Uncertainty analysis of the Pitot tube coefficient using LDV measurement system

Fukuo Ohta; Shigenao Maruyama; Yasuaki Kohama

doi:10.1299/kikaib.62.145

Uncertainty analysis of the Pitot tube coefficient using LDV measurement system

Fukuo Ohta, Shigenao Maruyama, Yasuaki Kohama

Complex Flow Research Division

Research output: Contribution to journal › Article › peer-review

Abstract

Uncertainty analyses of velocity measurement with a Pitot tube and a LDV measurement system were conducted. A low-turbulence wind tunnel was used to minimize the error due to turbulence. The present investigation revealed that the uncertainty of the LDV system strongly depends on digital bit transfer in the signal processing unit. The uncertainty of a Pitot tube is affected by the accuracy of pressure measurement in a low-velocity region. The uncertainty of the Pitot tube coefficient was estimated using the present measurement system, and the value is less than 0.9%.

Original language	English
Pages (from-to)	145-152
Number of pages	8
Journal	Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	62
Issue number	593
DOIs	https://doi.org/10.1299/kikaib.62.145
Publication status	Published - 1996

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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