Abstract:
Wearable light textiles are gaining widespread interest in application for measurement
and monitoring of biophysical parameters. Fiber optic sensors, in particular Bragg Grating (FBG)
sensors, can be a competitive method for monitoring of respiratory behavior for chest and abdomen
regions since the sensors are able to convert physical movement into wavelength shift. This study
aims to show the performance of elastic belts with integrated optical fibers during the breathing
activities done by two volunteers. Additionally, the work aims to determine how the positions of the
volunteers affect the breathing pattern detected by optical fibers. As a reference, commercial mobile
application for sensing vibration is used. The obtained results show that the FBGs are able to detect
chest and abdomen movements during breathing and consequently reconstruct the breathing pattern.
The accuracy of the results varies for two volunteers but remains consistent.