公开(公告)号：US20170097464A1

公开(公告)日：2017-04-06

申请号：US14876411

申请日：2015-10-06

Applicant: General Electric Company

Inventor： William Albert Challener ,  Niloy Choudhury ,  Sabarni Palit

IPC: G02B6/02 ,  G01J3/02 ,  G01N21/3504

CPC classification number: G02B6/02328 ,  G01J3/0218 ,  G01J3/0221 ,  G01N21/0303 ,  G01N21/3504 ,  G01N2201/08 ,  G01N2201/088 ,  G02B6/02309 ,  G02B6/02347 ,  G02B6/02371

Abstract: Microstructured optical fiber (MOF) includes a cladding extending a length between first and second ends. The cladding includes an inner porous microstructure that at least partially surrounds a hollow core. A perimeter contour of the hollow core has a non-uniform radial distance from a center axis of the cladding such that first segments of the cladding along the perimeter contour have a shorter radial distance from the center axis relative to second segments of the cladding along the perimeter contour. The cladding receives and propagates light energy through the hollow core, and the inner porous microstructure substantially confines the light energy within the hollow core. The cladding defines at least one port hole that extends radially from an exterior surface of the cladding to the hollow core. Each port hole penetrates the perimeter contour of the hollow core through one of the second segments of the cladding.

公开(公告)号：US09512715B2

公开(公告)日：2016-12-06

申请号：US13954296

申请日：2013-07-30

Applicant: General Electric Company

Inventor： William Albert Challener ,  Li Airey

IPC: E21B47/06 ,  E21B47/04 ,  G01K1/02 ,  G01K7/32 ,  G01L9/00 ,  G01L19/00 ,  G01L27/00

CPC classification number: E21B47/04 ,  G01K1/024 ,  G01K7/32 ,  G01L9/0017 ,  G01L19/0092 ,  G01L27/002

Abstract: A measurement system in one embodiment includes an acquisition module and a determination module. The acquisition module is configured to acquire resonant frequency information corresponding to a sensor disposed in a remote location from the acquisition module. The resonant frequency information includes first resonant frequency information for a first resonant frequency of the sensor corresponding to environmental conditions of the remote location, and also includes second resonant frequency information for a different, second resonant frequency of the sensor corresponding to the environmental conditions of the remote location. The determination module is configured to use the first resonant frequency information and the second resonant frequency information to determine the temperature and the pressure at the remote location.

Abstract translation: 一个实施例中的测量系统包括采集模块和确定模块。 采集模块被配置为从采集模块获取与设置在远程位置的传感器对应的谐振频率信息。 谐振频率信息包括与远程位置的环境条件对应的传感器的第一谐振频率的第一谐振频率信息，并且还包括用于与传感器的环境条件对应的传感器的不同的第二谐振频率的第二谐振频率信息 偏远的地点。 确定模块被配置为使用第一谐振频率信息和第二谐振频率信息来确定远程位置处的温度和压力。

公开(公告)号：US20160018277A1

公开(公告)日：2016-01-21

申请号：US14336105

申请日：2014-07-21

Applicant: General Electric Company

Inventor： William Albert Challener ,  Sabami Palit

IPC: G01L1/24 ,  G01M11/00

CPC classification number: G01L1/246 ,  G01D5/35316 ,  G01D5/3538 ,  G01L1/242 ,  G01L11/025 ,  G01M11/31 ,  G02B6/02042 ,  G02B6/022 ,  G02B6/02328 ,  G02B6/02347 ,  G02B6/024 ,  G02B2006/12138 ,  H01B9/005

Abstract: A pressure sensing cable in one embodiment includes an optical fiber having a first core and a second core. The first core extends along a length of the cable, and is sized and configured to provide propagation of light along the first core along the length of the cable. The first core has a first mode index corresponding to the speed of light propagation along the first core. The second core extends along the length, is spaced a distance from the first core, and is sized and configured to provide propagation of light along the second core along the length of the cable. The second core has a second mode index corresponding to the speed of light propagation along the second core. The second mode index is different from the first mode index, wherein light propagates along the second core at a different speed than along the first core.

