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    LDV with Diffractive Optical Element for Transceiver Lens
    2.
    发明申请
    LDV with Diffractive Optical Element for Transceiver Lens 审中-公开
    用于收发镜的衍射光学元件的LDV

    公开(公告)号：US20130208256A1

    公开(公告)日：2013-08-15

    申请号：US13473107

    申请日：2012-05-16

    申请人： Priyavadan MAMIDIPUDI ,  Elizabeth A. Dakin ,  Philip L. Rogers ,  Daniel C. Dakin ,  Rupak Changkakoti ,  Lance Leclair

    发明人： Priyavadan MAMIDIPUDI ,  Elizabeth A. Dakin ,  Philip L. Rogers ,  Daniel C. Dakin ,  Rupak Changkakoti ,  Lance Leclair

    IPC分类号： G01C3/08 ,  G02B27/09

    CPC分类号： G01C3/08 ,  G01S7/4811 ,  G01S7/4815 ,  G01S7/4818 ,  G01S17/95 ,  G02B5/32 ,  G02B27/0927 ,  G02B27/0944 ,  Y02A90/19

    摘要： A transceiver device that includes one or more light sources configured to emit a light beam that includes one or more different wavelengths, and includes a diffractive optical element configured to initiate one or more wavelength specific responses from the light beam to form one or more transmission light beams and to direct the one or more transmission light beams substantially towards a target; and further includes one or more sensor devices configured to receive the one or more transmission light beams and one or more reception light beams that are reflected back from the target. The diffractive optical element (e.g., a holographic element) is used in either a monostatic, bistatic or multistatic design to reduce the required size and/or number of optical elements, lasers and receivers. The transceiver device may be used in a LIDAR system in order to measure air and wind parameters at multiple altitudes.

    摘要翻译： 一种收发器装置，其包括被配置为发射包括一个或多个不同波长的光束的一个或多个光源，并且包括衍射光学元件，所述衍射光学元件被配置为启动来自所述光束的一个或多个波长特定响应以形成一个或多个透射光 并且基本上朝向目标引导一个或多个透射光束; 并且还包括被配置为接收一个或多个发射光束的一个或多个传感器装置和从目标反射回的一个或多个接收光束。 衍射光学元件（例如，全息元件）用于单稳态，双稳态或多状态设计中以减少光学元件，激光器和接收器的所需尺寸和/或数量。 收发器装置可以用在激光雷达系统中，以便在多个高度测量空气和风力参数。

    Scanning Non-Scanning LIDAR
    3.
    发明申请
    Scanning Non-Scanning LIDAR 有权
    扫描非扫描激光雷达

    公开(公告)号：US20130044309A1

    公开(公告)日：2013-02-21

    申请号：US13396313

    申请日：2012-02-14

    申请人： Elizabeth A. DAKIN ,  Priyavadan MAMIDIPUDI ,  Philip L. ROGERS ,  Rupak CHANGKAKOTI ,  Daniel C. DAKIN

    发明人： Elizabeth A. DAKIN ,  Priyavadan MAMIDIPUDI ,  Philip L. ROGERS ,  Rupak CHANGKAKOTI ,  Daniel C. DAKIN

    IPC分类号： G01C3/08

    CPC分类号： G01S17/89 ,  G01S7/4814 ,  G01S7/4818 ,  G01S17/10

    摘要： An all fiber optic laser based scanning system for real time terrain mapping under degraded visual conditions is disclosed. A laser output is modulated to achieve a desired pulse width and pulse repetition frequency (PRF) and the modulated signal is amplified. The amplified optical signals are split into N channels that correspond to N elements of an optically phased array that steers light by modulating the phase of light entering and exiting the optical system. By applying a linear phase shift across the beam's wave front, the light propagating along the system's optical axis is steered to an off-axis angle. A real time map of an underlying terrain is accomplished by sweeping the N channel array across the terrain while collecting range information from each scan grid.

