-
公开(公告)号：US10073005B2
公开(公告)日：2018-09-11
申请号：US15116464
申请日：2014-06-16
发明人： Hua Xia , David L. Perkins , John L. Maida , Sean Gregory Thomas
IPC分类号： G01N21/00 , G01M11/08 , E21B47/12 , G01B11/16 , G01M11/00 , E21B47/00 , G01V8/10 , G01N21/95
CPC分类号： G01M11/086 , E21B47/00 , E21B47/123 , G01B11/16 , G01M11/083 , G01M11/31 , G01N2021/9511 , G01V8/10
摘要： In some embodiments, a distributed nondestructive inspection method for slickline cable structural defect detection transmits a light pulse along an optical waveguide in the slickline cable. A reflected light signal is 5 received from the optical waveguide in response to the light pulse. Defects can then be determined in the slickline cable based on variations in scattering intensity, phase shift, specific spectral signature, power spectral density, strain amplitude, and/or transmission loss of the reflected light signal as compared to the light pulse.
-
2.发明申请公开(公告)号：US20180164526A1
公开(公告)日：2018-06-14
申请号：US15835814
申请日：2017-12-08
发明人： Derek Geiger , Marcus D. Cappelli , Jonathan K. Garhart , Avinash Sarlashkar , Andrew Brookhart , Mark W. Davis
CPC分类号： G01L1/242 , B64D2045/0085 , G01L1/24 , G01M5/0016 , G01M5/0033 , G01M5/0041 , G01M5/0091 , G01M11/083 , G01N2021/8472 , G02B6/02033 , G02B6/4471 , G07C5/0816 , H04B10/071
摘要： A fiber-optic sensor system includes a structure having a fiber-optic cable operatively connected thereto. The system includes a network controller with an interrogator operatively connected to the fiber-optic cable to receive optical energy indicative of a characteristic of the structure therefrom and convert optical energy to electrical energy and electrical energy to optical energy for data communication. A sensor and/or a data source are operatively connected to the fiber-optic cable through the network controller to transmit data through the fiber-optic cable and receive data therefrom.
-
3.发明授权公开(公告)号：US09846105B2
公开(公告)日：2017-12-19
申请号：US14945279
申请日：2015-11-18
申请人： Southeast University
发明人： Zhishen Wu , Caiqian Yang , An Sun , Wan Hong , Yongsheng Tang
CPC分类号： G01M11/00 , G01B11/18 , G01L1/246 , G01M5/0091 , G01M11/083 , G01M11/085 , G02B6/02076 , G02B6/022 , G02B2006/12138
摘要： A high-durability and long-scale-distance fiber grating sensor and a manufacturing method therefor, which relate to the technical field of fiber grating sensors. A fiber grating is disposed on the middle segment of a commercial optical fiber. A bushing, a woven fiber jacket layer, and a packaging structure are disposed on the periphery of the commercial optical fiber. The commercial optical fiber and the bushing therebetween are fixed by using fixing points in the bushing. Anchoring segments are disposed between the fixing points in the bushing and the woven fiber jacket layer. Two ends of the commercial optical fiber are sequentially connected to optical fibers on the anchoring segments and connecting optical fibers. Tail ends of the connecting optical fibers are connected to a transmission cable by using connecting flanges. By using the apparatus and the manufacturing method, the applicability and the durability of application of the fiber grating sensor in the civil traffic engineering field are improved, thereby providing a stable and reliable apparatus for long-time detection and sound monitoring of large engineering structures in the civil traffic engineering field.
-
公开(公告)号：US09766281B2
公开(公告)日：2017-09-19
申请号：US14629035
申请日：2015-02-23
申请人： Sercel
发明人： Isabelle Sellin
CPC分类号： G01R31/021 , G01M11/083 , G01R15/24 , G01R31/083 , G01V1/18 , G01V1/201 , G01V1/38
摘要： It is proposed a method for monitoring an electrical power supply line comprised in a seismic cable and extending along the seismic cable. The seismic cable includes: a plurality of seismic sensors arranged along the seismic cable, a plurality of controllers arranged along the seismic cable, and an optical transmission line extending along the seismic cable for carrying data signals from or towards the controllers. The electrical power supply line supplies at least one pair of master and slave controllers. The master controller of a given pair of master and slave controllers performs a step of monitoring a portion of the electrical power supply line between the master and slave controllers, by using an optical loop established on a portion of the optical transmission line between the master and slave controllers, and starting from the master controller and passing through the slave controller.
