发明名称 Electro-magnetic flow transducer with insulating scroll
摘要 An electro-magnetic transducer interacts with a fluid in a tube and serves as either a flow sensor or as a pump. One or more electro-magnet(s) provide a magnetic flux transverse to a selected portion of the tube. The transducer has an electrically insulating sheet scrolled about an axis parallel to or coincident with that of the portion of the tube and extending from an axial streamlined body to an inner wall of the tube. One or more pair of electrodes are attached to the scroll so as to define a spiral electrical path between the two electrodes of the pair. These electrodes are connected to a voltage measurement circuit if the transducer is configured as a flow sensor or to a source of electric power if the transducer is configured as a pump. In addition, a flow commencement sensor is combined with the electro-magnetic flow sensor to provide a power-saving flow metering arrangement.
申请公布号 US6722207(B1) 申请公布日期 2004.04.20
申请号 US20020100453 申请日期 2002.03.19
申请人 FELLER MURRAY F. 发明人 FELLER MURRAY F.
分类号 G01F1/58;G01F1/60;(IPC1-7):G01F1/58 主分类号 G01F1/58
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