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公开(公告)号：US20120176606A1
公开(公告)日：2012-07-12
申请号：US13016814
申请日：2011-01-28
IPC分类号： G01N21/88
CPC分类号： G01M11/33 , G01D5/35361 , G01K11/32 , G01M5/0025 , G01M5/0033 , G01M5/0066 , G01M5/0091 , G01N2201/0886
摘要： A sweep sensor may include a signal source, a propagation medium, and a detector. By transmitting an interrogating signal from the signal source into the propagation medium, detectable disturbances along the medium can physically alter the characteristics of the medium, which may cause a measurable change in the backscattered signal at the detector. Based on the change, it may be possible to locate the geographic origins of the physical disturbances along the propagation medium, or to determine the nature of the disturbances, or both. For example, it is generally possible to estimate the approximate distance between the detector and the disturbance given the time required to obtain the backscattered signal and the velocity of the signal source in the propagation medium. Further, in some embodiments, it is possible to quantify the amount of disturbance.
摘要翻译： 扫描传感器可以包括信号源，传播介质和检测器。 通过从信号源传输询问信号到传播介质中，沿着介质的可检测的扰动可以物理地改变介质的特性，这可能导致检测器处的反向散射信号的可测量的变化。 基于这种变化，可以沿着传播介质定位物理扰动的地理起源，或者确定干扰的性质，或者两者。 例如，通常可以估计在获得反向散射信号所需的时间和传播介质中的信号源的速度之间的检测器和干扰之间的近似距离。 此外，在一些实施例中，可以量化扰动的量。
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公开(公告)号：US08705020B2
公开(公告)日：2014-04-22
申请号：US13016814
申请日：2011-01-28
IPC分类号： G01N21/00
CPC分类号： G01M11/33 , G01D5/35361 , G01K11/32 , G01M5/0025 , G01M5/0033 , G01M5/0066 , G01M5/0091 , G01N2201/0886
摘要： A sweep sensor may include a signal source, a propagation medium, and a detector. By transmitting an interrogating signal from the signal source into the propagation medium, detectable disturbances along the medium can physically alter the characteristics of the medium, which may cause a measurable change in the backscattered signal at the detector. Based on the change, it may be possible to locate the geographic origins of the physical disturbances along the propagation medium, or to determine the nature of the disturbances, or both. For example, it is generally possible to estimate the approximate distance between the detector and the disturbance given the time required to obtain the backscattered signal and the velocity of the signal source in the propagation medium. Further, in some embodiments, it is possible to quantify the amount of disturbance.
摘要翻译： 扫描传感器可以包括信号源，传播介质和检测器。 通过从信号源传输询问信号到传播介质中，沿着介质的可检测的扰动可以物理地改变介质的特性，这可能导致检测器处的反向散射信号的可测量的变化。 基于这种变化，可以沿着传播介质定位物理扰动的地理起源，或者确定干扰的性质，或者两者。 例如，通常可以估计在获得反向散射信号所需的时间和传播介质中的信号源的速度之间的检测器和干扰之间的近似距离。 此外，在一些实施例中，可以量化扰动的量。
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3.发明授权Distributed fiber sensor with interference detection and polarization state management 有权分布式光纤传感器，具有干扰检测和极化状态管理公开(公告)号：US07142736B2
公开(公告)日：2006-11-28
申请号：US10919547
申请日：2004-08-16
IPC分类号： G02B6/00
CPC分类号： G08B13/124 , G01L1/242 , G01M11/39 , G08B13/186
摘要： Polarization effects are managed to provide differential timing information for localizing disturbances affecting two or more counter-propagating light signals on one or more optical waveguides passing through a detection zone. Activity can be localized to a point for a security perimeter. Events causing optical disturbance can be mapped to points along a straight line, a perimeter or arbitrary pattern or an array. Events cause local changes in optical properties in the optical waveguide, in particular an optical fiber. Short term local changes are distinguishable from phase changes of light travel in the waveguide by managing the polarization state of input and output beams.
