Fiber ringdown breathing rate sensor

Zhihao Chen; Huiqing Yim; Ju Teng Teo; Soon Huat Ng

doi:10.1117/12.885176

17 May 2011 Fiber ringdown breathing rate sensor

Zhihao Chen, Huiqing Yim, Ju Teng Teo, Soon Huat Ng

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775357 (2011) https://doi.org/10.1117/12.885176
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

We describe a new sensor for patient's breathing measurement by using fiber loop ringdown spectroscopy. The sensing system consists of a typical single mode fiber-loop ring-down spectroscopy and a sensor mat which is used to introduce breathing related optical loss. The sensor mat could be put in the chair or embedded in the bed. It is non invasive measurement. The breathing rate sensor is demonstrated with an accuracy of +/-2 breaths per minute and stable sensor output.

Citation Download Citation

Zhihao Chen, Huiqing Yim, Ju Teng Teo, and Soon Huat Ng "Fiber ringdown breathing rate sensor", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775357 (17 May 2011); https://doi.org/10.1117/12.885176

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