BRILLOUIN OPTICAL DISTRIBUTED SENSING DEVICE AND METHOD WITH IMPROVED TOLERANCE TO SENSOR FAILURE
The present invention concerns a Brillouin optical distributed sensing device (1), comprising means (2, 3, 4, 9) for generating an optical pulsed signal and an optical probe signal, and circulation means (10) for directing said optical pulsed signal to a sensing optical fiber (21) and for directing...
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| creator | NIKLES, MARC BRIFFOD, FABIEN SANGHOON, CHIN ROCHAT, ETIENNE MONTAVON, JEANARLES |
| description | The present invention concerns a Brillouin optical distributed sensing device (1), comprising means (2, 3, 4, 9) for generating an optical pulsed signal and an optical probe signal, and circulation means (10) for directing said optical pulsed signal to a sensing optical fiber (21) and for directing an optical measurement signal with Brillouin scattering information arising from said sensing optical fiber (21) toward detection means (18, 19), the device further comprising optical routing means (5) for configuring the device (1) so as to allow generating: (i) according to a first configuration, an optical measurement signal with stimulated Brillouin scattering information resulting from the interaction of the optical pulsed signal and an optical probe signal propagating in said sensing optical fiber (21) in a direction opposite to the optical pulsed signal, or (ii) according to a second configuration, an optical measurement signal with spontaneous Brillouin scattering information resulting from the propagation of the optical pulsed signal in the sensing optical fiber (21). The present invention concerns also a Brillouin optical distributed sensing method.
La présente invention concerne un dispositif de détection distribué optique de Brillouin (1) qui comporte des moyens (2, 3, 4, 9) pour générer un signal pulsé optique et un signal de sonde optique, et un moyen de circulation (10) pour diriger ledit signal pulsé optique vers une fibre optique de détection (21) et pour diriger un signal de mesure optique comprenant des informations de diffusion Brillouin provenant de ladite fibre optique de détection (21) vers les moyens de détection (18, 19), le dispositif comportant en outre un moyen d'acheminement optique (5) pour configurer le dispositif (1) afin de permettre de générer : (i) selon une première configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin stimulée résultant de l'interaction du signal pulsé optique et d'un signal de sonde optique se propageant dans ladite fibre optique de détection (21) vers une direction opposée au signal pulsé optique, ou (ii) selon une seconde configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin spontanée résultant de la propagation du signal pulsé optique dans la fibre optique de détection (21). La présente invention concerne également un procédé de détection distribuée optique de Brillouin. |
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La présente invention concerne un dispositif de détection distribué optique de Brillouin (1) qui comporte des moyens (2, 3, 4, 9) pour générer un signal pulsé optique et un signal de sonde optique, et un moyen de circulation (10) pour diriger ledit signal pulsé optique vers une fibre optique de détection (21) et pour diriger un signal de mesure optique comprenant des informations de diffusion Brillouin provenant de ladite fibre optique de détection (21) vers les moyens de détection (18, 19), le dispositif comportant en outre un moyen d'acheminement optique (5) pour configurer le dispositif (1) afin de permettre de générer : (i) selon une première configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin stimulée résultant de l'interaction du signal pulsé optique et d'un signal de sonde optique se propageant dans ladite fibre optique de détection (21) vers une direction opposée au signal pulsé optique, ou (ii) selon une seconde configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin spontanée résultant de la propagation du signal pulsé optique dans la fibre optique de détection (21). La présente invention concerne également un procédé de détection distribuée optique de Brillouin.</description><language>eng ; fre</language><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ; MEASURING ; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE ; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE ; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR ; PHYSICS ; TARIFF METERING APPARATUS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><creationdate>2014</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140925&DB=EPODOC&CC=WO&NR=2014146676A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140925&DB=EPODOC&CC=WO&NR=2014146676A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NIKLES, MARC</creatorcontrib><creatorcontrib>BRIFFOD, FABIEN</creatorcontrib><creatorcontrib>SANGHOON, CHIN</creatorcontrib><creatorcontrib>ROCHAT, ETIENNE</creatorcontrib><creatorcontrib>MONTAVON, JEANARLES</creatorcontrib><title>BRILLOUIN OPTICAL DISTRIBUTED SENSING DEVICE AND METHOD WITH IMPROVED TOLERANCE TO SENSOR FAILURE</title><description>The present invention concerns a Brillouin optical distributed sensing device (1), comprising means (2, 3, 4, 9) for generating an optical pulsed signal and an optical probe signal, and circulation means (10) for directing said optical pulsed signal to a sensing optical fiber (21) and for directing an optical measurement signal with Brillouin scattering information arising from said sensing optical fiber (21) toward detection means (18, 19), the device further comprising optical routing means (5) for configuring the device (1) so as to allow generating: (i) according to a first configuration, an optical measurement signal with stimulated Brillouin scattering information resulting from the interaction of the optical pulsed signal and an optical probe signal propagating in said sensing optical fiber (21) in a direction opposite to the optical pulsed signal, or (ii) according to a second configuration, an optical measurement signal with spontaneous Brillouin scattering information resulting from the propagation of the optical pulsed signal in the sensing optical fiber (21). The present invention concerns also a Brillouin optical distributed sensing method.
