专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07515276B2 High resolution interferometric optical frequency domain reflectometry (OFDR) beyond the laser coherence length 有权
标题翻译：高分辨率干涉光学频域反射（OFDR）超出激光相干长度
公开(公告)号：US07515276B2
公开(公告)日：2009-04-07
申请号：US11779527
申请日：2007-07-18
申请人： Mark Froggatt , Ryan J. Seeley , Dawn K. Gifford
发明人： Mark Froggatt , Ryan J. Seeley , Dawn K. Gifford
IPC分类号： G01B9/02
CPC分类号： G01M11/3172
摘要： The technology described here enables the use of an inexpensive laser to measure an interferometric response of an optical device under test (DUT) at reflection lengths significantly greater than the coherence length of the laser. This is particularly beneficial in practical interferometric applications where cost is a concern. In other words, inexpensive lasers having shorter coherence lengths may be used to achieve very high interferometric measurements at longer DUT reflection lengths. The technology also enables the use of such inexpensive lasers to measure Rayleigh scatter in commercial-grade, single-mode optical fiber.
摘要翻译：这里描述的技术使得能够使用廉价的激光器以显着大于激光器的相干长度的反射长度来测量被测光学器件（DUT）的干涉测量响应。这在成本是关注的实际干涉测量应用中特别有益。换句话说，具有较短相干长度的便宜的激光器可以用于在更长的DUT反射长度上实现非常高的干涉测量。该技术还能够使用这种便宜的激光器来测量商用级单模光纤中的瑞利散射。

2. 发明授权

US08004686B2 Compensating for time varying phase changes in interferometric measurements 有权
公开(公告)号：US08004686B2
公开(公告)日：2011-08-23
申请号：US11792082
申请日：2005-12-13
申请人： Mark Froggatt , Dawn K. Gifford
发明人： Mark Froggatt , Dawn K. Gifford
IPC分类号： G01B9/02
CPC分类号： G01M11/3172 , G01M11/083
摘要： An optical device under test (DUT) is interferometrically measured. The DUT can include one or more of an optical fiber, an optical component, or an optical system. First interference pattern data for the DUT is obtained for a first path to the DUT, and second interference pattern data for the DUT is obtained for a second somewhat longer path to the DUT. Because of that longer length, the second interference pattern data is delayed in time from the first interference pattern data. A time varying component of the DUT interference pattern data is then identified from the first and second interference pattern data. The identified time varying component is used to modify the first or the second interference pattern data to compensate for the time-varying phase caused by vibrations, etc. One or more optical characteristics of the DUT may then be determined based on the modified interference pattern data.

3. 发明授权

US07948633B2 Compensating for time varying phase changes in interferometric measurements 有权
标题翻译：补偿干涉测量中的时变相位变化
公开(公告)号：US07948633B2
公开(公告)日：2011-05-24
申请号：US12805879
申请日：2010-08-23
申请人： Mark Froggatt , Dawn K. Gifford
发明人： Mark Froggatt , Dawn K. Gifford
IPC分类号： G01B9/02
CPC分类号： G01M11/3172 , G01M11/083
摘要： An optical device under test (DUT) is interferometrically measured. The DUT can include one or more of an optical fiber, an optical component, or an optical system. First interference pattern data for the DUT is obtained for a first path to the DUT, and second interference pattern data for the DUT is obtained for a second somewhat longer path to the DUT. Because of that longer length, the second interference pattern data is delayed in time from the first interference pattern data. A time varying component of the DUT interference pattern data is then identified from the first and second interference pattern data. The identified time varying component is used to modify the first or the second interference pattern data to compensate for the time-varying phase caused by vibrations, etc. One or more optical characteristics of the DUT may then be determined based on the modified interference pattern data.
摘要翻译：对被测光学器件（DUT）进行干涉测量。 DUT可以包括光纤，光学部件或光学系统中的一个或多个。对于DUT的第一路径获得DUT的第一干涉图案数据，并且获得用于DUT的第二干涉图案数据用于到DUT的第二更长的路径。由于该长度较长，所以第二干涉图案数据在时间上与第一干涉图案数据相比延迟。然后从第一和第二干涉图案数据识别DUT干涉图案数据的时变分量。所识别的时变分量用于修改第一或第二干涉图案数据以补偿由振动等引起的时变相位。然后可以基于经修改的干涉图案数据来确定DUT的一个或多个光学特性。

