• Proceedings of the KIEE Conference
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• pp.12-15
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• 1987

The study on Electrostatics represents the first scientific interest of human being on electrical phenomena, and it led to enormous progress of electrical and electronic science and engineering up to the current levels. Electrostatics, however, has been long forgotten in the stream of this history as a tribial minor field. Interesting enough, this minor sector has regained recently its new life, in particular in the area of high-technologies, and Electrostatics is going to become one of the most important field in the future of electrical and electronics engineerings. It is impossible to cover the entire trend of this emerging field in a limited space, so that spot lights shall be focused on several important topics in this paper.

• Proceedings of the KIEE Conference
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• pp.116-119
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• 2004

According to industrial development, all fields using chemical instrument and material are generated an electrostatics. This paper is represented the electrostatics distribution analysis of industrial type Inkjet plotter. In order to such experiment, an electrostatics for each portions of plotter(OJ-62) are measured by electrostatic measurement. Based on these, the big large position of electrostatics was analyzed by finite element method(Maxwell-2D), Here it is showed an electrostatic inducement and electric charge theory required.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.25 no.9
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• pp.732-737
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• 2012

This study made a specimen (contact surface size: $45\;mm{\times}0.02\;mm{\times}45{\sim}55\;mm$) with silicon rubber for low voltage cable with 50 phr silica filler. The electrification voltage of electrostatics were measured for different sizes of contact surface with the applied voltage of 10kV and the environmental settings of temperature ($25{\sim}40^{\circ}C$) and humidity (40~80%). The following conclusions were made. The electrification voltage of electrostatics decreased as the humidity increased. The electrification voltage of electrostatics increased as the temperature increased. The larger the surface size, the higher the electrification voltage of electrostatics. The property of the material had more effect on the relaxation time than the humidity.

• Proceedings of the KIEE Conference
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• pp.1496-1499
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• 2005

This paper was represented an electrostatics distribution analysis using FEM(finite element method) with industrial type Inkjet plotter. Here, we know electronic value with each system position by experiment. these were decreased by discharge through earth and electricity shielding. According to industrial development, all fields using chemical instrument and material are generated an electrostatics. Based on these, the big large position of electrostatics was obtained metal base of controller, nonconductor fiber between two rubber roller, head controller by moving roller etc., Therefore these were showed an electrostatics generation source and by rubbing and meager profits electric charge.

• The Transactions of the Korean Institute of Electrical Engineers B
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• v.55 no.3
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• pp.159-167
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• 2006

According to industrial development, all fields using chemical instrument and material are generated an electrostatics. Electrostatic problems were very important part to all these components, moving system, printer, clothe machines etc. This paper was represented an analysis of electrostatic electrification by FEM (finite element method) of industrial type Inkjet plotter. Here electrostatics distribution analysis is accomplished by Maxwell-2D. We are showed an electrostatics generation source by rubbing and meager profits of electric charge. It know electronic values with each system position by experiment. These are decreased through earth and electricity shielding. Therefore this paper is proved by the simulation and experiment result.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.23 no.9
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• pp.718-723
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• 2010

In this paper, the following results were obtained from the experiment in which electrification voltage of silicone rubber specimen for thermal bonding were measured under various time, temperature ($10{\sim}40^{\circ}C$), and humidity (30~90%) conditions and different amount of carbon additives (0~15 phr (per hundred resin)). Electrostatics electrification voltage decreased when carbon is up to 10 phr, and there was no electrification voltage in 15 phr condition. The electrostatics electrification voltage did not change over time. When the temperature was constant, electrostatics electrification voltage sharply dropped when the humidity was around 70%. That means, this condition might be appropriate for prevention of charging. The electrification voltage decreased as humidity and amount of carbon increased.

• New Physics: Sae Mulli
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• v.67 no.8
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• pp.975-990
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• 2017

The purpose of this study was to analyze the electrostatic experiments introduced in secondary science textbooks and to propose the effective methods for students to understand the concepts based on the experiments. Thus, five kinds of existing textbooks were selected, and the experiments presented in them were categorized into triboelectricity, contact electrification, electrostatic induction, and electrostatic discharge. This study suggested more simple and effective ways to understand those phenomena so that students can infer the kinds of charges, conservation of charge, electrostatic force, electrostatic induction, electrostatic discharge, and others.

• Bulletin of Food Technology
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• v.22 no.3
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• pp.513-517
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• 2009

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.24 no.12
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• pp.977-981
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• 2011

Non-wovens polyester rayon samples were manufactured, and the electrification properties of electrostatics were measured for three different samples (15 g/$m^2$, 25 g/$m^2$, and 40 g/$m^2$) with the environmental settings of temperature (20~40$^{\circ}C$) and humidity (40~90%). The conclusions are as follows. Heavy sample generated more static electricity when the temperature was constant. The static electricity decreased slowly when the humidity is less than 70%, while it sharply decreased over 70% humidity condition. For non-woven polyester rayon, static charge decreased as temperature and humidity increased. As the weight increased, less time were taken for the electrification voltage to drop to the half.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.61 no.4
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• pp.606-611
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• 2012

The similarity, analogy and equivalence between the phenomenon due to electric and magnetic dipoles have been discussed in the open literature for different situations. Here we are presenting the numerical proof of the trajectory of leakage electric field due to a semi-infinite electric dipole layer in the external periphery and the electric field in the space between oppositely charged surfaces. The result is also valid for the fringing electric field of a parallel plate capacitor. The result is also proved to be a dual of Amp$\grave{e}$re's law in the electrostatics due to a semi-infinite electric dipole layer.