基于希尔伯特变换的科氏质量流量计信号处理方法研究与实现

doi:10.3969/j.issn.1000-1158.2017.03.13

Abstract
Figure/Table
References (21)
Related Citation (15)

Download: PDF (925 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A set of digital signal processing algorithm is designed, which is composed of adaptive lattice filter and Hilbert transform algorithm according to the signal features of Coriolis mass flow sensors. The end effect of Hilbert transform is effectively suppressed by adding window function, and the measurement accuracy is improved. The whole algorithm is implemented in real time on a Coriolis mass flowmeter transmitter developed with TMS320F28335 chip. System tests and water flow calibrations are performed. The maximum relative error is smaller than ±0.1% with the range-ratio up to 10∶1. Experiments results show that the whole algorithm is feasible and effective.

Key words： metrology Coriolis mass flowmeter signal processing Hilbert transform adaptive lattice filter

Received: 10 October 2015 Published: 19 April 2017

PACS:

TB937

Corresponding Authors: Ke-Jun Xu E-mail: dsplab@hfut.edu.cn

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Jian-guo
	XU Ke-jun
	DONG Shuai
	LIU Zheng
	HOU Qi-li

Cite this article:

ZHANG Jian-guo,XU Ke-jun,DONG Shuai, et al. Study and Implementation of Signal Processing Method for Coriolis Mass Flowmeter Based on Hilbert Transform[J]. Acta Metrologica Sinica, 2017, 38(3): 309-314.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2017.03.13 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2017/V38/I3/309

［1］徐科军, 张翰. 一种科氏流量计的数字信号处理与驱动方法研究［J］.计量学报,2004, 25(4):339-343,379 .
［2］徐科军, 倪伟. 一种科里奥利质量流量计的信号处理方法［J］.计量学报,2001, 21(4):254-258.
［3］徐科军, 徐文福. 基于AFF和SGA的科氏质量流量计信号处理方法［J］. 计量学报,2007, 28(1):48-51.
［4］Dietmar S. Measurement and Operation Circuit of a Coriolistype Mass Flow Meter［P］:US6073495,1998-05-16.
［5］Manus P H. Digital Measurement［P］:US20020038186,2002-03-28.
［6］Henrot D. Multi-rate Digital Signal Processor for Vibrating Conduit Sensor Signals［P］:WO0101083,2001-01-04.
［7］Nam I C,Chong H C,Sang U L.Adaptive Line Enhancement by Using an IIR Lattice Notch Filter［J］.Signal Processing,1989,37(4): 585-589.
［8］Paul R. Coriolis Mass Flow Ｒate Meter Having a Substantially Increased Noise Immunity［P］:US4934196,1990-06-28.
［9］Freeman B. Digital Phase Locked Loop Signal Prcessing for Coriolis Mass Flow Meter［P］: US5804741,1998-09-08.
［10］Shen T S, Tu Y Q, Zhang H T.A Novel Method for CMF Signal Processing Based on the Revised Sliding Recursive DTFT Algorithm［C］//24th Chinese Control and Decision Conference,2012: 3311-3316.
［11］林伟,蔡选宪.基于格型陷波器和 Hilbert 变换的科里奥利质量流量计信号处理方法［J］. 电子器件, 2014, 37(1): 63-66.
［12］刘维来,赵璐,王克逸,等.基于希尔伯特变换的科氏流量计信号处理［J］. 计量学报, 2013, 35(5): 446-451.
［13］Yang H Y,Tu Y Q, Zhang H T.A Hilbert Transform Based Method for Dynamic Phase Difference Measurement［J］. Control & Decision Conference,2012,12(1):4141-4144.
［14］YI P,Tu Y Q, XIE M,et al A. Analysis of Phase Difference Tracking Methods for Signal of Coriolis Mass Flowmeter［C］//10th World Congress on Intelligent Control and Automation,2012,4368-4373.
［15］杨辉跃, 涂亚庆, 张海涛. 基于 hilbert 变换的相位差测量法分析及改进［J］.四川兵工学报, 2011, 32(1 ) : 107-109,134.
［16］杨建文,贾民平.希尔伯特-黄谱的端点效应分析及处理方法研究［J］.振动工程学报,2006,19(2) : 283-288.
［17］孟宗,季艳,谷伟明,等. 基于支持向量机和窗函数的DEMD端点效应抑制方法［J］. 计量学报, 2016, 37(2): 180-184.
［18］Nam I C, Sang U L. Tracking analysis of an adaptive lattice notch filter［ J］. IEEE Transactions on Circuits and Systems, 1995,42( 3 ): 186-195.
［19］Nam I C, Sang U L. On the adaptive lattice notch filter for the detection of sinusoids［J］. IEEE Transactions on Circuits and Systems, 1993, 40(7): 405-416
［20］朱永强, 徐科军, 李叶,等. 基于DSP的数字式科里奥利质量流量变送器硬件设计［C］//PCC2009—第20届中国过程控制会议论文集. 2009.
［21］侯其立, 徐科军, 李叶,等. 基于 TM S320F28335的高精度科氏质量流量变送器研制［J］.仪器仪表学报,2010,31(12):2788-2795.