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    Electrode configuration for LIMCA
    2.
    发明公开
    Electrode configuration for LIMCA 有权
    ElektrodenkonfigurationfürLIMCA

    公开(公告)号：EP2894457A1

    公开(公告)日：2015-07-15

    申请号：EP15157157.7

    申请日：2005-02-25

    申请人： Novelis, Inc.

    发明人： Marcotte, Jacques ,  Slusarenko, Yuhil

    IPC分类号： G01N15/02 ,  G01N27/403 ,  G01N33/20

    CPC分类号： G01N27/403 ,  G01N15/02 ,  G01N15/12 ,  G01N33/206

    摘要： The present invention provides a method and apparatus for reducing electromagnetic noise pick up in a Liquid Metal Cleanliness Analyzer (LiMCA), used to detect and measure particles in molten metal. An first electrode inserted in the molten metal is electrically insulated from second and third electrodes, also inserted in the molten metal. Molten metal and particles pass between the first electrode and the second and third electrodes through a passage in the electrical insulation. The second and third electrodes have a configuration with respect to the first electrode sufficient to establish symmetrical current loops between the first electrode and the second and third electrodes when a current is supplied to the second and third electrodes. The current is supplied from an ultra-capacitor. Electromagnetic noise in the symmetrical current loops is detected and is added in opposition toreduce the amplitude of the electromagnetic noise.

    摘要翻译： 本发明提供一种用于减少用于检测和测量熔融金属中的颗粒的液体金属清洁度分析仪（LiMCA）中的电磁噪声拾取的方法和装置。 插入熔融金属中的第一电极与也插入熔融金属中的第二和第三电极电绝缘。 熔融金属和颗粒通过电绝缘体中的通道在第一电极和第二和第三电极之间通过。 当向第二和第三电极提供电流时，第二和第三电极相对于第一电极具有足以在第一电极和第二和第三电极之间建立对称电流回路的结构。 电流由超级电容器供电。 检测对称电流回路中的电磁噪声，并相反地增加电磁噪声的幅度。