摘要翻译： 管理极化效应以提供差分定时信息，用于定位影响通过检测区域的一个或多个光波导上的两个或多个反向传播光信号的干扰。 活动可以本地化到安全边界的一个点。 导致光学干扰的事件可以映射到沿直线，周边或任意图案或阵列的点。 事件导致光波导中光学特性的局部变化，特别是光纤。 通过管理输入和输出光束的偏振状态，短波局部变化与波导中的光行进的相位变化是不同的。
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4.发明授权Distributed fiber sensor with detection and signal processing using polarization state management 失效分布式光纤传感器，具有使用偏振状态管理的检测和信号处理公开(公告)号：US07139476B2
公开(公告)日：2006-11-21
申请号：US10911326
申请日：2004-08-04
IPC分类号： H04B10/08
摘要： Polarization effects are managed to provide differential timing information for localizing disturbances affecting two or more counter-propagating light signals on one or more optical waveguides passing through a detection zone. Activity can be localized to a point for a security perimeter. Events causing optical disturbance can be mapped to points along a straight line, a perimeter or arbitrary pattern or an array. Events cause local changes in optical properties in the optical waveguide, in particular an optical fiber. Short term local changes are distinguishable from phase changes of light travel in the waveguide, by managing the polarization state of input and output beams, combining orthogonal polarization components and other aspects. The changes in the states of polarization of the counter-propagating light signals are determined and the temporal spacing of corresponding changes in polarization state are resolved to pinpoint the location of the event along the optical fiber.
摘要翻译： 管理极化效应以提供差分定时信息，用于定位影响通过检测区域的一个或多个光波导上的两个或多个反向传播光信号的干扰。 活动可以本地化到安全边界的一个点。 导致光学干扰的事件可以映射到沿直线，周边或任意图案或阵列的点。 事件导致光波导中光学特性的局部变化，特别是光纤。 通过管理输入和输出光束的偏振状态，组合正交偏振分量和其他方面，短期局部变化可以与波导中光行进的相位变化区别开来。 确定反向传播光信号的极化状态的变化，并且解决极化状态中相应变化的时间间隔，以确定事件沿光纤的位置。
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5.发明申请DETECTION AND LOCATION OF BOUNDARY INTRUSION, USING COMPOSITE VARIABLES DERIVED FROM PHASE MEASUREMENTS 失效使用从相位测量得到的复合变量的边界入侵检测和位置公开(公告)号：US20100014095A1
公开(公告)日：2010-01-21
申请号：US12438877
申请日：2007-08-29
IPC分类号： G01B9/02
CPC分类号： G08B13/186
摘要： A disturbance, such as vibration from human activity, is located along a fiberoptic waveguide configuration (301-304) with two interferometers (801, 802) of the same or different types, such as Mach-Zehnder, Sagnac, and Michelson interferometers. Carrier signals from a source (101) are split at the interferometer inputs (201, 202) and re-combined at the outputs (701, 702) after propagating through the detection zone (401), where phase variations are induced by the disturbance (501). Phase responsive receivers (901, 902) detect phase relationships (1001, 1002) between the carrier signals over time. A processor (1101) combines the phase relationships into composite signals according to equations that differ for different interferometer configurations, with a time lag between or a ratio of the composite signals representing the location of the disturbance. The detected and composite values are unbounded, permitting phase displacement to exceed the carrier period and allowing disturbances of variable magnitudes to be located.
摘要翻译： 沿着具有相同或不同类型的两个干涉仪（801,802）的光纤波导配置（301-304）位于诸如Mach-Zehnder，Sagnac和Michelson干涉仪之间的干扰，例如来自人类活动的振动。 来自源（101）的载波信号在干涉仪输入（201,202）处被分离，并且在传播通过检测区（401）之后在输出（701,702）处重新组合，其中相位变化由干扰引起 501）。 相位响应接收器（901,902）检测载波信号随时间的相位关系（1001,1002）。 处理器（1101）根据对不同干涉仪配置不同的方程将相位关系组合成复合信号，其中表示干扰位置的复合信号之间的时间间隔或比率。 检测和复合值是无限制的，允许相位位移超过载波周期，并允许定位可变幅度的干扰。
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公开(公告)号：US20070253662A1
公开(公告)日：2007-11-01
申请号：US11570481
申请日：2005-04-01
IPC分类号： G02B6/10
CPC分类号： G01M11/39 , G02B6/2766 , G08B13/184 , G08B13/186 , G08B13/2491 , H04B10/0771
摘要： The location of a physical disturbance along an optical waveguide is determined by measuring different propagation times for the resulting phase variation to propagate to phase responsive receivers at ends of bidirectional signal paths. Each receiver can have a coupler that functions as a beam combiner and as a beam splitter inserting the opposite signal. On each receiving end, the coupler provides one or more detectors with signals from which phase related independent variable values are taken, processed and mapped to phase angles. Relative phase angle versus time is derived for each opposite signal pair and correlated at a time difference, i.e., a difference in propagation time from which the location of the disturbance is resolved. Polarization sensitive and polarization insensitive examples are discussed with various optical fiber arrangements.
