Inception voltage of positive streamer and its length on PMMA in air

Chiba, M.; Kumada, Akiko; Hidaka, Kunihiko

doi:10.1109/94.983895

Cited by 15 publications

(15 citation statements)

References 5 publications

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“…For example, fast imaging has been used to analyse the spatiotemporal discharge characteristics in the glow [23][24][25][26][27] and non-diffuse modes [28,29]. These studies build upon research utilizing Pockels effect [30] and dust figures [31] to investigate the factors influencing the structure of the discharge [32]. Time-resolved spectroscopy has also been used to identify the behaviour of specific excited species within the plasma [33].…”

Section: Introductionmentioning

confidence: 99%

Plasma propagation of a 13.56 MHz asymmetric surface barrier discharge in atmospheric pressure air

Dedrick¹,

Boswell²,

Audier³

et al. 2011

J. Phys. D: Appl. Phys.

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The propagation of an rf asymmetric surface barrier discharge in atmospheric pressure air has been investigated. Measurements of the pulse-modulated 13.56 MHz voltage and current together with ICCD images of the plasma were recorded to study the visible plasma structure with respect to the rf pulses, time within the pulses and the rf waveforms. When exposing images over full rf pulses, which comprise over 150 oscillations of the applied voltage, clearly defined filamentary structures are observed indicating a strong memory effect. The discharge intensity decreases exponentially with distance from the electrode edge, and the average propagation length increases linearly with the applied voltage. Similar to some lower frequency asymmetric surface dielectric barrier discharges, two distinct breakdown events occur during one period of the voltage waveform. The number of filaments is found to be the same for both breakdown events, and collective effects are observed in both discharges.

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Section: Introductionmentioning

confidence: 99%

Plasma propagation of a 13.56 MHz asymmetric surface barrier discharge in atmospheric pressure air

Dedrick¹,

Boswell²,

Audier³

et al. 2011

J. Phys. D: Appl. Phys.

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“…The plasma sheet regime shows simultaneous characteristics of bipolar corona and other discharge regimes with the signature of surface discharges (discharges over insulating surfaces). This last kind of discharge produces in most cases a diffuse discharge or filaments consisting of positive streamers skimming the surface (Chiba et al 2002). The surface discharges have been proposed to be of the same nature as discharges propagating in bulk gases.…”

Section: Introductionmentioning

confidence: 99%

Discharge characteristics of plasma sheet actuators

Sosa¹,

Artana²,

Grondona³

et al. 2007

J. Phys. D: Appl. Phys.

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The electrical characteristics of a plasma sheet device used for subsonic airflow control are studied in this paper. Experiments are undertaken with a two-wire asymmetrical (different diameters, opposite polarity) electrode configuration connected to dc high voltage sources in the presence of a dielectric plate and under different gases (dry air, nitrogen and oxygen). For large distances electrode-plates it has been found that the discharge current consists of a purely dc component. The proximity of the plate reduces notably this dc current component until a limit situation for which the electrodes practically lay on the plate and a current pulsed regime is superimposed on the dc (small) component, thus establishing a plasma sheet regime. This regime could be reached only when the small wire was positive. This work establishes that the pulsed regime may be associated with a succession of positive streamers (cathode directed) which formation is promoted by different parameters of the gas and surface characteristics (thresholds of photoionization and photoemission, charge deposition,...). The dc component seems to be produced by a small number of electrons originated in the ionization region of the negative corona that are amplified in the ionization region of the positive corona. The charged particles produced during the streamer propagation could contribute appreciably to the ion momentum transfer to the gas. This transfer should be due very likely to the drift of the charged species present in the streamer channel during the streamer collapsing phase. The source of momentum transfer associated with the dc current would always persist with a magnitude that depends on the intensity of this current.

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“…The relation between L and the inception voltage V i has been measured for 2-10-mm thick PMMA pipes using the Lichtenberg figure technique, as shown in Fig. 17, and it has been reported that the propagation length increases linearly with V i at a rate of 300 V/mm [10]. Figure 18 shows the relation between L and V i extracted from Tables I, II, and III.…”

Section: Inception Voltage and Potential Gradient Of The Positive Strmentioning

confidence: 97%

“…In Ref. [10], a low inductance power supply, in which a 2000-pF capacitance is added in parallel to the discharge gap, was used. When a surface discharge develops on a thin insulator (large capacitance insulator), a large pulse current flows, and the voltage drops because the pulse current is too large to be neglected.…”

Section: Inception Voltage and Potential Gradient Of The Positive Strmentioning

confidence: 99%

“…On the other hand, using the Lichtenberg figure technique, many researchers have investigated the development characteristics of surface discharges [8][9][10]. It was found that the length, L, of a surface streamer is controlled by many factors including the capacitance of the insulator and the instantaneous applied voltage at its inception [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Propagation characteristics of a positive surface streamer

Kumada

Fukuda

Kamada

et al. 2006

IEEJ Transactions Elec Engng

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The potential distribution of a developing positive surface streamer was measured by the Pockels effect. The transient potential distribution along a linear path was measured at minimum resolutions of 20 µm and 2 ns. Additionally, velocity of a streamer, average electric field along a streamer, and the developing length were measured while changing the insulator thickness from 0.8 to 5.0 mm. The potential along a positive surface streamer decreases linearly with the distance from the high-potential electrode, and its gradient is about 500-650 V/mm, which is independent of the inception voltage and the insulator thickness.

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Inception voltage of positive streamer and its length on PMMA in air

Cited by 15 publications

References 5 publications

Plasma propagation of a 13.56 MHz asymmetric surface barrier discharge in atmospheric pressure air

Plasma propagation of a 13.56 MHz asymmetric surface barrier discharge in atmospheric pressure air

Discharge characteristics of plasma sheet actuators

Propagation characteristics of a positive surface streamer

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