In this paper a new concept of human breath detection by means of fiber Bragg grating (FBG) based temperature sensor is reported. In presented approach, temperature of exhaled air is directly measured by FBG, and its Bragg wavelength changes allow for determine breathing rate. Experimental results of comparison the FBG sensor with electronic one, show significant advantages of our solution, especially when faster and/or plate breathing is detected. Another advantage of proposed fiber Bragg grating based breathing rate sensor is its ability to work in the high electromagnetic field environment, for example during the magnetic resonance imaging.

Date Published: 7 August 2017
PDF: 6 pages
Proc. SPIE 10445, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2017, 104451A (7 August 2017); doi: 10.1117/12.2281106

Published in SPIE Proceedings Vol. 10445:
Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2017
Ryszard S. Romaniuk; Maciej Linczuk, Editor(s)