基于虚拟仪器的程控信号源远程控制

为了实现对GPIB程控信号源远程控制的目的,组建一个虚拟测试系统。该测试系统,采用虚拟仪器技术,以LabWindows/CVI作为软件开发平台,以GPIB标准总线仪器与计算机作为硬件平台,使用装有GPIB接口卡计算机,将计算机与程控信号源通过总线连接起来,组成程控信号源为主的虚拟仪器模块,仪器模块的硬件功能通过软件开发实现;采用VISA方式编程,直接用VISA语句编写程控仪器指令,脱离仪器驱动程序,对GPIB总线设备可以相互兼容使用。该测试系统实现了对程控信号源的数据远程收发和功能设置。

Remote control of GPIB bus program-controlled signal generator based on LabWindows/CVI

According to the demands of the remote control of GPIB program-controlled signal generator,a virtual testing system was established. With the virtual instrument technology,the testing system uses labWindows/CVI as software develop-ment platform and GPIB bus instrument and computer as hardware platform. The computer with GPIB interface card and the pro-gram-controlled signal generator are connected by GPIB bus,and they composes the virtual instrument module,whose hardware functions are realized by software. VISA is adopted to programme and compile the instructions for the progtam-control instru-ment. It is compatible with the GPIB devices. The testing system realized the remote transceiving of data from the program-con-trolled signal generator and function set.