{"id":1508,"date":"2025-04-24T05:50:00","date_gmt":"2025-04-24T05:50:00","guid":{"rendered":"https:\/\/nbaem.com\/?p=1508"},"modified":"2025-09-17T07:30:27","modified_gmt":"2025-09-17T07:30:27","slug":"what-is-ferrite","status":"publish","type":"post","link":"https:\/\/nbaem.com\/cs\/what-is-ferrite\/","title":{"rendered":"Druhy ferit\u016f"},"content":{"rendered":"<p>Permanentn\u00ed magnety jsou v\u0161ude \u2013 v motorech, elektronice, reproduktorech. Ale ne v\u0161echny magnety jsou stejn\u00e9. N\u011bkter\u00e9 jsou kovov\u00e9, jin\u00e9 keramick\u00e9. Zn\u00e1te rozd\u00edl?<\/p>\n<p><strong>Ferrit je typ magnetick\u00e9ho materi\u00e1lu vyroben\u00e9ho z oxidu \u017eeleza a dal\u0161\u00edch kovov\u00fdch oxid\u016f, s vysok\u00fdm elektrick\u00fdm odporem. Je \u0161iroce pou\u017e\u00edv\u00e1n v vysokofrekven\u010dn\u00edch elektronick\u00fdch sou\u010d\u00e1stech.<\/strong><br \/>\n<img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-magnet-\u603b\u56fe-1.png\" alt=\"ferritov\u00fd magnet\" \/><\/p>\n<p><a title=\"**Feritov\u00e9 magnety**\" href=\"http:\/\/nbaem.com\/cs\/products\/ceramic-magnet\/\"><strong>Ferritov\u00e9 magnety <\/strong><\/a>nejsou tak n\u00e1padn\u00e9 jako magnety vz\u00e1cn\u00fdch zemin, ale hraj\u00ed kl\u00ed\u010dovou roli v elektronice a spot\u0159ebitelsk\u00fdch produktech. Pokud v\u00e1s zaj\u00edm\u00e1, co jsou ferrity a jak se pou\u017e\u00edvaj\u00ed, jste na spr\u00e1vn\u00e9m m\u00edst\u011b.<\/p>\n<h2>Co je tvrd\u00fd ferrit?<\/h2>\n<p>Tvrd\u00e9 ferrity se pou\u017e\u00edvaj\u00ed v ka\u017edodenn\u00edm \u017eivot\u011b, ale \u010dasto jsou p\u0159ehl\u00ed\u017eeny. Chcete v\u011bd\u011bt, co je \u010din\u00ed tak odoln\u00fdmi?<\/p>\n<p><strong>Tvrd\u00fd ferrit je typ keramick\u00e9ho magnetu, kter\u00fd z\u016fst\u00e1v\u00e1 magnetizovan\u00fd po dlouhou dobu. \u010casto se pou\u017e\u00edv\u00e1 v reproduktorech, motorech a magnetech na ledni\u010dku.<\/strong><br \/>\n<img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet.jpg\" alt=\"feritov\u00fd prstencov\u00fd magnet\" \/><\/p>\n<h3>Pro\u010d jsou tvrd\u00e9 ferrity d\u016fle\u017eit\u00e9<\/h3>\n<p>Tvrd\u00e9 ferrity jsou vyrobeny z oxidu \u017eeleza a barya nebo strontia karbon\u00e1tu. Jakmile jsou magnetizov\u00e1ny, dob\u0159e si udr\u017euj\u00ed sv\u00e9 magnetick\u00e9 vlastnosti. To je \u010din\u00ed ide\u00e1ln\u00edmi pro aplikace s trval\u00fdm magnetem.<\/p>\n<p>Zde je jednoduch\u00e9 shrnut\u00ed:<\/p>\n<table>\n<thead>\n<tr>\n<th>Vlastnost<\/th>\n<th>Tvrd\u00fd ferrit<\/th>\n<th>Magnet vz\u00e1cn\u00fdch zemin<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Slo\u017een\u00ed<\/td>\n<td>Oxid \u017eeleza + Ba\/Sr karbon\u00e1t<\/td>\n<td>Slitiny neodymu nebo samaria<\/td>\n<\/tr>\n<tr>\n<td>Cena<\/td>\n<td>N\u00edzk\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Koroze<\/td>\n<td>Odoln\u00fd<\/td>\n<td>Vy\u017eaduje povrchovou \u00fapravu<\/td>\n<\/tr>\n<tr>\n<td>Magnetick\u00e1 s\u00edla<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<td>Velmi vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Pou\u017eit\u00ed<\/td>\n<td>Reproduktory, hra\u010dky, motory<\/td>\n<td>Motory elektromobil\u016f, senzory, MRI<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Jsou \u0161iroce pou\u017e\u00edv\u00e1ny, proto\u017ee jsou levn\u00e9, odoln\u00e9 v\u016f\u010di korozi a dostate\u010dn\u00e9 pro mnoho b\u011b\u017en\u00fdch \u00fakol\u016f. Najdete je v palubn\u00edch desk\u00e1ch aut, z\u00e1mc\u00edch dve\u0159\u00ed a kuchy\u0148sk\u00fdch n\u00e1stroj\u00edch. Nen\u00ed to n\u00e1padn\u00e9, ale spln\u00ed to svou funkci.<\/p>\n<h2>Jak\u00fd je \u00fa\u010del ferritu?<\/h2>\n<p>Pro\u010d se pou\u017e\u00edvaj\u00ed ferrity, kdy\u017e jsou k dispozici siln\u011bj\u0161\u00ed magnety jako neodym? Odpov\u011b\u010f spo\u010d\u00edv\u00e1 v \u00fa\u010dinnosti a frekvenci.<\/p>\n<p><strong>Ferrity se pou\u017e\u00edvaj\u00ed k blokov\u00e1n\u00ed vysokofrekven\u010dn\u00edho \u0161umu a stabilizaci sign\u00e1l\u016f v elektronice. Jsou nezbytn\u00e9 pro r\u00e1dio, nap\u00e1jec\u00ed zdroje a telekomunika\u010dn\u00ed syst\u00e9my.<\/strong><\/p>\n<div id=\"attachment_1509\" style=\"width: 310px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1509\" class=\"size-medium wp-image-1509\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-300x174.jpg\" alt=\"Ferritov\u00e9 j\u00e1dro\" width=\"300\" height=\"174\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-200x116.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-300x174.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-400x232.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-600x348.jpg 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-768x445.jpg 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-800x464.jpg 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core.jpg 899w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-1509\" class=\"wp-caption-text\">Ferritov\u00e9 j\u00e1dro<\/p><\/div>\n<h3>Ferrity v akci<\/h3>\n<p>Ferrity nejsou jen o magnetismu. Jejich skute\u010dn\u00e1 hodnota spo\u010d\u00edv\u00e1 v jejich vysok\u00e9 elektrick\u00e9 resistivit\u011b. To znamen\u00e1, \u017ee mohou potla\u010dit ne\u017e\u00e1douc\u00ed proudy (naz\u00fdvan\u00e9 v\u00ed\u0159iv\u00e9 proudy) v prost\u0159ed\u00ed s vysokou frekvenc\u00ed. Tady je, jak funguj\u00ed:<\/p>\n<ul>\n<li>V nap\u00e1jec\u00edch adapt\u00e9rech br\u00e1n\u00ed ferritov\u00e9 kuli\u010dky \u0161\u00ed\u0159en\u00ed \u0161umu po vodi\u010d\u00edch.<\/li>\n<li>U transform\u00e1tor\u016f pom\u00e1haj\u00ed ferritov\u00e9 j\u00e1dra efektivn\u011b p\u0159en\u00e1\u0161et energii.<\/li>\n<li>U r\u00e1diov\u00fdch ant\u00e9n zlep\u0161uj\u00ed ferrity kvalitu sign\u00e1lu.<\/li>\n<\/ul>\n<p>P\u0159em\u00fd\u0161lejte o sv\u00e9m nab\u00edje\u010dce na telefon. Ta mal\u00e1 boule u USB konektoru? \u010casto je to ferritov\u00e1 kuli\u010dka. Je tam, aby zabr\u00e1nila ru\u0161en\u00ed jin\u00fdch za\u0159\u00edzen\u00ed va\u0161\u00ed nab\u00edje\u010dkou. Ti\u0161e, ferrity \u010din\u00ed va\u0161i elektroniku spolehliv\u011bj\u0161\u00ed.