基于特性图分析的科氏质量流量计模拟驱动研究

doi:10.3969/j.issn.1000-1158.2021.02.10

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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.

Key words： metrology gas-liquid two-phase flow Coriolis mass flowmeter improved differential drive drive characteristic diagram analog drive

Received: 04 June 2019 Published: 18 February 2021

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TB937

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	Articles by authors
	HUANG Ya
	XU Ke-jun
	LIU Chen-ci
	LIU Wen
	YUE Jing
	XU Hao-ran
	ZHANG Lun

Cite this article:

HUANG Ya,XU Ke-jun,LIU Chen-ci, et al. Research on Analog Drive of Coriolis Mass Flowmeter Based on Characteristic Graph Analysis[J]. Acta Metrologica Sinica, 2021, 42(2): 189-198.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2021.02.10 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2021/V42/I2/189

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