Experimental study on characteristics of nanosecond-pulse

Hui, 姜慧 Jiang; Cheng, 章程 Zhang; Tao, 邵涛 Shao; Xueke, 车学科 Che; Dongdong, 张东东 Zhang; Rong, 徐蓉 Xu; YanPing, 严萍

doi:10.3788/hplpb20122403.0592

Cited by 5 publications

(2 citation statements)

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“…A curve depicting the changes in the external electric field with r for different z values is shown in Fig 11(B) , where the water droplet-covered position is marked by the blue semicircle in the figure. As Fig 11(B) shows, the external electric field amplitude near the high-voltage electrode can reach approximately 150 kV/cm, which is similar to the results reported by Jiang et al [ 27 ]. The external electric field E ex close to the lower end of the high-voltage electrode decreases with increasing z and decreased to 30 kV/cm when z reaches 0.7 mm.…”

Section: Discussionsupporting

confidence: 87%

“…Plasma develops from the internal edge of the high-voltage electrode to the center of the dielectric ring; this is known as an inward discharge. The ground electrode was encapsulated in silica gel to avoid surface flashover [ 26 , 27 ]. In the experiment, the volume of each water droplet was controlled to 1 μL using a micro- sampler with a total capacity of 50 μL.…”

Section: Experimental Equipment and Measurement Systemmentioning

confidence: 99%

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Characteristics of annular surface dielectric barrier discharge with microsecond pulse under water-covered condition

Xu,

Lai,

Qin

et al. 2024

PLoS ONE

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Surface dielectric barrier discharge (SDBD) has wide applications in flow control, wastewater treatment, and biomedicine. The dielectric surface of an SDBD actuator is generally attached to the water droplets during applications. Thus far, only a few studies have been conducted on the effects of water covering the dielectric surface on the discharge characteristics of SDBD. Therefore, the effects of water droplets on the discharge of an SDBD actuator based on a repetitive microsecond pulse power supply were investigated in this study. The results show that a filament micro-discharge channel forms between the light and dark regions at the internal edge of the SDBD high-voltage electrode and develops toward the center of the dielectric surface in the region without water droplet coverage. SDBD in the water-covered region was divided into two stages. This paper compares the electrical characteristics of SDBD with and without water droplet, and explores the electric field distortion effect of water droplet endpoints through 3D simulation.Based on the theories of water droplet polarization and gas discharge, the effects of water droplets on plasma development and surface charge accumulation under water-covered condition were analyzed. The water droplet plays a similar role as a "secondary electrode" during the discharge process.

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Section: Discussionsupporting

confidence: 87%

Section: Experimental Equipment and Measurement Systemmentioning

confidence: 99%

Characteristics of annular surface dielectric barrier discharge with microsecond pulse under water-covered condition

Xu,

Lai,

Qin

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

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Experimental investigation on electrical characteristics and dose measurement of dielectric barrier discharge plasma device used for therapeutic application

Rad

Davani

2017

Review of Scientific Instruments

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In this research, a Dielectric Barrier Discharge (DBD) plasma device operating in air has been made. The electrical characteristics of this device like instantaneous power, dissipated power, and discharge capacitance have been measured. Also, the effects of applied voltage on the dissipated power and discharge capacitance of the device have been investigated. The determination of electrical parameters is important in DBD plasma device used in living tissue treatment for choosing the proper treatment doses and preventing the destructive effects. The non-thermal atmospheric pressure DBD plasma source was applied for studying the acceleration of blood coagulation time, in vitro and wound healing time, in vivo. The citrated blood drops coagulated within 5 s treatment time by DBD plasma. The effects of plasma temperature and electric field on blood coagulation have been studied as an affirmation of the applicability of the constructed device. Also, the effect of constructed DBD plasma on wound healing acceleration has been investigated.

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