Electromagnetic pulse pick-up arrangement in a flow meter
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United States of America Patent
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Apr 1, 1986
Grant Date -
N/A
app pub date -
Jun 18, 1984
filing date -
Jun 18, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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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