ES2150386B1 - SENSOR FOR THE MEASUREMENT OF THE REFRACTION INDEX AND THE TEMPERATURE OF A FLUID, CONSISTING IN A MIRROR CARVED AT THE END OF AN OPTICAL FIBER AND ONE OR VARIOUS BRAGG DIFFACTION NETWORKS ENROLLED IN THE FIBER. - Google Patents
SENSOR FOR THE MEASUREMENT OF THE REFRACTION INDEX AND THE TEMPERATURE OF A FLUID, CONSISTING IN A MIRROR CARVED AT THE END OF AN OPTICAL FIBER AND ONE OR VARIOUS BRAGG DIFFACTION NETWORKS ENROLLED IN THE FIBER.Info
- Publication number
- ES2150386B1 ES2150386B1 ES9802520A ES9802520A ES2150386B1 ES 2150386 B1 ES2150386 B1 ES 2150386B1 ES 9802520 A ES9802520 A ES 9802520A ES 9802520 A ES9802520 A ES 9802520A ES 2150386 B1 ES2150386 B1 ES 2150386B1
- Authority
- ES
- Spain
- Prior art keywords
- sensor
- fiber
- optical
- carved
- networks
- 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
- 239000012530 fluid Substances 0.000 title abstract 2
- 239000013307 optical fiber Substances 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 5
- 238000001228 spectrum Methods 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
Sensor para la medida del índice de refracción, o del índice de refracción y la temperatura de un fluido o mezcla reactante, consistente en un espejo tallado en el extremo de una fibra óptica y una o varias redes de difracción de Bragg inscritas en el núcleo de la fibra. La interrogación del sensor se realiza mediante un dispositivo que consiste en una fuente de luz blanca (no monocromática), un dispositivo analizador de espectro óptico, un acoplador óptico y, de forma optativa, un dispositivo de multiplexación óptica. El sensor permite obtener el índice de refracción del medio en que se encuentra inmerso su extremo especular a través de las variaciones de la potencia óptica reflejada en el mismo y detectadas por el analizador, mientras que los espectros de reflexión de la red o redes de difracción integradas en el sensor operan como señales de referencia que permiten discriminar y compensar los posibles errores debidos a fluctuaciones de potencia de la fuente de luz o perturbaciones en elcamino óptico. Adicionalmente, el dispositivo descrito puede operar como sensor de temperatura, midiendo el desplazamiento de la longitud de onda de Bragg de la red o redes más cercanas al espejo tallado.Sensor for measuring the refractive index, or the refractive index and the temperature of a fluid or reactant mixture, consisting of a mirror carved at the end of an optical fiber and one or more Bragg diffraction networks inscribed in the core of the fiber. The interrogation of the sensor is carried out by means of a device consisting of a white light source (non-monochromatic), an optical spectrum analyzer device, an optical coupler and, optionally, an optical multiplexing device. The sensor allows to obtain the refractive index of the medium in which its specular end is immersed through the variations of the optical power reflected in it and detected by the analyzer, while the reflection spectra of the network or diffraction networks integrated into the sensor they operate as reference signals that allow discriminating and compensating for possible errors due to power fluctuations of the light source or disturbances in the optical path. Additionally, the described device can operate as a temperature sensor, measuring the displacement of the Bragg wavelength of the network or networks closer to the carved mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9802520A ES2150386B1 (en) | 1998-12-01 | 1998-12-01 | SENSOR FOR THE MEASUREMENT OF THE REFRACTION INDEX AND THE TEMPERATURE OF A FLUID, CONSISTING IN A MIRROR CARVED AT THE END OF AN OPTICAL FIBER AND ONE OR VARIOUS BRAGG DIFFACTION NETWORKS ENROLLED IN THE FIBER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9802520A ES2150386B1 (en) | 1998-12-01 | 1998-12-01 | SENSOR FOR THE MEASUREMENT OF THE REFRACTION INDEX AND THE TEMPERATURE OF A FLUID, CONSISTING IN A MIRROR CARVED AT THE END OF AN OPTICAL FIBER AND ONE OR VARIOUS BRAGG DIFFACTION NETWORKS ENROLLED IN THE FIBER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2150386A1 ES2150386A1 (en) | 2000-11-16 |
| ES2150386B1 true ES2150386B1 (en) | 2001-06-01 |
Family
