Measurement of Voltage Rising Part due to Gap Discharge in Air using Distributed Constant Line System
Ken Kawamata, Shigeki Minegishi, Akira Haga, Risaburô Sato · 1998
Very fast voltage rise curve due to gap discharge was considered in time domain. The measurement system consists of a distributed constant line system and a coaxial electrode, because the voltage transients are very rapid and fluctuations are complicated The coaxial cables were used as distributed constant lines. The coaxial electrode has matched impedance for a characteristic impedance of the coaxial cables. The atmosphere around the coaxial electrode is normal air. This distributed constant line experimental system enables to measure the high speed and high voltage transients of about 100 ps. As a consequence of the experiment using this measurement system, the voltage rise time was slown down from about 100 ps to about 400 ps due to increasing of source voltage from 510 V to 1450 V.