-
公开(公告)号：US09347850B2
公开(公告)日：2016-05-24
申请号：US13469450
申请日：2012-05-11
CPC分类号： G01M5/0016 , F03D17/00 , F05B2270/331 , G01M5/0041 , G01M5/0075 , G01M5/0091 , G01M11/083 , Y02E10/722 , Y10T29/49826
摘要： Testing method for determining the distribution of a physical property along a wind turbine blade comprising the following steps: a) installing inside the blade a first optical fiber cable (13) along the leading and trailing edges and a second and third centered optical fiber cables (14, 15) at both sides of the blade (9), leaving in them a free end; b) applying one load to the blade (9) in a test bench (10) placed at the blade factory; c) obtaining the strain distribution produced by said load along the blade (9) using a suitable external equipment connected to said free end for measuring the strain using Rayleigh scattered light; d) determining the distribution of said physical property from said strain distribution; e) comparing the distribution of said physical property with its design distribution. The invention also comprises a method of installation of said cables.
摘要翻译： 用于确定沿着风力涡轮机叶片的物理特性分布的测试方法，包括以下步骤：a）沿着前缘和后缘安装刀片内的第一光缆（13），以及第二和第三居中的光纤电缆 在叶片（9）的两侧，在其中留下自由端; b）在放置在叶片工厂的试验台（10）中向叶片（9）施加一个载荷; c）使用连接到所述自由端的合适的外部设备获得由所述负载沿着所述叶片（9）产生的应变分布，以使用瑞利散射光来测量所述应变; d）从所述应变分布确定所述物理性质的分布; e）将所述物理性质的分布与其设计分布进行比较。 本发明还包括一种安装所述电缆的方法。
-
公开(公告)号：US09316571B2
公开(公告)日：2016-04-19
申请号：US14427087
申请日：2013-09-10
发明人： Mathias Müller , Rolf Wojtech , Thorbjörn Buck
CPC分类号： G01N3/20 , F03D7/0296 , F03D17/00 , F05B2260/80 , F05B2260/83 , F05B2270/332 , F05B2270/334 , F05B2270/807 , F05B2270/808 , F05B2270/821 , G01M5/0016 , G01M5/0041 , G01M7/025 , G01M11/083 , G01M15/14 , G01P15/093 , Y02E10/722
摘要： A method for state monitoring of a rotor blade of a wind turbine is described. The method comprises: measuring an acceleration of the rotor blade with a first signal, wherein the acceleration is measured at a first position at a predetermined distance from the rotor blade root in at least one direction comprising a first directional component orthogonal to the axis of the rotor blade, measuring a strain of the rotor blade with a second signal, wherein the strain is measured at a second position disposed in the area of the first position to the rotor blade root, determining a first positional change at the first position on the basis of the acceleration, determining a first value corresponding to the rotor blade stiffness or to the rotor blade elasticity by means of calculation on the basis of the first positional change and the strain, and determining the rotor blade state from the first value.
摘要翻译： 描述了一种用于状态监测风力涡轮机转子叶片的方法。 该方法包括：利用第一信号测量转子叶片的加速度，其中在至少一个方向上距离转子叶片根部预定距离的第一位置处测量加速度，包括与第一信号的轴线正交的第一方向分量 转子叶片，用第二信号测量转子叶片的应变，其中，在设置在与转子叶片根部的第一位置的区域中的第二位置处测量应变，基于第一位置确定第一位置变化 通过基于第一位置变化和应变的计算确定对应于转子叶片刚度或转子叶片弹性的第一值，以及根据第一值确定转子叶片状态。
-
公开(公告)号：US20160025563A1
公开(公告)日：2016-01-28
申请号：US14808896
申请日：2015-07-24
发明人： Eric A. Burgett
CPC分类号： G01J3/0218 , G01J3/12 , G01J3/2803 , G01J5/041 , G01J5/0862 , G01J5/0887 , G01J5/602 , G01J2003/1213 , G01L1/246 , G01L1/247 , G01M11/08 , G01M11/083
摘要： The system may include a photonic optical sensor including a photonic crystal and an incident light source arranged so as to project light onto the photonic optical sensor, and such that the photonic optical sensor returns a portion of the light projected onto the photonic optical sensor as returned light. The system may further include a detector positioned with respect to the photonic optical sensor so as to detect the returned light. The detector produces a data output based on the returned light. Additionally, a processing unit receives and processes the data output.
摘要翻译： 该系统可以包括光子光学传感器，其包括光子晶体和入射光源，其布置成将光投射到光子光学传感器上，并且使得光子光学传感器返回投射到光子光学传感器上的光的一部分，作为返回 光。 该系统还可以包括相对于光子光学传感器定位的检测器，以便检测返回的光。 检测器根据返回的光产生数据输出。 另外，处理单元接收并处理数据输出。
-
公开(公告)号：US20160011107A1
公开(公告)日：2016-01-14
申请号：US14865408
申请日：2015-09-25
申请人： PD-LD, Inc.
