一种低成本的函数发生器设计与实现技术

虚拟仪器技术把计算机强大的计算处理能力和仪器硬件的测量控制能力结合起来，在计算机的主导下实现信号的采集处理和表达。文章介绍了一种基于虚拟仪器的函数发生器的实现技术，借助计算机声卡实现了波形、频率、幅度、相位可调的双通道函数发生器。这种方法成本低、波形产生和使用方便，可用于教学和实验。

An Implementation Technique of Low Cost Function Generator

The Virtual Instrument combines the powerful processing ability of computer with measurement and controlling ability of instrument hardware,implementing its acquisition,processing and presentation according to computer.An implementation method of signal generator based on virtual instrument was introduced,which realizing A dual channel function generator leverage off the soundcard of computer give adjusting the waveform,frequency,amplitude and phase,this method is low cost,easy to produce and use,and can be...