Development of optical fiber sensing instrument for aviation and aerospace application

Junfeng Jiang; Tiegen Liu; Kun Liu; Shuang Wang; Jinde Yin; Bofu Zhao; Jingchuang Zhang; Luyao Song; Peng Zhao; Fan Wu; Xuezhi Zhang

doi:10.1117/12.2037227

20 December 2013 Development of optical fiber sensing instrument for aviation and aerospace application

Junfeng Jiang, Tiegen Liu, Kun Liu, Shuang Wang, Jinde Yin, Bofu Zhao, Jingchuang Zhang, Luyao Song, Peng Zhao, Fan Wu, Xuezhi Zhang

Author Affiliations +

Proceedings Volume 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 90440K (2013) https://doi.org/10.1117/12.2037227
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

Optical fiber sensor has great advantage for applications dealing with extreme environment. We developed a high precision optical pressure sensor for aviation industry. The optical pressure sensor is based on two-beam interference of microcavity and is fabricated with Micro-electromechanical systems (MEMS) and laser fusion technology. The cavity length variation resulting from external pressure is demodulated with spatial polarization low coherence interference unit and a high stable phase demodulation algorithm. The effect of light source output parameter is also investigated. We carried out research on optical fiber strain, temperature and acoustic vibration sensor for aerospace application. The optical fiber sensors for strain and temperature measurement are based on fiber Bragg grating(FBG).Both bare FBG and packaged FBG performances under cryogenic temperature and high vacuum are investigated. An eight-channel parallel FBG wavelength interrogator is developed. The optical fiber acoustic vibration sensor is based on two-beam interference of microcavity and use intensity demodulation method for high speed response. The mutiple-parameter and multiplepoint measurement instrument is successfully applied to status monitoring of water sublimator.

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Junfeng Jiang, Tiegen Liu, Kun Liu, Shuang Wang, Jinde Yin, Bofu Zhao, Jingchuang Zhang, Luyao Song, Peng Zhao, Fan Wu, and Xuezhi Zhang "Development of optical fiber sensing instrument for aviation and aerospace application", Proc. SPIE 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 90440K (20 December 2013); https://doi.org/10.1117/12.2037227

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