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公开(公告)号：US08576386B2
公开(公告)日：2013-11-05
申请号：US12523179
申请日：2008-01-25
IPC分类号： G01L1/24
CPC分类号： G01H9/004
摘要： A vibration detector (1) comprising at least one fiber optic sensor (2) mechanically coupled to a flexible support member (3). The vibration detector (1) is mounted on the outside of the pipeline and a signal from the fiber optic sensor is measured. This signal is indicative of whether the vibration detector is experiencing vibrations due to collisions of contaminant particles with each other and/or with the walls of the pipeline. A method for detecting particulate contaminants in a fluid flowing in a pipeline is also provided.
摘要翻译： 一种振动检测器（1），包括至少一个光纤传感器（2），机械耦合到柔性支撑构件（3）。 振动检测器（1）安装在管道的外侧，并测量来自光纤传感器的信号。 该信号指示振动检测器是否由于污染物颗粒彼此和/或与管道的壁碰撞而经历振动。 还提供了一种用于检测在管道中流动的流体中的微粒污染物的方法。
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公开(公告)号：US20090052832A1
公开(公告)日：2009-02-26
申请号：US11721083
申请日：2005-11-30
IPC分类号： G02B6/00
CPC分类号： F17D5/02 , F16L41/021 , G01B11/165 , G01B11/18
摘要： Structural joint strain monitoring apparatus 92 comprises jacket means 52 in the form of first and second jacket elements 62, each having a primary jacket part 62a and substantially perpendicular secondary jacket part 62b which together define a compartment for receiving a joint, between two pipes 54, 56, to be monitored. The jacket means 52 additionally comprises two primary web elements 76, 78 provided between the primary and secondary jacket parts 62a, 62b. Three fibre Bragg grating (FBG) strain sensors 96, 98, 100 and an FBG temperature sensor 102 are provided within an optical fibre 104, bonded to the primary web elements 76, 78 and each end of the second jacket element 62 respectively, for measuring strain or temperature at their respective locations. The FBG sensors 96, 98, 100, 102 are optically coupled, via optical fibre 104, to optical fibre sensor interrogation apparatus 94, operable to interrogate each FBG sensor.
摘要翻译： 结构关节应变监测装置92包括形式为第一和第二护套元件62的护套装置52，每个护套元件62具有主护套部分62a和基本上垂直的第二护套部分62b，它们一起限定了两个管道54之间的接头的隔室， 56，待监测。 护套装置52另外包括设置在初级和次级护套部件62a，62b之间的两个主要腹板元件76,78。 三根光纤布拉格光栅（FBG）应变传感器96,98,100和FBG温度传感器102分别设置在光纤104内，分别结合到主网状元件76,78和第二护套元件62的每端，用于测量 应变或温度。 FBG传感器96,98,100,102通过光纤104被光耦合到光纤传感器询问设备94，光纤传感器询问设备94可操作以询问每个FBG传感器。
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公开(公告)号：US08576385B2
公开(公告)日：2013-11-05
申请号：US12443901
申请日：2007-10-12
IPC分类号： G01B11/16
CPC分类号： G01B11/16 , G01L1/246 , G01L9/0007
摘要： A pressure sensor (10) comprising fiber Bragg grating (FBG) strain sensors (12) provided within an optical fiber (14), an optical fiber strain sensor carrier rod 16 and a pressure intensifying sleeve (18). The carrier rod (16) is formed from a first glass fiber reinforced epoxy resin composite material having a first stiffness/elastic modulus the direction of strain sensing. The sleeve (18) is formed from a second composite material, having a lower axial stiffness in the direction of strain sensing than that of the carrier rod (16). Under an applied hydrostatic load, the sleeve (18) exerts an axial compressive load onto the section of rod (16) within the sleeve (18). The axial compressive strain experienced by the rod (16) is thereby increased in the region within the sleeve (18) compared to the axial compressive strain that would be produced in the rod (16) if the sleeve (18) was not present.
