The construction of capacitive voltage divide for measuring ultrafast pulse voltage

摘要: The problem of pulse voltage measurements in the nanoseconds range has become great importance with ongoing problems related to construction fusion generators as well simulations electromagnetic pulses atmospheric nuclear explosion. Ultrafast can be measured by capacitive divider. that arises ultrafast occurrence is inductivity. Under conditions increaserate, conductors about few centimeters should regarded Therefore, divider treated an equivalent RLC circuit. ohmic resistance R circuit originates from characteristic impedance (either 50 Ω or 75 Ω) and, depending on its design, it introduce additional parasite aim this paper consider and analyze constructive solutions for measuring occurrence. Three types will constructed purpose. high-voltage capacitor each gas (in order avoid both electrostatic electrodynamic influence measurement accuracy). variations between made low-voltage capacitor. designed capacitors be: 1 — shape 10 mica connected a parallel discrete ending resistor 2 form trimmer Ω, 3 continual waveguide (L=0). response dividers such manner, compared corresponding obtained numerical simulations.