Coriolis mass flow rate meter having a substantially increased noise immunity

摘要: Apparatus and accompanying methods for use therein a Coriolis mass flow rate meter which is substantially immune to noise, more particularly, such that unaffected by noise occurs at any frequency different from fundamental the tube(s) in vibrate. Specifically, relies on measuring determining phase difference between real imaginary components of discrete fourier transform (DFT) both left right velocity sensor waveforms evaluated tubes The located, during an initialization operation, providing power spectrum, determined through DFT, one signals then selecting magnitude spectrum reaches maximum value. In addition, sampled readjusted response change signals, as transformed using order assure sampling always remains equal pre-defined integer multiple frequency. Furthermore, meter, numerical value change, also provides density indication noise.