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1. 发明授权

US09163958B2 Distributed sensing employing stimulated Brillouin scattering in optical fibers 有权
标题翻译：在光纤中使用受激布里渊散射的分布式感测
公开(公告)号：US09163958B2
公开(公告)日：2015-10-20
申请号：US14118538
申请日：2012-05-17
申请人： Avinoam Zadok , Yair Antman , Luc Thevenaz
发明人： Avinoam Zadok , Yair Antman , Luc Thevenaz
IPC分类号： G01J1/04 , G01D5/26 , H04B10/071 , G01D5/353 , G01N21/88
CPC分类号： G01D5/268 , G01D5/35348 , G01N21/88 , H04B10/071
摘要： Disclosed are methods and devices for distributed sensing of a measurable parameter employing stimulated Brillouin scattering in an optical fiber. A frequency-modulated or phase-modulated light wave is transmitted into the optical fiber. A scattered light wave in the optical fiber is monitored for sensing a measurable parameter. In some embodiments, the calculating step may include calculating a distance of a sensed location along the optical fiber using the monitored time of arrival.
摘要翻译：公开了用于在光纤中采用受激布里渊散射的可测量参数的分布式感测的方法和装置。调频或相位调制的光波被传输到光纤中。监测光纤中的散射光波，以感测可测量的参数。在一些实施例中，计算步骤可以包括使用所监视的到达时间来计算沿着光纤的感测位置的距离。

2. 发明申请

US20050207752A1 Physical quantity measuring method using brillouin optical fiber sensor 失效
标题翻译：使用布里渊光纤传感器的物理量测量方法
公开(公告)号：US20050207752A1
公开(公告)日：2005-09-22
申请号：US11062714
申请日：2005-02-22
申请人： Il Kwon , Dong Yoon , Jeong Lee , Sang Kim
发明人： Il Kwon , Dong Yoon , Jeong Lee , Sang Kim
IPC分类号： G01D5/353 , G01B9/02 , G01L1/24 , H04B10/08
CPC分类号： G01B11/18 , G01D5/35348 , G01K11/32 , G01K2011/322 , G01K2213/00 , G01L1/242 , G01M11/085
摘要： Provided is a physical quantity measuring method using a Brillouin optical fiber sensor. An optical fiber is set on a structure and a pair of pulse lights having different pulse widths is selected. The pulse lights are sequentially transmitted through the optical fiber to obtain back scattering lights and Brillouin gain spectra. The Brillouin gain spectra are compared to each other to calculate a normalized spectrum and a Brillouin frequency is acquired based on the normalized spectrum. The Brillouin frequency is multiplied by a conversion factor of a corresponding physical quantity of the structure to obtain the physical quantity. Accordingly, a portion of the optical fiber from which a sensing signal can be acquired is shortened to improve spatial resolution.
摘要翻译：提供了使用布里渊光纤传感器的物理量测量方法。将光纤设置在结构上，并选择具有不同脉冲宽度的一对脉冲光。脉冲光依次通过光纤传输，以获得反向散射光和布里渊增益光谱。将布里渊增益谱相互比较以计算归一化光谱，并基于归一化光谱获取布里渊频率。将布里渊频率乘以该结构的相应物理量的转换因子以获得物理量。因此，能够获取感测信号的光纤的一部分被缩短以提高空间分辨率。

3. 发明授权

US06237421B1 Apparatus for measuring a characteristic of an object using an optical fiber and light pulses 失效
标题翻译：用于使用光纤和光脉冲测量物体的特性的装置
公开(公告)号：US06237421B1
公开(公告)日：2001-05-29
申请号：US09335265
申请日：1999-06-17
申请人： Xin zen Li , Shiro Takada , Masayuki Miyazaki
发明人： Xin zen Li , Shiro Takada , Masayuki Miyazaki
IPC分类号： G01L124
CPC分类号： G01L1/242 , G01D5/35348 , G01M11/39
摘要： A light intensity measurement unit can sample the light intensity of scattered light at time intervals of a certain length corresponding to two times the length of each of small equal length sections, into which a measurement area in an optical fiber is divided. A computation unit can then compute the strain and/or temperature of each of the small sections of the measurement area in the optical fiber, based on the light intensity of the scattered light measured by the light intensity measurement unit from the scattering gain coefficient of the scattered light associated with each of the small sections.
摘要翻译：光强测量单元可以以对应于光纤中的测量区域被划分的每个小等长部分的长度的两倍的一定长度的时间间隔采样散射光的光强度。计算单元可以根据由光强测量单元测量的散射光的光强度，根据光强度测量单元的散射增益系数计算光纤中测量区域的每个小部分的应变和/或温度与每个小部分相关联的散射光。

