Volume-surface barrier discharge in dried air in three-electrode system fed by impulse high voltage with nanosecond rise time

Spatio-temporal evolution of ion current extracted from pulsed dielectric barrier discharge

“…It should also be noted that the total extracted charge at negative polarity HVdc was 70%-250% higher than at positive polarity (table 1). This fact is confirmed by other studies of ion current extraction in multielectrode SDBD configurations [34,35], as well as for corona discharge [38].…”

“…An increase in the field strength E led to a rise in the number of particles extracted from the discharge plasma and so an increase of the extracted current. This dependence I = f (E) is well known [34,35] at AC voltage of high frequency for a similar electrode configuration. Altering the gap length L in our experimental setup (figure 1) at a constant value of HVdc made it possible to change the electric field E with an unchanged pulse voltage amplitude.…”

“…The more portions of the charge are injected into the gap per unit time, the greater the field distortion became. Such distortion can lead to a deviation of the linear dependence of the current on the frequency, which was noted earlier by many authors [20,29,35]. To verify the influence and scale of this effect and also maintain the coherence of the experiment, a computer simulation was carried out.…”

“…In most of the works, researchers used an integral characteristic of ion flow to the extracting electrode-the total ion current. The ion flux to auxiliary electrode depends on the applied voltage and polarity, electrode gap length, a DBD feeding voltage waveform, gas condition, and other parameters [5,20,34,35]. There are currently no data on the spacetime distribution of ions carried out from SDBD plasma by external electric field, however, there are several works with the results of the spatial ion current distribution for AC-voltage SDBD and corona discharge.…”

Structure pattern peculiarities and electrical characteristics of surface dielectric barrier discharge in air driven by impulse and sine high voltage

“…These results are a direct consequence of the τ imp influence on the SDBD plasma formation. The I d strong dependence on U d for a three-electrode arrangement has been shown in [7]. The character of τ imp influence on I d varies with different U d polarity as it is seen in Fig.6 B.…”