-
公开(公告)号：US20160161296A1
公开(公告)日：2016-06-09
申请号：US15044588
申请日：2016-02-16
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
IPC: G01D5/353
CPC classification number: G01M11/3145 , G01D5/35303 , G01D5/35306 , G01D5/35358 , G01H9/004 , G01L11/025 , G01M11/3127
Abstract: There is described a distributed optical fibre sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fibre, as a function of position along the sensor fibre. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.
-
公开(公告)号：US20180094952A1
公开(公告)日：2018-04-05
申请号：US15566541
申请日：2016-04-26
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
CPC classification number: G01D5/35361 , G01H9/004 , G01M11/3118
Abstract: The disclosure relates to distributed optical fibre sensors arranged to detect coherent Rayleigh backscatter from a sensing optical fibre disposed in an environment, and to determine an infrasonic signal in the backscatter, or to determine a change in the environment within an infrasonic frequency range from the backscatter.
-
公开(公告)号：US09759633B2
公开(公告)日：2017-09-12
申请号：US15388115
申请日：2016-12-22
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
CPC classification number: G01M11/3145 , G01D5/35303 , G01D5/35306 , G01D5/35358 , G01H9/004 , G01L11/025 , G01M11/3127
Abstract: There is described a distributed optical fibre sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fibre, as a function of position along the sensor fibre. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.
-
公开(公告)号：US20150323455A1
公开(公告)日：2015-11-12
申请号：US14797367
申请日：2015-07-13
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
IPC: G01N21/47
CPC classification number: G01N21/474 , E21B47/06 , E21B47/123 , G01D5/35361 , G01D5/35383 , G01D5/35387 , G01N2201/06113 , G01N2201/088
Abstract: There is disclosed a distributed optical fibre sensor arranged to deliver probe light pulses of different wavelengths into corresponding different sensing optical fibres, and to determine one or more parameters as functions of position along each of the sensing fibres from detected backscattered light of each corresponding wavelength. In another arrangement, the different wavelengths are directed in different corresponding directions around a loop of sensing optical fibre.
Abstract translation: 公开了一种布置成将不同波长的探测光脉冲传送到相应的不同感测光纤中的分布式光纤传感器，并且从每个相应波长的检测到的反向散射光中确定一个或多个参数作为沿每个感测光纤的位置的函数。 在另一种布置中，不同的波长围绕传感光纤的环路在不同的相应方向上被引导。
-
公开(公告)号：US20170205253A1
公开(公告)日：2017-07-20
申请号：US15327926
申请日：2015-07-17
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
CPC classification number: G01D5/3539 , G01H9/004
Abstract: Distributed optical fibre sensor measures vibration, as a concurrent function of position along each of a plurality of sensing optical fibres, from properties of probe light backscattered within the sensing optical fibres. The sensor includes a light-pulse-generating probe light source, a detector, an optical switch. The sensor is arranged to control the optical switch such that all of the sensing optical fibres can be used concurrently to detect acoustic vibration, and an analyser is arranged to determine vibration, as a concurrent function of position along each of the sensing optical fibres, from the detected backscattered probe light.
-
Patent Agency Ranking
公开(公告)号：US09562826B2
公开(公告)日：2017-02-07
申请号：US15044633
申请日：2016-02-16
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
CPC classification number: G01M11/3145 , G01D5/35303 , G01D5/35306 , G01D5/35358 , G01H9/004 , G01L11/025 , G01M11/3127
Abstract: There is described a distributed optical fiber sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fiber, as a function of position along the sensor fiber. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.
-
公开(公告)号：US20170102289A1
公开(公告)日：2017-04-13
申请号：US15388115
申请日：2016-12-22
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
CPC classification number: G01M11/3145 , G01D5/35303 , G01D5/35306 , G01D5/35358 , G01H9/004 , G01L11/025 , G01M11/3127
Abstract: There is described a distributed optical fibre sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fibre, as a function of position along the sensor fibre. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.
-
公开(公告)号：US09574970B2
公开(公告)日：2017-02-21
申请号：US15044588
申请日：2016-02-16
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
CPC classification number: G01M11/3145 , G01D5/35303 , G01D5/35306 , G01D5/35358 , G01H9/004 , G01L11/025 , G01M11/3127
Abstract: There is described a distributed optical fiber sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fiber, as a function of position along the sensor fiber. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.
Abstract translation: 描述了一种分布式光纤传感器，用于根据传感器光纤的位置来检测指示对传感器光纤的环境影响的一个或多个物理参数。 传感器使用不同波长的探针光脉冲。 至少一些探针光脉冲也可以具有不同的脉冲长度。 也可以控制不同波长脉冲的后向散射探测光中的干涉信号之间的相对相位偏差。
-
公开(公告)号：US20160169768A1
公开(公告)日：2016-06-16
申请号：US15044633
申请日：2016-02-16
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
CPC classification number: G01M11/3145 , G01D5/35303 , G01D5/35306 , G01D5/35358 , G01H9/004 , G01L11/025 , G01M11/3127
Abstract: There is described a distributed optical fibre sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fibre, as a function of position along the sensor fibre. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.
-
公开(公告)号：US10281300B2
公开(公告)日：2019-05-07
申请号：US15566541
申请日：2016-04-26
Applicant: Fotech Solutions Limited
Inventor： Vincent Handerek
Abstract: The disclosure relates to distributed optical fiber sensors arranged to detect coherent Rayleigh backscatter from a sensing optical fiber disposed in an environment, and to determine an infrasonic signal in the backscatter, or to determine a change in the environment within an infrasonic frequency range from the backscatter.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.023 seconds)
