Wireless Sensor Network based Structural Strain Field Monitoring System Research
Structure strain changes under external environmental or mechanical loads are the main monitoring parameter in structural health monitoring or mechanical property tests. This paper presents a wireless sensor network designed for monitoring large structural strain field variation. First of all, a precision strain sensor node is designed for multi-channel strain gauge signal conditioning and wireless monitoring. In order to establish a synchronous strain data acquisition network, the cluster-star network synchronization method is designed in detail. To verify the functionality of the designed wireless network for strain field monitoring capability, a multi-point network evaluation system is developed for an experimental aluminum plate structure for load variation monitoring. Based on the precision wireless strain nodes, the wireless data acquisition network is deployed to synchronously gather, process, and transmit strain gauge signals and monitor results under concentrated loads. This paper shows the efficiency of the wireless sensor network for large structural strain field monitoring.
Jian WU Shenfang YUAN
School of Mechanical Engineering, Nanjing University of Science and Technology, Jiangsu, China The Aeronautic Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics
国际会议
The 4th International Conference on Mechanical Engineering and Mechanics(第四届国际机械工程与力学会议)
苏州
英文
358-363
2011-08-11（万方平台首次上网日期，不代表论文的发表时间）