虚拟信号发生器基于声卡的设计与实现

Virtual Signal Generator Based On Sound Card Was Designed And Developed

本文介绍了虚拟仪器的特点与组成,虚拟仪器软件开发工具Labview。介绍了用普通PC机的声卡代替价格昂贵的商用数据卡,设计的一款虚拟信号发生器,该系统利用软件产生波形信号。

With the introduction of the characteristics of virtual instrument and based on the development tool of LabviewoA virtual signal generator is designed replacing the high - cost commercial data card with the low - cost PC sound card. The system applies waveform signal by software and A/D function of sound card to conduct signal output within the scope of audio frequency.