A Simple Optical Fiber Interferometer Based Breathing Sensor

Authors

Xixi Li, Tsinghua University
Dejun Liu, Technological University DublinFollow
Rahul Kumar, Northumbria University
Wai Pang Ng, Northumbria University, Newcastle, Uk
Yong-qing Fu, Northumbria University, Newcastle, Uk
Jinhui Yuan, Beijing University, China
Chongxiu Yu, Beijing University, China
Yufeng Wu, Lishui University, China
Guorui Zhou, China Academy of Engineering Physics, China
Gerald Farrell, Technological University DublinFollow
Yuliya Semenova, Technological University DublinFollow
Qiang Wu, Northumbria UniversityFollow

Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Publication Details

Measurement Science and Technology, Vol. 28, No. 3, March 2017

Abstract

A breathing sensor has been experimentally demonstrated based on a singlemode–multimode– singlemode (SMS) fiber structure which is attached to a thin plastic film in an oxygen mask. By detecting power variations due to the macro bending applied to the SMS section by each inhalation and exhalation process, the breath state can be monitored. The proposed sensor is capable of distinguishing different types of breathing conditions including regular and irregular breath state. The sensor can be used in a strong electric/magnetic field and radioactive testing systems such as magnetic resonance imaging (MRI) systems and computed tomography (CT) examinations where electrical sensors are restricted.

DOI

https://doi.org/10.1088/1361-6501/aa577d.

Recommended Citation

Li, X., Liu, D. & Kumar, R. (2017). A simple optical fiber interferometer based breathing sensor. Measurement Science and Technology, vol. 28, no. 3. doi: 10.1088/1361-6501/aa577d.