This paper deals with the influence of impulse generating and measuring system on the measurement of lightning impulse front time by Fast Fourier Transformation (FFT).
本文应用快速付立叶变换（FFT）计算分析了冲击发生器与分压器之间的相互作用对全波波头时间测量的影响。
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。
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.
文中给出实用计算法，以便根据冲击回路参数估算操作波的波头、波尾和电压效率。
There is not direct mathematical relations among virtual front time, virtual tail time and theoretical front time, theoretical tail time of lightning impulse.
雷电波的视在波头时间和视在波尾时间与理论波头时间和理论波尾时间没有直接的数学关系。
There is not direct mathematical relations among virtual front time, virtual tail time and theoretical front time, theoretical tail time of lightning impulse.
雷电波的视在波头时间和视在波尾时间与理论波头时间和理论波尾时间没有直接的数学关系。
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