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公开(公告)号：US20140185056A1
公开(公告)日：2014-07-03
申请号：US13731239
申请日：2012-12-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Sachin Narahari Dekate , Glen Peter Koste , Aaron Jay Knobloch , Boon Kwee Lee , Sameer Dinkar Vartak , Seema Somani
IPC: G01B11/14
CPC classification number: G01D5/35367 , G01B7/023 , G01B11/026 , G01D5/145 , G01D5/35377
Abstract: A system for sensing the position of a movable object includes a polarization maintaining fiber configured to receive light from a light source; an optical system configured to rotate an angle of polarization of the light by a first predetermined angle; a low birefringence fiber connected to the optical system at a first end and having a mirror connected to a second end configured to reflect the light and rotate the angle of polarization at a second predetermined angle, the second end being configured to overlap a magnetic field of the a magnet attached to the object. The angle of polarization is rotated to a third predetermined angle proportional to at least one of the strength of the magnetic field and an amount of the overlap. The optical system is configured to decompose the third predetermined angle into a first component and a second component. A detector is configured to detect a differential between the first and second components indicative of the amount of the overlap.
Abstract translation: 用于感测可移动物体的位置的系统包括被配置为接收来自光源的光的偏振保持光纤; 光学系统，被配置为将所述光的偏振角旋转第一预定角度; 低折射光纤在第一端连接到光学系统，并且具有连接到被配置为反射光并且以第二预定角度旋转偏振角的第二端的反射镜，第二端构造成与第 附着在物体上的磁铁。 偏振角旋转到与磁场的强度和重叠量中的至少一个成比例的第三预定角度。 光学系统被配置为将第三预定角度分解成第一部件和第二部件。 检测器被配置为检测指示重叠量的第一和第二分量之间的差分。
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公开(公告)号：US20170123103A1
公开(公告)日：2017-05-04
申请号：US14932732
申请日：2015-11-04
Applicant: General Electric Company
Inventor： Loucas Tsakalakos , Slawomir Rubinsztajn , Renato Guida , Mahadevan Balasubramaniam , Boon Kwee Lee , Brian Magann Rush , Faisal Razi Ahmad , Sudeep Mandal , David Sirda Shanks
CPC classification number: G01V9/005 , E21B47/06 , E21B47/1005 , G01F1/6884 , G01F1/74 , G01N9/04 , G01N25/00 , G01N27/02
Abstract: A fluid sensor cable assembly and method uses one or more conductive bodies extending along an elongated core body for conducting a heating current to heat the cable assembly. The one or more conductive bodies also are configured to conduct an interrogation signal and to conduct reflections of the interrogation signal. One or more optical fibers extend along the length of the core body and include temperature sensitive elements at different locations along the length of the core body. The temperature sensitive elements measure heat flux out of the cable assembly at the different locations subsequent to heating the cable assembly and communicate the heat flux to a computer acquisition system.
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Patent Agency Ranking
3.发明授权Fiber optic sensing apparatus including fiber gratings and method for sensing parameters involving different parameter modalities 有权包括光纤光栅的光纤传感设备和用于感测涉及不同参数模态的参数的方法公开(公告)号：US09488786B2
公开(公告)日：2016-11-08
申请号：US13678979
申请日：2012-11-16
Applicant: General Electric Company
Inventor： Glen Peter Koste , Raymond Verle Jensen , Hua Xia , Boon Kwee Lee , Victor Petrovich Ostroverkhov , Sachin Narahari Dekate , William Albert Challener
CPC classification number: G02B6/34 , G01B9/02 , G01D5/35316 , G01D5/35358 , G01D5/3539
Abstract: Optical-based apparatus and method for sensing parameters in connection with an asset, such as a pipeline, are provided. At least two sites in an optical fiber may include a respective fiber grating arranged to have a respective optical response in a wavelength spectrum having a distinguishing feature indicative of a value of a respective local parameter at a respective grating site. The two fiber gratings may be further arranged to form, in combination with a respective portion of the optical fiber which extends between the two sites, respective optical backscatter portions that when combined with one another are effective to sense an optical change in the fiber portion between the sites indicative of a value of a distributed parameter. This is a parameter modality different from a parameter modality of the respective local parameters at the respective grating sites.
Abstract translation: 提供了用于感测与资产（例如管道）相关的参数的基于光学的装置和方法。 光纤中的至少两个位置可以包括相应的光纤光栅，其被布置为在具有指示相应光栅位置处的相应局部参数的值的区别特征的波长光谱中具有相应的光学响应。 两个光纤光栅可以进一步布置成与在两个位置之间延伸的光纤的相应部分组合形成相应的光学反向散射部分，当彼此组合时，有效地感测光纤部分之间的光学变化， 表示分布参数值的站点。 这是与各个光栅位置处的各个局部参数的参数模态不同的参数模态。
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公开(公告)号：US09170129B2
公开(公告)日：2015-10-27
申请号：US14056208
申请日：2013-10-17
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Sachin Narahari Dekate , Glen Peter Kose , Aaron Jay Knobloch , Boon Kwee Lee , Sameer Dinkar Vartak , Seema Somani
IPC: G01D5/26
Abstract: A system for sensing the position of a movable object includes a polarization maintaining fiber configured to receive light from a light source; an optical system configured to rotate an angle of polarization of the light by a first predetermined angle; a low birefringence fiber connected to the optical system at a first end and having a mirror connected to a second end configured to reflect the light and rotate the angle of polarization at a second predetermined angle, the second end being configured to overlap a magnetic field of the a magnet attached to the object. The angle of polarization is rotated to a third predetermined angle proportional to at least one of the strength of the magnetic field and an amount of the overlap. The optical system is configured to decompose the third predetermined angle into a first component and a second component. A detector is configured to detect a differential between the first and second components indicative of the amount of the overlap.