摘要翻译： 一种压力传感器（10），包括设置在光纤（14）内的光纤布拉格光栅（FBG）应变传感器（12），光纤应变传感器载体杆16和增压套筒（18）。 承载杆（16）由具有应变感测方向的第一刚度/弹性模量的第一玻璃纤维增强环氧树脂复合材料形成。 套筒（18）由第二复合材料形成，在应变感测方向上具有比载体杆（16）的低的轴向刚度。 在施加的静水负荷下，套筒（18）在套筒（18）内的杆（16）的部分上施加轴向压缩载荷。 因此，如果套筒（18）不存在，则与在杆（16）中产生的轴向压缩应变相比，杆（16）所经受的轴向压缩应变因此在套筒（18）内的区域中增加。
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公开(公告)号：US20110096321A1
公开(公告)日：2011-04-28
申请号：US12443901
申请日：2007-10-12
IPC分类号： G01L1/24
CPC分类号： G01B11/16 , G01L1/246 , G01L9/0007
摘要： A pressure sensor (10) comprising fibre Bragg grating (FBG) strain sensors (12) provided within an optical fibre (14), an optical fibre strain sensor carrier rod 16 and a pressure intensifying sleeve (18). The carrier rod (16) is formed from a first glass fibre reinforced epoxy resin composite material having a first stiffness/elastic modulus the direction of strain sensing. The sleeve (18) is formed from a second composite material, having a lower axial stiffness in the direction of strain sensing than that of the carrier rod (16). Under an applied hydrostatic load, the sleeve (18) exerts an axial compressive load onto the section of rod (16) within the sleeve (18). The axial compressive strain experienced by the rod (16) is thereby increased in the region within the sleeve (18) compared to the axial compressive strain that would be produced in the rod (16) if the sleeve (18) was not present.
摘要翻译： 一种压力传感器（10），包括设置在光纤（14）内的光纤布拉格光栅（FBG）应变传感器（12），光纤应变传感器载体杆16和增压套筒（18）。 承载杆（16）由具有应变感测方向的第一刚度/弹性模量的第一玻璃纤维增强环氧树脂复合材料形成。 套筒（18）由第二复合材料形成，在应变感测方向上具有比载体杆（16）的低的轴向刚度。 在施加的静水负荷下，套筒（18）在套筒（18）内的杆（16）的部分上施加轴向压缩载荷。 因此，如果套筒（18）不存在，则与在杆（16）中产生的轴向压缩应变相比，杆（16）所经受的轴向压缩应变因此在套筒（18）内的区域中增加。
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公开(公告)号：US20100134782A1
公开(公告)日：2010-06-03
申请号：US12445555
申请日：2007-10-22
IPC分类号： G01B11/16
CPC分类号： G01B11/165 , E21B17/015 , E21B47/0006
摘要： A curvature sensing device 10 comprising, a first fibre Bragg grating (FBG) strain sensor 12, a second FBG strain sensor 14, a flexible piece comprising two end pieces 16, 18 joined by a tubular mid-section 20. The device 10 further comprises 16 contact rollers 22 provided on the internal surfaces of the end pieces 16, 18, which maintain the end pieces 16, 18 tangential to a pipe around which the device 10 is located. The FBG strain sensors 12, 14 are embedded within the mid-section 20 and are arranged in two generally orthogonal planes, so that the curvature is measured in two dimensions. This enables the device 10 to detect both the magnitude and direction of bending/curvature within a pipe. Bending in a pipe is transferred through the end pieces 16, 18 to the mid-section 20. The FBG sensors 12, 14 measure bending of the mid-section 20 from which bending of the pipe can be inferred.
