摘 要
研究高度集成化、自動化、多功能的現代化綜合測量儀已成為現代科學技術發展的趨勢。目前，電子技術、計算機技術突飛猛進，文章選用STC89C51單片機芯片作為控制核心，通過對交流信號高速采樣傳感器的應用，完成對電電壓、電流等電參數的測量,討論基于單片機的功率及功率因數的測量問題,給出了實用測量電路,使用一片89C51進行分析,采用RS-232通信方式將采集到的測量數據上傳PC機實現數據分析。并在硬件抗干擾設計基礎上采用軟件抗干擾設計，采用軟件校正，簡化電路，有效提高整個系統的準確性。
關鍵詞：單片機；測量；電參數功率因數
Abstract
The research integration, automated, the multi-purpose modernized synthesis measuring instrument has become the modern science technological development highly the tendency. At present, the electronic technology, the computer technology progress by leaps and bounds, the article selects the STC89C51 monolithic integrated circuit chip to take the control core, through to exchanges the signal high speed sampling sensor's application, completes to electrical parameter and so on electricity voltage, electric current surveys, discusses based on monolithic integrated circuit's power and the power factor survey question, has given the practical metering circuit, uses piece of 89C51 to carry on the analysis, uses the metrical data which the RS-232 mailing address will gather to upload PC machine to realize the data analysis. And uses the software antijamming design in the hardware antijamming design basis, uses the software to adjust, the simplified circuit, enhances overall system's accuracy effectively.
key word: Monolithic integrated circuit; Survey; Electrical parameter power factor
