Simultaneous measurement of breathing rate and heart rate using a microbend multimode fiber optic sensor

Zhihao Chen; Doreen Lau; Ju Teng Teo; Soon Huat Ng; Xiufeng Yang; Pin Lin Kei

doi:10.1117/1.JBO.19.5.057001

1 May 2014 Simultaneous measurement of breathing rate and heart rate using a microbend multimode fiber optic sensor

Zhihao Chen, Doreen Lau, Ju Teng Teo, Soon Huat Ng, Xiufeng Yang, Pin Lin Kei

Author Affiliations +

Journal of Biomedical Optics, Vol. 19, Issue 5, 057001 (May 2014). https://doi.org/10.1117/1.JBO.19.5.057001

Abstract

We propose and demonstrate the feasibility of using a highly sensitive microbend multimode fiber optic sensor for simultaneous measurement of breathing rate (BR) and heart rate (HR). The sensing system consists of a transceiver, microbend multimode fiber, and a computer. The transceiver is comprised of an optical transmitter, an optical receiver, and circuits for data communication with the computer via Bluetooth. Comparative experiments conducted between the sensor and predicate commercial physiologic devices showed an accuracy of ±2 bpm for both BR and HR measurement. Our preliminary study of simultaneous measurement of BR and HR in a clinical trial conducted on 11 healthy subjects during magnetic resonance imaging (MRI) also showed very good agreement with measurements obtained from conventional MR-compatible devices.

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Zhihao Chen, Doreen Lau, Ju Teng Teo, Soon Huat Ng, Xiufeng Yang, and Pin Lin Kei "Simultaneous measurement of breathing rate and heart rate using a microbend multimode fiber optic sensor," Journal of Biomedical Optics 19(5), 057001 (1 May 2014). https://doi.org/10.1117/1.JBO.19.5.057001

Published: 1 May 2014

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KEYWORDS

Sensors

Fiber optics sensors

Heart

Beam propagation method

Multimode fibers

Magnetic resonance imaging

Signal detection

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