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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：US10859486B2
公开(公告)日：2020-12-08
申请号：US15607181
申请日：2017-05-26
Applicant: General Electric Company
Inventor： Gregory Boverman , Sachin Narahari Dekate , Yongjae Lee
Abstract: A measurement tool configured to be run through a bore of a hydrocarbon well. The measurement tool includes a dielectric core, a controller disposed at a first end of the dielectric core, a first wire helically disposed about the dielectric core and extending from the controller to a first location a first distance from the controller, and a second wire helically disposed about the dielectric core and extending from the controller to a second location a second distance from the controller. The controller provides first and second input signals to the first and second wires, and receives first and second reflected signals from the first and second wires.
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公开(公告)号：US20170307471A1
公开(公告)日：2017-10-26
申请号：US15134668
申请日：2016-04-21
Applicant: General Electric Company
Inventor： Sudeep Mandal , Susanne Madeline Lee , Sachin Narahari Dekate , Majid Nayeri
IPC: G01M11/00
CPC classification number: G01M11/319 , G01J5/48 , G01K11/32 , G01K2011/322 , G01K2011/324 , G01N21/00
Abstract: A measurement system includes a cable having a length, a light source, at least one detector, and at least one processor. The light source is operably coupled to the cable and is configured to transmit an optical signal to the cable. The at least one processor is operably coupled to the cable and configured to: receive a scattered signal from the cable responsive to the optical signal transmitted to the cable; map the scattered signal to the length of the cable; and de-convolve a spatial averaging effect of the scattered signal using a weighting profile corresponding to the light source and the cable to generate a distributed property profile defined along the length of the cable.
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Patent Agency Ranking
14.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：US09869607B2
公开(公告)日：2018-01-16
申请号：US15134668
申请日：2016-04-21
Applicant: General Electric Company
Inventor： Sudeep Mandal , Susanne Madeline Lee , Sachin Narahari Dekate , Majid Nayeri
CPC classification number: G01M11/319 , G01J5/48 , G01K11/32 , G01K2011/322 , G01K2011/324 , G01N21/00
Abstract: A measurement system includes a cable having a length, a light source, at least one detector, and at least one processor. The light source is operably coupled to the cable and is configured to transmit an optical signal to the cable. The at least one processor is operably coupled to the cable and configured to: receive a scattered signal from the cable responsive to the optical signal transmitted to the cable; map the scattered signal to the length of the cable; and de-convolve a spatial averaging effect of the scattered signal using a weighting profile corresponding to the light source and the cable to generate a distributed property profile defined along the length of the cable.
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公开(公告)号：US20170076563A1
公开(公告)日：2017-03-16
申请号：US14854828
申请日：2015-09-15
Applicant: General Electric Company
Inventor： Marco Guerriero , Frederick Wilson Wheeler , Glen Peter Koste , Sachin Narahari Dekate , Peter Henry Tu
CPC classification number: G06F17/30424 , F17D5/06 , G01M3/002 , G01M3/243 , G01M3/2807
Abstract: According to some embodiments, a signal processing unit may receive distributed acoustic sensing data associated with a first set of a plurality of pipeline locations. The signal processing unit may also receive collected physical data representing a physical characteristic of a second set of a plurality of pipeline locations. The signal processing unit may then utilize a pipeline model having the distributed acoustic sensing data and collected physical data as inputs to automatically generate at least one alert indicating an increased probability of damage to the pipeline.
Abstract translation: 根据一些实施例，信号处理单元可以接收与多个管道位置的第一组相关联的分布式声学感测数据。 信号处理单元还可以接收表示多个管道位置的第二组的物理特性的收集的物理数据。 信号处理单元然后可以利用具有分布式声学感测数据和收集的物理数据作为输入的流水线模型，以自动生成至少一个警告，指示对管道的损害可能性增加。
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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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18.发明申请公开(公告)号：US20150276686A1
公开(公告)日：2015-10-01
申请号：US14225768
申请日：2014-03-26
Applicant: General Electric Company
Inventor： William Albert Challener , Sachin Narahari Dekate , Sabarni Palit , Ansas Matthias Kasten , Reza Ghandi
CPC classification number: G01N29/42 , B81B7/02 , E21B47/06 , G01D5/266 , G01D5/285 , G01L9/0011 , G01N29/2418 , G01N2291/014 , G01N2291/02872 , G01N2291/02881
Abstract: A sensor interrogation unit in one embodiment includes a control module, a reading module, and a determination module. The control module is configured to control one or more lasers to provide a pulsed signal to at least one sensor. Each period of the pulsed signal has a first component having a first intensity and a second component having a second intensity that is lower than the first intensity. The reading module is configured to receive at least one return signal comprising reflections of the pulsed signal from the at least one sensor, to read one of the first component or the second component, and to provide frequency information based on the read reflections. The determination module is configured to determine at least one resonant frequency of the at least one sensor based on the frequency information.
Abstract translation: 一个实施例中的传感器询问单元包括控制模块，读取模块和确定模块。 控制模块被配置为控制一个或多个激光器以向至少一个传感器提供脉冲信号。 脉冲信号的每个周期具有具有第一强度的第一分量和具有低于第一强度的第二强度的第二分量。 读取模块被配置为接收包括来自至少一个传感器的脉冲信号的反射的至少一个返回信号，以读取第一部件或第二部件中的一个，并且基于读取的反射来提供频率信息。 确定模块被配置为基于频率信息来确定至少一个传感器的至少一个谐振频率。
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