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1. 发明授权

US08520195B2 Method and system for estimating fluid leak flow rates using distributed optical fiber sensors 有权
标题翻译：使用分布式光纤传感器估算流体泄漏流量的方法和系统
公开(公告)号：US08520195B2
公开(公告)日：2013-08-27
申请号：US12744112
申请日：2008-11-26
申请人： Rogerio Tadeu Ramos , Andrew Strong , Gareth Lees
发明人： Rogerio Tadeu Ramos , Andrew Strong , Gareth Lees
IPC分类号： G01N21/00
CPC分类号： G01M3/047 , G01D5/3537
摘要： A leak detection system and method is provided for a structure having a first barrier to a first fluid and a second barrier to a second fluid, the first barrier and the second barrier defining a space therebetween. The system includes at least one sensor, such as a fiber optic sensor, placed in the space and configured to detect presence of the first fluid or the second fluid in the space due to a fluid leak in the first barrier or the second barrier. The fiber optic sensor may further be configured to measure one or more characteristics of an acoustic emission caused by the leak, and the system and method may be able to estimate the orifice diameter of the fluid leak based on the measured one or more characteristics, and to calculate a leak rate based on the estimated orifice diameter.
摘要翻译：提供了一种用于具有对第一流体的第一屏障和对第二流体的第二屏障的结构的泄漏检测系统和方法，所述第一屏障和所述第二屏障在其间限定了空间。该系统包括放置在空间中的至少一个传感器，例如光纤传感器，并被配置为由于第一屏障或第二屏障中的流体泄漏而检测空间中的第一流体或第二流体的存在。光纤传感器还可以被配置为测量由泄漏引起的声发射的一个或多个特性，并且系统和方法可以能够基于测量的一个或多个特性来估计流体泄漏的孔口直径，以及以基于估计的孔直径来计算泄漏率。

2. 发明申请

US20100315630A1 METHOD AND SYSTEM FOR ESTIMATING FLUID LEAK FLOW RATES USING DISTRIBUTED OPTICAL FIBER SENSORS 有权
标题翻译：使用分布式光纤传感器估算流体泄漏流量的方法和系统
公开(公告)号：US20100315630A1
公开(公告)日：2010-12-16
申请号：US12744112
申请日：2008-11-26
申请人： Rogerio Tadeu Ramos , Andrew Strong , Gareth Lees
发明人： Rogerio Tadeu Ramos , Andrew Strong , Gareth Lees
IPC分类号： G01J3/44
CPC分类号： G01M3/047 , G01D5/3537
摘要： A leak detection system and method is provided for a structure having a first barrier to a first fluid and a second barrier to a second fluid, the first barrier and the second barrier defining a space therebetween. The system includes at least one sensor, such as a fiber optic sensor, placed in the space and configured to detect presence of the first fluid or the second fluid in the space due to a fluid leak in the first barrier or the second barrier. The fiber optic sensor may further be configured to measure one or more characteristics of an acoustic emission caused by the leak, and the system and method may be able to estimate the orifice diameter of the fluid leak based on the measured one or more characteristics, and to calculate a leak rate based on the estimated orifice diameter.
摘要翻译：提供了一种用于具有对第一流体的第一屏障和对第二流体的第二屏障的结构的泄漏检测系统和方法，所述第一屏障和所述第二屏障在其间限定了空间。该系统包括放置在空间中的至少一个传感器，例如光纤传感器，并被配置为由于第一屏障或第二屏障中的流体泄漏而检测空间中的第一流体或第二流体的存在。光纤传感器还可以被配置为测量由泄漏引起的声发射的一个或多个特性，并且系统和方法可以能够基于测量的一个或多个特性来估计流体泄漏的孔口直径，以及以基于估计的孔直径来计算泄漏率。

