摘要 |
In a circuit arrangement for deriving the measured variable from the signals (S1 to S2) of at least two sensors (23, 24) of a flow meter, which flow meter comprises one or several parallel fluid lines (20, 21) and means (22) for exciting oscillations of a predetermined fundamental frequency ( omega ) in the fluid lines (2), the sensors (23, 24) detect the oscillations and the sensor signals (S1 to S2) are supplied by way of a respective A-D converter (36; 37) to a digital processing unit (P) having a computation circuit (46), in which their phase difference ( phi ) is determined as a measure of the flow.
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申请人 |
DANFOSS A/S;HANSEN, HENNING, MAX;VOSS, FRANDS, WULFF;MONDRUP, NIELS, PER;WESTERMANN, KARSTEN;MOOS, HANS, JOERGEN;COLLIER, JAMES, D.;SEWELL, ROGER, F.;JANSEN, RICHARD-JAN, E. |
发明人 |
HANSEN, HENNING, MAX;VOSS, FRANDS, WULFF;MONDRUP, NIELS, PER;WESTERMANN, KARSTEN;MOOS, HANS, JOERGEN;COLLIER, JAMES, D.;SEWELL, ROGER, F.;JANSEN, RICHARD-JAN, E. |