科氏质量流量计数字驱动方法研究与实现

doi:10.3969/j.issn.1000-1158.2013.06.10

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摘要基于DDS和MDAC，研究科氏质量流量计数字驱动方法中的频率、相位、幅值跟踪。采用TMS320F28335芯片，研制科氏质量流量变送器，实现驱动方法。配以CMF025型号传感器进行了气液两相流实验，实验结果表明，研制的变送器在两相流下能够维持流量管的振动并完成流量测量。

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	侯其立
	徐科军
	方敏
	熊文军
	刘翠

关键词 ：计量学, 科氏质量流量计, 数字驱动, 两相流, TMS320F28335

Abstract：The digital driving method which consists of frequency, phase and amplitude tracking based on DDS and MDAC is studied. A digital Coriolis mass flow transmitter is developed with TMS320F28335 chip. The driving technology is realized in real time. The gas-liquid two-phase flow-rate experiments are performed through connecting the transmitter with a CMF025 type Coriolis mass flow sensor. The results show that the transmitter can maintain the vibration of the flow tube and realize the flow measurement in two-phase condition.

Key words： Metrology Coriolis mass flow meter Digital drive Twophase flow TMS320F28335

基金资助:中航工业产学研合作创新工程(CXY2011HFGD23)

通讯作者: 徐科军为通信作者。

作者简介: 侯其立（1987-）,安徽合肥人,合肥工业大学博士研究生。主要从事自动化仪表和数字信号处理技术研究。dsplab@hfut.edu.cn

引用本文:

侯其立,徐科军,方敏,熊文军,刘翠. 科氏质量流量计数字驱动方法研究与实现[J]. 计量学报, 2013, 34(6): 554-560.
HOU Qi-li,XU Ke-jun,FANG Min,XIONG Wen-jun,LIU Cui. Study and Implementation of Digital Drive Method for Coriolis Mass Flow Meter. Acta Metrologica Sinica, 2013, 34(6): 554-560.

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