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    Optical tracking of rotor blade motion
    2.
    发明授权
    Optical tracking of rotor blade motion 有权
    转子叶片运动的光学跟踪

    公开(公告)号：US09470793B2

    公开(公告)日：2016-10-18

    申请号：US13766126

    申请日：2013-02-13

    Applicant: Sikorsky Aircraft Corporation

    Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Seung Bum Kim ,  Austin Fang ,  Matthew James Wasilewski ,  Robert Mark Lex ,  Curtis S. James ,  Harvey A. Samuels ,  Alonso Guzman ,  David James Majko

    IPC: G01S17/42 ,  B64C27/00 ,  G01B11/16

    CPC classification number: G01S17/42 ,  B64C27/008 ,  G01B11/16

    Abstract: An optical blade tracking system for a rotary wing aircraft, the system including a light source generating at least one light beam, the light source coupled to a rotor blade of the rotary wing aircraft, wherein movement of the rotor blade is imparted to the light source; a two-dimensional position detector generating signals indicative of a position of the light beam along a first axis and a position of the light beam along a second axis and generating a signal indicative of an angular position of the light beam about a third axis; a processor receiving the signals, the processor determining at least one of lead-lag, flap and pitch of the rotor blade in response to the signals; and a polarizer filter positioned between the light source and the two dimensional position detector, the polarizer filter modulating intensity of the light beam onto the two-dimensional position detector.

    Abstract translation: 一种用于旋转飞行器的光学叶片跟踪系统，该系统包括产生至少一个光束的光源，该光源耦合到旋翼飞行器的转子叶片，其中转子叶片的运动被赋予光源 ; 二维位置检测器，其产生指示光束沿第一轴的位置的信号和沿着第二轴的光束的位置，并产生指示光束围绕第三轴线的角位置的信号; 接收信号的处理器，所述处理器响应于所述信号确定所述转子叶片的超前滞后，折翼和俯仰中的至少一个; 以及位于光源和二维位置检测器之间的偏振器滤光器，偏振器滤光器调制光束到二维位置检测器的强度。

    Optical Tracking Of Rotor Blade Motion
    3.
    发明申请
    Optical Tracking Of Rotor Blade Motion 有权
    转子叶片运动的光学跟踪

    公开(公告)号：US20140226153A1

    公开(公告)日：2014-08-14

    申请号：US13766126

    申请日：2013-02-13

    Applicant: Sikorsky Aircraft Corporation

    Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Seung Bum Kim ,  Austin Fang ,  Matthew James Wasilewski ,  Robert Mark Lex ,  Curtis S. James ,  Harvey A. Samuels ,  Alonso Guzman ,  David James Majko

    IPC: G01S17/42

    CPC classification number: G01S17/42 ,  B64C27/008 ,  G01B11/16

    Abstract: An optical blade tracking system for a rotary wing aircraft, the system including a light source generating at least one light beam, the light source coupled to a rotor blade of the rotary wing aircraft, wherein movement of the rotor blade is imparted to the light source; a two-dimensional position detector generating signals indicative of a position of the light beam along a first axis and a position of the light beam along a second axis and generating a signal indicative of an angular position of the light beam about a third axis; a processor receiving the signals, the processor determining at least one of lead-lag, flap and pitch of the rotor blade in response to the signals; and a polarizer filter positioned between the light source and the two dimensional position detector, the polarizer filter modulating intensity of the light beam onto the two-dimensional position detector.

    Abstract translation: 一种用于旋转飞行器的光学叶片跟踪系统，该系统包括产生至少一个光束的光源，该光源耦合到旋翼飞行器的转子叶片，其中转子叶片的运动被赋予光源 ; 二维位置检测器，其产生指示光束沿第一轴的位置的信号和沿着第二轴的光束的位置，并产生指示光束围绕第三轴线的角位置的信号; 接收信号的处理器，所述处理器响应于所述信号确定所述转子叶片的超前滞后，折翼和俯仰中的至少一个; 以及位于光源和二维位置检测器之间的偏振器滤光器，偏振器滤光器调制光束到二维位置检测器的强度。

    Self-powered multi-functional structural health monitoring sensor
    4.
    发明授权
    Self-powered multi-functional structural health monitoring sensor 有权

    公开(公告)号：US10386264B2

    公开(公告)日：2019-08-20

    申请号：US15549251

    申请日：2015-11-24

    Applicant: Sikorsky Aircraft Corporation

    Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Avinash Sarlashkar

    IPC: G01M5/00 ,  G01L1/26 ,  G01M7/00 ,  G07C5/08

    Abstract: A structural health monitoring module including a sensor attached to a surface of a structural member configured to convert a strain on the structural member to electric energy, a gate operationally connected to the sensor and configured to control distribution of the energy, an energy storage device operationally connected to the gate and configured to receive the energy from the sensor, a data collection device configured to receive the energy from the sensor and at least one of process and record data related to the received energy, and a data transmission device configured to wirelessly transmit data from the data collection device to an external receiver. The gate is configured to direct a portion of the energy to the storage device in a storage state and configured to direct a portion of the energy to the data collection device when in load monitoring or interrogation states.

