Health monitoring of unmanned aerial vehicle based on optical fiber sensor array

Yuxiang Luo; Jingshi Shen; Fei Shao; Chunhui Guo; Ning Yang; Jiande Zhang

doi:10.1117/12.2284360

24 October 2017 Health monitoring of unmanned aerial vehicle based on optical fiber sensor array

Yuxiang Luo, Jingshi Shen, Fei Shao, Chunhui Guo, Ning Yang, Jiande Zhang

Proceedings Volume 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications; 104640K (2017) https://doi.org/10.1117/12.2284360
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China

Abstract

The unmanned aerial vehicle (UAV) in flight needs to face the complicated environment, especially to withstand harsh weather conditions, such as the temperature and pressure. Compared with conventional sensors, fiber Bragg grating (FBG) sensor has the advantages of small size, light weight, high reliability, high precision, anti-electromagnetic interference, long lift-span, moistureproof and good resistance to causticity. It’s easy to be embedded in composite structural components of UAVs. In the paper, over 1000 FBG sensors distribute regularly on a wide range of UAVs body, combining wavelength division multiplexing (WDM), time division multiplexing (TDM) and multichannel parallel architecture. WDM has the advantage of high spatial resolution. TDM has the advantage of large capacity and wide range. It is worthful to constitute a sensor network by different technologies. For the signal demodulation of FBG sensor array, WDM works by means of wavelength scanning light sources and F-P etalon. TDM adopts the technology of optical time-domain reflectometry. In order to demodulate efficiently, the most proper sensor multiplex number with some reflectivity is given by the curves fitting. Due to the regular array arrangement of FBG sensors on the UAVs, we can acquire the health state of UAVs in the form of 3D visualization. It is helpful to master the information of health status rapidly and give a real-time health evaluation.

Citation Download Citation

Yuxiang Luo, Jingshi Shen, Fei Shao, Chunhui Guo, Ning Yang, and Jiande Zhang "Health monitoring of unmanned aerial vehicle based on optical fiber sensor array", Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104640K (24 October 2017); https://doi.org/10.1117/12.2284360

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