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公开(公告)号：US08023829B2
公开(公告)日：2011-09-20
申请号：US12064480
申请日：2006-08-17
CPC分类号： G01D5/35383 , H04L27/2096
摘要： Demodulation apparatus for demodulating phase-modulated signals comprises a quadrature signal generator (QSG) for generating in-phase (I) and quadrature-phase (Q) signals in response to an unmodulated input signal. The QSG provides fast frequency tracking of the input signal and excludes any high-frequency content the input signal.
摘要翻译： 用于解调相位调制信号的解调装置包括用于响应于未调制的输入信号产生同相（I）和正交相（Q）信号的正交信号发生器（QSG）。 QSG提供输入信号的快速跟踪，并排除任何高频内容的输入信号。
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公开(公告)号：US20090087136A1
公开(公告)日：2009-04-02
申请号：US12293172
申请日：2007-03-29
申请人： Philip John Nash , David John Hill
发明人： Philip John Nash , David John Hill
CPC分类号： G01H9/004 , G01D5/35383 , G01V1/16 , G01V1/184 , G01V1/186
摘要： A fibre-optic sensor package (10) comprises a serial array of fibre-optic sensing coils (14, 16, 18, 20, 22) each of which is comprised in a respective fibre-optic sensor. Four (14, 16, 18, 22) of the coils are housed in a protective casing (24). One of the coils (22) is comprised in a fibre-optic electromagnetic field sensor. The other coils are comprised in respective fibre-optic geophones and/or hydrophones. A single package of the invention allows detection of both seismic and electromagnetic signals. An array of packages of the invention provides detection of both seismic and electromagnetic signal at a series of positions over a long distance or wide area, thus avoiding the need for two conventional arrays. A packages of the invention, and an array of such packages, require little or no electrical power input.
摘要翻译： 光纤传感器封装（10）包括光纤传感线圈（14,16,18,20,22）的串联阵列，每个光纤传感线圈包括在相应的光纤传感器中。 四个（14,16,18,22）的线圈被容纳在保护壳体（24）中。 其中一个线圈（22）包含在光纤电磁场传感器中。 其他线圈包括在相应的光纤地震检波器和/或水听器中。 本发明的单个包装允许检测地震和电磁信号。 本发明的封装阵列提供在长距离或广泛区域上的一系列位置处的地震和电磁信号的检测，从而避免了对两个常规阵列的需要。 本发明的封装和这种封装的阵列需要很少或没有电力输入。
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公开(公告)号：US07345952B2
公开(公告)日：2008-03-18
申请号：US10504903
申请日：2003-02-06
申请人： Philip John Nash , Jonathan James Westhall , Geoffrey Alan Cranch , Michael Steven Henshaw , John Anstiss Churchill
发明人： Philip John Nash , Jonathan James Westhall , Geoffrey Alan Cranch , Michael Steven Henshaw , John Anstiss Churchill
摘要： An optical sensor assembly including a coupler and an optical fibre coil. The coupler is attached to the central member of the cable at a position where outer layers of the cable been removed. A first terminal of the coupler is connected to an optical fibre traveling along the cable in a fibre conduit external to the central strength member. A second terminal of the coupler is connected to a first end of the coil and a third terminal of the coupler is connected to an optical fibre a mirrored end. The coil is supported about a tubular mandrel, which mandrel fits over the cable. The other end of the coil is attached to the fibre in the cable. The mandrel is located about the cable at a position covering the coupler and the part of the cable where the outer layers are removed.
