CA2479081C - Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques - Google Patents
Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques Download PDFInfo
- Publication number
- CA2479081C CA2479081C CA002479081A CA2479081A CA2479081C CA 2479081 C CA2479081 C CA 2479081C CA 002479081 A CA002479081 A CA 002479081A CA 2479081 A CA2479081 A CA 2479081A CA 2479081 C CA2479081 C CA 2479081C
- Authority
- CA
- Canada
- Prior art keywords
- sensor
- polarization
- signal
- interferometric
- pulse
- 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 - Lifetime
Links
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Classifications
-
- 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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/344—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using polarisation
- G01D5/345—Polarising encoders
-
- 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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35303—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices
-
- 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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Procédé et appareil qui utilisent la modulation de source spécifique et des détecteurs pour détecter une réponse qui transporte des renseignements relatifs à une matrice de réponse du système associée à chaque capteur dans un réseau de capteurs interférométriques et pour extraire une réponse de capteur d'une manière qui élimine l'évanouissement du signal induit par la polarisation et qui est insensible aux fluctuations de biréfringence de la fibre de plomb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2639131A CA2639131C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/649,590 | 2003-08-27 | ||
| US10/649,590 US7088878B2 (en) | 2003-08-27 | 2003-08-27 | Method and apparatus for producing depolarized light |
| US10/650,117 | 2003-08-27 | ||
| US10/650,117 US7081959B2 (en) | 2003-08-27 | 2003-08-27 | Method and apparatus for providing polarization insensitive signal processing for interferometric sensors |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2639131A Division CA2639131C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2479081A1 CA2479081A1 (fr) | 2005-02-27 |
| CA2479081C true CA2479081C (fr) | 2008-11-25 |
Family
ID=33135364
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002479245A Expired - Lifetime CA2479245C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif produisant de la lumiere depolarisee |
| CA2639131A Expired - Lifetime CA2639131C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques |
| CA002479081A Expired - Lifetime CA2479081C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002479245A Expired - Lifetime CA2479245C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif produisant de la lumiere depolarisee |
| CA2639131A Expired - Lifetime CA2639131C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques |
Country Status (2)
| Country | Link |
|---|---|
| CA (3) | CA2479245C (fr) |
| GB (2) | GB2405469B (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7466425B2 (en) | 2005-04-22 | 2008-12-16 | Agilent Technologies, Inc. | Elementary matrix based optical signal/network analyzer |
| WO2015165924A1 (fr) * | 2014-04-28 | 2015-11-05 | Optoplan As | Système de capteurs interférométriques à fibres optiques et procédé d'interrogation |
| CA2968996A1 (fr) | 2014-12-04 | 2016-06-09 | Hifi Engineering Inc. | Interrogateur optique permettant de realiser une interferometrie au moyen de reseaux de bragg sur fibre |
| GB2568305B (en) | 2017-11-13 | 2022-06-15 | Univ Cranfield | A fibre optic sensing device |
| CN109631962B (zh) * | 2018-12-20 | 2020-12-04 | 中国人民解放军国防科技大学 | 一种基于pgc方案的多频载波偏振调制解调系统及方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5173743A (en) * | 1991-05-28 | 1992-12-22 | Litton Systems, Inc. | Fiber optical time-division-multiplexed unbalanced pulsed interferometer with polarization fading compensation |
| EP0570151B1 (fr) * | 1992-05-08 | 1997-10-29 | Kokusai Denshin Denwa Co., Ltd | Emetteur optique avec un signal lumineux de degré de polarisation réduit et circuit optique de dépolarisation |
| US6574015B1 (en) * | 1998-05-19 | 2003-06-03 | Seagate Technology Llc | Optical depolarizer |
| NO322073B1 (no) * | 1999-06-23 | 2006-08-07 | Optoplan As | Fremgangsmate for polarisasjonskontroll |
| CA2393172C (fr) * | 2002-07-12 | 2008-11-04 | Itf Technologies Optiques Inc.- Itf Optical Technologies Inc. | Depolariseur tout en fibres de conception lineaire |
-
2004
- 2004-08-25 CA CA002479245A patent/CA2479245C/fr not_active Expired - Lifetime
- 2004-08-25 CA CA2639131A patent/CA2639131C/fr not_active Expired - Lifetime
- 2004-08-25 CA CA002479081A patent/CA2479081C/fr not_active Expired - Lifetime
- 2004-08-26 GB GB0419047A patent/GB2405469B/en not_active Expired - Lifetime
- 2004-08-27 GB GB0419163A patent/GB2406166B/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB2406166A (en) | 2005-03-23 |
| CA2639131C (fr) | 2010-01-26 |
| CA2479245A1 (fr) | 2005-02-27 |
| CA2639131A1 (fr) | 2005-02-27 |
| GB0419047D0 (en) | 2004-09-29 |
| GB2405469A (en) | 2005-03-02 |
| GB2406166B (en) | 2006-07-05 |
| CA2479245C (fr) | 2010-01-12 |
| CA2479081A1 (fr) | 2005-02-27 |
| GB0419163D0 (en) | 2004-09-29 |
| GB2405469B (en) | 2006-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |