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Master's Dissertation
DOI
10.11606/D.54.1989.tde-09042014-110644
Document
Author
Full name
Aldo Eloizo Job
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1989
Supervisor
Committee
Giacometti, José Alberto (President)
Nascimento, Otaciro Rangel
Yoshida, Makoto
Title in Portuguese
Propriedades elétricas da descarga corona obtida com geometrias do tipo ponta e plano
Keywords in Portuguese
Corrente iônica
Descarga corona
Eletrostática
Abstract in Portuguese
Usando geometrias do tipo ponta e plano estudou-se as características elétricas da descarga corona positiva e negativa. Mediram-se as distribuições da densidade de corrente elétrica e do campo elétrico sobre o plano coletor dos íons. São discutidos os resultados obtidos para o sistema ponta planos e para o sistema em que o campo elétrico externo é aplicado através de uma placa adicional colocada perto da ponta. Neste último caso os resultados são interpretados com um modelo teórico que supõe que os íons se movem direção perpendicular entre as placas, sob a ação de um campo constante e lateralmente sob o campo de repulsão da carga espacial.
Title in English
Electrical properties of corona discharge in point-to-plane geometry
Keywords in English
Corona discharge
Electrostatics
Ionic current
Abstract in English
Electric characteristics of a positive and negative corona discharge were studied for geometries of the type point and plane. The electric current density and the electric field distributions on the collector plane were measured. We discuss the results obtained with the point and plane geometry and with the geometry were a external electric field is applied by means of an additional metallic plate fixed near the point. For the latter geometry the results were interpreted by using a theoretical model in which it is assumed that the ions drift in the direction perpendicular to the plates under a constant electric field and laterally under the field of the ionic space charge.
 
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AldoEloizoJobM.pdf (3.04 Mbytes)
Publishing Date
2014-04-10
 
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