DocumentCode
855701
Title
Velocity-dependent characteristics of modulated ultrasonic signal in gas flow
Author
Niernann, M. ; Hans, Volker
Author_Institution
Inst. of Meas. & Control, Essen Univ., Germany
Volume
51
Issue
4
fYear
2002
fDate
8/1/2002 12:00:00 AM
Firstpage
601
Lastpage
604
Abstract
Natural variations of pressure, density, and velocity occur in streaming fluid modulated ultrasonic signals. The characteristics of modulated ultrasonic signals in gas flow are strongly dependent on velocity. This paper describes a way to find a velocity-dependent characteristic quality detected in the modulated signal and to determine the flow rate on the basis of signal analysis of only one ultrasonic barrier.
Keywords
acoustic signal processing; demodulation; flow measurement; ultrasonic measurement; gas flow measurement; modulated ultrasonic signal; signal analysis; signal demodulation; streaming fluid; ultrasonic barrier; velocity-dependent characteristics; Amplitude modulation; Demodulation; Fluid flow; Fluid flow measurement; Frequency; Sampling methods; Signal analysis; Time measurement; Ultrasonic imaging; Ultrasonic variables measurement;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.2002.802247
Filename
1044662
Link To Document