    摘要翻译： 公开了一种基于光纤激光的扫描系统，用于在恶化的视觉条件下的实时地形映射。 调制激光输出以实现期望的脉冲宽度和脉冲重复频率（PRF），并且调制信号被放大。 放大的光信号被分成N个通道，其对应于通过调制进入和离开光学系统的光的相位来引导光的光学相控阵列的N个元件。 通过在波束的波前施加线性相移，沿着系统的光轴传播的光被转向离轴角。 通过在每个扫描网格上收集范围信息的同时，跨越地形扫描N通道阵列来实现底层地形的实时图。

    High Power Laser Doppler Velocimeter With Multiple Amplification Stages
    4.
    发明申请
    High Power Laser Doppler Velocimeter With Multiple Amplification Stages 有权
    具有多个放大阶段的大功率激光多普勒测速仪

    公开(公告)号：US20130162976A1

    公开(公告)日：2013-06-27

    申请号：US13475536

    申请日：2012-05-18

    申请人： Elizabeth A. DAKIN ,  Priyavadan MAMIDIPUDI ,  Philip L. ROGERS ,  Chia-Chen CHANG ,  Rupak CHANGKOKOTI ,  Lance LECLAIR

    发明人： Elizabeth A. DAKIN ,  Priyavadan MAMIDIPUDI ,  Philip L. ROGERS ,  Chia-Chen CHANG ,  Rupak CHANGKOKOTI ,  Lance LECLAIR

    IPC分类号： G01P5/26

    CPC分类号： G01P5/26 ,  G01S7/4812 ,  G01S7/4818 ,  G01S7/4917 ,  G01S17/58 ,  G01S17/95 ,  Y02A90/19

    摘要： Systems and methods for laser based measurement of air parameters are disclosed. An example system includes a source of radiation, an amplification system with one or more power amplification stages, a transceiver, and an optical mixer. The source produces a plurality of beams, and the amplification system is configured to amplify the beams. The transceiver is configured to transmit the modulated beam to, and receive a scattered beam from a target region. The optical mixer is configured to determine a difference between the scattered beam and a reference beam, which is used to determine a Doppler shift therefrom. In certain embodiments, the amplification system includes a fiber preamplifier and one or more fiber power amplifiers stages.

    摘要翻译： 公开了用于激光测量空气参数的系统和方法。 示例性系统包括辐射源，具有一个或多个功率放大级的放大系统，收发器和光学混合器。 源产生多个光束，并且放大系统被配置为放大光束。 收发器被配置为将调制的波束发射到目标区域并且从目标区域接收散射光束。 光学混合器被配置为确定散射光束和参考光束之间的差异，其用于确定其中的多普勒频移。 在某些实施例中，放大系统包括光纤前置放大器和一个或多个光纤功率放大器级。

    System and Method of In Situ Wind Turbine Blade Monitoring
    5.
    发明申请
    System and Method of In Situ Wind Turbine Blade Monitoring 审中-公开
    原位风力发电机叶片监控系统与方法

    公开(公告)号：US20130003071A1

    公开(公告)日：2013-01-03

    申请号：US13174115

    申请日：2011-06-30

    申请人： Priyavadan MAMIDIPUDI ,  Elizabeth A. Dakin ,  Frederick C. Belen, JR. ,  Philip L. Rogers

    发明人： Priyavadan MAMIDIPUDI ,  Elizabeth A. Dakin ,  Frederick C. Belen, JR. ,  Philip L. Rogers

    IPC分类号： G01N21/55 ,  G01N21/88

    CPC分类号： F03D17/00 ,  F05B2270/32 ,  G01M5/0016 ,  G01M5/0091 ,  G01P5/26 ,  G01S7/4802 ,  G01S7/487 ,  G01S17/58 ,  G01S17/95 ,  Y02A90/19 ,  Y02E10/726

    摘要： Systems and methods are disclosed for monitoring parameters such as the material properties or structural integrity of a wind turbine blade on a wind turbine. An example method comprises detecting light reflected from a wind turbine blade, generating a value based on the detecting, comparing the value to a threshold value and determining a parameter of the wind turbine blade based on the comparing. A further embodiment comprises determining a wind velocity by detecting reflected light from a target area in front of the wind turbine blade. An example system comprises a detector configured to detect light reflecting from a turbine blade and to produce a value representative of the detected light. The system also comprises a comparator configured to compare the value to a threshold value and to determine a parameter of the turbine blade.

    摘要翻译： 公开了用于监测诸如风力涡轮机上的风力涡轮机叶片的材料特性或结构完整性的参数的系统和方法。 示例性方法包括检测从风力涡轮机叶片反射的光，基于检测产生值，将该值与阈值进行比较，并且基于该比较确定风力涡轮机叶片的参数。 另一实施例包括通过检测来自风力涡轮机叶片前方的目标区域的反射光来确定风速。 示例系统包括检测器，其被配置为检测从涡轮叶片反射的光并产生代表检测到的光的值。 该系统还包括比较器，其被配置为将该值与阈值进行比较并确定涡轮叶片的参数。