APPARATUS AND METHOD FOR TRANSMITTING RADIATION TO A ROTATING COMPONENT

    公开(公告)号:US20240003678A1

    公开(公告)日:2024-01-04

    申请号:US17810071

    申请日:2022-06-30

    IPC分类号: G01B11/14 F01D21/00 G02B5/04

    摘要: An apparatus and method for radiation measurement are used to determine clearance of a rotating gas turbine component. The apparatus includes a probe body on a stationary component outward of the rotating component and a pair of sensor assemblies coupled to the probe body. Each sensor assembly includes a plurality of prisms coupled to the probe body Each prism of the plurality of prisms has a distinct angular orientation to direct radiation from the focusing lens to the rotating component surface off-axis with respect to an axis of the respective radiation source of the pair of radiation sources and with less directional variation than radiation from the respective radiation source.

    METHODS AND SYSTEMS FOR MONITORING ROTOR BLADES IN TURBINE ENGINES

    公开(公告)号:US20200166431A1

    公开(公告)日:2020-05-28

    申请号:US16200834

    申请日:2018-11-27

    摘要: A method for determining an arrival-time of a rotor blade that includes attaching an RF reader to a stationary surface and an RF tag to the rotor blade. Strength-of-signal data points are collected via an RF monitoring process that includes: emitting an RF signal from the RF reader; receiving the RF signal at the RF tag and emitting a return RF signal by the RF tag in response thereto; receiving the return RF signal at the RF reader; measuring a signal strength of the return RF signal as received by the RF reader; and determining the strength-of-signal data point as being equal to the measured signal strength. The RF monitoring process is repeated until multiple strength-of-signal data points are collected. A maximum strength-of-signal is determined from the multiple strength-of-signal data points, and the arrival-time for the rotor blade is determined as being a time that corresponds to the maximum strength-of-signal.

    SYSTEM AND METHOD FOR TRANSMITTING SENSOR DATA FROM A ROTATING COMPONENT OF A TURBOMACHINE
    5.
    发明申请
    SYSTEM AND METHOD FOR TRANSMITTING SENSOR DATA FROM A ROTATING COMPONENT OF A TURBOMACHINE 有权
    用于从涡轮发动机的旋转部件传输传感器数据的系统和方法

    公开(公告)号:US20160210845A1

    公开(公告)日:2016-07-21

    申请号:US14599587

    申请日:2015-01-19

    IPC分类号: G08C17/02 F01D25/00

    摘要: A system for transmitting data from a rotating component of a turbomachine includes a plurality of thermal sensors coupled to corresponding rotatable components within the turbomachine where each thermal sensor generates a discrete analogue signal indicative of temperature. A plurality of transmitter assemblies is coupled to an end of a rotor shaft of the turbomachine. The plurality of transmitter assemblies comprises a first transmitter assembly and a second transmitter assembly. The first transmitter assembly is configured to receive the discrete analogue signals from the plurality of thermal sensors, multiplex the plurality of discrete analogue signals into a single amplifier and an analogue-to-digital converter to generate a single stream of digital data therefrom. The system also includes a slip ring assembly having a plurality of conductive rings where at least one of the conductive rings defines a digital signal path between the first transmitter assembly and a data acquisition system.

    摘要翻译: 用于从涡轮机的旋转部件传送数据的系统包括耦合到涡轮机内的相应可旋转部件的多个热传感器,其中每个热传感器产生指示温度的离散模拟信号。 多个发射器组件联接到涡轮机的转子轴的端部。 多个发射器组件包括第一发射器组件和第二发射器组件。 第一发射器组件被配置为从多个热传感器接收离散模拟信号,将多个离散模拟信号复用到单个放大器和模数转换器中以从其产生单个数字数据流。 该系统还包括具有多个导电环的滑环组件,其中至少一个导电环在第一发射器组件和数据采集系统之间限定数字信号路径。