4. 发明授权

US5302025A Optical systems for sensing temperature and other physical parameters 失效
标题翻译：用于感测温度和其他物理参数的光学系统
公开(公告)号：US5302025A
公开(公告)日：1994-04-12
申请号：US654809
申请日：1991-02-13
申请人： Marcos Y. Kleinerman
发明人： Marcos Y. Kleinerman
IPC分类号： A61B17/00 , G01D5/353 , G01J5/08 , G01J5/52 , G01K11/32 , G06F3/033 , G06F3/041 , G06F3/042 , G02B6/22 , G01K11/16
CPC分类号： G06F3/041 , G01D5/35348 , G01D5/3538 , G01J5/08 , G01J5/0821 , G01J5/0896 , G01J5/52 , G01K11/32 , G01K11/3213 , G06F3/0414 , A61B2017/00084 , G06F2203/04109
摘要： Optical sensors for physical parameters use a parameter-dependent relative distribution of the intensity of interrogating light of wavelengths .lambda..sub.1 between two light-guiding regions of a light-guiding probe. The relative distribution can be determined by a plurality of means including the spatial separation of the lights carried by the two light-guiding regions, and/or the conversion of one of the lights into light of wavelengths .lambda..sub.2 different and easily separable from light of wavelength .lambda..sub.1. The sensors can be adapted to measure diverse physical parameters, including but not limited to temperature, and to measure infrared radiation by measuring its heating effect on the sensing probes.
摘要翻译：用于物理参数的光学传感器使用光导探针的两个光导区域之间的波长（λ）1的询问光的参数相关相对分布。相对分布可以通过包括由两个光导区域携带的光的空间分离的多个装置和/或将其中一个光转换成不同于并且容易与其分离的波长（λ）2的光波长（λ）1。传感器可以适应于测量不同的物理参数，包括但不限于温度，并通过测量其对传感探针的加热效应来测量红外辐射。

5. 发明授权

US4812013A Process for utilizing light radiation with the aid of fluorescent optical fibres and functional devices and apparatus using said process 失效
标题翻译：借助于荧光光纤和使用所述方法的功能装置和装置利用光辐射的方法
公开(公告)号：US4812013A
公开(公告)日：1989-03-14
申请号：US136773
申请日：1987-12-22
申请人： Claude Aurouet , Henry Blumenfeld , Michel Bourdinaud , Jean Calvet , Jean-Claude Cavan , Joao Meyer , Jean-Claude Thevenin
发明人： Claude Aurouet , Henry Blumenfeld , Michel Bourdinaud , Jean Calvet , Jean-Claude Cavan , Joao Meyer , Jean-Claude Thevenin
IPC分类号： F21V8/00 , F24S23/00 , G01D5/353 , G02B6/02 , G02B6/42 , G02B6/00 , G01T1/20 , G01F23/00
CPC分类号： G02B6/4298 , F24J2/067 , G01D5/35348 , G01D5/3538 , G02B6/0003 , G02B6/02 , Y02E10/40 , Y10S359/90
摘要： The process utilizes the fact that fluorescent optical fibres can be laterally excited by light radiation by supplying concentrated light signals to their ends.The invention proposes applying this process to producing indicating, control, logic function measurement and similar apparatus, as well as for producing solar collectors for the direct generation of electricity.
摘要翻译：该方法利用荧光光纤可以通过向其端部供应集中光信号而被光辐射侧向激发的事实。本发明提出将该方法应用于产生指示，控制，逻辑功能测量和类似装置，以及用于生产用于直接发电的太阳能收集器。

