DocumentCode
393537
Title
An accurate pipe length measurement using an acoustic sensor
Author
Okamoto, O. Masayuki ; Tanaka, Shogo
Author_Institution
Fac. of Eng., Yamaguchi Univ., Japan
Volume
2
fYear
2002
fDate
5-7 Aug. 2002
Firstpage
1105
Abstract
The authors previously developed an online length measurement system for pipes with closed ends by making use of the stationary waves in the pipes. The system adopted sound pressures and their derivatives of several modes of the stationary waves as the state variables of a linear dynamic system and reduced the length measurement to a parameter estimation problem, and thereby realized a highly accurate real-time pipe length measurement. This paper presents a new length measurement system for pipes with open ends.
Keywords
Kalman filters; acoustic waves; compensation; length measurement; maximum likelihood estimation; real-time systems; Kalman filter; linear dynamic system; maximum likelihood method; online measurement system; open end compensation; parameter estimation; pipes length measurement; real-time system; sound pressures; stationary waves; Acoustic noise; Acoustic sensors; Acoustical engineering; Equations; Fluctuations; Length measurement; Loss measurement; Parameter estimation; Real time systems; Sampling methods;
fLanguage
English
Publisher
ieee
Conference_Titel
SICE 2002. Proceedings of the 41st SICE Annual Conference
Print_ISBN
0-7803-7631-5
Type
conf
DOI
10.1109/SICE.2002.1195335
Filename
1195335
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