摘要翻译： 沿着光波导的物理扰动的位置通过测量所得到的相位变化的不同传播时间来确定，以在双向信号路径的端部传播到相位响应接收机。 每个接收机可以具有用作波束组合器的耦合器和用于插入相反信号的分束器。 在每个接收端，耦合器向一个或多个检测器提供信号，从相位相关的独立变量值被采取，处理并映射到相位角。 对于每个相对的信号对导出相对相位角对时间，并且在时间差处相关，即，扰乱位置从该差异被解析的传播时间差。 与各种光纤布置讨论偏振敏感和极化不敏感的示例。
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7.发明申请Distributed fiber sensor with detection and signal processing using polarization state management 失效分布式光纤传感器，具有使用偏振状态管理的检测和信号处理公开(公告)号：US20050276611A1
公开(公告)日：2005-12-15
申请号：US10911326
申请日：2004-08-04
摘要： Polarization effects are managed to provide differential timing information for localizing disturbances affecting two or more counter-propagating light signals on one or more optical waveguides passing through a detection zone. Activity can be localized to a point for a security perimeter. Events causing optical disturbance can be mapped to points along a straight line, a perimeter or arbitrary pattern or an array. Events cause local changes in optical properties in the optical waveguide, in particular an optical fiber. Short term local changes are distinguishable from phase changes of light travel in the waveguide, by managing the polarization state of input and output beams, combining orthogonal polarization components and other aspects. The changes in the states of polarization of the counter-propagating light signals are determined and the temporal spacing of corresponding changes in polarization state are resolved to pinpoint the location of the event along the optical fiber.
摘要翻译： 管理极化效应以提供差分定时信息，用于定位影响通过检测区域的一个或多个光波导上的两个或多个反向传播光信号的干扰。 活动可以本地化到安全边界的一个点。 导致光学干扰的事件可以映射到沿直线，周边或任意图案或阵列的点。 事件导致光波导中光学特性的局部变化，特别是光纤。 通过管理输入和输出光束的偏振状态，组合正交偏振分量和其他方面，短期局部变化可以与波导中光行进的相位变化区别开来。 确定反向传播光信号的极化状态的变化，并且解决极化状态中相应变化的时间间隔，以确定事件沿光纤的位置。
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8.发明申请Distributed fiber sensor with interference detection and polarization state management 有权分布式光纤传感器，具有干扰检测和极化状态管理公开(公告)号：US20050147341A1
公开(公告)日：2005-07-07
申请号：US10919547
申请日：2004-08-16
IPC分类号： G01L1/24 , G08B13/12 , G08B13/186 , G02B6/00
CPC分类号： G08B13/124 , G01L1/242 , G01M11/39 , G08B13/186
摘要： Polarization effects are managed to provide differential timing information for localizing disturbances affecting two or more counter-propagating light signals on one or more optical waveguides passing through a detection zone. Activity can be localized to a point for a security perimeter. Events causing optical disturbance can be mapped to points along a straight line, a perimeter or arbitrary pattern or an array. Events cause local changes in optical properties in the optical waveguide, in particular an optical fiber. Short term local changes are distinguishable from phase changes of light travel in the waveguide by managing the polarization state of input and output beams.
