NDLI: A method of extending the lower measured value of ultrasonic Doppler Flowmeter

Content Provider	IEEE Xplore Digital Library
Author	Li Xiaojing Wang Ping
Copyright Year	2011
Description	Author affiliation: School of electrical engineering and automation, Tianjin Polytechnic University, China (Wang Ping) \|\| Computation center, Tianjin Polytechnic University, China (Li Xiaojing)
Abstract	In order to improve the measure performance of gas ultrasonic Doppler Flowmeter in lower velocity, the optimized algorithm of autocorrelation filtering is applied to increase signal to noise ratio. Then by applying Fast Fourier Transform (FFT), frequency is derived and the invalidation problem of Fourier Transform when the velocity is under 0.2m/s is avoided. The result shows that, when the velocity is under 0.08m/s, this method is very efficient in rejecting interference noise and improving successful rate of identifying signals, therefore extends the lower measure limit of ultrasonic Doppler Flowmeter.
Starting Page	2889
Ending Page	2891
File Size	250951
Page Count	3
File Format	PDF
ISBN	9781424480364
e-ISBN	9781424480395
DOI	10.1109/ICEICE.2011.5778016
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Correlation Automation Fluid flow measurement Ultrasonic variables measurement Microcontroller Fast Fourier Transform (FFT) Electric variables measurement Autocorrelation filter Acoustics Doppler effect Doppler flow measurement
Content Type	Text
Resource Type	Article

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