摘要翻译： 曲率感测装置10包括：第一光纤布拉格光栅（FBG）应变传感器12，第二FBG应变传感器14，包括由管状中间部分20连接的两个端部件16,18的柔性件。装置10还包括 设置在末端件16,18的内表面上的16个接触辊22，其保持端部件16,18与设备10所在的管道相切。 FBG应变传感器12,14嵌入在中间部分20内并且被布置在两个大致正交的平面中，使得曲率在两个维度上被测量。 这使得装置10能够检测管道内的弯曲/曲率的大小和方向。 管道中的弯曲通过端部件16,18传递到中间部分20.FGG传感器12,14测量中间部分20的弯曲，从中可以推断出管道的弯曲。
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公开(公告)号：US20100232963A1
公开(公告)日：2010-09-16
申请号：US12377950
申请日：2007-08-20
CPC分类号： G01L1/246 , F03D1/065 , F03D17/00 , F05B2270/804 , F05B2270/808 , G01M5/0016 , G01M5/0041 , G01M5/0091 , G01M11/083 , Y02E10/721 , Y10T29/49316
摘要： A load monitoring system for wind turbine blades utilizes optical fibre strain sensors (5) moulded into the turbine blades. A sensor monitoring instrument is located in the hub (3) of the turbine. Various arrangements of cabling are disclosed to maximize fault tolerance. Various arrangements of a temperature compensation device for the strain sensors is also disclosed. The strain sensors (5) and optical fibre (7) may be provided on a pre-cured patch (9) for incorporation in the structure of the turbine blade. Furthermore, it is disclosed that each blade comprises an optical fibre strain sensor and a cable to connect the sensors to processing equipment, wherein each such cable includes a connector at each end whereby each blade can be replaced independently. Also, it is shown to provide an output connector for connecting the sensor to processing equipment in a cavity that is filled with a material for inhibiting free movement of the output connector.
摘要翻译： 用于风力涡轮机叶片的负载监测系统利用模制在涡轮叶片中的光纤应变传感器（5）。 传感器监测仪器位于涡轮机的轮毂（3）中。 披露了布线的各种布置以最大化容错。 还公开了用于应变传感器的温度补偿装置的各种布置。 应变传感器（5）和光纤（7）可以设置在预固化贴片（9）上，用于结合在涡轮叶片的结构中。 此外，公开了每个叶片包括光纤应变传感器和用于将传感器连接到处理设备的电缆，其中每个这样的电缆在每个端部处包括连接器，由此可以独立地替换每个叶片。 而且，显示出提供一种用于将传感器连接到填充有用于抑制输出连接器的自由移动的材料的空腔中的处理设备的输出连接器。
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公开(公告)号：US07660496B2
公开(公告)日：2010-02-09
申请号：US11721083
申请日：2005-11-30
IPC分类号： G02B6/44
CPC分类号： F17D5/02 , F16L41/021 , G01B11/165 , G01B11/18
摘要： Structural joint strain monitoring apparatus 92 comprises jacket means 52 in the form of first and second jacket elements 62, each having a primary jacket part 62a and substantially perpendicular secondary jacket part 62b which together define a compartment for receiving a joint, between two pipes 54, 56, to be monitored. The jacket means 52 additionally comprises two primary web elements 76, 78 provided between the primary and secondary jacket parts 62a, 62b. Three fiber Bragg grating (FBG) strain sensors 96, 98, 100 and an FBG temperature sensor 102 are provided within an optical fiber 104, bonded to the primary web elements 76, 78 and each end of the second jacket element 62 respectively, for measuring strain or temperature at their respective locations. The FBG sensors 96, 98, 100, 102 are optically coupled, via optical fiber 104, to optical fiber sensor interrogation apparatus 94, operable to interrogate each FBG sensor.
摘要翻译： 结构关节应变监测装置92包括形式为第一和第二护套元件62的护套装置52，每个护套元件62具有主护套部分62a和基本上垂直的第二护套部分62b，它们一起限定了两个管道54之间的接头的隔室， 56，待监测。 护套装置52另外包括设置在初级和次级护套部件62a，62b之间的两个主要腹板元件76,78。 三根光纤布拉格光栅（FBG）应变传感器96,98,100和FBG温度传感器102分别设置在光纤104内，分别结合到主网状元件76,78和第二护套元件62的每一端，以便测量 应变或温度。 FBG传感器96,98,100,102通过光纤104被光耦合到光纤传感器询问设备94，光纤传感器询问设备94可操作以询问每个FBG传感器。
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公开(公告)号：US20090217769A1
公开(公告)日：2009-09-03
申请号：US12281426
申请日：2007-02-17
CPC分类号： G01B11/18 , G01B11/255 , G01L1/246 , G01M5/0025 , G01M5/0041 , G01M5/0091 , G01M11/086 , G01N2203/0023 , G01N2203/0274 , G01N2203/0641 , G01N2203/0682
摘要： Apparatus (10) for monitoring changes in the shape of a hollow structure (20) comprises a flexible elongate support (12), which includes several optical fibre strain sensors (14, 16, 18) each arranged to measure strain in the longitudinal direction of the support (12). The strain sensors (14, 16, 18) are spaced in a direction perpendicular to the longitudinal direction of the support and the support is adapted to bear against the inner surface of the hollow structure (20), such that changes in shape of the structure along the longitudinal direction result in generally corresponding changes in shape of the support.
