NDLI: Detection of the vortex signal in vibration environment and signal processing based on EMD decompositions

Content Provider	IEEE Xplore Digital Library
Author	Hong-Jun Sun Jian Liu Lei Chi Tao Zhang
Copyright Year	2010
Description	Author affiliation: College of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China (Hong-Jun Sun; Jian Liu; Lei Chi; Tao Zhang)
Abstract	The vortex signal is greatly disturbed by noises from pipe vibration, which results in difficulties of using vortex flowmeter in vibration environment. In order to solve the problem, a new method of anti-cyclical vibration for vortex flowmeter is proposed in this paper, which aims to eliminate the vibration of the vortex flowmeter via detecting vibration signal. The main frequency component of pipe vibration signal is analyzed by using EMD method and the energy method based on IMF. Then the main frequency component is chosen as a notch filter. Subsequently, a true vortex signal is gained via filtering the complex vortex signal in the frequency domain. Through experimental measurement of gas flow under different acceleration and directions of vibration, a better linearity of measurement is achieved by the proposed method in vibration environment.
Starting Page	216
Ending Page	221
File Size	161871
Page Count	6
File Format	PDF
ISBN	9781424465309
e-ISBN	9781424465316
DOI	10.1109/ICWAPR.2010.5576338
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vibrations Empirical Mode Decomposition IMF's energy method Time frequency analysis Wavelet analysis Anti-cyclical vibration Digital notch frequency domain Acceleration Probes
Content Type	Text
Resource Type	Article

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