Medical respiratory monitoring sensors based on microbend fiber loss

Yong Zhao; Liuting Zhouxiao; Jian Yang; Xianjing Li

doi:10.1117/12.2244480

9 January 2017 Medical respiratory monitoring sensors based on microbend fiber loss

Yong Zhao, Liuting Zhouxiao, Jian Yang, Xianjing Li

Proceedings Volume 10025, Advanced Sensor Systems and Applications VII; 1002517 (2017) https://doi.org/10.1117/12.2244480
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

In this work, a medical respiratory monitoring sensor based on the microbend effect of optical fiber on light transmission is proposed. The microbend effect of multimode optical fiber is analyzed theoretically using optical theory. A respiratory signal modulator with a “sandwich” microbender structure is designed enabling the noninvasive real-time monitoring. In vitro testing showed that the proposed sensor has excellent following characteristics and can automatically discern respiratory condition, the signal-to-noise ratio can be better than 28dB.

Citation Download Citation

Yong Zhao, Liuting Zhouxiao, Jian Yang, and Xianjing Li "Medical respiratory monitoring sensors based on microbend fiber loss", Proc. SPIE 10025, Advanced Sensor Systems and Applications VII, 1002517 (9 January 2017); https://doi.org/10.1117/12.2244480

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