电焊机微机检测系统中的一种新的数值处理方法

A New Digital Processing Method Used in the Micro-processor Welder Testing System

本文对电焊机微型计算机检测系统中对电量的数值计算方法进行了探讨，提出了对交流信号采用傅立叶交换法计算电压、电流、功率和功率因数，较数值积分法更为稳定准确，并介绍了该方法的计算原理。

In this paper, we discuss the calculating method for electric welding machine microcomputer testing and propose that the results yielding from current, voltage power and power factor by Fourier transform are more accurate and stable than by numerical integration. The calculahng priniples are also introduced.