Limweshasin Nat, Castro Itzel Avila, Korposh Serhiy, Morgan Stephen P, Hayes-Gill Barrie R, Faghy Mark A, Correia Ricardo
Optics and Photonics Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
Biomedical and Clinical Research Theme, School of Human Sciences, University of Derby, Derby DE22 1GB, UK.
Sensors (Basel). 2024 Nov 23;24(23):7476. doi: 10.3390/s24237476.
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.
通过将光纤布拉格光栅（FBG）光纤传感器集成到呼吸面罩中，创建了一种呼吸频率（RR）监测系统。该系统利用FBG对温度的敏感性，通过测量鼻孔和嘴巴附近的气流温度变化来识别个体的RR。为了监测FBG的响应，开发了一种便携式、电池供电的无线微型询问器系统，以取代先前研究中使用的相对笨重的台式询问器。进行了一项健康志愿者研究，以评估所开发系统的性能（10名健康志愿者）。要求志愿者在佩戴该系统和参考肺活量计的同时进行正常呼吸120秒。然后使用峰值检测算法识别个体呼吸。结果表明，在所有志愿者试验中，两种设备检测到的呼吸次数完全匹配（100%）。
