MOU Ze-long, TU Ya-qing, CHEN Peng, et al. Design and implementation of secondary meter of small flow Coriolis mass flowmeter based on DSP[J]. 2018, (8): 109-111+119.
MOU Ze-long, TU Ya-qing, CHEN Peng, et al. Design and implementation of secondary meter of small flow Coriolis mass flowmeter based on DSP[J]. 2018, (8): 109-111+119. DOI: 10.13873/j.1000-9787(2018)08-0109-03.
In order to improve the measurement precision of the secondary meter of Coriolis mass flowmeter
a secondary meter based on digital signal processor( DSP) is designed from the aspect of hardware and software
and frequency estimation and phase difference estimation algorithm embedded in DSP based on phase frequency matching are expounded. Simulated electric signal measurements and small flow measurement experiments are conducted. Results show that the secondary meter has high measurement accuracy.