Measurement and control for a repetitive nanosecond-pulse breakdown experiment in polymer films

Abstract

In order to perform data acquisition and avoid unwanted over-current damage to the power supply, a convenient and real-time method of experimentally investigating repetitive nanosecond-pulse breakdown in polymer dielectric samples is presented. The measurement-acquisition and control system not only records breakdown voltage and current, and time-to-breakdown duration, but also provides a real-time power-off protection for the power supply. Furthermore, the number of applied pulses can be calculated by the product of the time-to-breakdown duration and repetition rate. When the measured time-to-breakdown duration error is taken into account, the repetition rate of applied nanosecond-pulses should be below 40 kHz. In addition, some experimental data on repetitive nanosecond-pulse breakdown of polymer films are presented and discussed.

Discharge Characteristics of SF6in a Non-Uniform Electric Field Under Repetitive Nanosecond Pulses

“…A protective shut-off circuit is adopted in the measurement system to protect the power supply from the consecutive over currents [23] . Once a discharge is detected by the Agilent oscilloscope in the experiment, it will send a trigger impulse signal to the protective circuit and the output signal of the circuit will be sent accordingly to the source as a standard control impulse signal, which can shut off the power source accurately.…”

Nanosecond Repetitively Pulsed Dielectric Barrier Discharge in Air at Atmospheric Pressure

“…It is known that all of the local physical and chemical processes take place in these micro-discharges [1,3] , and then the DBD requests a relatively low instantaneous energy input [1] . With the development of switch and unit technology, pulsed power generators with moderate power are used for industrial applications [5,6] . These applications are involved in ozone formation, vacuum ultraviolet radiation generation, surface modification and deposition, plasma jet generation, medical sterilization and so on [7∼15] .…”