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41. 发明申请

WO2010136810A2 METHOD AND APPARATUS FOR OPTICAL SENSING 审中-公开
标题翻译：光学感测方法与装置
公开(公告)号：WO2010136810A2
公开(公告)日：2010-12-02
申请号：PCT/GB2010050889
申请日：2010-05-27
申请人： SILIXA LTD , FARHADIROUSHAN MAHMOUD , PARKER TOM RICHARD , SHATALIN SERGEY
发明人： FARHADIROUSHAN MAHMOUD , PARKER TOM RICHARD , SHATALIN SERGEY
IPC分类号： G01D5/353
CPC分类号： G01H9/004 , E21B47/0002 , E21B47/101 , G01D5/35303 , G01D5/35306 , G01D5/35325 , G01D5/35335 , G01D5/35358 , G01D5/35377 , G01D5/35383 , G01F1/66 , G01F1/661 , G01M11/331 , G01V1/40
摘要： The present invention provides novel apparatus and methods for fast quantitative measurement of perturbation of optical fields transmitted, reflected and/or scattered along a length of an optical fibre. The present invention can be used for point sensors as well as distributed sensors or the combination of both. In particular this technique can be applied to distributed sensors while extending dramatically the speed and sensitivity to allow the detection of acoustic perturbations anywhere along a length of an optical fibre while achieving fine spatial resolution. The present invention offers unique advantages in a broad range of acoustic sensing and imaging applications. Typical uses are for monitoring oil and gas wells such as for distributed flow metering and/or imaging, seismic imaging, monitoring long cables and pipelines, imaging within large vessel as well as for security applications.
摘要翻译：本发明提供了用于快速定量测量沿着光纤的长度传输，反射和/或散射的光场的扰动的新颖的装置和方法。本发明可用于点传感器以及分布式传感器或两者的组合。特别地，该技术可以应用于分布式传感器，同时显着地扩展速度和灵敏度，以允许在沿着光纤长度的任何地方检测声学扰动，同时实现精细的空间分辨率。本发明在广泛的声学感测和成像应用中提供了独特的优点。典型用途用于监测油气井，例如用于分布式流量计量和/或成像，地震成像，监测长电缆和管道，在大容器内成像以及安全应用。

42. 发明申请

WO2004046869A2 SYSTEM, DEVICE, AND METHOD FOR DETECTING PERTURBATIONS 审中-公开
标题翻译：用于检测刺激的系统，装置和方法
公开(公告)号：WO2004046869A2
公开(公告)日：2004-06-03
申请号：PCT/US2003/036680
申请日：2003-11-17
申请人： SPILLMAN, William, B, Jr , MEISSNER, Kenith, II , GONG, Jianmin , MAYER, Michael, F. , BENNETT, Jennifer, Diane
发明人： SPILLMAN, William, B, Jr , MEISSNER, Kenith, II , GONG, Jianmin , MAYER, Michael, F. , BENNETT, Jennifer, Diane
IPC分类号： G06F
CPC分类号： G01D5/35306 , G01D5/35341
摘要： Certain exemplary embodiments comprise a spatially distributed multimode optical fiber; a photodetector configured to detect optical signals provided from said fiber; a wireless digital module coupled to said photodetector and adapted to wirelessly transmit a wireless signal encoding a plurality of detected variables of the optical signals; a wireless receiver adapted to receive the wireless signal; and a signal processing module coupled to said wireless receiver and adapted to decode and interpret the plurality of detected variables of the optical signals.
摘要翻译：某些示例性实施例包括空间分布的多模光纤; 光检测器，被配置为检测从所述光纤提供的光信号; 耦合到所述光电检测器并适于无线地传输编码所述光信号的多个检测变量的无线信号的无线数字模块; 适于接收无线信号的无线接收机; 以及信号处理模块，其耦合到所述无线接收器并且适于对所述光信号的所述多个检测变量进行解码和解译。

43. 发明申请

WO2003098157A1 LIGHT SOURCE STABILISATION 审中-公开
标题翻译：光源稳定
公开(公告)号：WO2003098157A1
公开(公告)日：2003-11-27
申请号：PCT/GB2003/002045
申请日：2003-05-13
申请人： SENSOR HIGHWAY LIMITED , MCINNES, James , HADLEY, Maxwell, R. , HARTOG, Arthur, H. , CHEN, Yuehua , JEFFREYS, Timothy
发明人： MCINNES, James , HADLEY, Maxwell, R. , HARTOG, Arthur, H. , CHEN, Yuehua , JEFFREYS, Timothy
IPC分类号： G01D5/353
CPC分类号： G01D5/35306
摘要： An apparatus for sensing data from a remote optical sensor (16) has its frequency stabilised by balancing the outputs of narrow band filter (28, 30), spaced about a desired frequency (36) positioned at about the 3db down points (40) of a broad band light source (10) using voltage control, current control or temperature control to vary the frequency of the wide band light source (10). Difference between the outputs through the two narrow band filters (28, 30) can be used to drive an amplifier (48) to correct the frequency of the broad band light source. The outputs through the two narrow band filters (28, 30) can be converted (52) to binary numbers and fed to a microprocessor (56) which is used, via analog conversion (60), to drive the amplifier (48). The broad band light source (10) can be pulse modulated (68) to provide temporally separate light pulses (92, 94) through each of the narrow band filters (28, 30), measured at separate times. The corrective output to the amplifier (48) can be governed by a ratio between the outputs through the narrow band filters (28, 30) rather than by a difference there between.
摘要翻译：用于感测来自远程光学传感器（16）的数据的装置的频率通过平衡窄带滤波器（28,30）的输出而被稳定，窄带滤波器（28,30）的输出围绕位于大约3db下降点（40）处的期望频率（36）使用电压控制，电流控制或温度控制来改变宽带光源（10）的频率的宽带光源（10）。通过两个窄带滤波器（28,30）的输出之间的差可用于驱动放大器（48）来校正宽带光源的频率。通过两个窄带滤波器（28,30）的输出可以被转换为二进制数，并馈送到经由模拟转换（60）使用以驱动放大器（48）的微处理器（56）。可以对宽带光源（10）进行脉冲调制（68），以通过在分开的时间测量的每个窄带滤波器（28,30）提供时间上分离的光脉冲（92,94）。放大器（48）的校正输出可以由通过窄带滤波器（28,30）的输出之间的比率来控制，而不是由它们之间的差异来控制。

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