Diffuse DBD in Atmospheric Air at Different Applied Pulse Widths

Shershunova, E. A.; Malashin, M. V.; Moshkunov, S. I.; Khomich, V. Yu.

doi:10.14311/ap.2015.55.0059

Cited by 16 publications

(5 citation statements)

References 7 publications

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“…When V GS is increased from 1.1 to 2.7 kV, t ON increases from 2.3 to 2.64 µs and I ONm increases from 131 to 148 µA. The variation of peak-current with t pw is illustrated in figure 6(b), where it can be seen that both I ONm and I OFFm increase nonlinearly as t pw increases, but the rate of increase decreases, and I ONm is less than I OFFm ; a similar result can be seen in [23]. Moreover, t ON and t re are divided into two parts based on whether they are equal to t pw (colored and non-colored areas).…”

Section: The Influence Of Experimental Conditions On the Switching Pr...supporting

confidence: 68%

A microplasma device and its switching behavior triggered by modulated pulse signal

Chen

Yaogong

et al. 2023

J. Phys. D: Appl. Phys.

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Since the physical and electrical properties of plasmas are similar to the semiconductordevice, the plasma devices are proposed to be good candidates for switching controlleddevices while applied in harsh environments. In the proposed paper, a microplasma devicewith dielectric barrier structure constructed with three electrodes (two driven electrodes andone trigger electrode) is fabricated, and the electrical characteristics of the proposed deviceare investigated in 2 kPa of argon. From the experimental results, a stable conducting currentis obtained through two driven electrodes in the device due to gas discharge, since thehysteresis characteristic of discharge plasmas (discharge is still maintained when drivenvoltage is below the breakdown voltage of the gas because of the existence of residual chargeparticles), the device can be switched from OFF to ON state through pre-discharge by a pulseapplied on the trigger electrode. While in the device ON, this trigger voltage attracts channelcharged particles to the surface of the dielectric layer, quenching the discharge plasma currentand the device can be switched from ON to OFF state. The trigger pulse that makes thedevice switch successfully is from single to continuous up to 80 kHz. The influence of pulseparameters on the switching process is also investigated, pulse amplitude and pulse width arefound to be important to whether the device can be switched ON or OFF, peak current afterswitched, and the response speed of switching ON current, however, these switchingparameters are barely affected by the rising and falling time of the pulse. The results aresignificant for the application of microplasma switching devices.

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Section: The Influence Of Experimental Conditions On the Switching Pr...supporting

confidence: 68%

A microplasma device and its switching behavior triggered by modulated pulse signal

Chen

Yaogong

et al. 2023

J. Phys. D: Appl. Phys.

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“…According to the collected discharge parameters and the calculated accumulated discharge energy results, it can be seen from figure 10 that since the rising edges of the five pulse voltage waveforms are all 100 ns, it leads to the same rise edge and the same maximum value of the first positive current peak in the five current waveforms [33]. However, the difference is that when the changing range of the pulse width is less than 200 ns, with the extension of the pulse width, the decreasing delay of the positive current main peak increases.…”

Section: Effect Of Pulse Width On Blend Gas Concentrationmentioning

confidence: 99%

Experimental investigation on DBD plasma reforming hydrocarbon blends

Xu¹,

Wu²,

Song³

et al. 2021

Plasma Sci. Technol.

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To improve the ‘detonation-supporting’ performance of fuel-rich catalytic combustion products, DBD plasma, stimulated by adjustable nanosecond pulse power supply, was used to further regulate the components and concentrations of the hydrocarbon blends. In this paper, the parameters including load voltage, frequency, rising (falling) edge, pulse width and feeding flow rate were changed respectively, and the corresponding concentration and proportion change of the components in blend gas were investigated. According to the experiment result, it was found that when the discharge frequency is low, the plasma mainly promotes the transformation of light gaseous substances, while it mainly promotes the conversion to heavy hydrocarbons when the frequency is larger. Increasing load voltage will strengthen this trend. The controlling and reforming effect of plasma on the blend gas will decrease with the increase of voltage rising (falling) edge and the feeding flow rate. The regulation effect will be strengthened with the increase of pulse width under 200 ns. With the increase of discharge intensity, the ‘carbon’ settles on the walls of the reactor, which will change the dielectric constant, leading to the loss of control of the discharge.

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“…Naturally, research on DBD started with AC sinusoidal high voltage sources. Due to progress in power electronics, the experimental apparatus opportunities become broader. When applying high voltage across electrodes with rise time close to specific time of discharge processes development it is possible to talk about its critical influence onto characteristics of produced plasma.…”

Section: Introductionmentioning

confidence: 99%

Optical analysis of pulse barrier discharge on initiation stages in air

Khomich

Malashin

2018

Plasma Processes & Polymers

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Experimental results on pulsed dielectric barrier discharge (DBD) initiation stages in air are given in the present work. Pictures of discharge afterglow and current traces from a sectioned electrode were collected and analyzed. The qualitative model of volume nanosecond DBD formation based on combination of well-known model of self-sustained gas discharge development together with surface charge spreading from electroscopic data is proposed. Represented qualitative explanation of observed phenomena involve summarized conclusions from cross-correlation spectroscopy researches, well-known streamer theory, model of self-sustained gas discharge development, and dielectric surface charge spreading behavior from electroscopic measurements.

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Diffuse DBD in Atmospheric Air at Different Applied Pulse Widths

Cited by 16 publications

References 7 publications

A microplasma device and its switching behavior triggered by modulated pulse signal

A microplasma device and its switching behavior triggered by modulated pulse signal

Experimental investigation on DBD plasma reforming hydrocarbon blends

Optical analysis of pulse barrier discharge on initiation stages in air

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