摘要
简要地介绍LabVIEW的结构和特点,并详细地介绍一种基于LabVIEW环境下自行开发的虚拟函数信号发生器。该仪器不但界面友好,而且功能强大、操作简便。经过仿真实验表明,它能够产生实验室常用的正弦波、三角波、方波、锯齿波信号,而且还可以产生白噪声及多频波,并能通过输入公式,产生测试领域的非周期特殊信号。输出波形频率范围宽,具有相关参数可调、同步显示和幅度频谱分析功能。可以完成不同环境下的测量要求。
This paper introduces briefly the structure and characteristics of LabVIEW,and provides a detailed description of the design of a kind of function signal generator based on LabVIEW.This instrument has a friendly interface,powerful function and easy operation.The results of simulated experiments indicate that this virtual function signal generator can generate sine wave,triangle wave,square wave,saw-tooth wave as well as white noise signal and multitone wave.Besides,it can produce non-periodical special signals for test after formula input.It provides a wider range of frequency of waveform output,a function of in-phase display of amplitude frequency spectrum,and the parameters are adjustable.Thus it can possibly meet the various measuring requirements in different situations.
出处
《计算机与现代化》
2008年第5期107-110,共4页
Computer and Modernization
