NDLI: Design of particle velocity measurement system based on spatial filtering effect of capacitive sensor

Content Provider	IEEE Xplore Digital Library
Author	Shen Daoqing Yang Gang Wang Yutao Guo Tingting
Copyright Year	2014
Description	Author affiliation: Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China (Shen Daoqing; Yang Gang; Wang Yutao; Guo Tingting)
Abstract	When a particle moves through a spatial filter, the output signal contains not only the periodic frequency component related to particle velocity, but also the low frequency component called the pedestal frequency which decreases the signal-to-noise ratio and affects the accuracy of particle velocity measurement. In this paper, a novel spatial filtering method based on capacitive measurement using a differential measurement technology is proposed to remove the pedestal frequency component, in the meanwhile to improve the accuracy and signal-to-noise ratio of the measurement system. Particle velocity measurement system test rig based on spatial filtering effect of capacitive sensor contains AC-based capacitance-voltage transforming circuit, NI DAQ-card, capacitive sensor and computer with LabVIEW2012 programming environment. Experimental data results indicate that the novel spatial filtering method is capable of removing the pedestal frequency component from the output signal with relative error lower than ±2.6% and standard deviation within 0.092 over a velocity range of 2-5 m/s.
Starting Page	4132
Ending Page	4136
File Size	3958285
Page Count	5
File Format	PDF
ISBN	9781479937073
e-ISBN	9781479937080
DOI	10.1109/CCDC.2014.6852905
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-31
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Filtering Atmospheric measurements Spatial Filtering Method Particle Velocity Measurement Particle measurements Capacitance Frequency measurement Gas-solid Two-phase Flow Velocity measurement Capacitance Sensor
Content Type	Text
Resource Type	Article

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