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Proceedings Paper

Examination of influence of fringe field parameters on accuracy of velocity measurements of digital laser anemometer
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Paper Abstract

The influence of optical and electronic parameters of digital laser anemometer on the accuracy of velocity measurements was investigated. The sizes and fringe number of the interference field of the anemometer was examined for circular and astigmatic entrance beams to verify the influence of the above parameters on Doppler signal parameters. The spectrum averaging procedure was applied to decrease the uncertainty of Doppler frequency measurements. The relative standard deviation of measurements was achieved < 0.1% for the best configuration of optical and electronic parameters of the anemometer.

Paper Details

Date Published: 12 December 1994
PDF: 8 pages
Proc. SPIE 2340, Interferometry '94: New Techniques and Analysis in Optical Measurements, (12 December 1994); doi: 10.1117/12.195940
Show Author Affiliations
Jan Karol Jabczynski, Military Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 2340:
Interferometry '94: New Techniques and Analysis in Optical Measurements
Malgorzata Kujawinska; Krzysztof Patorski, Editor(s)

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