La présente invention concerne un dispositif de détection distribué optique de Brillouin (1) qui comporte des moyens (2, 3, 4, 9) pour générer un signal pulsé optique et un signal de sonde optique, et un moyen de circulation (10) pour diriger ledit signal pulsé optique vers une fibre optique de détection (21) et pour diriger un signal de mesure optique comprenant des informations de diffusion Brillouin provenant de ladite fibre optique de détection (21) vers les moyens de détection (18, 19), le dispositif comportant en outre un moyen d'acheminement optique (5) pour configurer le dispositif (1) afin de permettre de générer : (i) selon une première configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin stimulée résultant de l'interaction du signal pulsé optique et d'un signal de sonde optique se propageant dans ladite fibre optique de détection (21) vers une direction opposée au signal pulsé optique, ou (ii) selon une seconde configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin spontanée résultant de la propagation du signal pulsé optique dans la fibre optique de détection (21). La présente invention concerne également un procédé de détection distribuée optique de Brillouin.</description><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</subject><subject>MEASURING</subject><subject>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</subject><subject>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</subject><subject>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</subject><subject>PHYSICS</subject><subject>TARIFF METERING APPARATUS</subject><subject>TESTING</subject><subject>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</subject><subject>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNy8EKgkAQgGEvHaJ6h4HOQVti53V3zIF1R9ZRjyKxnaIEe3-S6AE6_ZfvXydjHsg5bskD10JGO7DUSKC8FbTQoG_IX8FiRwZBewsVSskWepISqKoDd4sTdhi0X4jwd-IAhSbXBtwmq_v4mOPu102yL1BMeYjTa4jzNN7iM76Hnk9Hlao0yy6ZVuf_1AenOzTg</recordid><startdate>20140925</startdate><enddate>20140925</enddate><creator>NIKLES, MARC</creator><creator>BRIFFOD, FABIEN</creator><creator>SANGHOON, CHIN</creator><creator>ROCHAT, ETIENNE</creator><creator>MONTAVON, JEANARLES</creator><scope>EVB</scope></search><sort><creationdate>20140925</creationdate><title>BRILLOUIN OPTICAL DISTRIBUTED SENSING DEVICE AND METHOD WITH IMPROVED TOLERANCE TO SENSOR FAILURE</title><author>NIKLES, MARC ; BRIFFOD, FABIEN ; SANGHOON, CHIN ; ROCHAT, ETIENNE ; MONTAVON, JEANARLES</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2014146676A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2014</creationdate><topic>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</topic><topic>MEASURING</topic><topic>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</topic><topic>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</topic><topic>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</topic><topic>PHYSICS</topic><topic>TARIFF METERING APPARATUS</topic><topic>TESTING</topic><topic>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</topic><topic>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</topic><toplevel>online_resources</toplevel><creatorcontrib>NIKLES, MARC</creatorcontrib><creatorcontrib>BRIFFOD, FABIEN</creatorcontrib><creatorcontrib>SANGHOON, CHIN</creatorcontrib><creatorcontrib>ROCHAT, ETIENNE</creatorcontrib><creatorcontrib>MONTAVON, JEANARLES</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NIKLES, MARC</au><au>BRIFFOD, FABIEN</au><au>SANGHOON, CHIN</au><au>ROCHAT, ETIENNE</au><au>MONTAVON, JEANARLES</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>BRILLOUIN OPTICAL DISTRIBUTED SENSING DEVICE AND METHOD WITH IMPROVED TOLERANCE TO SENSOR FAILURE</title><date>2014-09-25</date><risdate>2014</risdate><abstract>The present invention concerns a Brillouin optical distributed sensing device (1), comprising means (2, 3, 4, 9) for generating an optical pulsed signal and an optical probe signal, and circulation means (10) for directing said optical pulsed signal to a sensing optical fiber (21) and for directing an optical measurement signal with Brillouin scattering information arising from said sensing optical fiber (21) toward detection means (18, 19), the device further comprising optical routing means (5) for configuring the device (1) so as to allow generating: (i) according to a first configuration, an optical measurement signal with stimulated Brillouin scattering information resulting from the interaction of the optical pulsed signal and an optical probe signal propagating in said sensing optical fiber (21) in a direction opposite to the optical pulsed signal, or (ii) according to a second configuration, an optical measurement signal with spontaneous Brillouin scattering information resulting from the propagation of the optical pulsed signal in the sensing optical fiber (21). The present invention concerns also a Brillouin optical distributed sensing method.
La présente invention concerne un dispositif de détection distribué optique de Brillouin (1) qui comporte des moyens (2, 3, 4, 9) pour générer un signal pulsé optique et un signal de sonde optique, et un moyen de circulation (10) pour diriger ledit signal pulsé optique vers une fibre optique de détection (21) et pour diriger un signal de mesure optique comprenant des informations de diffusion Brillouin provenant de ladite fibre optique de détection (21) vers les moyens de détection (18, 19), le dispositif comportant en outre un moyen d'acheminement optique (5) pour configurer le dispositif (1) afin de permettre de générer : (i) selon une première configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin stimulée résultant de l'interaction du signal pulsé optique et d'un signal de sonde optique se propageant dans ladite fibre optique de détection (21) vers une direction opposée au signal pulsé optique, ou (ii) selon une seconde configuration, un signal de mesure optique comprenant des informations de diffusion de Brillouin spontanée résultant de la propagation du signal pulsé optique dans la fibre optique de détection (21). La présente invention concerne également un procédé de détection distribuée optique de Brillouin.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
| title | BRILLOUIN OPTICAL DISTRIBUTED SENSING DEVICE AND METHOD WITH IMPROVED TOLERANCE TO SENSOR FAILURE |
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