摘要
采用有限元分析方法,根据人体温度的特性,建立了人体臂膊的温度场数学模型,为医用光纤布喇格光栅(FBG)测量人体温度提供理论依据。设计并实现了一种新的光纤光栅人体温度监测系统,通过对单波长的脉冲激光进行调制,形成超窄带的脉冲激光,高速光电检测系统检测出布喇格光栅的反射谱线,通过ARM信号处理系统分析反射谱线功率谱特性,确定人体温度。实验结果表明,系统检测的温度动态围为28～48℃,测量精度为0.1℃,响应速度为10s,可应用于人体温度高精度监测。
The finite element method was used to build the mathematical model of temperature field for upper limb,according to characteristic of the human body.It provides a theoretical basis to the fiber Bragg grating（FBG） used to measure body temperature.Designed and implemented a new FBG body temperature monitoring system.The sin-gle-wavelength laser pulse was modulated,and it can form ultra-narrow pulse laser.The high-speed optical inspection system can detect the reflection grating spectra.The ARM processing system obtained the body temperature by analyses the power spectral characteristics.Experimental results show that the system can detects the temperature of the dynamic around the（28~48）℃,measurement accuracy of 0.1℃,response rate of 10s,the system with high preci-sion,fast response,can be applied to the human body temperature monitoring.
出处
《光通信技术》
CSCD
北大核心
2011年第1期38-40,共3页
Optical Communication Technology
基金
河北省博士后基金"基于FPGA的分布式光纤光栅温度监控系统"资助
作者简介
张燕君（1973-），女，博士，燕山大学信息学院副教授，主要从事光纤传感及信号处理方面的研究，目前为海湾安全技术有限公司工作站在站博士后。
