虚拟仪器技术在学生课外科技活动中的应用

Application of Virtual Instrument Technology in Students'Extra-curricular Science and Technology Activities

本文介绍了虚拟仪器的概念,结合计算机声卡的特点,选择计算机声卡为硬件支持,将虚拟仪器技术应用于学生课外科技活动,设计了一种信号发生器,在音频范围内实现了正弦信号的双通道输出。

This paper introduced the concept of virtual instruments. Combined the characteristics of the computer sound card and chose it as hardware, the paper proposed that the virtual instrument technology can be applied in students＂ extra - curricular science and technology activities. The paper designed a signal generator which has the sine signal dual - channel output within the framework of the audio signal.