Two-core optical fibers for distributed fiber sensors and systems
    91.
    发明授权
    Two-core optical fibers for distributed fiber sensors and systems 有权
    用于分布式光纤传感器和系统的双核光纤

    公开(公告)号:US09574911B2

    公开(公告)日:2017-02-21

    申请号:US13658991

    申请日:2012-10-24

    Abstract: A two-core optical fiber is provided for use in Brillouin distributed fiber sensor applications and systems. The two-core fiber includes a first and second core. Each core is configured to exhibit a Brillouin frequency shift greater than 30 Mhz relative to the other core. Further, each core possesses temperature and strain coefficients that differ from the other core. The cores can be configured to produce Brillouin frequency shift levels of at least 30 Mhz relative to one another. These differences in shift levels may be effected by adjustment of the material compositions, doping concentrations and/or refractive index profiles of each of the cores. These optical fibers may also be used in BOTDR- and BOTDA-based sensor systems and arrangements.

    Abstract translation: 提供两芯光纤用于布里渊分布式光纤传感器应用和系统。 双芯光纤包括第一和第二芯。 每个核心被配置为相对于另一个核心展现大于30Mhz的布里渊频移。 此外,每个核心具有不同于另一核心的温度和应变系数。 核心可以被配置为相对于彼此产生至少30Mhz的布里渊频移水平。 这些偏移水平的差异可以通过调整每个芯的材料组成,掺杂浓度和/或折射率分布来实现。 这些光纤也可用于基于BOTDR和BOTDA的传感器系统和布置。

    Apparatus for identifying layer number of an object in a container and system for automatically taking out an object
    92.
    发明授权
    Apparatus for identifying layer number of an object in a container and system for automatically taking out an object 有权
    用于识别容器中的物体的层号和用于自动取出物体的系统的装置

    公开(公告)号:US09481090B2

    公开(公告)日:2016-11-01

    申请号:US14360873

    申请日:2013-04-24

    Abstract: An apparatus (01) configured for identifying numbers for layers having objects thereon within a container (02), the objects being accommodated in the container and arranged in layers. the apparatus comprising: an optical fiber sensor (10) configured for detecting presence or absence of the objects from layers within a detecting range; a support frame (20) configured for carrying the optical fiber sensor (10); a guide rail (60) configured for defining a moving direction of the support frame (20); a motor (40) and driving mechanism (30) configured for driving the optical fiber sensor to move along the guide rail; and a controller (50) connected with the optical fiber sensor (10) and the motor (40), wherein the controller (50) is at least configured for obtaining the numbers for the layers having objects thereon according to a moving distance of the support frame (20), in the case that the presence of the objects is detected by the optical fiber sensor (10). In the case of a smaller spacing between the layers in the container (02), the apparatus (01) can accurately obtain the number for the layer in which an object locates, so that a robot arm can take out the object placed at this layer directly. The object is a display panel.

    Abstract translation: 一种被配置用于识别在容器(02)内具有物体的层的数量的装置(01),所述物体被容纳在容器中并且被布置成层。 该装置包括:光纤传感器(10),被配置为用于从检测范围内的层中检测物体的存在或不存在; 配置用于承载光纤传感器(10)的支撑框架(20); 导轨(60),其构造成限定所述支撑框架(20)的移动方向; 驱动所述光纤传感器沿着所述导轨移动的电动机(40)和驱动机构(30) 以及与所述光纤传感器(10)和所述电动机(40)连接的控制器(50),其中,所述控制器(50)至少构造成根据所述支架的移动距离来获得其上具有物体的层的数量 在由光纤传感器(10)检测到物体的存在的情况下,框架(20)。 在容器(02)中的层之间的间隔较小的情况下,装置(01)可以精确地获得物体所在层的数量,从而机器人手臂可以取出放置在该层 直。 对象是一个显示面板。

    Methods and optical interrogation system for monitoring structural health of a structure
    93.
    发明授权
    Methods and optical interrogation system for monitoring structural health of a structure 有权
    用于监测结构健康的方法和光学询问系统

    公开(公告)号:US09459513B2

    公开(公告)日:2016-10-04

    申请号:US14819532

    申请日:2015-08-06

    Abstract: Methods and an optical interrogation system for monitoring structural health of a structure are provided. The method includes generating an optical signal using an optical signal generator, and directing the optical signal towards at least one optical sensor located remotely from the optical signal generator. The optical sensor includes a photonic crystal wafer optically interacting with the optical signal and an environmental condition. The method also includes capturing, by an optical signal receiving apparatus, a reflected optical signal reflected from the at least one optical sensor, and analyzing the reflected optical signal to determine a change in the environmental condition.

