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介绍了基于单片机航空交流电参数测试仪的系统设计。以Silicon Labs公司的C8051F005单片机为核心设计出数据采集板,通过RS-232串口与上位机通讯。运用Lab Windows/CVI编写的上位机软件实现信号的检测以及波形和数据的显示,给出了测试仪硬件电路的组成和软件流程图。本系统具有硬件结构简单、容易实现和成本低等特点,在实际应用中其稳定性、精确性均能满足客户要求。
The system design based on single-chip microcomputer AC voltage testers is introduced. Data acquisition board is designed with Silicon Labs C8051F005 MCU as the core, communicating with host computer through RS-232 serial port. Using PC software written in LabWindows / CVI to realize the signal detection and waveform and data display, the hardware circuit of the tester and the software flow chart are given. The system has the characteristics of simple hardware structure, easy implementation and low cost. In practical applications, its stability and accuracy can meet customer requirements.