Monitoring Respiration and Cardiac Activity Using Fiber Bragg Grating-Based Sensor
Monitoring Respiration and Cardiac Activity Using Fiber Bragg Grating-Based Sensor
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DOI：
10.1109/tbme.2012.2194145
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发表时间：
2012-07-01
影响因子：
4.6
通讯作者：
Lewandowski, Jaroslaw
中科院分区：
文献类型：
--
作者：
Dziuda, Lukasz;Skibniewski, Franciszek Wojciech;Lewandowski, Jaroslaw
本文展示了一种用于人体生命活动的光纤传感器的设计以及对其进行的实验室评估的结果。作者开发了一种设备，可以监测生命活动（呼吸和心律）引起的人体振动。该设备由刻入单模光纤的布拉格光栅组成，工作波长约为 1550 nm。光纤布拉格光栅 (FBG) 安装在气动垫内，放置在座椅靠背和受监控人员的背部之间。坐垫的变形（涉及光纤光栅的变形）与靠在坐垫上的身体的振动成正比。实验室研究表明，该传感器可以获取传感 FBG 上由呼吸引起的 50-124 mu 应变和由心跳引起的约 8.3 mu 应变范围内的动态应变，这些动态应变可以通过当今的 FBG 询问系统完全测量。该传感器的最大相对测量误差为12%。该传感器设计简单，可轻松安装在飞行员和驾驶员座椅上，用于监测飞行员和驾驶员的生理状况。
This paper shows the design of a fiber-based sensor for living activities in human body and the results of a laboratory evaluation carried out on it. The authors have developed a device that allows for monitoring the vibrations of human body evoked by living activities-breathing and cardiac rhythm. The device consists of a Bragg grating inscribed into a single mode optical fiber and operating on a wavelength of around 1550 nm. The fiber Bragg grating (FBG) is mounted inside a pneumatic cushion to be placed between the backrest of the seat and the back of the monitored person. Deformations of the cushion, involving deformations of the FBG, are proportional to the vibrations of the body leaning on the cushion. Laboratory studies have shown that the sensor allows for obtaining dynamic strains on the sensing FBG in the range of 50-124 mu strain caused by breathing and approximately 8.3 mu strain induced by heartbeat, which are fully measurable by today's FBG interrogation systems. The maximum relative measurement error of the presented sensor is 12%. The sensor's simple design enables it to be easily implemented in pilot's and driver's seats for monitoring the physiological condition of pilots and drivers.