摘要
本文以AT89C52单片机为控制核心,设计了一种能同时测量工频交流电的电压、电流有效值,以及有功功率、无功功率和功率因数的高精度智能化数字式多用表。克服了传统仪器的缺点,实现各种测量功能,大大提高了系统的智能化程度,通过大量实验表明,系统所测结果精度高、安全可靠。
This paper designed one kind of intellectualization digital power RMS DMM based on AT89C51 microcomputer. The hardware circuit and software design of system are described in detail.This system can realize each kind of survey function, greatly enhanced the system intellectualized degree, and the system measured that the accuracy of result is very high.
出处
《微计算机信息》
北大核心
2008年第4期153-154,228,共3页
Control & Automation
关键词
智能化
高精度
单片机
有效值
多用表
Intellectualization
High accuracy
Single-chip microcomputer
RMS
DMM
