基于PXI总线便携式万用测试仪的设计

Design of Portable Multifunctional Tester Based on PXI Bus

摘要:

随着电子工业和军事工业的快速发展,对各种各样复杂信号测试的需求日益增多;为了能够满足多信号、多频段、多变量测试的需求,设计一款集成多用表、任意波形发生器、示波器、射频信号源、音频分析仪和频谱分析仪等多种测试仪器功能的高性能便携式万用测试仪;硬件采用PXI总线架构,独立功能模块设计；软件采用分层架构,层次分明且可扩展性强;该仪器体积小、功能强大,满足了现场对多种类型信号同时测试的实际需求,且在很大程度上提高了测试效率。

Abstract:

With the rapid development of electronic and military industry, there is an increasing test need of different kinds of complex signal. In order to meet the need of multi-signal, multi-frequency segment and multi-variable test, a high effective portable multifunctional tester is designed, which integrates many kinds of instrument functions including multimeter, audio analyzer, arbitrary waveform generator, oscillograph, RF signal generator, spectrum analyzer and so on. The hardware frame of the tester is based on PXI bus, and each function module is unattached. The software frame of the tester is layered which is clear and has strong expansibility. The volume of the multifunctional tester is small, but its functions are multiple, it can meet the need of testing different kinds of signal at the same time, and improve test efficiency obviously.