{"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\/cs\/blog\/news\/amerikanczy-predlozhili-sobirat-energiyu-dlya-interneta-veshhej-iz-magnitnyh-polej-blizhajshej-elektroprovodki","title":{"rendered":"Ameri\u010dan\u00e9 navrhli, aby se energie pro Internet v\u011bc\u00ed z\u00edsk\u00e1vala z magnetick\u00fdch pol\u00ed bl\u00edzk\u00fdch elektrick\u00fdch vodi\u010d\u016f","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

T\u00e9ma z\u00edsk\u00e1v\u00e1n\u00ed elektrick\u00e9 energie z «vzduchu» \u2013 z elektromagnetick\u00e9ho \u0161umu, vibrac\u00ed, sv\u011btla, vlhkosti a mnoha dal\u0161\u00edch zdroj\u016f \u2013 zaj\u00edm\u00e1 jak civiln\u00ed v\u00fdzkumn\u00edky, tak i jejich kolegy v uniform\u00e1ch. Sv\u016fj p\u0159\u00edsp\u011bvek k t\u00e9to t\u00e9matice p\u0159inesli v\u011bdci<\/a><\/noindex> z Pennsylv\u00e1nsk\u00e9 st\u00e1tn\u00ed univerzity. Z magnetick\u00fdch pol\u00ed okoln\u00edch elektrick\u00fdch veden\u00ed dok\u00e1zali z\u00edskat elekt\u0159inu o v\u00fdkonu n\u011bkolika miliwatt\u016f, co\u017e sta\u010d\u00ed nap\u0159\u00edklad k nap\u00e1jen\u00ed digit\u00e1ln\u00edho bud\u00edku.<\/p>\n

\"Ameri\u010dan\u00e9<\/p>\n

V \u010dl\u00e1nku publikovan\u00e9m v \u010dasopise Energy & Environmental Science<\/a><\/noindex> v\u011bdci popsali v\u00fdpo\u010dty a v\u00fdrobu speci\u00e1ln\u00edch p\u0159evodn\u00edk\u016f elektromagnetick\u00fdch pol\u00ed na elektrick\u00fd proud. Z\u00edsk\u00e1vac\u00ed prvek m\u00e1 podobu v\u00edcevrstv\u00e9 tenk\u00e9 desky s permanentn\u00edm magnetem na voln\u00e9m konci (druh\u00fd konec desky je pevn\u011b uchycen). Samotn\u00e1 deska se skl\u00e1d\u00e1 ze vrstvy piezoelektrika a vrstvy magnetostrik\u010dn\u00edho<\/a><\/noindex> materi\u00e1lu (Fe85B5Si10 Metglas).<\/p>\n

Magnetostrik\u010dn\u00ed materi\u00e1l je zaj\u00edmav\u00fd t\u00edm, \u017ee p\u0159i zm\u011bn\u011b stavu magnetizace se jeho objem a line\u00e1rn\u00ed rozm\u011bry m\u011bn\u00ed. Otravn\u00e9 hu\u010den\u00ed c\u00edvek ve grafick\u00fdch kart\u00e1ch je zpravidla zp\u016fsobeno magnetostrik\u010dn\u00edmi zm\u011bnami v j\u00e1drech. V prom\u011bnn\u00e9m magnetick\u00e9m poli b\u011b\u017en\u00e9ho elektrick\u00e9ho veden\u00ed o frekvenci 50 nebo 60 Hz za\u010d\u00edn\u00e1 deska z Metglas vibrovat a deformovat na ni p\u0159ilepenou desku z piezoelektrika. V p\u0159ipojen\u00e9 s\u00edti k desk\u00e1m za\u010dne t\u00e9ct proud.<\/p>\n

\"Ameri\u010dan\u00e9<\/p>\n

Nicm\u00e9n\u011b, magnetostrik\u010dn\u00ed materi\u00e1l ve spojen\u00ed s piezoelektrikem vyr\u00e1b\u00ed pouze a\u017e 16 % elektrick\u00e9 energie generovan\u00e9 prvkem. Hlavn\u00ed v\u00fdroba poch\u00e1z\u00ed z kmit\u00e1n\u00ed permanentn\u00edho magnetu v elektromagnetick\u00e9m poli. Tvrd\u00ed se, \u017ee \u0161pi\u010dkov\u00e9 nap\u011bt\u00ed na prvku dosahuje 80 V v poli o s\u00edle 300 \u00b5T. Ale nejcenn\u011bj\u0161\u00ed je, \u017ee vyvinut\u00fd prvek mohl z\u00edsk\u00e1vat dostatek energie pro p\u0159\u00edm\u00e9 nap\u00e1jen\u00ed digit\u00e1ln\u00edch hodin v poli o s\u00edle m\u00e9n\u011b ne\u017e 50 \u00b5T ve vzd\u00e1lenosti 20 cm od elektrick\u00e9ho veden\u00ed.<\/p>\n

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

Sv\u00e9 v\u00fdzkumy v\u011bdci z Pennsylv\u00e1nsk\u00e9 st\u00e1tn\u00ed univerzity prov\u00e1d\u011bli ve spolupr\u00e1ci s v\u00fdzkumn\u00edky z Virginia Tech a skupinou Velitelstv\u00ed pro rozvoj bojov\u00fdch schopnost\u00ed americk\u00e9 arm\u00e1dy.<\/p>\n

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

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