{"id":76791,"date":"2020-04-04T19:42:31","date_gmt":"2020-04-04T17:42:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/amerikanczy-predlozhili-sobirat-energiyu-dlya-interneta-veshhej-iz-magnitnyh-polej-blizhajshej-elektroprovodki"},"modified":"2020-04-04T19:42:31","modified_gmt":"2020-04-04T17:42:31","slug":"amerikanczy-predlozhili-sobirat-energiyu-dlya-interneta-veshhej-iz-magnitnyh-polej-blizhajshej-elektroprovodki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/amerikanczy-predlozhili-sobirat-energiyu-dlya-interneta-veshhej-iz-magnitnyh-polej-blizhajshej-elektroprovodki","title":{"rendered":"Americanos proponen recolectar energ\u00eda para el Internet de las Cosas a partir de campos magn\u00e9ticos de cables el\u00e9ctricos cercanos","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

El tema de la generaci\u00f3n de electricidad del \"aire\" \u2015 a partir del ruido electromagn\u00e9tico, vibraciones, luz, humedad y mucho m\u00e1s \u2015 interesa tanto a los investigadores civiles como a sus colegas uniformados. Su contribuci\u00f3n a este tema fue realizada por cient\u00edficos<\/a><\/noindex> de la Universidad Estatal de Pensilvania. A partir de los campos magn\u00e9ticos de los cables el\u00e9ctricos cercanos, lograron extraer electricidad con una potencia de varios milivatios, suficiente, por ejemplo, para alimentar directamente un despertador digital.<\/p>\n

\"Americanos<\/p>\n

En un art\u00edculo publicado en la revista Energy & Environmental Science<\/a><\/noindex> los cient\u00edficos informaron sobre los c\u00e1lculos y la fabricaci\u00f3n de convertidores especiales de campos electromagn\u00e9ticos en corriente el\u00e9ctrica. El elemento generador est\u00e1 dise\u00f1ado como una placa delgada multicapa con un im\u00e1n permanente en el extremo libre (el otro extremo de la placa est\u00e1 fijado de manera segura). La placa est\u00e1 compuesta de una capa de piezoel\u00e9ctrico y una capa de material magnetoestrictivo<\/a><\/noindex> (Fe85B5Si10 Metglas).<\/p>\n

El material magnetoestrictivo es interesante porque, al cambiar su estado de magnetizaci\u00f3n, su volumen y dimensiones lineales cambian. El molesto zumbido de las bobinas en las tarjetas gr\u00e1ficas es, por regla general, cambios magnetoestrictivos en los n\u00facleos. En un campo magn\u00e9tico alterno de un cable el\u00e9ctrico con una frecuencia de 50 o 60 Hz, la placa de Metglas comienza a vibrar y deforma la placa de piezoel\u00e9ctrico adherida a ella. En la red conectada a las placas, comienza a fluir corriente.<\/p>\n

\"Americanos<\/p>\n

Sin embargo, el material magnetoestrictivo en combinaci\u00f3n con el piezoel\u00e9ctrico solo genera hasta un 16 % de la electricidad producida por el elemento. La mayor parte de la producci\u00f3n proviene de la oscilaci\u00f3n de un im\u00e1n permanente en un campo electromagn\u00e9tico. Se afirma que la tensi\u00f3n m\u00e1xima en el elemento alcanza los 80 V en un campo de 300 \u00b5T. Pero lo m\u00e1s valioso es que el elemento desarrollado podr\u00eda extraer suficiente energ\u00eda para alimentar directamente un reloj digital en un campo de menos de 50 \u00b5T a una distancia de 20 cm del cableado el\u00e9ctrico.<\/p>\n

<\/center><\/p>\n

Los cient\u00edficos de la Universidad Estatal de Pensilvania llevaron a cabo su investigaci\u00f3n junto con investigadores de Virginia Tech y un grupo del Comando de Desarrollo de Capacidades de Combate del Ej\u00e9rcito de EE. UU.<\/p>\n

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Fuente: 3dnews.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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