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Proceedings Paper

High-speed measurement of an air transect’s temperature shift heated by laser beam
Author(s): WenYu Li; ZongFu Jiang; Fengjie Xi; Qiang Li; Wenke Xie
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Paper Abstract

Laser beam heat the air on the optic path, Beam-deflection optical tomography is a non-intrusive method to measure the 2-dimension temperature distribution in the transect. By means of linear Hartmann Sensor at the rate of 27kHz, the optic path was heated by a 2.7μm HF laser, continuous and high time resolution gradients of optic phase were obtained. the result of analysing and calculation showed the temperament shift in the heated beam path was not higher than 50K when the HF laser power was 9W. The experiment showed that it is a practical non-intrusive temperature shift measurement method for a small area aero-optical medium.

Paper Details

Date Published: 10 February 2005
PDF: 7 pages
Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); doi: 10.1117/12.571619
Show Author Affiliations
WenYu Li, National Univ. of Defense Technology (China)
ZongFu Jiang, National Univ. of Defense Technology (China)
Fengjie Xi, National Univ. of Defense Technology (China)
Qiang Li, National Univ. of Defense Technology (China)
Wenke Xie, National Univ. of Defense Technology (China)

Published in SPIE Proceedings Vol. 5638:
Optical Design and Testing II
Yongtian Wang; Zhicheng Weng; Shenghua Ye; Jose M. Sasian, Editor(s)

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