    Abstract translation: 提供了一种用于监测结构健康状况的光学询问系统。 该方法包括使用光信号发生器产生光信号,并将光信号引导到远离光信号发生器的至少一个光传感器。 光学传感器包括与光学信号光学相互作用的光子晶体晶片和环境条件。 该方法还包括由光信号接收装置捕获从至少一个光学传感器反射的反射光信号,并分析反射光信号以确定环境条件的变化。

    Disturbance detection using a passively terminated fiber optic sensor
    95.
    发明授权
    Disturbance detection using a passively terminated fiber optic sensor 有权
    使用被动端接的光纤传感器进行故障检测

    公开(公告)号:US09400167B2

    公开(公告)日:2016-07-26

    申请号:US14482644

    申请日:2014-09-10

    Inventor: Edward Tapanes

    Abstract: A fiber-optic sensor can have a Michelson sensor portion and a Mach-Zehnder sensor portion. A first splitter-coupler can be configured to split incoming light between a first fiber portion and a second fiber portion. A first polarization-phase conjugation device can be configured to conjugate a polarization phase of incident light corresponding to the first fiber portion, and a second polarization-phase conjugation device can be configured to conjugate a polarization phase of incident light corresponding to the second fiber portion. Each of the first and second polarization-phase conjugation devices can be configured to reflect light toward a detector and through the respective first and second fiber portions. A coupler can be configured to join light in the first fiber portion with light in the second fiber portion, and a third fiber portion can be configured to receive light from the coupler and to illuminate a second detector.

    Abstract translation: 光纤传感器可以具有迈克尔逊传感器部分和马赫 - 曾德传感器部分。 第一分离器耦合器可以被配置为在第一光纤部分和第二光纤部分之间分离入射光。 第一偏振相位共轭装置可以被配置为将对应于第一光纤部分的入射光的偏振相位共轭,并且第二偏振相位共轭装置可以被配置为将对应于第二光纤部分的入射光的偏振相位共轭 。 第一和第二偏振相位共轭装置中的每一个可以被配置为将光朝向检测器反射并通过相应的第一和第二光纤部分。 耦合器可以被配置为将第一光纤部分中的光与第二光纤部分中的光结合,并且第三光纤部分可以被配置为从耦合器接收光并照亮第二检测器。

    OPTICAL METHOD AND SYSTEM FOR MEASURING AN ENVIRONMENTAL PARAMETER
    97.
    发明申请
    OPTICAL METHOD AND SYSTEM FOR MEASURING AN ENVIRONMENTAL PARAMETER 有权
    用于测量环境参数的光学方法和系统

    公开(公告)号:US20160139036A1

    公开(公告)日:2016-05-19

    申请号:US15005375

    申请日:2016-01-25

    Inventor: François BABIN

    Abstract: An optical system for sensing an environmental parameter, comprising: an optical pulse generator for generating an excitation pulse; a pulse splitter for splitting the excitation pulse into a sensing pulse and a reference pulse; a sensing arm for receiving the sensing pulse, the sensing arm comprising an emission sensor for sensing the environmental parameter, the optical emission sensor generating a first measurement pulse having a measurement wavelength; a reference arm for receiving the reference pulse, the reference arm comprising an emission artefact adapted to convert the reference pulse into a second measurement pulse having the measurement wavelength; a time delay line for delaying a relative propagation of the measurement pulses; a light detector for measuring an optical energy of the first and second measurement pulses; and an optical link for optically connecting the pulse generator to the pulse splitter, and the sensing and reference arms to the light detector.

