltic pump, pass into sensitizing solution and deionized water successively; Liquid deposition film plating process is adopted silverskin to be deposited on hollow glass optical fiber inwall; Time and the temperature of accurate control silver mirror reaction ensure that coating film thickness is about 50nm.
(3) get two sections of 80mm plastic envelope multimode optical fibers, peel off two ends respectively and obtain coat, then polished by the end face sand paper of optical fiber, after the cleaning of ethanol, acetone, dichloromethane solution successively repeated ultrasonic, nitrogen dries up for subsequent use.
(4) liquid crystal is packed into by peristaltic pump and is coated with in the hollow glass optical fiber of silverskin, the plastic envelope multimode optical fiber handled well is accessed respectively termination process after two-port, prevents liquid crystal from flowing out.
(5) said structure is accessed the coupled transfer that multimode optical fiber wire jumper carries out signal, one end connects wide spectrum light source, and other end connection spectrometer CCD detects.
Claims (3)
1. liquid crystal fills the silver-plated hollow optic fibre surface plasma body resonant vibration temperature sensor of inwall, it is characterized in that, this sensor adopts hollow glass optical fiber structure, and the inside of hollow glass optical fiber is silver-plated, at silver-plated hollow glass inside of optical fibre filling liquid crystal.
2. a kind of liquid crystal according to claim 1 fills the silver-plated hollow optic fibre surface plasma body resonant vibration temperature sensor of inwall, it is characterized in that, adopt the hollow glass inside of optical fibre deposition 45-80nm silverskin of liquid-phase chemistry deposition technique after inwall sensitized treatment, form the sensing layer of surface plasma body resonant vibration; Again thermic nematic liquid crystal is packed in hollow glass optical fiber, at two port coupling plastic envelope multimode optical fibers of hollow glass optical fiber, to two-port termination process; Wherein the core diameter of plastic envelope multimode optical fiber is consistent with hollow glass optical fiber internal diameter.
3. a kind of liquid crystal according to claim 1 and 2 fills the silver-plated hollow optic fibre surface plasma body resonant vibration temperature sensor of inwall, it is characterized in that, the internal diameter of hollow glass optical fiber is 300 μm-500 μm, the numerical aperture of hollow glass optical fiber is not less than 0.27, and the length of hollow glass optical fiber is 30mm-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817418.6A CN105371981A (en) | 2015-11-23 | 2015-11-23 | Inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817418.6A CN105371981A (en) | 2015-11-23 | 2015-11-23 | Inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105371981A true CN105371981A (en) | 2016-03-02 |
Family
ID=55374381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510817418.6A Pending CN105371981A (en) | 2015-11-23 | 2015-11-23 | Inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105371981A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052903A (en) * | 2016-08-24 | 2016-10-26 | 哈尔滨工业大学（威海） | Ultra-small-size optical fiber temperature sensing probe and preparation method thereof |
| CN106679846A (en) * | 2016-12-29 | 2017-05-17 | 中国农业大学 | Side-polished polymer temperature sensing fiber and manufacturing method thereof |
| CN106840410A (en) * | 2017-01-23 | 2017-06-13 | 京东方科技集团股份有限公司 | A kind of temperature sensor and its temperature checking method |
| CN107238448A (en) * | 2017-05-08 | 2017-10-10 | 东南大学 | A kind of SMD temperature of metal phasmon and infrared ray sensor |
| CN107255532A (en) * | 2017-05-08 | 2017-10-17 | 东南大学 | A kind of SMD luminance temperature of metal phasmon and infrared ray sensor |
| CN107525605A (en) * | 2017-10-26 | 2017-12-29 | 深圳大学 | A kind of temperature sensor based on surface plasma body resonant vibration and preparation method thereof |
| CN108562374A (en) * | 2018-04-12 | 2018-09-21 | 南昌航空大学 | A kind of temperature sensor coupled with nematic liquid crystal droplet based on D-type optical fiber |
| CN109029778A (en) * | 2018-10-15 | 2018-12-18 | 辽宁省计量科学研究院 | A kind of temperature measuring device and method based on surface plasma body resonant vibration |
| CN109115363A (en) * | 2018-10-15 | 2019-01-01 | 辽宁省计量科学研究院 | A kind of fibre optic temperature sensor based on surface plasma body resonant vibration and strain compensation |
| CN109323776A (en) * | 2018-11-07 | 2019-02-12 | 哈尔滨工程大学 | Fibre optic temperature sensor and preparation method thereof based on liquid crystal Fabry-Bo Luo resonant cavity |
