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Proceedings Paper

Hypersonic aerodynamics measurement with fiber optic balance based on MEMS Fabry-Perot strain sensor
Author(s): Fu Min; Yanguang Yang; Huacheng Qiu; Shaolong Zhong; Xingcai Pi
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Paper Abstract

In general, conventional resistance strain balances are used to obtain aerodynamics forces in hypersonic wind tunnels. Owing to the advantages of fast response, high sensitivity and anti-electromagnetic interference, fiber optic sensors provide a new technical approach to wind tunnel strain balance. In this paper, a three-component fiber optic balance based on MEMS Fabry-Perot strain sensor has been developed. The MEMS strain sensor based on Fabry-Perot interference was fabricated by surface and bulk MEMS techniques. The MEMS FP strain sensor has a high finesse factor by adapting high-reflection films deposited on the surfaces of FP cavity. The three-component fiber optic balance has been calibrated, and evaluated in a hypersonic low density wind tunnel. The results of static calibration and wind tunnel tests have declared a good performance compared to the results of resistance strain balance.

Paper Details

Date Published: 12 December 2018
PDF: 8 pages
Proc. SPIE 10849, Fiber Optic Sensing and Optical Communication, 108490I (12 December 2018); doi: 10.1117/12.2504150
Show Author Affiliations
Fu Min, Hypervelocity Aerodynamics Institute (China)
Yanguang Yang, Hypervelocity Aerodynamics Institute (China)
Huacheng Qiu, Hypervelocity Aerodynamics Institute (China)
Shaolong Zhong, Shanghai Institute of Microsystem and Information Technology (China)
Xingcai Pi, Hypervelocity Aerodynamics Institute (China)

Published in SPIE Proceedings Vol. 10849:
Fiber Optic Sensing and Optical Communication
Jie Zhang; Songnian Fu; Qunbi Zhuge; Ming Tang; Tuan Guo, Editor(s)

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