LabVIEW在振动系统特性参数测量中的应用

Application of LabVIEW to Characteristic Parameter Measurement of Vibration System

传统的共振法测量振动系统动态特性参数存在着仪器利用率不高、可重构性较差等问题。运用图形化编程语言LabVIEW设计了振动参数测量及动态特性分析软件,利用"软件就是仪器"的技术方法,对振动系统的加速度、速度、位移信号,进行实时处理、显示以及频谱分析,实现了固有频率、阻尼比等动态特性参数的估计。

The traditional method of characteristic parameter measurement of vibration system carries some faults, such as inefficient operation, weak restructuring on measurement instruments, etc. The application of vibration measurement and analysis of dynamic characteristic are designed on the graphical programming language LabVIEW. By adopting new technique that ＂software is instrument＂, this paper processes and displays the acceleration, speed, displacement signal of vibration, and its spectrum is analyzed. And then the parameters of dynamic characteristic, such as inherence frequency, damp etc, are gained.