交直流通用型功率测量仪的设计与实现

Design and implementation of AC and DC universal power measuring instrument

交直流通用型功率测量仪以STC15F2K60F2单片机为核心控制器,并采用集成高精度均方根值转换器AD637,有效解决了交直流自动识别、量程自动转换、交流电有效值测量等功率测量的关键技术问题。经测试,系统在10mW^2W的范围内,直流功率测量误差<1%,交流功率测量误差<5%,整机功耗<10mW,具有低成本、低功耗、工作稳定、操作便捷、测量精度高、抗干扰能力强等优点,在仪器仪表、电工电子等领域具有较高的推广价值和广阔的应用前景。

Ac/dc universal power measuring instrument takes STC15F2K60F2 MCU as its core controller,and adopts integrated high-precision root mean square value converter AD637.Its function is effectively solve the key technical problems of ac/dc automatic identification,automatic range conversion,ac effective value measurement.After the test,the system within the scope of the 10 mw^2 w,dc power measurement error<1%,ac power measurement error<5%,the overall power consumption<10 mw.It has low cost,low power consumption,stable operation,convenient operation,high measurement precision and strong anti-jamming capability.In areas such as instrument,electrical and electronic is of high popularization value and broad application prospects.