Research on Cable Force Monitoring of Steel Structure Based on Wireless Vibration Sensors
The vibration frequency method,as a fast testing method for tensioned cable force,is also widely used in real-time monitoring of cable force.The method depends on vibration sensors to pick up micro vibration signals of the cable,and calculates cable force by signals frequency.Traditional acceleration sensors use signal lines to transmit signals,which limits the number of monitoring points and leads to complex wiring and high maintenance costs.In this article,a cable force monitoring system is built based on a new type of wireless vibration sensors,and the system is applied to online monitoring of cable force in a steel structure.This wireless vibration sensor,which is based on MEMS technology,realizes independent signal acquisition,local calculation,and wireless upload,and has self powered function.Monitoring data shows that the monitoring results represent high accuracy and low error rate,and the sensors meet demand for cable force monitoring of steel structures cable.The cable force of the steel structure varies within a certain range,and is related to dynamic load changes.
wireless vibration sensorsvibration frequency methodcable force monitoring
NETL
NSTL
万方数据
维普
