基于Lab VIEW的双通道信号发生器设计与实现

Design and Realization of Two-channel Signal Generator Based on LabVIEW

以虚拟仪器技术为核心,借助于计算机资源并结合高性能数据采集卡等硬件,采用Lab VIEW软件开发平台设计了一款双通道信号发生器.双通道信号发生器通过PCI-6289数据采集卡的D/A通道输出波形信号,可以产生正弦波、方波、三角波、锯齿波、白噪声信号与任意公式波,具有参数设置、功能选择、信号输出时域波形监测与参数存储等功能.实际运行表明,该信号发生器具有功能强大、频带范围宽、界面友好、使用更为方便等优点,避免了传统信号发生器只能产生基本波形的不足,具有良好的应用前景.

With the virtual instrument technology as the core, a two - channel signal generator was designed using the LabVIEW software development platform with the help of computer resources, high performance data acquisition card and other hardware. The signal generator can produce sine wave, square wave, triangle wave, sawtooth wave, white noise signal and arbitrary formulas wave through the D/A channel of PCI-6289 data acquisition card. The signal generator has functions with parameter settings, function select, output signal waveform monitoring and parameter storage. Practical application shows that the signal generator has features of strong function, wide range of frequency band, friendly interface and more convenient use, etc. It can avoid the shortcomings of the traditional signal generator which can only generate the basic waveform, and can be widely used.