| WO2019080049A1 (en) * | 2017-10-26 | 2019-05-02 | 深圳大学 | Temperature sensor based on surface plasma resonance and production method thereof |
| CN111006716A (en) * | 2019-11-14 | 2020-04-14 | 东北大学 | Biomolecule and temperature double-parameter optical fiber sensor and manufacturing method and application thereof |
| CN111220296A (en) * | 2020-01-21 | 2020-06-02 | 金华伏安光电科技有限公司 | Microcavity type temperature sensor and system |
| CN112432715A (en) * | 2020-11-19 | 2021-03-02 | 哈尔滨理工大学 | SPR (surface plasmon resonance) -based D-type photonic crystal fiber temperature sensing device and method |
| JP7361388B2 (en) | 2020-02-18 | 2023-10-16 | 公立大学法人大阪 | Sensors, sensor manufacturing methods, pressure or temperature measurement systems and measurement methods |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030133639A1 (en) * | 2002-01-17 | 2003-07-17 | Shiquan Tao | Optical fiber sensor having a sol-gel fiber core and a method of making |
| CN101261165A (en) * | 2008-04-24 | 2008-09-10 | 上海交通大学 | Concentration tunable mixing liquid core optical fiber temperature sensor |
| CN201653583U (en) * | 2010-03-29 | 2010-11-24 | 温州大学 | Temperature measuring probe and temperature monitoring system for high-voltage electrical apparatus |
| CN102288326A (en) * | 2011-07-07 | 2011-12-21 | 天津大学 | Method and sensor for measuring temperature of photonic crystal fiber (PCF) filled with mixed solution |
| CN102288546A (en) * | 2011-07-07 | 2011-12-21 | 天津大学 | Polymer photonic crystal fiber surface plasma resonance testing method and sensor |
| CN102590930A (en) * | 2012-02-28 | 2012-07-18 | 天津理工大学 | Surface plasma oscillation based photonic crystal fiber |
| CN104020160A (en) * | 2014-06-10 | 2014-09-03 | 复旦大学 | Hollow-core optical-fiber sensing cavity for chemiluminescent sensing detection |
| CN204116743U (en) * | 2014-01-09 | 2015-01-21 | 浙江师范大学 | Tunable band leads to optical fiber filter |
| CN104614092A (en) * | 2015-02-12 | 2015-05-13 | 哈尔滨理工大学 | Modular interface temperature sensor of liquid-core optical fiber |
-
2015
- 2015-11-23 CN CN201510817418.6A patent/CN105371981A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030133639A1 (en) * | 2002-01-17 | 2003-07-17 | Shiquan Tao | Optical fiber sensor having a sol-gel fiber core and a method of making |
| CN101261165A (en) * | 2008-04-24 | 2008-09-10 | 上海交通大学 | Concentration tunable mixing liquid core optical fiber temperature sensor |
| CN201653583U (en) * | 2010-03-29 | 2010-11-24 | 温州大学 | Temperature measuring probe and temperature monitoring system for high-voltage electrical apparatus |
| CN102288326A (en) * | 2011-07-07 | 2011-12-21 | 天津大学 | Method and sensor for measuring temperature of photonic crystal fiber (PCF) filled with mixed solution |
| CN102288546A (en) * | 2011-07-07 | 2011-12-21 | 天津大学 | Polymer photonic crystal fiber surface plasma resonance testing method and sensor |
| CN102590930A (en) * | 2012-02-28 | 2012-07-18 | 天津理工大学 | Surface plasma oscillation based photonic crystal fiber |
| CN204116743U (en) * | 2014-01-09 | 2015-01-21 | 浙江师范大学 | Tunable band leads to optical fiber filter |
| CN104020160A (en) * | 2014-06-10 | 2014-09-03 | 复旦大学 | Hollow-core optical-fiber sensing cavity for chemiluminescent sensing detection |
| CN104614092A (en) * | 2015-02-12 | 2015-05-13 | 哈尔滨理工大学 | Modular interface temperature sensor of liquid-core optical fiber |
Non-Patent Citations (1)
| Title |
|---|
| 蒋永翔 等: "镀银空心光纤表面等离子体共振传感器的研究", 《光学学报》 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052903A (en) * | 2016-08-24 | 2016-10-26 | 哈尔滨工业大学（威海） | Ultra-small-size optical fiber temperature sensing probe and preparation method thereof |
| CN106679846A (en) * | 2016-12-29 | 2017-05-17 | 中国农业大学 | Side-polished polymer temperature sensing fiber and manufacturing method thereof |
| CN106840410A (en) * | 2017-01-23 | 2017-06-13 | 京东方科技集团股份有限公司 | A kind of temperature sensor and its temperature checking method |
| CN107238448B (en) * | 2017-05-08 | 2019-06-21 | 东南大学 | A kind of metal phasmon patch type temperature and infrared sensor |
| CN107255532B (en) * | 2017-05-08 | 2019-04-30 | 东南大学 | A kind of metal phasmon patch type luminance temperature and infrared sensor |
| CN107255532A (en) * | 2017-05-08 | 2017-10-17 | 东南大学 | A kind of SMD luminance temperature of metal phasmon and infrared ray sensor |
| CN107238448A (en) * | 2017-05-08 | 2017-10-10 | 东南大学 | A kind of SMD temperature of metal phasmon and infrared ray sensor |
| CN107525605A (en) * | 2017-10-26 | 2017-12-29 | 深圳大学 | A kind of temperature sensor based on surface plasma body resonant vibration and preparation method thereof |