3. 发明授权

US09784642B2 Redundant optical fiber system and method for remotely monitoring the condition of a pipeline 有权
公开(公告)号：US09784642B2
公开(公告)日：2017-10-10
申请号：US13119231
申请日：2009-09-23
申请人： Andrew Strong , Gareth Lees , Roger Hampson , Kevin Williams , Arthur Hartog
发明人： Andrew Strong , Gareth Lees , Roger Hampson , Kevin Williams , Arthur Hartog
IPC分类号： G01N21/55 , G01M11/08 , G01M11/00
CPC分类号： G01M11/083 , G01M11/3154 , G01M11/39
摘要： An optical fiber sensor system and method for monitoring a condition of a linear structure such as a pipeline is provided which is capable of providing continuous monitoring in the event of a break in the sensing optical fiber or fibers. The system includes at least one sensing fiber provided along the length of the linear structure, and first and second interrogation and laser pumping sub-systems disposed at opposite ends of the sensing fiber, each of which includes a reflectometer. The reflectometer of the first interrogation and laser pumping sub-system is connected to one end of the sensing fiber. The reflectometer of the second interrogation and laser pumping sub-system is coupled to either (i) an end of a second sensing fiber provided along the length of the linear structure which is opposite from the one end of the first sensing fiber, or (ii) the opposite end of the first sensing fiber. Before any break of the sensing fiber or fibers occurs, each reflectometer redundantly monitors the condition of the linear structure over its entire length. After any such break occurs, each reflectometer will continue to receive signals up to the point of the break from opposite ends of the structure.

4. 发明申请

US20110242525A1 Redundant Optical Fiber System and Method for Remotely Monitoring the Condition of a Pipeline 有权
标题翻译：冗余光纤系统和远程监控管道状况的方法
公开(公告)号：US20110242525A1
公开(公告)日：2011-10-06
申请号：US13119231
申请日：2009-09-23
申请人： Andrew Strong , Gareth Lees , Roger Hampson , Kevin Williams , Arthur Hartog
发明人： Andrew Strong , Gareth Lees , Roger Hampson , Kevin Williams , Arthur Hartog
IPC分类号： G01N21/00
CPC分类号： G01M11/083 , G01M11/3154 , G01M11/39
摘要： An optical fiber sensor system and method for monitoring a condition of a linear structure such as a pipeline is provided which is capable of providing continuous monitoring in the event of a break in the sensing optical fiber or fibers. The system includes at least one sensing fiber provided along the length of the linear structure, and first and second interrogation and laser pumping sub-systems disposed at opposite ends of the sensing fiber, each of which includes a reflectometer. The reflectometer of the first interrogation and laser pumping sub-system is connected to one end of the sensing fiber. The reflectometer of the second interrogation and laser pumping sub-system is coupled to either (i) an end of a second sensing fiber provided along the length of the linear structure which is opposite from the one end of the first sensing fiber, or (ii) the opposite end of the first sensing fiber. Before any break of the sensing fiber or fibers occurs, each reflectometer redundantly monitors the condition of the linear structure over its entire length. After any such break occurs, each reflectometer will continue to receive signals up to the point of the break from opposite ends of the structure.
摘要翻译：提供了一种用于监视诸如管道之类的线性结构的状态的光纤传感器系统和方法，其能够在感测光纤或光纤中断时提供连续的监视。该系统包括沿着线性结构的长度提供的至少一个感测光纤，以及设置在感测光纤的相对端处的第一和第二询问和激光泵浦子系统，每个检测光纤包括反射计。第一询问和激光泵送子系统的反射计连接到感测光纤的一端。第二询问和激光泵送子系统的反射计耦合到（i）沿着与第一感测光纤的一端相对的线性结构的长度设置的第二感测光纤的端部，或者（ii ）第一感测光纤的相对端。在发生感测纤维或纤维的任何断裂之前，每个反射计在其整个长度上冗余地监视线性结构的状态。在发生任何这种中断之后，每个反射计将继续从结构的相对端接收到断裂点的信号。

5. 发明授权

US08547539B2 System and method for detection of flexible pipe armor wire ruptures 有权
标题翻译：弹性管铠装线断裂检测系统及方法
公开(公告)号：US08547539B2
公开(公告)日：2013-10-01
申请号：US13062701
申请日：2009-09-08
申请人： Rogerio Ramos , Gareth Lees , Stephen Mullens
发明人： Rogerio Ramos , Gareth Lees , Stephen Mullens
IPC分类号： G01N21/00 , G01B11/16 , G01J3/44
CPC分类号： G01B11/18 , G01L1/246 , G01M3/047 , G01M5/0025 , G01M5/0033 , G01M5/0091
摘要： A system and method for detecting breakage, rupture or malfunctioning of a pipe or cable structure, including sensing elements for monitoring the structure and placed in, on or around the structure for monitoring the breakage, rupture or malfunctioning of the structure. The sensing elements provide sensing data regarding events related to breakage, rupture or malfunctioning and are placed near the structure so as to perform a breakage, rupture or malfunction detection function, and within a distance sufficient to obtain a measureable strain, tension, torsion, vibration, acceleration, and/or temperature response signal based on the breakage, rupture or malfunctioning of the structure. One of the sensing elements is based on Coherent Rayleigh Noise (CRN) sensing techniques, and the system is configured to interpret the sensed data for determining the breakage, rupture or malfunctioning of the structure.
摘要翻译：一种用于检测管道或电缆结构的断裂，破裂或故障的系统和方法，包括用于监测结构并放置在结构中，周围或周围的感测元件，用于监测结构的断裂，破裂或故障。传感元件提供关于断裂，断裂或故障相关事件的检测数据，并放置在结构附近，以便执行断裂，破裂或故障检测功能，并且在足以获得可测量应变，张力，扭转，振动，基于结构的断裂，破裂或故障的加速度和/或温度响应信号。感测元件中的一个基于相干瑞利噪声（CRN）感测技术，并且该系统被配置为解释感测数据以确定结构的断裂，破裂或故障。

