基于ATmega系列單片機的電力檢測設備:摘要：電力檢測設備的精確灝l量及實時傳送對電力監控系統的正常工作有著重要的意義。Atmega系列是AVR 單片機的高檔產品．
其具有高性能、低功耗的微控制器，超強的接口功能及具有自編程能力的程序存儲器，非常適合于需要遠程控制和現場升級的應用領域通過對Atmega系列單片機的設計而實現的電力檢測設備，能夠快速、精確的進行在線測量，并將測量數據以4~20mA的形式實時輸出進行遠程控制，產品滿足當前電力監控系統的需求，具有較大的市場前景，其設計思路也可為其他檢測設備的開發提供一定的參考。
關鍵詞：電力檢測設備：AVR 單片機：PWM ；恒流源

Abstract：The precision and timely transmission of Electronic M easurement Instruments is of great significance tO safe performance of electronic monitoring system．Atmega system is highgrade product of AVR single chip mi crocomputer，which consists of microcontroUer of high performance and low consumption．well—funcdoned interface and program memorizer wi山self-programmed capacity．The system is used in the ~pplied field of distance control and upgrading．The Electronic Measurement system made by Atmega single chip microcomputer can measure and then transmit the data by 4-20mA to distance control in order tO meet．the requirement of electronic monitOring．111e market prospect of the produ~ is brilliant and people can refer tO the design of this product in development of other measurement instruments．
· Key WOrds：Electronic measurement instrument；AVR；PWM ；constant—current sourc