ID=8305978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9802520A Expired - Fee Related ES2150386B1 (en) | 1998-12-01 | 1998-12-01 | SENSOR FOR THE MEASUREMENT OF THE REFRACTION INDEX AND THE TEMPERATURE OF A FLUID, CONSISTING IN A MIRROR CARVED AT THE END OF AN OPTICAL FIBER AND ONE OR VARIOUS BRAGG DIFFACTION NETWORKS ENROLLED IN THE FIBER. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2150386B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7184135B2 (en) | 2000-09-29 | 2007-02-27 | Commissariat A L'energie Atomique | Refractometer with blazed bragg gratings |
| FR2814810B1 (en) * | 2000-09-29 | 2003-01-03 | Commissariat Energie Atomique | BRAGG NETWORK REFRACTOMETER WITH INCLINED FEATURES |
| CA2368970A1 (en) * | 2001-10-02 | 2003-04-02 | Commissariat A L'energie Atomique | Refractometer with blazed bragg gratings |
| SG178187A1 (en) * | 2009-08-03 | 2012-03-29 | Nitto Denko Corp | A sensor element |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4996419A (en) * | 1989-12-26 | 1991-02-26 | United Technologies Corporation | Distributed multiplexed optical fiber Bragg grating sensor arrangeement |
| US5361130A (en) * | 1992-11-04 | 1994-11-01 | The United States Of America As Represented By The Secretary Of The Navy | Fiber grating-based sensing system with interferometric wavelength-shift detection |
| US5426297A (en) * | 1993-09-27 | 1995-06-20 | United Technologies Corporation | Multiplexed Bragg grating sensors |
| FI955511A (en) * | 1994-11-17 | 1996-05-18 | Alcatel Cable | A method of detecting and / or measuring physical quantities with a scattered sensor |
-
1998
- 1998-12-01 ES ES9802520A patent/ES2150386B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2150386A1 (en) | 2000-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Leal-Junior et al. | Characterization of a new polymer optical fiber with enhanced sensing capabilities using a Bragg grating | |
| US20070280605A1 (en) | Fiber bragg grating sensor interrogator and manufacture thereof | |
| Shao et al. | Optical refractive-index sensor based on dual fiber-Bragg gratings interposed with a multimode-fiber taper | |
| WO2008111320A1 (en) | Optical fiber sensor | |
| US10969254B2 (en) | Fiber Bragg grating interrogation and sensing system and methods comprising a filter centered at a first wavelength | |
| CN101881634A (en) | High-speed multi-channel fiber bragg grating (FBG) sensing demodulation system based on AWG (Arrayed Waveguide Grating) and method | |
| CN100470191C (en) | All-fiber Fizeau interference confocal measuring device | |
| CN101290288B (en) | Wavelength selector | |
| CN102243102A (en) | Photoelectric measuring device capable of measuring power and wavelength at same time | |
| ES2150386B1 (en) | SENSOR FOR THE MEASUREMENT OF THE REFRACTION INDEX AND THE TEMPERATURE OF A FLUID, CONSISTING IN A MIRROR CARVED AT THE END OF AN OPTICAL FIBER AND ONE OR VARIOUS BRAGG DIFFACTION NETWORKS ENROLLED IN THE FIBER. | |
| CN201043884Y (en) | All-fiber Fizeau interferometric confocal measurement device | |
| ES2636713A1 (en) | PHOTONIC SENSOR DEVICE, SAMPLE ANALYSIS METHOD THAT MAKES SAME USE AND USES OF SUCH DEVICE | |
| US9244002B1 (en) | Optical method and system for measuring an environmental parameter | |
| Vanegas-Tenezaca et al. | High resolution liquid level measurement using a multisection interferometer based on capillary fibers | |
| NO313606B1 (en) | Wavelength controlled FBG filter | |
| CN102226763B (en) | AWG-based star-shaped topological quasi-distributed multipoint refractive index sensing system | |
| CN202041283U (en) | Photoelectric measuring device capable of measuring power and wave length simultaneously | |
| JPH0953999A (en) | Optical external force detector | |
| CN103487167B (en) | A kind of Miniature optical module for hyperchannel distributed optical fiber temperature sensing system | |
| KR100991516B1 (en) | Fiber Optic Interferometer Sensor | |
| Takada et al. | Optical low-coherence reflectometry using a gaussian bandpass filter for measuring WDM components | |
| JPS5915841A (en) | Refractive index measuring apparatus | |
| JPS62159027A (en) | Detecting device for degree of deterioration of oil | |
| Ghena et al. | Comparative study of structures temperature monitoring using FBG array and distributed sensing in real time | |
| RU132202U1 (en) | FIBER OPTICAL REFRACTOMETER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 20001116 Kind code of ref document: A1 Effective date: 20001116 |
|
| FD2A | Announcement of lapse in spain |
Effective date: 20190326 |