4. 发明申请

US20100321702A1 Compensating for time varying phase changes in interferometric measurements 有权
标题翻译：补偿干涉测量中的时变相位变化
公开(公告)号：US20100321702A1
公开(公告)日：2010-12-23
申请号：US12805879
申请日：2010-08-23
申请人： Mark Froggatt , Dawn K. Gifford
发明人： Mark Froggatt , Dawn K. Gifford
IPC分类号： G01B9/02
CPC分类号： G01M11/3172 , G01M11/083
摘要： An optical device under test (DUT) is interferometrically measured. The DUT can include one or more of an optical fiber, an optical component, or an optical system. First interference pattern data for the DUT is obtained for a first path to the DUT, and second interference pattern data for the DUT is obtained for a second somewhat longer path to the DUT. Because of that longer length, the second interference pattern data is delayed in time from the first interference pattern data. A time varying component of the DUT interference pattern data is then identified from the first and second interference pattern data. The identified time varying component is used to modify the first or the second interference pattern data to compensate for the time-varying phase caused by vibrations, etc. One or more optical characteristics of the DUT may then be determined based on the modified interference pattern data.
摘要翻译：对被测光学器件（DUT）进行干涉测量。 DUT可以包括光纤，光学部件或光学系统中的一个或多个。对于DUT的第一路径获得DUT的第一干涉图案数据，并且获得用于DUT的第二干涉图案数据用于到DUT的第二更长的路径。由于该长度较长，所以第二干涉图案数据在时间上与第一干涉图案数据相比延迟。然后从第一和第二干涉图案数据识别DUT干涉图案数据的时变分量。所识别的时变分量用于修改第一或第二干涉图案数据以补偿由振动等引起的时变相位。然后可以基于经修改的干涉图案数据来确定DUT的一个或多个光学特性。

5. 发明申请

US20090103100A1 Compensating for Time Varying Phase Changes in Interferometric Measurements 有权
标题翻译：补偿干涉测量中的时间变化相位变化
公开(公告)号：US20090103100A1
公开(公告)日：2009-04-23
申请号：US11792082
申请日：2005-12-13
申请人： Mark Froggatt , Dawn K. Gifford
发明人： Mark Froggatt , Dawn K. Gifford
IPC分类号： G01B9/02
CPC分类号： G01M11/3172 , G01M11/083
摘要： An optical device under test (DUT) is interferometrically measured. The DUT can include one or more of an optical fiber, an optical component, or an optical system. First interference pattern data for the DUT is obtained for a first path to the DUT, and second interference pattern data for the DUT is obtained for a second somewhat longer path to the DUT. Because of that longer length, the second interference pattern data is delayed in time from the first interference pattern data. A time varying component of the DUT interference pattern data is then identified from the first and second interference pattern data. The identified time varying component is used to modify the first or the second interference pattern data to compensate for the time-varying phase caused by vibrations, etc. One or more optical characteristics of the DUT may then be determined based on the modified interference pattern data.
摘要翻译：对被测光学器件（DUT）进行干涉测量。 DUT可以包括光纤，光学部件或光学系统中的一个或多个。对于DUT的第一路径获得DUT的第一干涉图案数据，并且获得用于DUT的第二干涉图案数据用于到DUT的第二更长的路径。由于该长度较长，所以第二干涉图案数据在时间上与第一干涉图案数据相比延迟。然后从第一和第二干涉图案数据识别DUT干涉图案数据的时变分量。所识别的时变分量用于修改第一或第二干涉图案数据以补偿由振动等引起的时变相位。然后可以基于经修改的干涉图案数据来确定DUT的一个或多个光学特性。