摘要翻译： 用于监测中空结构（20）形状变化的装置（10）包括柔性细长支撑件（12），其包括若干光纤应变传感器（14,16,18），每个光纤应变传感器被设置成测量纵向方向上的应变 支架（12）。 应变传感器（14,16,18）在与支撑件的纵向方向垂直的方向上间隔开，并且支撑件适于承受中空结构（20）的内表面，使得结构形状的变化 沿着纵向导致支撑件的形状大致相应的变化。
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公开(公告)号：US08610882B2
公开(公告)日：2013-12-17
申请号：US12445555
申请日：2007-10-22
IPC分类号： G01B11/16
CPC分类号： G01B11/165 , E21B17/015 , E21B47/0006
摘要： A curvature sensing device 10 comprising, a first fiber Bragg grating (FBG) strain sensor 12, a second FBG strain sensor 14, a flexible piece comprising two end pieces 16, 18 joined by a tubular mid-section 20. The device 10 further comprises 16 contact rollers 22 provided on the internal surfaces of the end pieces 16, 18, which maintain the end pieces 16, 18 tangential to a pipe around which the device 10 is located. The FBG strain sensors 12, 14 are embedded within the mid-section 20 and are arranged in two generally orthogonal planes, so that the curvature is measured in two dimensions. This enables the device 10 to detect both the magnitude and direction of bending/curvature within a pipe. Bending in a pipe is transferred through the end pieces 16, 18 to the mid-section 20. The FBG sensors 12, 14 measure bending of the mid-section 20 from which bending of the pipe can be inferred.
摘要翻译： 曲率感测装置10包括：第一光纤布拉格光栅（FBG）应变传感器12，第二FBG应变传感器14，包括由管状中间部分20连接的两个端部件16,18的柔性件。装置10还包括 设置在末端件16,18的内表面上的16个接触辊22，其保持端部件16,18与设备10所在的管道相切。 FBG应变传感器12,14嵌入在中间部分20内并且被布置在两个大致正交的平面中，使得曲率在两个维度上被测量。 这使得装置10能够检测管道内的弯曲/曲率的大小和方向。 管道中的弯曲通过端部件16,18传递到中间部分20.FGG传感器12,14测量中间部分20的弯曲，从中可以推断出管道的弯曲。
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公开(公告)号：US20110085156A1
公开(公告)日：2011-04-14
申请号：US12523179
申请日：2008-01-25
IPC分类号： G01L1/24
CPC分类号： G01H9/004
摘要： A vibration detector (1) comprising at least one fibre optic sensor (2) mechanically coupled to a flexible support member (3). The vibration detector (1) is mounted on the outside of the pipeline and a signal from the fibre optic sensor is measured. This signal is indicative of whether the vibration detector is experiencing vibrations due to collisions of contaminant particles with each other and/or with the walls of the pipeline. A method for detecting particulate contaminants in a fluid flowing in a pipeline is also provided.
摘要翻译： 一种振动检测器（1），包括至少一个光纤传感器（2），机械耦合到柔性支撑构件（3）。 振动检测器（1）安装在管道的外侧，并测量来自光纤传感器的信号。 该信号指示振动检测器是否由于污染物颗粒彼此和/或与管道的壁碰撞而经历振动。 还提供了一种用于检测在管道中流动的流体中的微粒污染物的方法。
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