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    • 1. 发明授权
    • Electromagnetic pulse pick-up arrangement in a flow meter
    • 流量计中的电磁脉冲拾取装置
    • US4579008A
    • 1986-04-01
    • US623135
    • 1984-06-18
    • Jurgen BohmWalter Jerger
    • Jurgen BohmWalter Jerger
    • G01F3/06G01F15/06G01P3/481G01P3/10
    • G01F3/06G01F15/06G01P3/4815
    • An electromagnetic pulse pick-up unit, particularly for use in flow meters having small nominal width, comprises a pair of magnets arranged at opposite locations and with opposite polarity in a measuring gear of the flow meter. Concentrically arranged with the axis of rotation of the gear, there is provided a sensing unit assembled of a central pick-up cylinder, a sensing coil arranged around the portion of the cylinder facing the magnet, and a plurality of Wiegand wires distributed side by side in axial direction on the cylindrical outer surface of the pick-up cylinder in close proximity to the sensing coil. A pole ring of magnetically conductive material short circuits the ends of the Wiegand wires remote from the magnets.
    • 特别是用于具有小标称宽度的流量计中的电磁脉冲拾取单元包括在流量计的测量齿轮中布置在相对位置处并具有相反极性的一对磁体。 设置有与齿轮的旋转轴线集中布置的感测单元,其组装有中央拾取筒,感测线圈,其布置在面对磁体的圆筒部分周围,并且多个Wiegand线并排分布 在轴向方向上靠近传感线圈的拾取筒的圆柱形外表面上。 导磁材料的磁极环将远离磁体的韦根线的端部短路。