• 제목, 요약, 키워드: Electrostatics

검색결과 39건 처리시간 0.031초

MODERN ELECTROSTATICS FOR HIGH-TECHNOLOGIES

  • Masuda, Senichi
    • 대한전기학회:학술대회논문집
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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.

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대형 잉크젯 플로터의 워치별 정전기 해석 및 방지 (Electrostatics Analysis and Prevention according to each position of a Large Type Inkjet Plotter)

  • 윤신용;최근수;조영래;백수현
    • 대한전기학회:학술대회논문집
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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.

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실리콘 고무의 면적 변화에 따른 정전기 대전 특성 (Electrostatic Electrification Properties due to Square of Silicone Rubber)

  • Lee, Sung-Ill
    • 한국전기전자재료학회논문지
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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.

유한요소법을 이용한 산업용 잉크젯 플로터의 정전기 해석과 대책 (Protection and Electrostatic Analysis of the Industrial Type Inkjet Plotter using FEM)

  • 윤신용;최근수;김용;백수현
    • 대한전기학회:학술대회논문집
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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.

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산업용 잉크젯 플로터의 정전기 해석 및 차폐 (Electrostatic Analysis and Protection of the Industrial Type Inkjet Plotter)

  • 최근수;백수현
    • 대한전기학회논문지:전기기기및에너지변환시스템부문B
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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.

환경변화에 의한 열 압착용 실리콘 고무의 정전기 대전 특성에 관한 연구 (A Study on Electrostatic Electrification Properties of Silicone Rubber for Thermal Bonding According to the Variation of Environment)

  • 이성일
    • 한국전기전자재료학회논문지
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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.

중학교 과학 교과서의 정전기 관련 실험에 대한 분석 및 제안 (An Analysis of Experiments Related to Electrostatics in Secondary School Textbooks and a Proposal of Experiments for Better Understanding of Electrostatics)

  • 현동걸;조헌국
    • 새물리
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    • v.67 no.8
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    • pp.975-990
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    • 2017
  • 이 연구는 실험을 기반으로 정전기 현상을 이해하고 추론할 수 있도록 중학교 과학 교과서의 정전기 관련 실험을 분석하고, 이를 개선하기 위한 새로운 방법을 제안하는 것을 목적으로 한다. 이에 현행 중학교 3학년 과학 교과서 5종을 선정하여, 정전기에 관련된 실험을 마찰전기, 접촉전기, 정전기 유도, 정전기 방전으로 범주화하였고 실험에서 나타나는 문제점을 개선하고자 교과서에 주로 나타나는 상황인 마찰전기, 대전, 정전기력, 정전기 유도, 정전기 방전 등을 보다 쉽게 이해할 수 있는 새로운 실험 방안을 제시하였다. 이를 통해 대전된 전하의 종류, 전하량 보존, 전기력, 유도전하, 정전기 방전 등에 관련된 미시적인 현상들을 쉽게 추론할 수 있도록 하였다.

중량변화에 의한 폴리에스터 레이온 부직포의 정전기 대전 완화특성 (Electrostatic Electrification Relaxation Properties of Polyester Rayon Non-woven Fabric due to Weight Variation)

  • 이성일;박용순
    • 한국전기전자재료학회논문지
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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.

반무한 전기 쌍극자층에 의한 정전계 해석과 앙페르 법칙에 자계와 커패시터의 누설 전계간의 이중성 유사 관계 (Electrostatic field of the semi-infinite electric dipole layer as (a) dual analogy to the Ampere's law (b) capacitor's fringing field)

  • 조영기;;손혁우;김현덕;유형석
    • 전기학회논문지
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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.