基于MEMS的远程桥梁索力监测系统设计  

Design of remote bridge cable force monitoring system based on MEMS

作　　者：蔡鄂[1] 李东明[1] 胡亚斌[1] 王永涛[1] 

机构地区：[1]中国地质大学信息实验中心,湖北武汉430074

出　　处：《电子技术应用》2015年第10期68-70,共3页Application of Electronic Technique

基　　金：湖北省自然科学基金(2010CDA007;2011CDB343);中央高校基本科研业务费专项资金(CUGL120278)

摘　　要：桥梁拉索的索力值是衡量桥梁安全性能的重要指标。研制了基于MEMS的无线索力检测系统,介绍了基于振动频谱法测量索力的原理,给出了基于MEMS索力仪的整体设计方案,最后进行了精密振动台测试与工程现场拉索的测试实验。实验表明,研制的无线传感系统能够准确地进行索力值检测,并可以扩展为在线监测系统。为桥梁安全监测提供了一种高效的索力测试系统及方法。Cable force of bridge cable is an important index to measure the safety of bridge. A wireless cable force measure system based MEMS acceleration sensor was proposed. First we introduced the principle of cable force measurement by the method of vi- bration spectrum, and then we designed the cable force measure system. Finally the precision vibration test bench and real engineering cable test was developed. Experiments show that our wireless sensor system based on MEMS can accurately carry out cable force detection, and can be extended to online monitoring system. It provides an effective method for bridge safety monitoring.

关 键 词：加速度传感器 振动法 索力 频谱分析 TCP/IP 

分 类 号：TH825[机械工程—仪器科学与技术]