Levitação magnética

Levitação magnética, maglev (do inglês magnetic levitation) ou suspensão magnética é um método pelo qual um objeto é suspenso sem um suporte, apenas com o uso de campos magnéticos. Força magnética é usada para neutralizar os efeitos da aceleração gravitacional e quaisquer outras acelerações.

As duas questões principais envolvidas na levitação magnética são força de elevação: fornecendo uma força ascendente suficiente para neutralizar a gravidade, e estabilidade: assegurando que o sistema não deslize espontaneamente ou vire para uma configuração na qual a elevação é neutralizada.

Levitação magnética é usada para trens maglev, rolamentos magnéticos e para fins de exibição de produtos.

Sustentação

Um supercondutor levitando um ímã permanente.

Materiais e sistemas magnéticos são hábeis ​​para atrair ou pressionar outros para além ou em conjunto com uma força dependente da intensidade do campo magnético e da área dos magnetos. Como exemplo, o mais simples levitador seria um simples dipolo magnético posicionado dentro do campo magnético de um outro dipolo magnético, orientados pelos pólos, virados um para o outro, de modo que a força entre os magnetos repele os dois magnetos.[1]

Referências

  1. ↑ calculator for force between two disc magnets (retrieved April 16, 2014)

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