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专利名称：Fluid flow detectors发明人：Murray F. Feller申请号：US07/119299申请日：19871106公开号：US040499A公开日：19900102
摘要：The disclosed orbital ball flow detectors have an exposed ball- sensingelectrode near or along the path of the orbiting ball, and a return electrode. The ball'scross-section is much larger than the sensing electrode, which is closely over-shadowedby the ball as it orbits past the electrode. Unusually large signals are provided when theball is of insulation and the flow to be monitored exhibits some electrical conductivity.Where the ball orbits along a conductive track and is of metal, it acts as a switch whenoribiting past the sensing electrode.
申请人：MODEL SCREW PRODUCTS, INC.
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