摘要翻译： 一种包括耦合器和光纤线圈的光学传感器组件。 耦合器在电缆的外层被去除的位置处附接到电缆的中心构件。 耦合器的第一端子连接到沿着电缆在中心强度构件外部的光纤导管中行进的光纤。 耦合器的第二端子连接到线圈的第一端，并且耦合器的第三端子连接到光纤的镜像端。 线圈围绕管状心轴支撑，该心轴装配在电缆上。 线圈的另一端连接到电缆中的光纤。 心轴围绕电缆定位在覆盖耦合器的位置和电缆的部分，其中外层被去除。
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公开(公告)号：US09599489B2
公开(公告)日：2017-03-21
申请号：US12282784
申请日：2007-03-08
CPC分类号： G01D5/35383 , G01D5/35303
摘要： A fiber-optic sensor array (100) comprises a line array of fiber-optic sensor packages (AX, BX, CX, DX, AY, BY, CY, DY, AZ, BZ, CZ, DZ) each having a package input/output (i/o) fiber and each being arranged to output a finite output pulse series of optical output pulses via the package i/o fiber in response to input thereto of one or more interrogating optical pulses. The array further comprises a fiber-optic bus (104,106, 108, 110) extending along the length of the line array, each package i/o fiber being optically coupled to the fiber-optic bus at a respective positions along the line array. The array allows interrogation at a higher frequency than is the case for a serial array of the same number of fiber-optic sensing packages.
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公开(公告)号：US20110096623A1
公开(公告)日：2011-04-28
申请号：US12999115
申请日：2009-06-15
CPC分类号： G01V1/24
摘要： A method of sensing using a phase based transducer in which a transducer response is provided at multiple different levels of sensitivity. The different levels of sensitivity are used to produce an output which does not overscale across a wide range of signal levels. This is particularly useful for use in conjunction with multiplexed arrays of fibre optic sensors for seismic surveying. Methods of sensor calibration and noise reduction are also described.
摘要翻译： 一种使用基于相位的传感器进行感测的方法，其中在多个不同灵敏度级别提供换能器响应。 使用不同的灵敏度水平来产生在宽范围的信号电平上不超标的输出。 这对于与用于地震测量的光纤传感器的复用阵列结合使用特别有用。 还描述了传感器校准和降噪的方法。
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公开(公告)号：US07440644B2
公开(公告)日：2008-10-21
申请号：US10506559
申请日：2003-03-03
申请人： Jonathan James Westhall , David John Hill , William Malcolm Babb , Philip John Nash , Steven Robert Thomson
发明人： Jonathan James Westhall , David John Hill , William Malcolm Babb , Philip John Nash , Steven Robert Thomson
摘要： An optical sensor assembly comprising a plurality of optical fibre sensor coils optically coupled by optical fibre; and an elongate support element, on which said plurality of optical fibre sensor coils and optically coupling optical fibre are mounted is disclosed. The support element has an elastic limit such that when said support element is bent from the elongate axis, the optical fibre fracture limit is reached before the elastic limit is reached. An array of these optical sensor assemblies, the mandrel on which the sensing coils are mounted and their method of manufacture are also disclosed.
摘要翻译： 一种光学传感器组件，包括通过光纤光耦合的多个光纤传感器线圈; 并且公开了一种细长的支撑元件，其上安装有所述多个光纤传感器线圈和光学耦合光纤。 支撑元件具有弹性极限，使得当所述支撑元件从细长轴线弯曲时，在达到弹性极限之前达到光纤断裂极限。 还公开了这些光学传感器组件的阵列，其上安装有感测线圈的心轴及其制造方法。
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公开(公告)号：US07282697B2
公开(公告)日：2007-10-16
申请号：US10502371
申请日：2003-01-15
CPC分类号： G01P15/093 , G01H9/004
摘要： A vibration sensing device, an acceleration sensing system and a method of manufacturing a vibration sensing device wherein the vibration sensing device comprises a flexible disk that is mounted symmetrically about a radial plane and has a mass located on the disk substantially symmetrical about this radial plane which exerts a force that is greater towards the edge than it is towards the centre of the disk. The vibration sensing device is sensitive to on-axis signals and insensitive to cross axis signals.