6. 发明授权

US08400620B2 Registration of an extended reference for parameter measurement in an optical sensing system 有权
标题翻译：在光学传感系统中注册参数测量的扩展参考
公开(公告)号：US08400620B2
公开(公告)日：2013-03-19
申请号：US13149206
申请日：2011-05-31
申请人： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Matthew Reaves , Joseph J. Bos , Alexander K. Sang
发明人： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Matthew Reaves , Joseph J. Bos , Alexander K. Sang
IPC分类号： G01L1/24 , G01B11/16 , G01B9/02
CPC分类号： G01B11/161 , G01D5/35316 , G01D5/35361 , G01L1/242
摘要： An interferometric measurement system measures a parameter using at least one optical waveguide. A memory stores reference interferometric pattern data associated with a segment of the optical waveguide. Interferometric detection circuitry detects and stores measurement interferometric pattern data associated with the segment of the optical waveguide during a measurement operation. A spectral range of the reference interferometric pattern of the optical waveguide is greater than a spectral range of the measurement interferometric pattern of the optical waveguide. A processor shifts one or both of the measurement interferometric pattern data and the reference interferometric pattern data relative to the other to obtain a match and to use the match to measure the parameter. An example parameter is strain.
摘要翻译：干涉测量系统使用至少一个光波导测量参数。存储器存储与光波导的段相关联的参考干涉图案数据。干涉测量电路在测量操作期间检测和存储与光波导段相关联的测量干涉图案数据。光波导的参考干涉图案的光谱范围大于光波导的测量干涉图案的光谱范围。处理器相对于另一个处理器移动测量干涉图案数据和参考干涉图案数据中的一个或两个以获得匹配并且使用该匹配来测量该参数。示例参数是应变。

7. 发明授权

US08531655B2 Compensating for non-ideal multi-core optical fiber structure 有权
标题翻译：补偿非理想多芯光纤结构
公开(公告)号：US08531655B2
公开(公告)日：2013-09-10
申请号：US13233577
申请日：2011-09-15
申请人： Justin W. Klein , Mark E. Froggatt , Stephen T. Kreger , Dawn K. Gifford , Sandra M. Klute
发明人： Justin W. Klein , Mark E. Froggatt , Stephen T. Kreger , Dawn K. Gifford , Sandra M. Klute
IPC分类号： G01N21/00 , G01B9/02
CPC分类号： G01B11/161 , G01B9/02023 , G01B11/18 , G01B21/042 , G01B21/045 , G02B6/02042
摘要： An interferometric measurement system includes a spun optical fiber including multiple optical waveguides configured in the fiber. Interferometric detection circuitry detects measurement interferometric pattern data associated with each of the multiple optical waveguides when the optical fiber is placed into a bend. Data processing circuitry determines compensation parameters that compensate for variations between an optimal configuration of the multiple optical waveguides in the fiber and an actual configuration of multiple optical waveguides in the fiber. The compensation parameters are stored in memory for compensating subsequently-obtained measurement interferometric pattern data for the fiber. The compensation parameters are applied to the subsequently-obtained measurement interferometric pattern data in order to distinguish between axial strain, bend strain, and twist strain on the fiber and to accurately determine one or more strain values for the fiber corresponding to one or more of the axial strain, bend strain, or twist strain on the fiber.
摘要翻译：干涉测量系统包括在光纤中配置的包括多个光波导的纺丝光纤。当光纤放入弯曲部时，干涉测量电路检测与多个光波导中的每一个相关联的测量干涉图案数据。数据处理电路确定补偿参数，其补偿光纤中多个光波导的最佳配置与光纤中多个光波导的实际配置之间的变化。补偿参数存储在存储器中，用于补偿随后获得的用于光纤的测量干涉图案数据。将补偿参数应用于随后获得的测量干涉图案数据，以便区分光纤上的轴向应变，弯曲应变和扭曲应变，并且准确地确定对应于一个或多个的纤维的纤维的一个或多个应变值轴向应变，弯曲应变或纤维上的扭曲应变。

8. 发明申请

US20110247427A1 STRAIN SENSING WITH OPTICAL FIBER ROSETTES 有权
标题翻译：光纤光缆的应变感应
公开(公告)号：US20110247427A1
公开(公告)日：2011-10-13
申请号：US13081056
申请日：2011-04-06
申请人： Mark E. FROGGATT , Dawn K. Gifford
发明人： Mark E. FROGGATT , Dawn K. Gifford
IPC分类号： G01L1/24
CPC分类号： G01L1/246 , G01D5/35306 , G01K11/3206
摘要： One or more mechanical parameters of a structure subjected to a force or condition are measured using distributed, optical fiber sensing technology. At least a curved portion an optical fiber having is attached to an object. A distributed, optically-based, strain sensing technique is used to determine strain information associated with multiple points along the curved portion of the fiber. The determined strain information is processed to generate one or more representations of one or more of the following: an expansion of the object, a thermal gradient associated with the object, or a stress-induced strain at multiple locations on the object corresponding to ones of the multiple points. An output is generated corresponding to the representation.
摘要翻译：使用分布式光纤传感技术测量受到力或条件的结构的一个或多个机械参数。至少具有附接到物体的光纤的弯曲部分。使用分布式，基于光学的应变感测技术来确定与沿着光纤的弯曲部分的多个点相关联的应变信息。所确定的应变信息被处理以产生以下中的一个或多个的一个或多个表示：对象的扩展，与对象相关联的热梯度，或对象上的多个位置处的应力诱发应变多点。生成对应于表示的输出。

