An Innovative Technology for Coriolis Metering under Entrained Gas Conditions
White Paper - Endress+Hauser
Coriolis mass flowmeters are usually only used for single-phase fluids since it has been found that their accuracy can be affected by two-phase flows, e.g. the existence of entrained gas in a liquid flow. It is now known that there are various sources of error, among which the significantly increased compressibility due to gas entrainment brings the most difficulty when Coriolis meters are used in the field. Endress+Hauser has developed a new Coriolis sensor together with an innovative technology, Multi-Frequency Technology (MFT), which can compensate the measurement errors introduced by the increased compressibility of an entrained gas flow. The new sensor provides a novel hardware platform so that a higher natural mode of the measuring tube can be reliably excited in addition to the basic working mode.
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