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    • 20. 发明授权
    • Liquid level meter
    • 液位计
    • US06229476B1
    • 2001-05-08
    • US09447189
    • 1999-11-22
    • Wolfram LütkeJoachim NeuhausRalf ReimeltWerner Thoren
    • Wolfram LütkeJoachim NeuhausRalf ReimeltWerner Thoren
    • G01F23284
    • G01F23/68G01F23/284
    • A liquid level meter is provided for measuring a level of a liquid (1) in a container (3), which meter measures acceptably in the case of liquids with low dielectric constants, and the installation and maintenance of which are simple and cost effective. This meter comprises an electronic circuit (13), which generates electromagnetic signals in operation, a conductor (7), which projects into the container (3), along which a float (11, 11a, 11b, 11c, 11d, 11e) moves along with the level, which has at least one segment reflecting electromagnetic signals, an injector (9), which transmits the signals from the circuit (13) to the conductor (7), which conductor (7) leads the signals into the container (3) and leads out a signal reflected at the float (11) and a receiving and evaluating circuit (15), which receives the reflected signals, which determines a travel time of the signals and which ascertains the level from the travel time.
    • 提供了用于测量容器(3)中的液体(1)的液位的液位计,该仪表在具有低介电常数的液体的情况下可接受地测量,并且其安装和维护是简单和成本有效的。 该仪表包括一个产生电磁信号的电子电路(13),一个突出到容器(3)中的导体(7),浮子(11,11a,11b,11c,11d,11e)沿着该电子线移动 以及具有反射电磁信号的至少一个部分的电平,将来自电路(13)的信号传输到导体(7)的喷射器(9),该导体(7)将信号引导到容器( 引出在浮子(11)处反射的信号和接收和评估电路(15),接收和评估电路(15)接收反射信号,其确定信号的行进时间并确定行进时间的电平。