| 摘要 |
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.
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