Method for measurement of filling level of a liqui

专利名称：Method for measurement of filling level of a

liquid

发明人：VAN DER POL, RONALD申请号：EP96113663.7申请日：19960826公开号：EP0762090A1公开日：19970312

专利附图：

摘要：The method is based on radar with a VCO for determining the radar frequencyusing a voltage source suitably controlled to modulate the radar frequencies accordingto the FMCW method. The frequency of the oscillator is measured regularly at least

during the frequency sweep. During the frequency sweep a non linear frequency

characteristic is corrected by an appropriate control system. Correction of the frequencycharacteristic of a frequency sweep can be based on the measured frequencies of theactual frequency sweep and the duration of the frequency sweep can be selected in aninterval inversely proportional to change with time of the level.

申请人：KROHNE MESSTECHNIK GMBH & CO. KG

地址：Ludwig-Krohne-Strasse 5 D-47058 Duisburg DE

国籍：DE

代理机构：Patentanwälte Gesthuysen, von Rohr, Weidener, Schüll, Häckel

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