REALISATION OF A PRIMARY AIR VELOCITY STANDRAD USING LASER DOPPLER ANEMOMETER AND PRECISION WIND TUNNEL

Jian Wu

Abstract

A primary air velocity meter calibration standard comprising of a precisely controlled wind tunnel system and a Laser Doppler Anemometry (LDA) system was developed for the calibration of air velocity meters from 0.2 m/s to 60 m/s with measurement uncertainties of less than 0.18% to 0.63%. The LDA system is used to verify the wind speed in the test section of the wind tunnel, and provide traceability to the SI for air speed measurements.

Keywords

air velocity measurement, wind profiles, measurement uncertainty

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IMEKO-WC-2009-TC9-413.pdf

DOI

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IMEKO TC

TC9 - Flow Measurement

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