| WO2019080049A1 (en) * | 2017-10-26 | 2019-05-02 | 深圳大学 | Temperature sensor based on surface plasma resonance and production method thereof |
| CN108562374A (en) * | 2018-04-12 | 2018-09-21 | 南昌航空大学 | A kind of temperature sensor coupled with nematic liquid crystal droplet based on D-type optical fiber |
| CN109029778A (en) * | 2018-10-15 | 2018-12-18 | 辽宁省计量科学研究院 | A kind of temperature measuring device and method based on surface plasma body resonant vibration |
| CN109115363A (en) * | 2018-10-15 | 2019-01-01 | 辽宁省计量科学研究院 | A kind of fibre optic temperature sensor based on surface plasma body resonant vibration and strain compensation |
| CN109115363B (en) * | 2018-10-15 | 2023-09-22 | 辽宁省计量科学研究院 | Optical fiber temperature sensor based on surface plasmon resonance and strain compensation |
| CN109323776A (en) * | 2018-11-07 | 2019-02-12 | 哈尔滨工程大学 | Fibre optic temperature sensor and preparation method thereof based on liquid crystal Fabry-Bo Luo resonant cavity |
| CN111006716A (en) * | 2019-11-14 | 2020-04-14 | 东北大学 | Biomolecule and temperature double-parameter optical fiber sensor and manufacturing method and application thereof |
| CN111006716B (en) * | 2019-11-14 | 2020-10-27 | 东北大学 | Biomolecule and temperature double-parameter optical fiber sensor and manufacturing method and application thereof |
| CN111220296A (en) * | 2020-01-21 | 2020-06-02 | 金华伏安光电科技有限公司 | Microcavity type temperature sensor and system |
| JP7361388B2 (en) | 2020-02-18 | 2023-10-16 | 公立大学法人大阪 | Sensors, sensor manufacturing methods, pressure or temperature measurement systems and measurement methods |
| CN112432715A (en) * | 2020-11-19 | 2021-03-02 | 哈尔滨理工大学 | SPR (surface plasmon resonance) -based D-type photonic crystal fiber temperature sensing device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105371981A (en) | Inner wall-silver plated and liquid crystal-filled hollow optical fiber surface plasmon resonance temperature sensor | |
| Zhou et al. | High-sensitivity SPR temperature sensor based on hollow-core fiber | |
| Zhao et al. | Review of no-core optical fiber sensor and applications | |
| Hu et al. | Fiber optic SPR sensor for refractive index and temperature measurement based on MMF-FBG-MMF structure | |
| CN102226725B (en) | Inner-wall waveguide long-time cycle fiber grating sensor | |
| CN103439765B (en) | A kind of All-optical-fiber type multi-path interferometer | |
| CN110864742B (en) | All-fiber temperature and salt depth sensor based on micro-nano fiber coupler interferometer | |
| CN107860492A (en) | A kind of photonic crystal fiber temperature sensor based on SPR | |
| CN110108669A (en) | Double SPR effect fibre optical sensors and its method a kind of while that measure seawater salinity and temperature | |
| CN106896277A (en) | A kind of electric-field sensor based on micro-nano optical fiber evanescent field and electro-optic polymer | |
| CN202041222U (en) | In-wall waveguide long-period fiber grating sensor | |
| CN109632133A (en) | A kind of temperature measuring device and method based on optical fiber | |
| CN109781300A (en) | It is a kind of based on optical fiber while measure temperature and curvature device and method | |
| CN108955774A (en) | Reflection-type optical fibre sensor for seawater salinity and temperature simultaneously measuring | |
| CN103852428A (en) | Humidity sensor based on multimode fiber core and fiber grating and preparation method of humidity sensor | |
| CN102944328A (en) | Preparation method and measurement device for temperature sensor insensitive to refractive index | |
| CN103925985A (en) | Vibrating sensor based on core-free optical fiber and detection device based on vibrating sensor | |
| CN111398222A (en) | Optical fiber refractive index sensor based on Mach-Zehnder interferometry | |
| CN105510281A (en) | Inner-silvered outer-gilded capillary multi-mode-detection surface plasma resonance sensor | |
| CN104776954A (en) | Optically-excited fiber grating cantilever beam harmonic oscillator vacuum degree sensor | |
| CN109164068A (en) | A kind of symmetrical expression long-distance surface plasmon resonance sensor | |
| CN110044441A (en) | A kind of plastic optical fiber liquid level sensor of more tooth type structures and preparation method thereof | |
| CN103134776B (en) | Liquid refractive index absolute measurement sensor based on D-type polarization maintaining optical fibre | |
| CN109596206B (en) | Vibration sensor based on liquid filled photonic crystal fiber | |
| CN105445678A (en) | Magnetic field sensor based on optical fiber reflection type surface plasma resonance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |