基于振弦式传感器的桥梁无线测试系统及应用

针对传统的应变采集传输数据方法存在的问题,利用无线通信技术实现数据无线传输.融合振弦式传感器、电子计算机、无线通信、单片机、电路技术、数据库和软件技术,提出一种用于桥梁结构应变测试的网络化的无线测试系统,解决了数据的无线传输问题.对系统进行了通化西昌斜拉桥的现场试验测试.结果表明:所研发的无线测试系统具有良好的精度,具有传输可靠、操作简单、稳定性强、无需借助现有的通信网络和价格低廉等特点,适合在实际工程中应用推广.

Wireless measurement system and its application for bridge based on the resonant wire transducer

Aiming at some problems existing in the strain collection and transmission system,the data wireless transmission was realized with the wireless communication technology. A wireless system based on the strain sensor applied to the bridge structural strain monitoring is proposed to realize the data wireless communication according to the principle of resonant wire transducer,computer,wireless transmission,Single Chip Micyoco,electrocircuit,database and software. Tests of the wireless measurement system were conducted to Xichang Cable-stayed Bridges. The research shows that the proposed wireless system can not only realize the precise monitoring,but also has many advantages such as reliable transmitting,simple operation,high stability,low cost and without the help of present communication network. It can be applied compatibly to the practical bridge engineering monitoring.