摘要
对电网电压与电流相位测量的接口电路进行了设计,分析了功率因数的测量原理,提出了基于单片机AT89S51的硬件和软件设计方法。实际应用表明,该记录仪实现了功率因数的数字显示和自动记录。
The interface circuit for measuring the voltage and current phase of power network is designed. The measurement principle of the power factor is analyzed. The hardware and software design methods based on the microprocessor AT89S51 are put forward. Practical applications show this instrument has realized digital display and automatic record for the power factor.
出处
《仪表技术》
2009年第12期6-7,10,共3页
Instrumentation Technology
关键词
接口电路
相位
功率因数
单片机
测量
interface circuit
phase
power factor
MCU
measurement
