基于LabVIEW的虚拟信号发生器的设计与实现  

Design and Realization of Virtual Signal Generator Based on LabVIEW

作　　者：张达[1] 王冠男[1] 

机构地区：[1]哈尔滨理工大学,哈尔滨150080

出　　处：《煤矿机械》2015年第5期273-275,共3页Coal Mine Machinery

摘　　要：介绍一种基于Lab VIEW的虚拟函数信号发生器,该仪器功能完善,实用性强、便捷性好。能够产生实验室常用的基本波形、电子测试中常用的扫频波形,并且可以通过输入公式产生特殊信号波形。信号的频率、幅值等参数可按需调节。再配合数据采集卡及必要的外部放大电路等硬件设备,可实现虚拟信号的实际外部输出。将实际产生信号接入数字示波器检验后,与虚拟波形具有较好的一致性。该仪器稳定、灵活、可靠,可用于实验室及电子测量等领域。Introduces a virtual signal generator based on the LabVIEW, it＇s fully functional, practical and convenient. The generator is not only able to produce basic function waves which are common in the laboratory, but also can produce special waves which are essential in the electronic tests, like the sweeping？frequency？wave and arbitrary waveform. Parameters of this system can be changed according to the requirement. What＇s more, connecting with DAQ （Data Acquisition Card） and necessary external amplifier circuit, the actual signal output is realized. After putting the output signal into digital oscilloscope, we find wave-display is consistent with the virtual signal. The equipment is stable, flexible and reliable, can be used in the laboratory and electronic measurement, etc.

关 键 词：虚拟仪器 函数信号发生器 LABVIEW 数据采集卡 

分 类 号：TM935[电气工程—电力电子与电力传动] TP39[自动化与计算机技术—计算机应用技术]