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    LEVEL MEASUREMENTS IN METALLURGICAL VESSELS
    1.
    发明公开
    LEVEL MEASUREMENTS IN METALLURGICAL VESSELS 有权
    LEVEL三围为冶金容器

    公开(公告)号：EP2756271A1

    公开(公告)日：2014-07-23

    申请号：EP12832597.4

    申请日：2012-09-11

    申请人： AGELLIS Group AB

    发明人： WILHELMSSON, Tomas

    IPC分类号： G01F23/26 ,  B22D2/00 ,  F27D21/00

    CPC分类号： G01F23/284 ,  B22D2/003 ,  B22D46/00 ,  F27D21/0028 ,  G01F23/26

    摘要： The vertical filling level of electrically conductive material in a cavity (3) of a metallurgical vessel is measured by a system comprising a transmitting conductor (5) for generating an electromagnetic field when connected to an alternating power source, and a receiving conductor (6) which is arranged to sense the electromagnetic field for generation of an output signal. The transmitting and receiving conductors (5, 6) are arranged inside a metal casing of the vessel to co-extend with a mutual spacing to define a spacing area (7) that faces the cavity (3) and extends along the periphery of the cavity (3) in an essentially closed loop. The mutual spacing is selected such that changes in the output signal is dominated by changes to the electromagnetic field caused by local changes in the amount of the conductive material adjacent to the spacing area (7). At least part of the spacing area (7) defines a vertical measurement region in which the spacing area (7) is slanted along the periphery so as to diverge from the horizontal and vertical directions of the vessel. Thereby, the spacing area (7) may be adapted to any shape of the cavity (3) so as to design the system with any desired transfer function, e.g. linear without turning points outside the extent of the vertical measurement region.