摘要翻译： 管理极化效应以提供差分定时信息，用于定位影响通过检测区域的一个或多个光波导上的两个或多个反向传播光信号的干扰。 活动可以本地化到安全边界的一个点。 导致光学干扰的事件可以映射到沿直线，周边或任意图案或阵列的点。 事件导致光波导中光学特性的局部变化，特别是光纤。 通过管理输入和输出光束的偏振状态，短波局部变化与波导中的光行进的相位变化是不同的。
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9.发明授权Detection and location of boundary intrusion, using composite variables derived from phase measurements 失效边界入侵的检测和定位，使用从相位测量得出的复合变量公开(公告)号：US08395782B2
公开(公告)日：2013-03-12
申请号：US12438877
申请日：2007-08-29
IPC分类号： G01B9/02
CPC分类号： G08B13/186
摘要： A disturbance, such as vibration from human activity, is located along a fiberoptic waveguide configuration (301-304) with two interferometers (801, 802) of the same or different types, such as Mach-Zehnder, Sagnac, and Michelson interferometers. Carrier signals from a source (101) are split at the interferometer inputs (201, 202) and re-combined at the outputs (701, 702) after propagating through the detection zone (401), where phase variations are induced by the disturbance (501). Phase responsive receivers (901, 902) detect phase relationships (1001, 1002) between the carrier signals over time. A processor (1101) combines the phase relationships into composite signals according to equations that differ for different interferometer configurations, with a time lag between or a ratio of the composite signals representing the location of the disturbance. The detected and composite values are unbounded, permitting phase displacement to exceed the carrier period and allowing disturbances of variable magnitudes to be located.
摘要翻译： 沿着具有相同或不同类型的两个干涉仪（801,802）的光纤波导配置（301-304）位于诸如Mach-Zehnder，Sagnac和Michelson干涉仪之间的干扰，例如来自人类活动的振动。 来自源（101）的载波信号在干涉仪输入（201,202）处被分离，并且在传播通过检测区（401）之后在输出（701,702）处重新组合，其中相位变化由干扰引起 501）。 相位响应接收器（901,902）检测载波信号随时间的相位关系（1001,1002）。 处理器（1101）根据对不同干涉仪配置不同的方程将相位关系组合成复合信号，其中表示干扰位置的复合信号之间的时间间隔或比率。 检测和复合值是无限制的，允许相位位移超过载波周期，并允许定位可变幅度的干扰。
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公开(公告)号：US07725026B2
公开(公告)日：2010-05-25
申请号：US11570481
申请日：2005-04-01
IPC分类号： H04B10/08
CPC分类号： A61K9/0014 , A61K8/25 , A61K8/26 , A61K8/27 , A61K8/368 , A61K8/922 , A61K8/97 , A61K36/185 , A61K36/54 , A61K36/63 , A61K36/736 , A61K36/82 , A61K36/886 , A61K36/889 , A61K36/899 , A61K2800/31 , A61K2800/522 , A61Q19/00 , A61Q19/001 , A61K2300/00
摘要： The location of a physical disturbance along an optical waveguide is determined by measuring different propagation times for the resulting phase variation to propagate to phase responsive receivers at ends of bidirectional signal paths. Each receiver can have a coupler that functions as a beam combiner and as a beam splitter inserting the opposite signal. On each receiving end, the coupler provides one or more detectors with signals from which phase related independent variable values are taken, processed and mapped to phase angles. Relative phase angle versus time is derived for each opposite signal pair and correlated at a time difference, i.e., a difference in propagation time from which the location of the disturbance is resolved. Polarization sensitive and polarization insensitive examples are discussed with various optical fiber arrangements.
摘要翻译： 沿着光波导的物理扰动的位置通过测量所得到的相位变化的不同传播时间来确定，以在双向信号路径的端部传播到相位响应接收机。 每个接收机可以具有用作波束组合器的耦合器和用于插入相反信号的分束器。 在每个接收端，耦合器向一个或多个检测器提供信号，从相位相关的独立变量值被采取，处理并映射到相位角。 对于每个相对的信号对导出相对相位角对时间，并且在时间差处相关，即，扰乱位置从该差异被解析的传播时间差。 与各种光纤布置讨论偏振敏感和极化不敏感的示例。
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