    Abstract translation: 一种用于感测环境参数的光学系统,包括:用于产生激励脉冲的光脉冲发生器; 用于将激励脉冲分成感测脉冲和参考脉冲的脉冲分离器; 用于接收感测脉冲的感测臂,所述感测臂包括用于感测所述环境参数的发射传感器,所述光发射传感器产生具有测量波长的第一测量脉冲; 用于接收参考脉冲的参考臂,所述参考臂包括适于将所述参考脉冲转换成具有所述测量波长的第二测量脉冲的发射伪影; 用于延迟测量脉冲的相对传播的延时线; 用于测量第一和第二测量脉冲的光能的光检测器; 以及用于将脉冲发生器光学连接到脉冲分离器的光学链路,以及用于光检测器的感测和参考臂。

    OPTICAL METHOD AND SYSTEM FOR MEASURING AN ENVIRONMENTAL PARAMETER
    98.
    发明申请
    OPTICAL METHOD AND SYSTEM FOR MEASURING AN ENVIRONMENTAL PARAMETER 有权
    用于测量环境参数的光学方法和系统

    公开(公告)号:US20160033395A1

    公开(公告)日:2016-02-04

    申请号:US14449511

    申请日:2014-08-01

    Inventor: Francois Babin

    Abstract: An optical system for sensing an environmental parameter, comprising: a pulse generator for generating a first pulse having a first wavelength and a second pulse having a second wavelength; a pulse splitter for splitting each one of the first and second pulse into a sensing pulse and a reference pulse; a sensing arm for receiving the sensing pulses therefrom and comprising a spectro-ratiometric sensor; a reference arm for receiving the reference pulses; a time delay line for delaying a relative propagation of the sensing pulses and the reference pulses; a light detector for measuring an optical energy of the sensing pulse and the reference pulse, for the first and second wavelengths; and at least one optical link for optically connecting the pulse generator to the pulse splitter, and the sensing and reference arms to the light detector.

    Abstract translation: 一种用于感测环境参数的光学系统,包括:脉冲发生器,用于产生具有第一波长的第一脉冲和具有第二波长的第二脉冲; 用于将第一和第二脉冲中的每一个分成感测脉冲和参考脉冲的脉冲分离器; 用于从其接收感测脉冲并包括光谱比例传感器的感测臂; 用于接收参考脉冲的参考臂; 用于延迟感测脉冲和参考脉冲的相对传播的延时线; 光检测器,用于测量第一和第二波长的感测脉冲和参考脉冲的光能; 以及用于将脉冲发生器光学地连接到脉冲分离器的至少一个光学链路,以及用于光检测器的感测和参考臂。

    REFLECTIVE ELEMENT FOR FIBER OPTIC SENSOR
    99.
    发明申请
    REFLECTIVE ELEMENT FOR FIBER OPTIC SENSOR 有权
    光纤传感器的反射元件

    公开(公告)号:US20150346399A1

    公开(公告)日:2015-12-03

    申请号:US14670691

    申请日:2015-03-27

    Applicant: Qualitrol, LLC

    Abstract: A reflective element for directing an optical signal into a fiber optic sensor having an optical fiber includes a plane containing a sharply defined straight line that separates between a first area of low reflectivity and a second area of high reflectivity. The plane is disposed parallel to a free end surface of the optical fiber so that the free end surface intersects the line of the reflective element, whereby relative movement between the free end surface of the optical fiber and the line in response to a physical change sensed by the fiber optic sensor induces variations in an optical signal reflected by the reflective element through the optical fiber, which variations allow measurement of the physical change.

    Abstract translation: 用于将光信号引导到具有光纤的光纤传感器中的反射元件包括包含在第一低反射率区域和高反射率的第二区域之间分离的明确限定的直线的平面。 平面平行于光纤的自由端面设置,使得自由端表面与反射元件的线相交,从而响应于感测到的物理变化而在光纤的自由端表面与线之间的相对运动 光纤传感器通过光纤引起反射元件反射的光信号的变化,这些变化允许测量物理变化。

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