基于虚拟仪器的某型高度表测试系统软件研制

Development of Altimeter Testing System Software Based on Virtual Instrument

为了研制针对某型高度表的高精度测试系统,采用数字采集技术、综合虚拟仪器技术和自动化测试技术对测试系统进行设计。在基于数字采集卡和数字化仪的硬件电路的基础上,通过LabWindows/CVI程序控制数据采集和自动化测试流程的方法,研制一套基于虚拟仪器技术的无线电高度表测试系统软件。结果表明,采用数字采集技术和虚拟仪器技术相结合的方法,提高了测试设备的测量精度。相比传统的测试设备,该测试系统具有较高的精确性、可靠性和可维护性。

Digital acquisition technique, dummy instrument technique and automated testing technique were taken to design a new-style testing system for a certain altimeter system. A new wireless-altimeter testing system was designed based on virtual instruments, the hardware circuit made of a PC-DAQ card and a digitizer, and a method that the Labwindows/CVI program controlled the course of digital acquisition and automated testing. It turns out that the testing accuracy is improved in combination with digital acquisition and virtual instrument. Compared to the traditional testing systems, this testing system has higher accuracy, better reliability and maintainability.