Control characteristic selection at SDBD plasma unit long-term operation

Lazukin, A. V.; Шурыгин, Д. А.; Krivov, S. A.

doi:10.1109/icieam.2017.8076284

Cited by 1 publication

(1 citation statement)

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“…Motivation of the present work was to report on a novel discharge ignition phenomenon and to review the findings within the framework of the equivalent circuit approach of Pipa et al [45]. For this purpose SDBDs consisting of 0.6 mm thick Al 2 O 3 plates were examined which often serve as dielectric material for SDBDs [47,48]. Compared to SDBDs based on the glass-reinforced epoxy laminate FR-4 [16,17,29,49,50], inorganic dielectrics feature a longer operation time until an electric breakdown occurs [51,52] and are therefore of greater interest for possible applications.…”

Section: Introductionmentioning

confidence: 99%

Expansion of surface barrier discharge scrutinized

Lindner

Pipa²,

Brandenburg³

et al. 2022

Plasma Sources Sci. Technol.

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Developing the fundamentals for the electrical diagnostics of surface dielectric barrier discharges (SDBDs) is of enormous importance for several applications, for example, ﬂow control and gas cleaning. The main challenge is to account for the discharge expansion along the dielectric surface. Typically, a linear expansion with the amplitude of the applied voltage is observed. In this work, we report on a step-wise SDBD expansion along the Al2O3 dielectric surface. More speciﬁc, the discharge occupied a certain area after ignition, which remained constant until the voltage exceeded the critical amplitude VL. This absence of expansion is seen as a linear dependence of the discharge power on the applied voltage and it was additionally conﬁrmed by photographs with long exposure times. This novel phenomenon is more pronounced for thicker dielectrics. It is suggested that the derivative of the charge-voltage characteristics can be used for the determination of all essential parameters of the simplest equivalent circuit of SDBDs. Moreover, it was shown that the derivative of the charge-voltage characteristics for the positive half-cycle of the discharge agrees numerically with the voltage dependence of the reactor capacitance derived from photographs. This agreement between both measurement methods indicates a similar step-wise expansion of the SDBD even if a voltage amplitude above VL is applied.

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