摘要
应用空间相干的光纤传感系统,结合数字图象处理装置,根据干涉条纹的移动方向和移动数,结合物理公式,采集和处理振动状态的图象信号,测得确定性振动的应变～时程曲线,振动频率,与理论解符合,在此基础上测得随机振动的应变～时程曲线,为结构工程振动检测提供一个新方法。
Using the system of fiber optic sensor in special coherence combined digital image processing setup and recording to moved number and direction of interferometric fringe and physical formula, collecting and processing image signal of vibration state is presented and professional software is studied and strain(time curve under random vibration state is measured after strain (time curve and vibration frequency for stable vibration were measured where they correspond with theory solution in this paper. This research provides a kind of new method for real -time vibration monitoring of structure engineering.
出处
《应用激光》
CSCD
北大核心
2002年第4期382-384,共3页
Applied Laser
基金
教育部<结构工程与振动开放研究实验室>基金
