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1.发明授权公开(公告)号：US06501067B2
公开(公告)日：2002-12-31
申请号：US09726060
申请日：2000-11-29
IPC分类号： G01J104
CPC分类号： G01F1/666 , G01D5/35316 , G01D5/35374
摘要： An apparatus for non-intrusively sensing fluid flow within a pipe is provided. The apparatus includes an array of sensors that include a plurality of optical fiber coils. The array of sensors senses the fluid flow inside the pipe. At least one optical reflective device is disposed between adjacent optical fiber coils. An isolation pad is disposed between each optical reflective device and the pipe.
摘要翻译： 提供了一种用于非侵入式地感测管内流体流动的装置。 该装置包括包括多个光纤线圈的传感器阵列。 传感器阵列检测管道内的流体流动。 至少一个光学反射装置设置在相邻的光纤线圈之间。 隔离垫设置在每个光反射装置和管之间。
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2.发明授权Apparatus and method having an optical fiber disposed circumferentially around the pipe for measuring unsteady pressure within a pipe 有权具有围绕管道周向设置用于测量管内的不稳定压力的光纤的装置和方法公开(公告)号：US06959604B2
公开(公告)日：2005-11-01
申请号：US10224821
申请日：2002-08-21
CPC分类号： E21B47/06 , G01L1/246 , G01L11/025
摘要： A fiber optic pressure sensor for measuring unsteady pressures within a pipe include at least one optical fiber disposed circumferentially around a portion of a circumference of the pipe, which provides an optical signal indicative of the length of the optical fiber. An optical instrument measures the change in length of the optical fiber to determine the unsteady pressure within the pipe. The pressure sensor may include a plurality of optical fiber sections disposed circumferentially around a portion of the circumference of the pipe that are optically connected together by optical fiber sections disposed axially along the pipe. The optical fiber sections may include fiber Bragg gratings having substantially the same or different reflection wavelengths to permit for example the sensors to be axially distributed along the fiber using wavelength division multiplexing and/or time division multiplexing.
摘要翻译： 用于测量管道内的不稳定压力的光纤压力传感器包括至少一个围绕管道的圆周部分周向设置的光纤，其提供指示光纤长度的光学信号。 光学仪器测量光纤的长度变化，以确定管内的不稳定压力。 压力传感器可以包括围绕管的圆周的一部分周向设置的多个光纤段，其通过沿着管轴向设置的光纤段光学连接在一起。 光纤部分可以包括具有基本上相同或不同的反射波长的光纤布拉格光栅，以允许例如传感器使用波分复用和/或时分复用沿光纤轴向分布。
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3.发明授权Non-intrusive fiber optic pressure sensor for measuring unsteady pressures within a pipe 失效用于测量管道内不稳定压力的非侵入式光纤压力传感器公开(公告)号：US06450037B1
公开(公告)日：2002-09-17
申请号：US09344093
申请日：1999-06-25
申请人： Rebecca S. McGuinn , Daniel L. Gysling , Charles R. Winston , Allen R. Davis , John M. Faustino
发明人： Rebecca S. McGuinn , Daniel L. Gysling , Charles R. Winston , Allen R. Davis , John M. Faustino
IPC分类号： G01L900
CPC分类号： G01L1/246 , G01L11/025
摘要： Non-intrusive pressure sensors 14-18 for measuring unsteady pressures within a pipe 12 include an optical fiber 10 wrapped in coils 20-24 around the circumference of the pipe 12. The length or change in length of the coils 20-24 is indicative of the unsteady pressure in the pipe. Bragg gratings 310-324 impressed in the fiber 10 may be used having reflection wavelengths &lgr; that relate to the unsteady pressure in the pipe. One or more of sensors 14-18 may be axially distributed along the fiber 10 using wavelength division multiplexing and/or time division multiplexing.
摘要翻译： 用于测量管12内的不稳定压力的非侵入式压力传感器14-18包括围绕管12的圆周缠绕在线圈20-24中的光纤10.线圈20-24的长度或长度的变化指示 管道中的不稳定压力。 可以使用印在纤维10中的布拉格光栅310-324，其具有与管中的不稳定压力有关的反射波长。 传感器14-18中的一个或多个可以使用波分复用和/或时分复用沿光纤10轴向分布。
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公开(公告)号：US06782150B2
公开(公告)日：2004-08-24
申请号：US09740760
申请日：2000-11-29
申请人： Allen R. Davis , Daniel L. Gysling , Charles R. Winston , John M. Faustino , Rebecca S. McGuinn
发明人： Allen R. Davis , Daniel L. Gysling , Charles R. Winston , John M. Faustino , Rebecca S. McGuinn
IPC分类号： G02B600
CPC分类号： G01F1/668 , E21B47/102 , G01F1/666
摘要： An apparatus for non-intrusively sensing fluid flow within a pipe is provided. The apparatus includes a first sensing array for sensing acoustic signals traveling at the speed of sound through fluid flow within the pipe, a second sensing array for sensing local pressure variations traveling with the fluid flow, and a housing attached to the pipe for enclosing the sensing arrays. The first sensing array includes a plurality of first optical pressure sensors and the second sensing array includes a plurality of second optical pressure sensors.
摘要翻译： 提供了一种用于非侵入式地感测管内流体流动的装置。 该装置包括用于感测通过管内的流体流以声速传播的声信号的第一感测阵列，用于感测与流体流动一起行进的局部压力变化的第二感测阵列，以及附接到管道的壳体，用于封闭感测 阵列 第一感测阵列包括多个第一光学压力传感器，并且第二感测阵列包括多个第二光学压力传感器。
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