作　　者： (耿丹）; (侯俊）; (蒋睿杰）;

机构地区： 上海理工大学光电信息与计算机工程学院,上海200093

出　　处： 《电子测量技术》 2017年第8期198-202,共5页

摘　　要： 现今虚拟仪器技术广泛的应用于检测与控制领域中。为对工业检测中多通道数据进行分析,并判断检测产品是否合格或数据是否由振动等意外情况造成,设计一种以LabVIEW2014为开发平台的虚拟仪器系统。设计中使用创建波形的方法将无时间戳数据转换为含有时间戳的数据,并利用滤波器与功率谱的相关原理,将多通道数据进行分离显示、FIR滤波及功率谱分析。系统测试表明,该系统能直观地显示各个通道数据并能准确反映数据经过滤波和功率谱分析后的效果,满足产品检测中的需求。 Virtual instrument technology has been widely used in the field of measurement and control system. For analysis of multi-channel data in the industrial inspection, and analyze whether the product is qualified or the data results from vibration and other accidents, designed a virtual instrument system on the software development platform LabVIEW2014. It used the method of creating waveform to transform no-timestamp data into timestamp data, and the principles of filter and power spectrum. It can achieve functions of multi-channel data display, wave filtering and power spectral analysis. The test results show that the system can display multi-channel data intuitively and reflect the data after filtering and power spectrum analysis accurately. It can satisfy the requirements of product inspection.

关 键 词： 多通道 滤波 功率谱