A mixing method for traceable air velocity measurements

Samuli Sillanpää; Martti Heinonen

doi:10.1088/0957-0233/19/8/085409

A mixing method for traceable air velocity measurements

Samuli Sillanpää, Martti Heinonen

Centre for Metrology and Accreditation Finland (MIKES)

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

1 Citation (Scopus)

Abstract

A novel and quite simple method to establish a traceability link between air velocity and the national standards of mass and time is presented in this paper. The method is based on the humidification of flowing air before the blower of a wind tunnel with a known mass flow of water. Then air velocity can be calculated as a function of humidification water flow. The method is compared against a Pitot-tube-based velocity measurement in a wind tunnel at the MIKES. The results of these two different methods agreed well, with a maximum difference of 0.7%.

Original language	English
Article number	085409
Journal	Measurement Science and Technology
Volume	19
Issue number	8
DOIs	https://doi.org/10.1088/0957-0233/19/8/085409
Publication status	Published - 21 Jul 2008
MoE publication type	A1 Journal article-refereed

Keywords

Air velocity
Mass flow
Traceability
Wind tunnel

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10.1088/0957-0233/19/8/085409

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A mixing method for traceable air velocity measurements

Abstract

Keywords

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