Patents Assigned to LXDATA Inc.
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Publication number: 20140002821Abstract: The present invention relates to a sensor using a tilted fiber grating to detect physical manifestations occurring in a medium. Such physical manifestations induce measurable changes in the optical property of the tilted fiber grating. The sensor comprises a sensing surface which is to be exposed to the medium, an optical pathway and a tilted grating in the optical pathway. The grating is responsive to electromagnetic radiation propagating in the optical pathway to generate a response conveying information on the physical manifestation.Type: ApplicationFiled: August 27, 2013Publication date: January 2, 2014Applicant: LXData Inc.Inventors: Jacques Albert, Chengkun Chen, Yanina Shevchenko, Alexei Ivanov
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Patent number: 8611703Abstract: A temperature sensor that has an elongated sensing element having a length of at least 10 m, measured at a temperature of 20° C. The elongated sensing element includes an elongated jacket and an optical fiber mounted in the jacket and having an EFL of at least 0.35%, wherein the elongated sensing element has an average temperature error of less than 2° C.Type: GrantFiled: March 14, 2012Date of Patent: December 17, 2013Assignee: Lxdata Inc.Inventors: Bai Zhou, Sébastien Miville, André R Vincelette
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Publication number: 20130308680Abstract: A method for measuring a physical parameter at a plurality of spaced locations in a subterranean formation using a temperature sensor that has an elongated sensing element having a length of at least 10 m, measured at a temperature of 20° C. The elongated sensing element includes an elongated jacket and an optical fiber mounted in the jacket and having an EFL of at least 0.35%, wherein the elongated sensing element has an average temperature error of less than 2° C.Type: ApplicationFiled: July 23, 2013Publication date: November 21, 2013Applicant: LxData Inc.Inventors: Bai Zhou, Sebastien Miville, Andre R. Vincelette
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Patent number: 8554024Abstract: The present invention relates to a sensor using a tilted fiber grating to detect physical manifestations occurring in a medium. Such physical manifestations induce measurable changes in the optical property of the tilted fiber grating. The sensor comprises a sensing surface which is to be exposed to the medium, an optical pathway and a tilted grating in the optical pathway. The grating is responsive to electromagnetic radiation propagating in the optical pathway to generate a response conveying information on the physical manifestation.Type: GrantFiled: October 25, 2006Date of Patent: October 8, 2013Assignee: LXData Inc.Inventors: Jacques Albert, Chengkun Chen, Yanina Shevchenko, Alexei Ivanov
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Patent number: 8335406Abstract: A temperature sensor that has an elongated sensing element having a length of at least 10 m, measured at a temperature of 20° C. The elongated sensing element includes an elongated jacket and an optical fiber mounted in the jacket and having an EFL of at least 0.35%, wherein the elongated sensing element has an average temperature error of less than 2° C.Type: GrantFiled: January 3, 2012Date of Patent: December 18, 2012Assignee: Lxdata Inc.Inventors: Bai Zhou, Sébastien Miville, André R. Vincelette
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Publication number: 20120170615Abstract: A temperature sensor that has an elongated sensing element having a length of at least 10 m, measured at a temperature of 20° C. The elongated sensing element includes an elongated jacket and an optical fiber mounted in the jacket and having an EFL of at least 0.35%, wherein the elongated sensing element has an average temperature error of less than 2° C.Type: ApplicationFiled: March 14, 2012Publication date: July 5, 2012Applicant: LXDATA INCInventors: Bai ZHOU, Sébastien MIVILLE, André R. VINCELETTE
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Publication number: 20120120985Abstract: A temperature sensor that has an elongated sensing element having a length of at least 10 m, measured at a temperature of 20° C. The elongated sensing element includes an elongated jacket and an optical fiber mounted in the jacket and having an EFL of at least 0.35%, wherein the elongated sensing element has an average temperature error of less than 2° C.Type: ApplicationFiled: January 3, 2012Publication date: May 17, 2012Applicant: LXDATA INCInventors: Bai ZHOU, Sébastien MIVILLE, André R. VINCELETTE
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Publication number: 20110229071Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.Type: ApplicationFiled: April 22, 2010Publication date: September 22, 2011Applicant: LXDATA INC.Inventors: Andre R. Vincelette, Jason S. Kiddy, John B. Niemczuk, Christopher S. Baldwin, Paul Lefebvre
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Patent number: 7672545Abstract: Methods and apparatuses for obtaining information, such as location and/or identification information, regarding sensors in optical paths such as optical fibers. One embodiment provides a method for identifying a location of a tag in an optical path. The tag is (1) adapted for producing a response to an optical signal propagating along the optical path; and (2) responsive to a variation of a physical parameter to vary the response to the optical signal. The method comprises causing a variation of the physical parameter and identifying the location of the tag at least in part by observing the response of the tag to the optical signal. The tag may be associated with a sensor such that a location of the sensor may be derived based on the location of the tag.Type: GrantFiled: May 23, 2006Date of Patent: March 2, 2010Assignee: LXDATA Inc.Inventor: André R. Vincelette
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Publication number: 20090123109Abstract: A temperature sensor that has an elongated sensing element having a length of at least 10 m, measured at a temperature of 20° C. The elongated sensing element includes an elongated jacket and an optical fiber mounted in the jacket and having an EFL of at least 0.35%, wherein the elongated sensing element has an average temperature error of less than 2° C.Type: ApplicationFiled: October 24, 2008Publication date: May 14, 2009Applicant: LXDATA INCInventors: Bai ZHOU, Sebastien MIVILLE, Andre R. VINCELETTE