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    SOUND VELOCITY SENSOR FOR UNDERWATER USE AND METHOD FOR DETERMINING UNDERWATER SOUND VELOCITY
    7.
    发明公开
    SOUND VELOCITY SENSOR FOR UNDERWATER USE AND METHOD FOR DETERMINING UNDERWATER SOUND VELOCITY 审中-公开

    公开(公告)号：EP3390987A1

    公开(公告)日：2018-10-24

    申请号：EP17838026.7

    申请日：2017-03-02

    申请人： AML Oceanographic Ltd.

    发明人： BUELEY, Chris ,  OLENDER, Dustin ,  PAYNTER, Chris ,  CAMERON, Kyle

    IPC分类号： G01H5/00

    CPC分类号： G01H5/00 ,  G01F1/668 ,  G01S7/52006 ,  G01S15/588

    摘要： A sound velocity sensor for underwater use has an acoustic transmitter and receiver, a path length portion defining an acoustic path and positioned such that a generated acoustic signal propagates along the acoustic path from the acoustic transmitter to the receiver, a temperature sensor in direct contact with the path length portion, and a controller communicatively coupled to these components. The controller is configured to generate the acoustic signal using the acoustic transmitter, determine a transit time of the acoustic signal from the acoustic transmitter to the acoustic receiver, determine a temperature of the path length portion using the temperature sensor, and determine the velocity of the acoustic signal from the transit time and a length of the acoustic path. Determining the velocity includes compensating for a temperature-related change in the length of the acoustic path using the temperature of the path length portion.

    DERIVING CONTACT STRESS OR CONTACT LOAD USING ULTRASOUND DATA
    9.
    发明公开
    DERIVING CONTACT STRESS OR CONTACT LOAD USING ULTRASOUND DATA 审中-公开
    使用超声波数据推导接触应力或接触载荷

    公开(公告)号：EP3183544A2

    公开(公告)日：2017-06-28

    申请号：EP15744289.8

    申请日：2015-07-22

    申请人： The University Of Sheffield

    发明人： MILLS, Robin ,  DWYER-JOYCE, Robert ,  HUNTER, Andrew ,  CHEN, Wenqu

    IPC分类号： G01H5/00 ,  G01N29/07 ,  G01L1/25 ,  G01S15/88 ,  G01S15/10 ,  G01S7/54 ,  G01S11/06

    CPC分类号： G01S7/539 ,  G01H5/00 ,  G01L1/255 ,  G01N29/07 ,  G01N2291/011 ,  G01N2291/02827 ,  G01S7/54 ,  G01S11/06 ,  G01S11/14 ,  G01S15/10 ,  G01S15/87 ,  G01S15/88

    摘要： An analysis device 110 comprising an input to receive ultrasound data from an interface 127 between two elements 123 and 125 moving relative to each other or tribologically; ultrasound transducer 120 is mounted onto element 123. A processor determines time of flight data from the ultrasound data, the magnitude of the echo may be derived using a Fast Hilbert Transform and the envelope correlated with a reference signal. Contact stress and/or contact load is derived in the first element from time of flight data independent of phase shift. The greatest component of the ultrasound is perpendicular to the interface. In a second invention the stress may be derived from a change in speed of the ultrasound due to the acoustoelastic effect. The analysis device may be incorporated into a system for monitoring bearings, ball races, rolling element races or rolling elements in turbines, wind turbines, railed vehicles, vehicle tracks, metal rolling mills or hydro power generators.

    摘要翻译： 分析装置110包括用于接收来自两个元件123和125之间的界面127的相对于彼此或摩擦学移动的超声波数据的输入; 超声换能器120被安装到元件123上。处理器根据超声数据确定飞行时间数据，可以使用快速希尔伯特变换导出回波的幅度，并且该包络与参考信号相关。 接触应力和/或接触载荷在飞行时间数据的第一个元素中得出，与相移无关。 超声波的最大组成部分垂直于界面。 在第二个发明中，应力可以来源于由于声弹性效应引起的超声速度的变化。 分析装置可并入用于监测涡轮机中的轴承，球座，滚动体座圈或滚动体，风力涡轮机，有轨车辆，车辆轨道，金属轧机或水力发电机的系统中。