一种新型交流耐压核查装置的设计

Design of a new verification device for AC voltage

针对智能电能表做耐压测试过程中准确度无法判定的问题,设计了一种以FM3308微处理器为核心的交流耐压核查装置。装置采用模块化设计,包括硬件和软件设计。硬件部分包括电源电路、电压取样电路、计量控制电路、红外通信电路等,软件部分包括主程序流程图和校表流程图。通过标准功率源校验后,耐压核查装置测试数据准确,误差精度高,满足了智能电能表检表的要求和性能。

The verification device for AC voltage based on FM3308 microprocessor has been designed to solve the problem of accuracy in AC voltage by smart electricity meter. This system adopts modular control strategy, the hardware and software system design of the verification device are detail introduced. The designs of hardware parts include power circuit, voltage sampling circuit, measurement control circuit, infrared communications circuit. The designs of software parts include main program flow and calibration flow chart. After verification by the standard power source, experimental data of verification device is accurate, high error precision, meet the smart electricity meter request and performance.