    MULTIFUNCTIONAL PIEZOELECTRIC LOAD SENSOR ASSEMBLY
    8.
    发明申请
    MULTIFUNCTIONAL PIEZOELECTRIC LOAD SENSOR ASSEMBLY 审中-公开

    公开(公告)号：US20180217014A1

    公开(公告)日：2018-08-02

    申请号：US15747691

    申请日：2016-05-31

    Applicant: Sikorsky Aircraft Corporation

    Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Avinash Sarlashkar, Jr.

    IPC: G01L1/16 ,  G01M5/00 ,  H01L41/113

    CPC classification number: G01L1/162 ,  G01H11/08 ,  G01M5/0033 ,  G01M5/0083 ,  H01L41/1132

    Abstract: A piezoelectric sensor assembly for measuring a force quantity on a structure includes at least one piezoelectric sensor, each including an element and two electrodes each projecting outward from the element. An electronic processor of the assembly is configured to receive data from the sensor, wherein the data includes a voltage with a magnitude that is indicative of a dynamic load (i.e., amplitude modulation mode) placed upon the structure. The processor may be configured to interrogate the piezoelectric sensor for its resonant frequency change which is indicative of the load applied to the structure at low operation frequency and to which the piezoelectric sensor would not otherwise respond well. The dual mode operation of the piezoelectric sensor extends the frequency range of the strain measurement from the dynamic range to static or quasi-static range.

    SELF-POWERED MULTI-FUNCTIONAL STRUCTURAL HEALTH MONITORING SENSOR
    9.
    发明申请
    SELF-POWERED MULTI-FUNCTIONAL STRUCTURAL HEALTH MONITORING SENSOR 审中-公开

    公开(公告)号：US20180095001A1

    公开(公告)日：2018-04-05

    申请号：US15549251

    申请日：2015-11-24

    Applicant: Sikorsky Aircraft Corporation

    Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Avinash Sarlashkar

    IPC: G01M5/00 ,  G01L1/26

    CPC classification number: G01M5/005 ,  G01L1/26 ,  G01M5/0033 ,  G01M5/0058 ,  G01M5/0066 ,  G01M7/00 ,  G07C5/085

    Abstract: A structural health monitoring module including a sensor attached to a surface of a structural member configured to convert a strain on the structural member to electric energy, a gate operationally connected to the sensor and configured to control distribution of the energy, an energy storage device operationally connected to the gate and configured to receive the energy from the sensor, a data collection device configured to receive the energy from the sensor and at least one of process and record data related to the received energy, and a data transmission device configured to wirelessly transmit data from the data collection device to an external receiver. The gate is configured to direct a portion of the energy to the storage device in a storage state and configured to direct a portion of the energy to the data collection device when in load monitoring or interrogation states.

    Conformable Transducer With Self Position Sensing
    10.
    发明申请
    Conformable Transducer With Self Position Sensing 审中-公开
    具有自身位置感应功能的传感器

    公开(公告)号：US20150078136A1

    公开(公告)日：2015-03-19

    申请号：US14026248

    申请日：2013-09-13

    Applicant: Mitsubishi Heavy Industries, Ltd. ,  Sikorsky Aircraft Corporation

    Inventor： Fanping Sun ,  Zaffir A. Chaudhry ,  Masaaki Kurokawa

    IPC: H04R17/00

    CPC classification number: G01N29/262 ,  G01N29/223 ,  G01N2291/2694

    Abstract: Embodiments are directed to a diaphragm-based flexible array comprising a plurality of piezoelectric elements, wherein the array is configured to conform to a surface of a structure under evaluation and emit acoustic waves in two directions in sequence, a source configured to apply a voltage pulse to each element of the array, and a sensor configured to receive an acoustic pulse from each element of the array in response to application of the voltage pulse to each element of the array.

    Abstract translation: 实施例涉及一种包括多个压电元件的基于膜片的柔性阵列，其中该阵列被配置成符合正在评估的结构的表面并且沿着两个方向发射声波，源被配置为施加电压脉冲 并且响应于将电压脉冲施加到阵列的每个元件而被配置为从阵列的每个元件接收声学脉冲的传感器。

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