A Novel Digital Coriolis Mass Flowmeter

A novel digital Coriolis mass flowmeter (CMF) system is designed. The whole output signals of the flow sensor are acquired by the high performance and precision parallel A/D system and output signals are analyzed by the digital signal processor because of the powerful operation capability. The signals are filtered by finite impulse response (FIR) band pass filter. The new signal processing method is designed for calculating the frequency and the phase difference of the two signals. Moreover the temperature compensation model of the density and the mass flow are presented. The experimental results show that the precision and the offset of the system are improved, and the scheme of system realization is of actual significance.