6. 发明授权

US09739645B2 Fibre optic distributed sensing 有权
公开(公告)号：US09739645B2
公开(公告)日：2017-08-22
申请号：US13509415
申请日：2010-11-11
申请人： David John Hill , Magnus McEwen-King
发明人： David John Hill , Magnus McEwen-King
IPC分类号： G02B6/00 , G02B6/10 , G01J1/04 , G01D5/353
CPC分类号： G01D5/35361 , G01D5/35348
摘要： A method of distributed fiber optic sensing is described in which an optical fiber (104) is interrogated with electromagnetic radiation; back-scattered radiation is detected; and the returns are processed to provide a measurement signal (310) for each of a plurality of longitudinal sensing portions of the optical fiber. The method comprises analyzing the measurement signals of a first subset of longitudinal sensing portions to provide a first zone (306a) having a first sensing function and analyzing the measurement signals of at least a second subset of longitudinal sensing portions to provide at least a second zone (306b) having a second, different, sensing function. The different sensing functions may include detecting different events of interest. In some embodiments the geometry of the fiber may provide different sensing zones (406a, 406b).

7. 发明申请

US20160025524A1 BRILLOUIN OPTICAL DISTRIBUTED SENSING DEVICE AND METHOD WITH IMPROVED TOLERANCE TO SENSOR FAILURE 有权
标题翻译： BRILLOUIN光学分布式感应装置及其传感器故障的改进方法
公开(公告)号：US20160025524A1
公开(公告)日：2016-01-28
申请号：US14775384
申请日：2013-03-18
申请人： OMNISENS SA
发明人： Marc NIKLES , Etienne ROCHAT , Fabien BRIFFOD , Jean-Charles MONTAVON , Chin SANGHOON
IPC分类号： G01D5/353
CPC分类号： G01D5/35364 , G01D5/35348 , G01K11/32 , G01L1/242
摘要： A Brillouin optical distributed sensing device and method includes a structure for generating an optical pulsed signal and an optical probe signal. Includes is a circulation component for directing the optical pulsed signal to a sensing optical fiber and for directing an optical measurement signal with Brillouin scattering information arising from the sensing optical fiber toward a detection apparatus. Also included is an optical routing component for configuring the device to allow generating: (i) according to a first configuration, an optical measurement signal with stimulated Brillouin scattering information resulting from the interaction of the optical pulsed signal, and an optical probe signal propagating in the sensing optical fiber in a direction opposite to the optical pulsed signal, or (ii) according to a second configuration, an optical measurement signal with spontaneous Brillouin scattering information resulting from the propagation of the optical pulsed signal in the sensing optical fiber.
摘要翻译：布里渊光分布式感测装置和方法包括用于产生光脉冲信号和光探针信号的结构。包括用于将光脉冲信号引导到感测光纤并用于将光学测量信号与从感测光纤产生的布里渊散射信息朝向检测装置引导的循环部件。还包括用于配置该设备以允许生成的光学路由部件：（i）根据第一配置，具有由光脉冲信号的相互作用产生的受激布里渊散射信息的光学测量信号和在所述感测光纤在与所述光脉冲信号相反的方向上，或者（ii）根据第二配置，具有由所述感测光纤中的所述光脉冲信号的传播产生的自发布里渊散射信息的光学测量信号。