Abstract translation: 一个实施例中的压力感测电缆包括具有第一芯和第二芯的光纤。 第一芯沿着电缆的长度延伸，并且其尺寸和配置以沿着电缆的长度提供沿着第一芯的光的传播。 第一芯具有对应于沿着第一芯的光传播速度的第一模式指标。 第二芯沿着长度延伸，与第一芯间隔一定距离，并且其尺寸和构造成沿着电缆的长度提供沿着第二芯的光的传播。 第二核心具有对应于沿着第二核心的光传播速度的第二模式指数。 第二模式指标与第一模式指标不同，其中光沿着与第一模芯不同的速度沿着第二芯线传播。

公开(公告)号：US20150268117A1

公开(公告)日：2015-09-24

申请号：US14222757

申请日：2014-03-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： William Albert Challener ,  Glen Peter Koste ,  Sachin Narahari Dekate ,  Sabarni Palit

IPC: G01L11/02 ,  E21B47/06

CPC classification number: G01L11/025 ,  E21B47/06 ,  G01D5/35312 ,  G01D5/3538

Abstract: A pressure sensing cable in one embodiment includes a polarization maintaining (PM) optic fiber having a length; and a Fiber Bragg Grating (FBG) pair formed in the PM optic fiber. The FBG pair includes a first FBG formed at a location along the length of the optic fiber. The first FBG defines a first wavelength range at which the first FBG is reflective. The FBG pair also includes a second FBG spaced a distance from the first FBG to define a FBG cavity extending between the first FBG and the second FBG. The second FBG defines a second wavelength range at which the second FBG is reflective. The first wavelength range of the first FBG and the second wavelength range of the second FBG at least partially overlap.

Abstract translation: 一个实施例中的压力感测电缆包括具有长度的偏振维持（PM）光纤; 和在PM光纤中形成的光纤布拉格光栅（FBG）对。 FBG对包括沿着光纤长度的位置形成的第一FBG。 第一FBG定义了第一个FBG反射的第一波长范围。 FBG对还包括与第一FBG隔开距离的第二FBG，以限定在第一FBG和第二FBG之间延伸的FBG腔。 第二FBG定义了第二个波长范围，第二个FBG反射。 第一FBG的第一波长范围和第二FBG的第二波长范围至少部分重叠。

公开(公告)号：US20150033841A1

公开(公告)日：2015-02-05

申请号：US13954296

申请日：2013-07-30

Applicant: General Electric Company

Inventor： William Albert Challener ,  Li Airey

IPC: E21B47/06

CPC classification number: E21B47/04 ,  G01K1/024 ,  G01K7/32 ,  G01L9/0017 ,  G01L19/0092 ,  G01L27/002

Abstract: A measurement system in one embodiment includes an acquisition module and a determination module. The acquisition module is configured to acquire resonant frequency information corresponding to a sensor disposed in a remote location from the acquisition module. The resonant frequency information includes first resonant frequency information for a first resonant frequency of the sensor corresponding to environmental conditions of the remote location, and also includes second resonant frequency information for a different, second resonant frequency of the sensor corresponding to the environmental conditions of the remote location. The determination module is configured to use the first resonant frequency information and the second resonant frequency information to determine the temperature and the pressure at the remote location.

Abstract translation: 一个实施例中的测量系统包括采集模块和确定模块。 采集模块被配置为从采集模块获取与设置在远程位置的传感器对应的谐振频率信息。 谐振频率信息包括与远程位置的环境条件对应的传感器的第一谐振频率的第一共振频率信息，并且还包括用于与传感器的环境条件对应的传感器的不同的第二谐振频率的第二谐振频率信息 偏远的地点。 确定模块被配置为使用第一谐振频率信息和第二谐振频率信息来确定远程位置处的温度和压力。

公开(公告)号：US20140373609A1

公开(公告)日：2014-12-25

申请号：US13925485

申请日：2013-06-24

Applicant: General Electric Company

Inventor： Wontae Hwang ,  Vinay Bhaskar Jammu ,  Jason Harris Karp ,  Mohamed Sakami ,  William Albert Challener

IPC: G01M15/14

CPC classification number: G01M15/14

Abstract: A system for optically monitoring a gas turbine engine includes an optical multiplexer configured to receive multiple images from respective viewports into the gas turbine engine. The optical multiplexer includes a movable reflective device configured to selectively direct at least a portion of each image toward a detector array, and the detector array is directed toward a fixed location on the optical multiplexer.

Abstract translation: 用于光学监测燃气涡轮发动机的系统包括配置成从相应视口将多个图像接收到燃气涡轮发动机中的光学多路复用器。 光学多路复用器包括可移动反射装置，其被配置为选择性地将每个图像的至少一部分引向检测器阵列，并且检测器阵列被引向光复用器上的固定位置。

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

IPC: G02B6/34 ,  G01B9/02

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。