一种实用数字式工频有效值测量系统设计  

A Practical Digital RMS Measurement System

作　　者：张海[1] 吴燕萍[1] 

机构地区：[1]山西医科大学,山西太原030001

出　　处：《自动化技术与应用》2009年第8期73-75,79,共4页Techniques of Automation and Applications

摘　　要：本文从实用角度考虑,利用单片机软件功能取代传统工频有效值测量中常用的整流、滤波及过零检测电路。在算法上实现了交叉运算、对称函数表求解等实用有效的数字处理方法。实验测量结果表明:该设计提高了系统的测量精度和可靠性,运算速度大大提高。This paper introduces a digital measurement system for the ac signals. The data processing algorithms are used in the system, such as cross-multiplication and the ladder-shaped area calculation. The traditional bridge r.ectifier, filter and zero-point detection circuit are removed from the system with the result of increasing accuracy and reliability of the system.

关 键 词：单片机应用 接口 工频测量 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]