{"id":80470,"date":"2024-01-14T13:05:53","date_gmt":"2024-01-14T13:05:53","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/voltimetro-tipo-eletrostatico-descricao-e-caracteristicas\/"},"modified":"2024-01-20T09:48:51","modified_gmt":"2024-01-20T09:48:51","slug":"voltimetro-tipo-eletrostatico-descricao-e-caracteristicas","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/voltimetro-tipo-eletrostatico-descricao-e-caracteristicas\/","title":{"rendered":"Volt\u00edmetro tipo eletrost\u00e1tico | Descri\u00e7\u00e3o e caracter\u00edsticas |"},"content":{"rendered":"<h2>Volt\u00edmetro do Tipo Eletrost\u00e1tico: Medindo Voltagens sem Contato<\/h2>\n<p>O volt\u00edmetro do tipo eletrost\u00e1tico se destaca como a \u00fanica ferramenta capaz de medir a voltagem diretamente, ao inv\u00e9s de faz\u00ea-lo por meio dos efeitos da corrente. Essencial no campo da eletricidade, ele \u00e9 usado principalmente para medir potenciais el\u00e9tricos elevados sem necessitar de contato f\u00edsico. Isso evita a transfer\u00eancia de carga eletrost\u00e1tica e a carga do recurso de voltagem.<\/p>\n<p>Esse tipo de volt\u00edmetro funciona atrav\u00e9s da for\u00e7a de atra\u00e7\u00e3o entre duas superf\u00edcies carregadas, que causa a deflex\u00e3o de um ponteiro, calibrado diretamente em volts. Um campo el\u00e9trico est\u00e1tico \u00e9 utilizado para gerar o torque de deflex\u00e3o. A for\u00e7a de atra\u00e7\u00e3o \u00e9 constante, independente da polaridade das superf\u00edcies carregadas, desde que as cargas sejam opostas. Assim, o volt\u00edmetro eletrost\u00e1tico pode medir tens\u00f5es de corrente cont\u00ednua (DC) de qualquer polaridade.<\/p>\n<h2>Outros Tipos de Volt\u00edmetros<\/h2>\n<p>Al\u00e9m do volt\u00edmetro eletrost\u00e1tico, existem diversos outros tipos de voltmeters, cada um com caracter\u00edsticas espec\u00edficas:<\/p>\n<ul>\n<li>Volt\u00edmetro de Bobina M\u00f3vel e \u00cdm\u00e3 Permanente (PMMCV)<\/li>\n<li>Volt\u00edmetro de Ferro M\u00f3vel<\/li>\n<li>Volt\u00edmetro Digital (DVM)<\/li>\n<li>Electrodinam\u00f4metro<\/li>\n<li>Volt\u00edmetro de Tipo Retificador<\/li>\n<li>Volt\u00edmetro de Tipo Indu\u00e7\u00e3o<\/li>\n<\/ul>\n<h2>Analogia Hidr\u00e1ulica do Volt\u00edmetro<\/h2>\n<p>A analogia hidr\u00e1ulica, ou a analogia el\u00e9trico-fluido, \u00e9 uma ferramenta did\u00e1tica amplamente utilizada para representar conceitos de eletricidade. Utilizada especialmente para ensino e para aqueles que t\u00eam dificuldades em entender o funcionamento de circuitos, esta analogia tamb\u00e9m se aplica a problemas de transfer\u00eancia de calor.<\/p>\n<p>Considerando que a corrente el\u00e9trica \u00e9 invis\u00edvel e que os processos em eletr\u00f4nica s\u00e3o muitas vezes dif\u00edceis de demonstrar, os componentes eletr\u00f4nicos s\u00e3o representados por equivalentes hidr\u00e1ulicos. A rela\u00e7\u00e3o entre voltagem e corrente, definida pela Lei de Ohm em dispositivos \u00f4hmicos, \u00e9 an\u00e1loga \u00e0 equa\u00e7\u00e3o de Hagen\u2013Poiseuille, que relaciona fluxo e potencial em seus respectivos sistemas.<\/p>\n<p>Historicamente, a eletricidade (assim como o calor) era entendida como uma esp\u00e9cie de fluido. Por isso, muitos termos el\u00e9tricos, como &#8220;corrente&#8221;, derivam de equivalentes hidr\u00e1ulicos. Na analogia, a voltagem \u00e9 semelhante \u00e0 diferen\u00e7a de press\u00e3o que impulsiona a \u00e1gua atrav\u00e9s de uma mangueira, sendo medida em volts (V). Esta modelo considera que a \u00e1gua flui horizontalmente, ignorando a for\u00e7a da gravidade, tornando o volt\u00edmetro equivalente \u00e0 medi\u00e7\u00e3o de diferen\u00e7a de press\u00e3o.<\/p>\n<p>Essa compreens\u00e3o da eletricidade atrav\u00e9s de analogias hidr\u00e1ulicas n\u00e3o s\u00f3 facilita a compreens\u00e3o dos conceitos b\u00e1sicos, mas tamb\u00e9m ajuda na visualiza\u00e7\u00e3o de processos e intera\u00e7\u00f5es que, de outra forma, permaneceriam abstratos.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/07\/Electrostatic-Type-Voltmeter-description.png\" alt=\"\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/voltmeter\/electrostatic-type-voltmeter\/\">Original Article<\/a>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um volt\u00edmetro eletrost\u00e1tico \u00e9 usado para medir grandes potenciais el\u00e9tricos sem fazer contato f\u00edsico e, portanto, n\u00e3o h\u00e1 transfer\u00eancia de carga eletrost\u00e1tica ou carregamento da fonte de tens\u00e3o.<\/p>\n","protected":false},"author":1,"featured_media":2909,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-80470","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nao-categorizado","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - 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