虚拟仪器及小波分析在轧机振动测试中的应用

摘要

虚拟仪器技术的轧机振动测试系统应用加速度传感器和数据采集卡采集轧机的振动信号,使用LabWindows/CVI编程语言及小波分析,完成轧机振动的测试和信号的频谱分析、小波消噪处理及振动信号的特征提取,找到振动信号的奇异性.%The paper introduces the mill vibration test system based on the virtual instrument technology.The vibration acceleration sensors and data acquisition card are used to collect the vibration signal of rolling mill.By using LabWindows/CVI programming languages and Wavelet analysis,the test system realizes vibration test and frequency spectrum analysis,in addition,completes Wavelet denoising and feature extraction of vibration signals,finds the vibration signal singularity.