Experimental analysis of direct current corona discharge

lagăr, A; Diniş, Corina Maria; Popa, Gabriel Nicolae

doi:10.1088/1757-899x/163/1/012035

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…Meanwhile, in positive corona, the positive ions, with a lower mobility than that of negative ions, do not undergo any transformation [23]. As the negative discharge contains both negative ions and electrons, unlike the positive discharge that contains only positive ions [24], charging by negative corona, results in higher charging currents and surface potentials, compared to the positive polarity [25]. Furthermore, the surface potential decays faster for the negative corona polarity [14].…”

Section: Effect Of Corona Polarity On Volume Resistivitymentioning

confidence: 99%

Effect of Polarity on Volume Conductivity of Polymers, Determined by Corona Triode Method

Dhima¹,

Vila²

2018

AMPC

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In this paper, the effect of polarity on the volume conductivity of Kapton and polyethylene (PE), determined using the corona triode method, when the sample current depends linearly on grid potential, was studied. For the determination of volume conductivity, in addition to the analytical method, for the first time, a graphical method is presented as well. According to the experimental results, obtained by both methods, the volume conductivity values of negative corona charged samples were higher than those of the samples charged by positive corona. Considering the different nature of positive and negative coronas, these differences in results are to be expected and are in full accordance with the theoretical considerations as well. On the other hand, the good agreement between the analytical method results and those obtained by the graphical method, indicates high accuracy of the proposed analytical formula. Meanwhile, the satisfying accordance of experimental results with those found by the classical "static" and "dynamic" methods, confirms the accuracy of the corona method, for the determination of volume conductivity of polymers.

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Section: Effect Of Corona Polarity On Volume Resistivitymentioning

confidence: 99%

Effect of Polarity on Volume Conductivity of Polymers, Determined by Corona Triode Method

Dhima¹,

Vila²

2018

AMPC

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A Simplified Method for Quick Calculation of Corona I–V Characteristics of Unipolar Transmission-Line Configurations

Abdel‐Salam

El-Mohandes

El-deen

2020

IEEE Trans. Plasma Sci.

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Understanding the Role of Soft X-ray in Charging Solid-Film and Cellular Electrets

et al. 2022

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Solid-film electrets and cellular electrets are defined as promising insulating dielectric materials containing permanent electrostatic and polarizations. High-performance charging methods are critical for electret transducers. Unlike dielectric barrier discharge (DBD) charging, the soft X-ray charging method, with its strong penetration ability, has been widely used in electrets after packaging and has even been embedded in high-aspect-ratio structures (HARSs). However, the related charging model and the charging effect of the soft X-ray irradiation remain unclear. In this study, the charge carrier migration theory and the one-dimensional electrostatic model were employed to build the soft X-ray charging models. The influence of soft X-ray irradiation under deferent poling voltages was investigated theoretically and experimentally. The conducted space charge measurement based on a pulsed electro-acoustic (PEA) system with a soft X-ray generator revealed that soft X-ray charging can offer higher surface charge densities and piezoelectricity to cellular electrets under the critical poling voltage lower than twice the breakdown voltage.

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Experimental analysis of direct current corona discharge

Cited by 3 publications

References 2 publications

Effect of Polarity on Volume Conductivity of Polymers, Determined by Corona Triode Method

Effect of Polarity on Volume Conductivity of Polymers, Determined by Corona Triode Method

A Simplified Method for Quick Calculation of Corona I–V Characteristics of Unipolar Transmission-Line Configurations

Understanding the Role of Soft X-ray in Charging Solid-Film and Cellular Electrets

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