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    • 12. 发明申请
    • Leakage Detection System
    • 泄漏检测系统
    • US20130090867A1
    • 2013-04-11
    • US13695613
    • 2011-05-12
    • Andrew Strong
    • Andrew Strong
    • G01M3/00G06F15/00
    • G01M3/007G01M3/002G01M3/2892G06F15/00
    • A system and method for identifying and measuring the quantity of leakage from a conduit used in the conveyance of a fluid, such as a hydrocarbon fluid, for example oil, or a gas, such as natural gas. The system includes a measurement device configured to measure a distributed temperature along a length of the conduit. The system further includes a processor configured to calculate a change in volume of the fluid in the conduit for each of a plurality of sections of the length of the conduit based on the distributed temperature. The processor is further configured to calculate a correction factor based on the change in volume of the fluid. The processor is also configured to calculate a corrected mass-balance differential using the correction factor, and compare the corrected mass-balance differential to a predetermined leakage threshold to identify whether a leak exists in the conduit.
    • 用于识别和测量用于输送流体(例如烃流体,例如油)或诸如天然气的气体的导管的泄漏量的系统和方法。 该系统包括测量装置,该测量装置被配置成沿导管的长度测量分布的温度。 该系统还包括处理器,该处理器被配置为基于分布的温度来计算管道长度的多个部分中的每一个的管道中的流体的变化。 处理器还被配置为基于流体体积的变化来计算校正因子。 处理器还被配置为使用校正因子来计算校正的质量平衡差分,并且将校正的质量平衡差与预定的泄漏阈值进行比较,以识别管道中是否存在泄漏。
    • 13. 发明申请
    • FAULT-TOLERANT DISTRIBUTED FIBER OPTIC INTRUSION DETECTION
    • 容错分布式光纤入侵检测
    • US20100117830A1
    • 2010-05-13
    • US12518971
    • 2007-12-06
    • Andrew StrongArthur H. Hartog
    • Andrew StrongArthur H. Hartog
    • G08B13/18
    • G08B13/186G01H9/004
    • An intrusion detection system for monitoring a premises includes at least one optical cable that houses at least one optical fiber and extends about the premises. Optical time domain reflectometry (OTDR) means is operably coupled to opposite first and second ends of the at least one optical fiber. The OTDR means includes first signal processing circuitry that analyzes the backscatter signal received via the first end of the at least one optical fiber in order to detect an intrusion of the premises, and second signal processing circuitry that analyzes the backscatter signal received via the second end of the at least one optical fiber in order to detect an intrusion of the premises. The redundancy of intrusions decisions made by the first and second signal processing circuitry can be verified. The system preferably further includes means for detecting a break in the at least one fiber, for identifying location of the break, for outputting to a user the location of the break, and for raising an alarm indicating the break.
    • 用于监视房屋的入侵检测系统包括至少一个光缆,其容纳至少一个光纤并且在房屋周围延伸。 光时域反射计(OTDR)装置可操作地耦合到至少一根光纤的相对的第一和第二端。 OTDR装置包括第一信号处理电路,其分析经由至少一个光纤的第一端接收的反向散射信号,以便检测房屋的入侵;以及第二信号处理电路,其分析经由第二端接收的反向散射信号 的至少一个光纤以便检测房屋的入侵。 可以验证由第一和第二信号处理电路进行的入侵决定的冗余。 该系统优选地还包括用于检测至少一根光纤中的断裂的装置,用于识别断裂的位置,用于向用户输出断裂的位置,以及用于提高指示断裂的报警。
    • 15. 发明申请
    • NOVEL DEPLOYMENT TECHNIQUE FOR OPTICAL FIBRES WITHIN PIPELINE COATINGS
    • 用于管道涂料中的光纤的新型部署技术
    • US20100034593A1
    • 2010-02-11
    • US12513808
    • 2007-11-01
    • Andrew Strong
    • Andrew Strong
    • F16L1/036F16L39/00F16L59/14
    • F16L1/036F16L59/143G01M11/086G02B6/4464
    • An improved method and system of deploying a pipeline for fiber optic sensing applications. A plurality of pipe sections (11) are provided each having an internal pipe (13) surrounded by material layer(s). Opposed ends (17A) of each pipe section have a portion of the surrounding layer(s) removed or omitted. A tubular member (19) extends lengthwise along each pipe section within the surrounding layer(s) and has free ends (19A) that extend from respective terminal walls (20A) of the surrounding layer(s). Adjacent pipe sections are joined together. The tubular members of adjacent pipe sections are joined together to form a conduit that extends along the pipeline. The conduit is adapted to carry one or more fiber optic waveguides therein. At least one second layer of material is applied to the area between the joined pipe sections. The surrounding layer and the at least one second layer provide for insulation and/or protection of the internal pipes of the pipeline.
    • 一种改进的光纤传感应用管道的部署方法和系统。 多个管段(11)设置有各自具有被材料层包围的内管(13)。 每个管段的相对端(17A)具有去除或省略的周围层的一部分。 管状构件(19)沿着周围层内的每个管段纵向地延伸并且具有从周围层的相应端壁(20A)延伸的自由端(19A)。 相邻管段连接在一起。 相邻管段的管状构件连接在一起以形成沿管道延伸的导管。 导管适于在其中承载一个或多个光纤波导。 至少一层第二层材料被施加到连接的管段之间的区域。 周围层和至少一个第二层提供管道的内部管道的绝缘和/或保护。