The dynamic response of Coriolis mass flow meters: Theory and applications

In recent years there has been growing interest on the dynamic response of flowmeters in general [1] and that of Coriolis massflow meters in particular. Research carried out at Brunel University (UK) has developed a good model of the dynamic response of the Coriolis flowtube [2], while workers at Oxford University (UK) have devised novel digital Coriolis transmitter technology with a good dynamic response [3]. Foxboro’s commercial version of the Oxford transmitter has worked well in a number of difficult industrial applications [4]. This paper outlines some of the factors influencing the dynamic response of Coriolis meters, based on a joint research project between Oxford and Brunel, funded by the UK Government. Illustrations are provided from an industrial application and lab trials with batch times as short as 31ms.