用于呼吸频率监测的光纤传感器的光学特性。
Optical aspects of a fibre-optic sensor for respiratory rate monitoring.
作者信息
Pettersson H, Stenow E N, Cai H, Oberg P A
机构信息
Department of Biomedical Engineering, Linköping University, Sweden.
出版信息
Med Biol Eng Comput. 1996 Nov;34(6):448-52. doi: 10.1007/BF02523849.
PMID:9039747
Abstract
A new sensor for respiratory rate monitoring is described. The sensor uses an optical fibre that detects the evaporated humidity from the mouth and/or nose at each exhalation. The condensed humidity substantially alters the coupling of light from the optical fibre to the surrounding medium, which can be monitored by a photo-detector. The sensing principle is evaluated using ray-tracing simulation and scattering measurements.
摘要
本文描述了一种用于监测呼吸频率的新型传感器。该传感器使用一根光纤，在每次呼气时检测口腔和/或鼻腔呼出的水汽。凝结的水汽会显著改变光纤与周围介质之间的光耦合，这可以通过光电探测器进行监测。利用光线追踪模拟和散射测量对传感原理进行了评估。
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