Publications

@article{Limweshasin2024-mu,

title = {Respiratory rate monitoring via a Fibre Bragg Grating-embedded  respirator mask with a wearable miniature interrogator},

author = {Nat Limweshasin and Itzel Avila Castro and Serhiy Korposh and Stephen P Morgan and Barrie R Hayes-Gill and Mark A Faghy and Ricardo Correia},

doi = {10.3390/s24237476},

year  = {2024},

date = {2024-11-01},

urldate = {2024-11-01},

journal = {Sensors (Basel)},

volume = {24},

number = {23},

pages = {7476},

publisher = {MDPI AG},

abstract = {A respiration rate (RR) monitoring system was created by 

 integrating a Fibre Bragg Grating (FBG) optical fibre sensor 

 into a respirator mask. The system exploits the sensitivity of 

 an FBG to temperature to identify an individual\'s RR by 

 measuring airflow temperature variation near the nostrils and 

 mouth. To monitor the FBG response, a portable, battery-powered, 

 wireless miniature interrogator system was developed to replace 

 a relatively bulky benchtop interrogator used in previous 

 studies. A healthy volunteer study was conducted to evaluate the 

 performance of the developed system (10 healthy volunteers). 

 Volunteers were asked to perform normal breathing whilst 

 simultaneously wearing the system and a reference spirometer for 

 120 s. Individual breaths are then identified using a peak 

 detection algorithm. The result showed that the number of 

 breaths detected by both devices matched exactly (100%) across 

 all volunteer trials.},

keywords = {ambulatory, fibre bragg grating, respiration rate, temperature, wearable},

pubstate = {published},

tppubtype = {article}

}