1. School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, Anhui 230009, China
2. Engineering Technology Research Center of Industrial Automation, Anhui Province, Hefei, Anhui 230009, China
Abstract：Aiming at the problems of easy-to-stop vibration and slow start-up of analog drive flow tube, the characteristic simulation method is used to analyze the drive characteristics of classical analog drive, and two typical analog drive improvement methods are studied. An improved differential drive is proposed. Four kinds of analog drive implementation circuits are developed, and gas-liquid two-phase flow drive experiments and vibration experiments are carried out. The experimental results show that the differential drive significantly increases the driving energy; the driving signal of the new analog driving is more stable and the start-up is faster; Compared with the classical analog drive, the amplitude of drive signal and sensor signal of the improved differential drive are increased by 4.2 times and 3.8 times, the standard deviation of the drive signal amplitude is only 0.08, and the start-up time is reduced to 2.3s.
黄雅,徐科军,刘陈慈,刘文,乐静,徐浩然,张伦. 基于特性图分析的科氏质量流量计模拟驱动研究[J]. 计量学报, 2021, 42(2): 189-198.
HUANG Ya,XU Ke-jun,LIU Chen-ci,LIU Wen,YUE Jing,XU Hao-ran,ZHANG Lun. Research on Analog Drive of Coriolis Mass Flowmeter Based on Characteristic Graph Analysis. Acta Metrologica Sinica, 2021, 42(2): 189-198.
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2021, Vol. 42 
