This paper deals with the influence of impulse generating and measuring system on the measurement of lightning impulsefront time by Fast Fourier Transformation (FFT).
A set of experimental measurement system to the chang process for impulse TIG welding pool width has been established based on contact measurement in front of weld by visual computers.
建立了一套以计算机视觉焊缝正面检测为基础的脉冲tig焊熔池宽度变化过程的实验检测系统。
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A practical calculation method is given. With the parameters of the impulse circuit the wave front and tail and the voltage efficiency can be calculated.