8. 发明申请

US20120062875A1 SYSTEM FOR IMPROVING THE DYNAMIC RANGE AND REDUCING MEASUREMENT UNCERTAINTY IN FIBRE OPTIC DISTRIBUTED SENSORS AND FIBRE OPTIC DISTRIBUTED MEASUREMENT EQUIPMENT 有权
标题翻译：用于改进动态范围和减少光纤分布传感器和光纤分布式测量设备中的测量不确定度的系统
公开(公告)号：US20120062875A1
公开(公告)日：2012-03-15
申请号：US13321369
申请日：2010-05-20
申请人： Sonia Martín López , Juan Diego Ania Castañon , Pedro Corredera Guillén , Miguel González Herraez
发明人： Sonia Martín López , Juan Diego Ania Castañon , Pedro Corredera Guillén , Miguel González Herraez
IPC分类号： G01N21/17
CPC分类号： G01D5/353 , G01D5/35348 , H04B10/2916
摘要： The present disclosure is based on distributed amplification based on the Raman Effect, consisting of one or more pump lasers (5) at various wavelengths combined with a variable number of fibre optic reflectors (6). These elements induce in the fibre optic sensor (4) or measurement object the necessary conditions for the propagation of the sensor or measurement equipment signals in virtual transparency mode, improving the signal-to-noise ratio in the sensor and measurement equipment signal, improving the dynamic range and increasing the range of the sensor or measurement equipment by up to 250 km.
摘要翻译：本公开是基于基于拉曼效应的分布式放大，其由与可变数量的光纤反射器（6）组合的各种波长的一个或多个泵激光器（5）组成。这些元件在光纤传感器（4）或测量对象中引入传感器或测量设备信号在虚拟透明模式下传播的必要条件，提高传感器和测量设备信号中的信噪比，从而改善动态范围和传感器或测量设备的范围增加高达250公里。

9. 发明授权

US07356207B2 Method and system for adjusting the sensitivity of optical sensors 有权
标题翻译：调整光学传感器灵敏度的方法和系统
公开(公告)号：US07356207B2
公开(公告)日：2008-04-08
申请号：US11489822
申请日：2006-07-19
申请人： Steven J. Sanders
发明人： Steven J. Sanders
IPC分类号： G02B6/00
CPC分类号： G01K11/32 , G01D5/35348 , G01D5/35364 , G01M11/3109 , G01M11/319
摘要： A method and a system for adjusting the sensitivity of an optical sensor are provided. A first beam of light in an optical fiber is separated into first and second portions propagating therethrough at a first speed. A second beam of light is directed into the optical fiber to interact with the first beam of light such that the first and second portions propagate through the optical fiber at a second speed. The propagation speed in turn influences the sensitivity of the optical sensor.
摘要翻译：提供了一种用于调节光学传感器的灵敏度的方法和系统。光纤中的第一光束被分离成以第一速度传播通过的第一和第二部分。第二光束被引导到光纤中以与第一光束相互作用，使得第一和第二部分以第二速度传播通过光纤。传播速度又影响光学传感器的灵敏度。

10. 发明授权

US06965709B1 Fluorescent optical position sensor 有权
标题翻译：荧光光学位置传感器
公开(公告)号：US06965709B1
公开(公告)日：2005-11-15
申请号：US10437876
申请日：2003-05-14
申请人： Jonathan D. Weiss
发明人： Jonathan D. Weiss
IPC分类号： G01D5/26 , G01D5/353 , G01F23/292 , G01J1/58 , G02B6/00
CPC分类号： G01D5/268 , G01D5/35348 , G01D5/3538 , G01F23/292 , G01J1/58
摘要： A fluorescent optical position sensor and method of operation. A small excitation source side-pumps a localized region of fluorescence at an unknown position along a fluorescent waveguide. As the fluorescent light travels down the waveguide, the intensity of fluorescent light decreases due to absorption. By measuring with one (or two) photodetectors the attenuated intensity of fluorescent light emitted from one (or both) ends of the waveguide, the position of the excitation source relative to the waveguide can be determined by comparing the measured light intensity to a calibrated response curve or mathematical model. Alternatively, excitation light can be pumped into an end of the waveguide, which generates an exponentially-decaying continuous source of fluorescent light along the length of the waveguide. The position of a photodetector oriented to view the side of the waveguide can be uniquely determined by measuring the intensity of the fluorescent light emitted radially at that location.
摘要翻译：荧光光学位置传感器及其操作方法。小的激发源侧沿着荧光波导在未知位置泵浦局部荧光区域。随着荧光灯沿着波导向下传播，荧光的强度由于吸收而降低。通过用一个（或两个）光电检测器测量，从波导的一个（或两个）端发射的荧光的衰减强度，激发源相对于波导的位置可以通过将测量的光强度与校准的响应进行比较来确定曲线或数学模型。或者，激发光可以被泵入波导的一端，其沿着波导的长度产生指数衰减的连续的荧光源。通过测量在该位置处径向辐射的荧光的强度，可以唯一地确定取向于观察波导侧的光电探测器的位置。

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