9. 发明授权

US08714026B2 Strain sensing with optical fiber rosettes 有权
标题翻译：带光纤花环的应变传感
公开(公告)号：US08714026B2
公开(公告)日：2014-05-06
申请号：US13081056
申请日：2011-04-06
申请人： Mark E. Froggatt , Dawn K. Gifford
发明人： Mark E. Froggatt , Dawn K. Gifford
IPC分类号： G01L1/24
CPC分类号： G01L1/246 , G01D5/35306 , G01K11/3206
摘要： One or more mechanical parameters of a structure subjected to a force or condition are measured using distributed, optical fiber sensing technology. At least a curved portion an optical fiber having is attached to an object. A distributed, optically-based, strain sensing technique is used to determine strain information associated with multiple points along the curved portion of the fiber. The determined strain information is processed to generate one or more representations of one or more of the following: an expansion of the object, a thermal gradient associated with the object, or a stress-induced strain at multiple locations on the object corresponding to ones of the multiple points. An output is generated corresponding to the representation.
摘要翻译：使用分布式光纤传感技术测量受到力或条件的结构的一个或多个机械参数。至少具有附接到物体的光纤的弯曲部分。使用分布式，基于光学的应变感测技术来确定与沿着光纤的弯曲部分的多个点相关联的应变信息。所确定的应变信息被处理以产生以下中的一个或多个的一个或多个表示：对象的扩展，与对象相关联的热梯度，或对象上的多个位置处的应力诱发应变多点。生成对应于表示的输出。

10. 发明授权

US07781724B2 Fiber optic position and shape sensing device and method relating thereto 有权
标题翻译：光纤位置和形状感测装置及其相关的方法
公开(公告)号：US07781724B2
公开(公告)日：2010-08-24
申请号：US11535438
申请日：2006-09-26
申请人： Brooks A. Childers , Dawn K. Gifford , Roger G. Duncan , Matthew T. Raum , Michael E. Vercellino , Mark E. Froggatt
发明人： Brooks A. Childers , Dawn K. Gifford , Roger G. Duncan , Matthew T. Raum , Michael E. Vercellino , Mark E. Froggatt
IPC分类号： G01J1/04
CPC分类号： G01D5/35303 , A61B1/00165 , A61B2034/2061 , G02B6/02042 , G02B6/022 , G02B6/34
摘要： The present invention is directed toward a fiber optic position and shape sensing device and the method of use. The device comprises an optical fiber means. The optical fiber means comprises either at least two single core optical fibers or a multicore optical fiber having at least two fiber cores. In either case, the fiber cores are spaced apart such that mode coupling between the fiber cores is minimized. An array of fiber Bragg gratings are disposed within each fiber core and a frequency domain reflectometer is positioned in an operable relationship to the optical fiber means. In use, the device is affixed to an object. Strain on the optical fiber is measured and the strain measurements correlated to local bend measurements. Local bend measurements are integrated to determine position and/or shape of the object.
摘要翻译：本发明涉及一种光纤位置和形状感测装置及其使用方法。该装置包括光纤装置。光纤装置包括至少两个单芯光纤或具有至少两个光纤芯的多芯光纤。在任一情况下，纤维芯间隔开，使得纤维芯之间的模式耦合最小化。光纤布拉格光栅阵列设置在每个光纤芯内，并且频域反射计位于与光纤装置可操作的关系中。在使用中，设备被固定在一个对象上。测量光纤上的应变，应变测量与局部弯曲测量相关。整合局部弯曲测量以确定物体的位置和/或形状。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式