摘要翻译： 振动检测装置，加速度感测系统和制造振动感测装置的方法，其中所述振动感测装置包括围绕径向平面对称安装的柔性盘，并且具有位于所述盘上的质量基本上围绕该径向平面对称 对边缘施加比朝向磁盘中心更大的力。 振动检测装置对轴上信号敏感，对交叉轴信号不敏感。
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公开(公告)号：US20090220244A1
公开(公告)日：2009-09-03
申请号：US12064480
申请日：2006-08-17
CPC分类号： G01D5/35383 , H04L27/2096
摘要： Demodulation apparatus for demodulating phase-modulated signals comprises a quadrature signal generator (QSG) for generating in-phase (I) and quadrature-phase (Q) signals in response to an unmodulated input signal. The QSG provides fast frequency tracking of the input signal and excludes any high-frequency content the input signal.
摘要翻译： 用于解调相位调制信号的解调装置包括用于响应于未调制的输入信号产生同相（I）和正交相（Q）信号的正交信号发生器（QSG）。 QSG提供输入信号的快速跟踪，并排除任何高频内容的输入信号。
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公开(公告)号：US20090080828A1
公开(公告)日：2009-03-26
申请号：US12282784
申请日：2007-03-08
IPC分类号： G02B6/00
CPC分类号： G01D5/35383 , G01D5/35303
摘要： A fibre-optic sensor array (100) comprises a line array of fibre-optic sensor packages (AX, BX, CX, DX, AY, BY, CY, DY, AZ, BZ, CZ, DZ) each having a package input/output (i/o) fibre and each being arranged to output a finite output pulse series of optical output pulses via the package i/o fibre in response to input thereto of one or more interrogating optical pulses. The array further comprises a fibre-optic bus (104,106, 108, 110) extending along the length of the line array, each package i/o fibre being optically coupled to the fibre-optic bus at a respective positions along the line array. The array allows interrogation at a higher frequency than is the case for a serial array of the same number of fibre-optic sensing packages.
摘要翻译： 光纤传感器阵列（100）包括光纤传感器封装（AX，BX，CX，DX，AY，BY，CY，DY，AZ，BZ，CZ，DZ）的线阵列， 输出（i / o）光纤，并且每个光纤布置成响应于一个或多个询问光脉冲的输入，经由封装i / o光纤输出有限的输出脉冲序列的光输出脉冲。 阵列还包括沿着线阵列的长度延伸的光纤总线（104,106,108,110），每个封装i / o光纤在沿着线阵列的相应位置处光耦合到光纤总线。 该阵列允许以比相同数量的光纤传感封装的串行阵列的情况更高的频率进行询问。
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公开(公告)号：US07021146B2
公开(公告)日：2006-04-04
申请号：US10501375
申请日：2003-01-08
CPC分类号： G01V1/3835 , G01C9/00 , G01V1/20
摘要： The present invention provides an attitude sensing device and method for determining an attitude of a reference axis of a package containing a fiber optic sensor sensor. The attitude sensing device comprises an electro-mechanical attitude sensor for generating an electrical signal indicative of the attitude sensor, and converter logic for converting the electrical signal into a stimulus signal. A local power source is preferably provided for the electro-mechanical attitude sensor in the converter logic. The stimulus signal is such that the fiber optical sensor is responsive to the stimulus signal to cause a variation in at least one predetermined property of an optical signal transmitted through the fiber optic sensor, the attitude of the reference axis being determinable from the variation of the predetermined property. By this approach, it is possible to use the existing fiber optic sensor within the package, along with the corresponding existing telemetry and multiplexing system, to recover the information from the electro-mechanical attitude sensor.
摘要翻译： 本发明提供了一种用于确定包含光纤传感器传感器的包装的参考轴的姿态的姿态感测装置和方法。 姿态感测装置包括用于产生指示姿态传感器的电信号的电 - 机械姿态传感器和用于将电信号转换成刺激信号的转换器逻辑。 优选地，为转换器逻辑中的机电姿态传感器提供局部电源。 刺激信号使得光纤光学传感器响应于刺激信号而导致通过光纤传感器传输的光信号的至少一个预定特性的变化，参考轴的姿态可根据 预定的财产。 通过这种方法，可以使用包装内的现有光纤传感器以及相应的现有遥测和复用系统来从机电姿态传感器恢复信息。
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