IPC分类号： G01N21/55
CPC分类号： G01N21/55 , G01D5/268 , G01D5/35367 , G01M5/0008 , G01M5/0033 , G01M11/083 , G01M11/085 , G01N17/04 , G01N2201/0886
摘要： A sensor for detecting material degradation may include an optical fiber and a housing through which the optical fiber extends. An end cap may be affixed to an end of the housing. Light provided through the optical fiber may be reflected off of the end cap back through the optical fiber. The end cap may be made of a material of interest, and may be situated in an environment wherein the material of interest is present. A light source may provide input light through the optical fiber. A portion of the input light may be reflected off of the end cap. A light receptor may receive the reflected light via the optical fiber. A processing unit may be adapted to compare a measured intensity of the reflected light to a threshold, and to initiate an alarm condition if the measured intensity is below the threshold.
摘要翻译： 用于检测材料劣化的传感器可以包括光纤和光纤延伸穿过的外壳。 端盖可以固定到壳体的端部。 通过光纤提供的光可以通过光纤从端帽反射离开。 端盖可以由感兴趣的材料制成，并且可以位于存在感兴趣的材料的环境中。 光源可以通过光纤提供输入光。 输入光的一部分可以从端盖反射出来。 光接收器可以经由光纤接收反射光。 处理单元可以适于将测得的反射光强度与阈值进行比较，并且如果测量的强度低于阈值则启动报警条件。
-
公开(公告)号：US09170149B2
公开(公告)日：2015-10-27
申请号：US13221280
申请日：2011-08-30
申请人： Arthur Hartog , Kamal Kader
发明人： Arthur Hartog , Kamal Kader
IPC分类号： G01J1/42 , G01H9/00 , G02F1/295 , G02B6/10 , G02B26/10 , E21B41/00 , G01D5/353 , G01L1/24 , G01M11/08
CPC分类号： G01H9/004 , E21B41/00 , G01D5/35361 , G01L1/242 , G01M11/083 , G02B6/10 , G02B26/103 , G02F1/295 , G02F1/2955
摘要： A fiber optic sensor system includes an optical source to output a first optical signal to launch into an optical fiber, and a coherent detector to mix a coherent Rayleigh backscatter signal generated by the optical fiber in response to the first optical signal with a second optical signal output by the optical source and to generate a mixed output signal. A phase detection and acquisition system determines a phase difference between first and second locations along the optical fiber based on phase information extracted from the mixed output signal and combines the phase information extracted from multiple acquisitions to detect strain on the optical fiber sensor.
摘要翻译： 光纤传感器系统包括用于输出第一光信号以发射到光纤中的光源，以及相干检测器，用于响应于第一光信号与第二光信号混合由光纤产生的相干瑞利反向散射信号 由光源输出并产生混合输出信号。 相位检测和采集系统基于从混合输出信号提取的相位信息确定沿着光纤的第一和第二位置之间的相位差，并且组合从多个获取中提取的相位信息以检测光纤传感器上的应变。
-
公开(公告)号：US20150260037A1
公开(公告)日：2015-09-17
申请号：US14436469
申请日：2013-08-20
CPC分类号： E21B49/003 , E21B17/006 , E21B47/0006 , E21B47/01 , E21B47/06 , E21B47/065 , E21B47/123 , G01L1/243 , G01L1/246 , G01M11/083 , G01V8/16
摘要： A drilling optimization collar for use proximate a drilling tool within a wellbore includes a fiber optic sensor filament that is sized and configured to fit within a groove formed within the drilling optimization collar. The drilling optimization collar may be a pipe segment that is sized and configured to be installed in a drill string proximate the drilling tool, and may have a plurality of sensor elements. All or a portion of the sensor elements may be formed by discrete segments of the sensor filament, and as such, the sensor filament includes sensor elements that are configured to sense a condition of the wellbore and a load on the drilling optimization collar.
摘要翻译： 用于靠近井筒内的钻具的钻孔优化套环包括纤维光学传感器细丝，其尺寸和构造适合于形成在钻孔优化套环内的凹槽内。 钻孔优化套环可以是管段，其尺寸和构造被安装在靠近钻孔工具的钻柱中，并且可以具有多个传感器元件。 传感器元件的全部或一部分可以由传感器灯丝的离散部分形成，因此传感器灯丝包括传感器元件，其被配置为感测井眼的状况和钻井优化轴环上的负载。
-
-
-
-
-
-
-
-
-
搜索结果
218 条记录 (耗时 0.018 秒)