6. 发明申请

US20110292384A1 SYSTEM AND METHOD FOR DETECTION OF FLEXIBLE PIPE ARMOR WIRE RUPTURES 有权
标题翻译：用于检测柔性管道护臂线束断裂的系统和方法
公开(公告)号：US20110292384A1
公开(公告)日：2011-12-01
申请号：US13062701
申请日：2009-09-08
申请人： Rogerio Ramos , Gareth Lees , Stephen Mullens
发明人： Rogerio Ramos , Gareth Lees , Stephen Mullens
IPC分类号： G01J3/44 , G01N21/00
CPC分类号： G01B11/18 , G01L1/246 , G01M3/047 , G01M5/0025 , G01M5/0033 , G01M5/0091
摘要： A system and method for detecting breakage, rupture or malfunctioning of a pipe or cable structure, including sensing elements for monitoring the structure and placed in, on or around the structure for monitoring the breakage, rupture or malfunctioning of the structure. The sensing elements provide sensing data regarding events related to breakage, rupture or malfunctioning and are placed near the structure so as to perform a breakage, rupture or malfunction detection function, and within a distance sufficient to obtain a measureable strain, tension, torsion, vibration, acceleration, and/or temperature response signal based on the breakage, rupture or malfunctioning of the structure. One of the sensing elements is based on Coherent Rayleigh Noise (CRN) sensing techniques, and the system is configured to interpret the sensed data for determining the breakage, rupture or malfunctioning of the structure.
摘要翻译：一种用于检测管道或电缆结构的断裂，破裂或故障的系统和方法，包括用于监测结构并放置在结构中，周围或周围的感测元件，用于监测结构的断裂，破裂或故障。传感元件提供关于断裂，断裂或故障相关事件的检测数据，并放置在结构附近，以便执行断裂，破裂或故障检测功能，并且在足以获得可测量应变，张力，扭转，振动，基于结构的断裂，破裂或故障的加速度和/或温度响应信号。感测元件中的一个基于相干瑞利噪声（CRN）感测技术，并且该系统被配置为解释感测数据以确定结构的断裂，破裂或故障。

7. 发明申请

US20060056845A1 Optical signal demodulator 有权
标题翻译：光信号解调器
公开(公告)号：US20060056845A1
公开(公告)日：2006-03-16
申请号：US10502487
申请日：2003-01-23
申请人： Nicholas Parsons , Michael Duffield , Gareth Lees
发明人： Nicholas Parsons , Michael Duffield , Gareth Lees
IPC分类号： H04B10/24
CPC分类号： H04L27/223
摘要： An optical signal demodulator for demodulating an M-ary phase shift key (PSK) optical signal comprises a plurality of interferometers arranged such that the optical signal is divided between the interferometes. Each interferometer comprises a plurality of interferometer arms, each arm for transmitting a portion of the signal between an input and an output of the interferometer, the interferometer including an optical delay in one arm relative to another arm thereof. The optical delay between arms of an interferometer may be provided by an optical path length difference between the arms. The optical delay between arms of an interferometer may be different for one interferometer to that of another interferometer.
摘要翻译：用于解调M相移键（PSK）光信号的光信号解调器包括多个干涉仪，其布置成使得光信号在干涉仪之间被划分。每个干涉仪包括多个干涉仪臂，每个臂用于在干涉仪的输入和输出之间传送信号的一部分，所述干涉仪包括相对于另一个臂的一个臂中的光学延迟。干涉仪的臂之间的光学延迟可以由臂之间的光程长度差提供。干涉仪的臂之间的光学延迟对于一个干涉仪可能与另一个干涉仪的臂之间的光学延迟是不同的。

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