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Proceedings Paper

On-axis laser doppler velocimetry for turbomachinery applications using optical fiber techniques
Author(s): David A. Egan; Stephen W. James; Ralph P. Tatam
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Paper Abstract

Conventional laser Doppler velocimeters, based on the Doppler difference technique are capable of characterizing 3D flow fields. However, when working with limited optical access, there is an increase in the uncertainties in the measurement of the velocity component of the flow directed along the axis of the instrument. In this paper schemes incorporating interferometric and intensity based techniques are proposed to measure the on-axis velocity component over a wide range of velocities, operating within the constraints imposed by the limited optical access available in turbomachinery applications.

Paper Details

Date Published: 21 November 1997
PDF: 10 pages
Proc. SPIE 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III, (21 November 1997); doi: 10.1117/12.293392
Show Author Affiliations
David A. Egan, Cranfield Univ. (United Kingdom)
Stephen W. James, Cranfield Univ. (United Kingdom)
Ralph P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 3172:
Optical Technology in Fluid, Thermal, and Combustion Flow III
Soyoung Stephen Cha; James D. Trolinger; Masaaki Kawahashi, Editor(s)

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