CA2639131C - 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
- CA2639131C CA2639131C CA2639131A CA2639131A CA2639131C CA 2639131 C CA2639131 C CA 2639131C CA 2639131 A CA2639131 A CA 2639131A CA 2639131 A CA2639131 A CA 2639131A CA 2639131 C CA2639131 C CA 2639131C
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- CA
- Canada
- Prior art keywords
- polarization
- pulse
- light
- phase
- sensor
- Prior art date
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- Active
Links
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- 238000012545 processing Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title abstract description 38
- 230000003287 optical effect Effects 0.000 claims description 33
- 229940125730 polarisation modulator Drugs 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 2
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- 230000002999 depolarising effect Effects 0.000 description 4
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- 230000006870 function Effects 0.000 description 2
- 238000012886 linear function Methods 0.000 description 2
- 230000028161 membrane depolarization Effects 0.000 description 2
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- 101100202242 Danio rerio rxrba gene Proteins 0.000 description 1
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Classifications
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- 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 informations relatives à une matrice de réponses 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.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/649,590 | 2003-08-27 | ||
| 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 |
| US10/649,590 US7088878B2 (en) | 2003-08-27 | 2003-08-27 | Method and apparatus for producing depolarized light |
| CA002479081A CA2479081C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002479081A Division CA2479081C (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 |
|---|---|
| CA2639131A1 CA2639131A1 (fr) | 2005-02-27 |
| CA2639131C true CA2639131C (fr) | 2010-01-26 |
Family
ID=33135364
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2639131A Active CA2639131C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques |
| CA002479245A Active CA2479245C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif produisant de la lumiere depolarisee |
| CA002479081A Active 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 After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002479245A Active CA2479245C (fr) | 2003-08-27 | 2004-08-25 | Methode et dispositif produisant de la lumiere depolarisee |
| CA002479081A Active CA2479081C (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) | CA2639131C (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 |
| JP6374985B2 (ja) * | 2014-04-28 | 2018-08-15 | オプトプラン・アー・エス | 干渉計型光ファイバセンサシステムおよびインテロゲーションの方法 |
| WO2016086310A1 (fr) * | 2014-12-04 | 2016-06-09 | Hifi Engineering Inc. | Interrogateur optique permettant de réaliser une interférométrie au moyen de réseaux 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 CA2639131A patent/CA2639131C/fr active Active
- 2004-08-25 CA CA002479245A patent/CA2479245C/fr active Active
- 2004-08-25 CA CA002479081A patent/CA2479081C/fr active Active
- 2004-08-26 GB GB0419047A patent/GB2405469B/en active Active
- 2004-08-27 GB GB0419163A patent/GB2406166B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2479081A1 (fr) | 2005-02-27 |
| GB2406166B (en) | 2006-07-05 |
| CA2479081C (fr) | 2008-11-25 |
| GB0419047D0 (en) | 2004-09-29 |
| GB2405469A (en) | 2005-03-02 |
| CA2479245C (fr) | 2010-01-12 |
| GB2406166A (en) | 2005-03-23 |
| CA2639131A1 (fr) | 2005-02-27 |
| CA2479245A1 (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 |