基于虚拟仪器的超大容量光纤光栅传感网络分析仪
汤小娇 1
,雷振山 1
,戴世杰 2
(1. 唐山学院 唐山市机电一体化重点实验室,河北 唐山 063000;2. 河北工业大学 机器人及自动化研究所,
天津 300130)
摘要:根据大型复杂结构监测的工程需求,研究超大容量光纤布拉格光栅传感网络的传感器查询与波长解调原
理,设计了与虚拟仪器技术相结合的系统模型;在信号分析与处理、网络通信、数据存储等主要环节提出了
与超大容量光纤光栅传感网络分析相适应的技术方案. 通过实验验证,单台仪器的测量点数达到 1 000 点
以上,分析速度在 1 s 之内,波长分辨率为依10 pm,应变量程依800 伊10-6
,温度量程依100 益. 实验表明,仪器的
量程、精度、速度等指标均满足工程实践的要求.
关键词:光纤布拉格光栅;传感网络;超大容量;分析仪;虚拟仪器
中图分类号:TP212.2;TN247 文献标志码:A 文章编号:员远苑员原园圆源载(圆园11)园3原园园65原园4
Super capacity fiber bragg grating sensing net analyzer based on virtual instrument
TANG Xiao-jiao1
,LEI Zhen-shan1
,DAI Shi-jie2
(1. Tangshan Key Laboratory of Mechantronics,Tangshan College,Tangshan 063000,China;2. Institute of Robotics and
Automation,Hebei University of Technology,Tianjin 300130,China)
Abstract: According to the requirement of large complex structure monitoring,the principle of senser detection and
wavelength demodulation in super capacity fiber Bragg grating (FBG)sensing net was researched,and a model
of the system that based on virtual instrument was designed. The technology scheme were proposed which adapt
to super capacity FBG sensing net in main aspect,for example,signal processing,communication,data
storage,etc. By experimentation,the single equipment can measure exceed 1 000 points,and the time to
analyze those sensor is less than 1 s,the equipment gives a wavelength accuracy of about 依10 pm,the strain
range the equipment can measure is 依800伊10-6
,the temperature range the equipment can measure is 依100 益.
The results show that the range,precision and velocity of the instrument can all meet the engineering practice
demands.
Key words:fiber Bragg grating;sensing net;super capacity;analyzer;virtual instrument
收稿日期:2011-04-08 基金项目:河北省自然科学基金资助项目(F2007000118)
通信作者:汤小娇(1971—),女,硕士,副教授. E-mail:xiaojiaotang@sina.com
第30 卷第3期圆园11 年6月天津工业大学学报允韵哉砸晕粤蕴 韵云 栽陨粤晕允陨晕 孕韵蕴再栽耘悦匀晕陨悦 哉晕陨灾耘砸杂陨栽再

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