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为了分析各种建筑的振动,或进行振动控制,或通过对振动信号的分析评估建筑是否存在损伤,需要对结构的振动进行测量。如,通过测量桥梁的振动可以得到桥梁承受交变载荷的情况,从而对桥梁的使用情况进行评估。但是如果要实时测量桥梁各特征点的振动情况,不可能利用台式计算机和数据采集卡来完成。因此,本设计利用ICP传感器、数据采集卡和笔记本电脑设计一个基于labview的便携式振动信号测试分析系统,并利用小波分析对信号进行降噪和压缩,提取出真正的振动信号,使振动的测试和分析变得非常方便。
Structural vibrations need to be measured in order to analyze vibrations in various buildings or to control vibrations, or to evaluate the presence or absence of damage in buildings by analyzing vibration signals. For example, by measuring the vibration of the bridge can be obtained under alternating load on the bridge to assess the use of the bridge. However, it is impossible to use the desktop computer and data acquisition card to measure the vibration of the bridge’s characteristic points in real time. Therefore, this design uses ICP sensor, data acquisition card and laptop to design a labview-based portable vibration signal test and analysis system, and use wavelet analysis to reduce and compress the signal, extract the real vibration signal, make the vibration test and Analysis becomes very convenient.