Bio-mimetic optical sensor for structural deflection measurement

Susan A. Frost; Cameron H. G. Wright; Robert W. Streeter; Md. Arif Khan; Steven F. Barrett

doi:10.1117/12.2044975

8 March 2014 Bio-mimetic optical sensor for structural deflection measurement

Susan A. Frost, Cameron H. G. Wright, Robert W. Streeter, Md. Arif Khan, Steven F. Barrett

Proceedings Volume 9055, Bioinspiration, Biomimetics, and Bioreplication 2014; 90550A (2014) https://doi.org/10.1117/12.2044975
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Reducing the environmental impact of aviation is a primary goal of NASA aeronautics research. One approach to achieve this goal is to build lighter weight aircraft, which presents complex challenges due to a corresponding increase in structural flexibility. Wing flexibility can adversely affect aircraft performance from the perspective of aerodynamic efficiency and safety. Knowledge of the wing position during flight can aid active control methods designed to mitigate problems due to increased wing flexibility. Current approaches to measuring wing deflection, including strain measurement devices, accelerometers, or GPS solutions, and new technologies such as fiber optic strain sensors, have limitations for their practical application to flexible aircraft control. Hence, it was proposed to use a bio-mimetic optical sensor based on the fly-eye to track wing deflection in real-time. The fly-eye sensor has several advantages over conventional sensors used for this application, including light weight, low power requirements, fast computation, and a small form factor. This paper reports on the fly-eye sensor development and its application to real-time wing deflection measurement.

Citation Download Citation

Susan A. Frost, Cameron H. G. Wright, Robert W. Streeter, Md. Arif Khan, and Steven F. Barrett "Bio-mimetic optical sensor for structural deflection measurement", Proc. SPIE 9055, Bioinspiration, Biomimetics, and Bioreplication 2014, 90550A (8 March 2014); https://doi.org/10.1117/12.2044975

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