一种高精度无线应变传感器节点的设计与实现  

Design and Implementation of a High Precision Wireless Strain Sensor Node

作　　者：戴亚文[1] 彭磊[2] 邱航[1] 李小强[1] 

机构地区：[1]武汉理工大学理学院,湖北武汉430070 [2]武汉理工大学自动化学院,湖北武汉430070

出　　处：《武汉理工大学学报（信息与管理工程版）》2010年第3期357-360,共4页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：国家自然科学基金资助项目(10672128)

摘　　要：应变节点耗电量大且布线繁琐,应变信号容易受到干扰,电源管理、通信方式和高精度应变信号采集是大型结构健康监测应用过程中需要解决的技术难点。结合智能传感器的设计思想、无线通信和太阳能电池的技术优势,自主开发设计出一种高精度应变无线传感器节点。从电源、放大、滤波降噪及无线通信4个方面讨论和设计了高精度应变传感器,并分析测试结果,证明该设计取得了良好的效果,为无线应变传感器的深入研究提供了一个良好的硬件平台。系统具有较高的精度,实用性强,成本低,功耗小,应用前景良好。Sensor nodes need much power;it is complicated to place their cables and signal can easily be interfered.So it is difficult to design power,communication and the circuit of high precision sampling in application of structure health monitoring.A high precision wireless strain sensor node was designed with combination the idea of intelligent sensor design with the advantages of wireless communication and solar energy.The design focused on power,amplifier,filter and wireless communication.The designed node showed a favorable effect and provided a high performance hardware platform for in-depth study on wireless strain sensor.The system run in high accuracy and practicality,low cost and power consumption,which means its promising application in structure health control.

关 键 词：应变传感器 无线通信 高精度 太阳能 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]