    Methods and systems for monitoring rotor blades in turbine engines

    公开(公告)号:US10908049B2

    公开(公告)日:2021-02-02

    申请号:US16200834

    申请日:2018-11-27

    摘要: A method for determining an arrival-time of a rotor blade that includes attaching an RF reader to a stationary surface and an RF tag to the rotor blade. Strength-of-signal data points are collected via an RF monitoring process that includes: emitting an RF signal from the RF reader; receiving the RF signal at the RF tag and emitting a return RF signal by the RF tag in response thereto; receiving the return RF signal at the RF reader; measuring a signal strength of the return RF signal as received by the RF reader; and determining the strength-of-signal data point as being equal to the measured signal strength. The RF monitoring process is repeated until multiple strength-of-signal data points are collected. A maximum strength-of-signal is determined from the multiple strength-of-signal data points, and the arrival-time for the rotor blade is determined as being a time that corresponds to the maximum strength-of-signal.

    Optical sensor for circumferential interior surface of turbomachine casing, and related method

    公开(公告)号:US10774680B1

    公开(公告)日:2020-09-15

    申请号:US16437934

    申请日:2019-06-11

    摘要: An optical sensor for a rotating blade stage of a turbomachine is disclosed. The optical sensor includes a housing to be mounted relative to a circumferential interior surface of a casing of the turbomachine. Optical fiber(s) are operatively coupled to the housing for communicating: an optical signal for sending toward the rotating blade stage and a return optical signal reflected by the rotating blade stage, through the casing. An optical signal redirecting element is configured to redirect the optical signal from optical fiber(s) inwardly toward the rotating blade stage relative to the casing, and redirect the return optical signal reflected by the rotating blade stage into the at least one optical fiber. Optical fiber(s) have a longitudinal shape configured to follow the circumferential interior surface of the casing.

    APPARATUS AND METHOD FOR DETECTING RADIATION DEFLECTED FROM A ROTATING COMPONENT

    公开(公告)号:US20240003679A1

    公开(公告)日:2024-01-04

    申请号:US17810073

    申请日:2022-06-30

    IPC分类号: G01B11/14 F01D21/00 G02B6/42

    摘要: An apparatus for detecting radiation deflected from a rotating component includes a probe body on a stationary component radially outward of the rotating component; and a pair of arrival time sensors coupled to the probe body. Each arrival time sensor includes a light pipe that receives radiation deflected from the rotating component and that reduces directional variation of the radiation. A detector is optically coupled to each respective light pipe. The detector is positioned to receive the radiation with reduced directional variation from the light pipe. A method of detecting radiation from the rotating component using the apparatus determines a clearance between the rotating component (e.g., a turbomachine blade) and a stationary component (e.g., a casing).

    Systems and methods to monitor a rotating component
    10.
    发明授权
    Systems and methods to monitor a rotating component 有权
    监控旋转部件的系统和方法

    公开(公告)号:US09476318B2

    公开(公告)日:2016-10-25

    申请号:US14016930

    申请日:2013-09-03

    摘要: A method is presented. The method includes selecting a first window of signals and a second window of signals from clearance signals representative of clearances between a rotating component and a stationary casing surrounding the rotating component, determining a first signed average power value corresponding to the first window of signals, and a second signed average power value corresponding to the second window of signals, determining a resultant value based upon the first signed average power value and the second signed average power value, and determining one or more defects or potential defects in the rotating component based upon the resultant value.

    摘要翻译: 提出了一种方法。 该方法包括从表示旋转部件和围绕旋转部件的固定壳体之间的间隙的间隙信号中选择信号的第一窗口和第二窗口信号,确定对应于第一信号窗口的第一带符号平均功率值,以及 对应于所述第二窗信号的第二有符号平均功率值,基于所述第一有符号平均功率值和所述第二带符号平均功率值确定合成值,以及基于所述第二有效平均功率值确定所述旋转分量中的一个或多个缺陷或潜在缺陷, 结果值。