Abstract translation: 用于感测可移动物体的位置的系统包括被配置为接收来自光源的光的偏振保持光纤; 光学系统，被配置为将所述光的偏振角旋转第一预定角度; 低折射光纤在第一端连接到光学系统，并且具有连接到被配置为反射光并将偏振角旋转到第二预定角度的第二端的反射镜，第二端构造成与第 附着在物体上的磁铁。 偏振角旋转到与磁场的强度和重叠量中的至少一个成比例的第三预定角度。 光学系统被配置为将第三预定角度分解成第一部件和第二部件。 检测器被配置为检测指示重叠量的第一和第二分量之间的差分。
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公开(公告)号：US10120102B2
公开(公告)日：2018-11-06
申请号：US14932732
申请日：2015-11-04
Applicant: General Electric Company
Inventor： Loucas Tsakalakos , Slawomir Rubinsztajn , Renato Guida , Mahadevan Balasubramaniam , Boon Kwee Lee , Brian Magann Rush , Faisal Razi Ahmad , Sudeep Mandal , David Sirda Shanks
Abstract: A fluid sensor cable assembly and method uses one or more conductive bodies extending along an elongated core body for conducting a heating current to heat the cable assembly. The one or more conductive bodies also are configured to conduct an interrogation signal and to conduct reflections of the interrogation signal. One or more optical fibers extend along the length of the core body and include temperature sensitive elements at different locations along the length of the core body. The temperature sensitive elements measure heat flux out of the cable assembly at the different locations subsequent to heating the cable assembly and communicate the heat flux to a computer acquisition system.
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公开(公告)号：US20150108335A1
公开(公告)日：2015-04-23
申请号：US14056208
申请日：2013-10-17
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Sachin Narahari Dekate , Glen Peter Kose , Aaron Jay Knobloch , Boon Kwee Lee , Sameer Dinkar Vartak , Seema Somani
IPC: G01D5/26
Abstract: A system for sensing the position of a movable object includes a polarization maintaining fiber configured to receive light from a light source; an optical system configured to rotate an angle of polarization of the light by a first predetermined angle; a low birefringence fiber connected to the optical system at a first end and having a mirror connected to a second end configured to reflect the light and rotate the angle of polarization at a second predetermined angle, the second end being configured to overlap a magnetic field of the a magnet attached to the object. The angle of polarization is rotated to a third predetermined angle proportional to at least one of the strength of the magnetic field and an amount of the overlap. The optical system is configured to decompose the third predetermined angle into a first component and a second component. A detector is configured to detect a differential between the first and second components indicative of the amount of the overlap.
Abstract translation: 用于感测可移动物体的位置的系统包括被配置为接收来自光源的光的偏振保持光纤; 光学系统，被配置为将所述光的偏振角旋转第一预定角度; 低折射光纤在第一端连接到光学系统，并且具有连接到被配置为反射光并将偏振角旋转到第二预定角度的第二端的反射镜，第二端构造成与第 附着在物体上的磁铁。 偏振角旋转到与磁场的强度和重叠量中的至少一个成比例的第三预定角度。 光学系统被配置为将第三预定角度分解成第一部件和第二部件。 检测器被配置为检测指示重叠量的第一和第二分量之间的差分。
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7.发明申请FIBER OPTIC SENSING APPARATUS INCLUDING FIBER GRATINGS AND METHOD FOR SENSING PARAMETERS INVOLVING DIFFERENT PARAMETER MODALITIES 有权包括光纤光栅的光纤感测装置和涉及不同参数模式的传感参数的方法公开(公告)号：US20140139841A1
公开(公告)日：2014-05-22
申请号：US13678979
申请日：2012-11-16
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Glen Peter Koste , Raymond Verle Jensen , Hua NMN Xia , Boon Kwee Lee , Victor Petrovich Ostroverkhov , Sachin Narahari Dekate , William Albert Challener
CPC classification number: G02B6/34 , G01B9/02 , G01D5/35316 , G01D5/35358 , G01D5/3539
Abstract: Optical-based apparatus and method for sensing parameters in connection with an asset, such as a pipeline, are provided. At least two sites in an optical fiber may include a respective fiber grating arranged to have a respective optical response in a wavelength spectrum having a distinguishing feature indicative of a value of a respective local parameter at a respective grating site. The two fiber gratings may be further arranged to form, in combination with a respective portion of the optical fiber which extends between the two sites, respective optical backscatter portions that when combined with one another are effective to sense an optical change in the fiber portion between the sites indicative of a value of a distributed parameter. This is a parameter modality different from a parameter modality of the respective local parameters at the respective grating sites.
Abstract translation: 提供了用于感测与资产（例如管道）相关的参数的基于光学的装置和方法。 光纤中的至少两个位置可以包括相应的光纤光栅，其被布置为在具有指示相应光栅位置处的相应局部参数的值的区别特征的波长光谱中具有相应的光学响应。 两个光纤光栅可以进一步布置成与在两个位置之间延伸的光纤的相应部分组合形成相应的光学反向散射部分，当彼此组合时，有效地感测光纤部分之间的光学变化， 表示分布参数值的站点。 这是与各个光栅位置处的各个局部参数的参数模态不同的参数模态。
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