Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Airspeed Calibration Services: Laser Doppler Anemometer Calibration and Its Uncertainty

Published

Author(s)

Iosif I. Shinder, Michael R. Moldover, J. M. Hall, Mike Duncan, Joe Keck

Abstract

The National Institute of Standards and Technology (NIST) and the Oak Ridge National Laboratory (ORNL) are improving their airspeed calibration services. Both laboratories use spinning disks to generate linear velocities that are traceable to NIST’s length and time standards. We compared their spinning disks using NIST’s laser Doppler anemometer (LDA) as a transfer standard. At 10 m/s, the disks differed by (0.11 ± 0.26) %, where the uncertainty is two standard deviations. We discuss the techniques used to calibrate LDAs with spinning disks and their uncertainties.
Proceedings Title
8th International Symposium on Fluid Flow Measurement
Conference Dates
June 18-22, 2012
Conference Location
Colorado Springs, CO

Keywords

laser doppler calibration, spinning disk calibration, primary standard

Citation

Shinder, I. , Moldover, M. , Hall, J. , Duncan, M. and Keck, J. (2012), Airspeed Calibration Services: Laser Doppler Anemometer Calibration and Its Uncertainty, 8th International Symposium on Fluid Flow Measurement , Colorado Springs, CO, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=911456 (Accessed October 7, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created June 20, 2012, Updated February 19, 2017