<\/p>\n<h2>Co je m\u011bkk\u00fd ferrit?<\/h2>\n<p>Ne v\u0161echny ferrity jsou trval\u00e9 magnety. N\u011bkter\u00e9 funguj\u00ed pouze p\u0159i nap\u00e1jen\u00ed. To je \u010din\u00ed ide\u00e1ln\u00edmi pro m\u011bn\u00edc\u00ed se magnetick\u00e1 pole.<\/p>\n<p><strong>M\u011bkk\u00fd ferrit je magnetick\u00fd materi\u00e1l s n\u00edzkou koercitivitou. Ztr\u00e1c\u00ed sv\u00e9 magnetick\u00e9 vlastnosti, jakmile je vn\u011bj\u0161\u00ed pole odstran\u011bno, co\u017e je ide\u00e1ln\u00ed pro transform\u00e1tory a c\u00edvky.<\/strong><\/p>\n<div id=\"attachment_1511\" style=\"width: 310px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1511\" class=\"size-medium wp-image-1511\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite-300x200.jpg\" alt=\"m\u011bkk\u00fd ferrit\" width=\"300\" height=\"200\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite-200x133.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite-300x200.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite-400x266.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite-600x399.jpg 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite-768x511.jpg 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite.jpg 781w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-1511\" class=\"wp-caption-text\">m\u011bkk\u00fd ferrit<\/p><\/div>\n<h3>Pro\u010d jsou m\u011bkk\u00e9 ferrity d\u016fle\u017eit\u00e9 v obvodech<\/h3>\n<p>M\u011bkk\u00e9 ferrity jsou vyrobeny z oxidu \u017eeleza a oxid\u016f niklu, zinku nebo manganu. Tyto materi\u00e1ly jsou slinov\u00e1ny dohromady, aby vytvo\u0159ily keramiku s konkr\u00e9tn\u00edmi magnetick\u00fdmi vlastnostmi.<\/p>\n<p>Tady je d\u016fvod, pro\u010d je maj\u00ed in\u017een\u00fd\u0159i r\u00e1di:<\/p>\n<ul>\n<li>Neudr\u017euj\u00ed magnetismus. To je dobr\u00e9, kdy\u017e je pot\u0159eba rychl\u00e9 p\u0159ep\u00edn\u00e1n\u00ed.<\/li>\n<li>Sni\u017euj\u00ed ztr\u00e1ty energie v transform\u00e1torech.<\/li>\n<li>Filtruj\u00ed vysokofrekven\u010dn\u00ed \u0161um.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Vlastnost<\/th>\n<th>M\u011bkk\u00fd ferrit<\/th>\n<th>Tvrd\u00fd ferrit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Magnetick\u00e9 chov\u00e1n\u00ed<\/td>\n<td>Do\u010dasn\u00e9 (n\u00edzk\u00e1 koercitivita)<\/td>\n<td>Perle\u0165ov\u00e9 (s vysokou koercivitou)<\/td>\n<\/tr>\n<tr>\n<td>Aplikace<\/td>\n<td>C\u00edvky, tlumivky, transform\u00e1tory<\/td>\n<td>Motory, reproduktory, magnety<\/td>\n<\/tr>\n<tr>\n<td>Frekven\u010dn\u00ed odezva<\/td>\n<td>Vynikaj\u00edc\u00ed pro vysokofrekven\u010dn\u00ed pou\u017eit\u00ed<\/td>\n<td>Ni\u017e\u0161\u00ed ne\u017e m\u011bkk\u00e9 ferity<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V ka\u017ed\u00e9m sp\u00ednac\u00edm zdroji nebo r\u00e1diov\u00e9m vys\u00edla\u010di hraj\u00ed m\u011bkk\u00e9 ferity kl\u00ed\u010dovou roli. Pom\u00e1haj\u00ed \u0159\u00eddit tok energie bez p\u0159id\u00e1n\u00ed hmotnosti nebo n\u00e1klad\u016f. Bez nich by va\u0161e elektronika byla v\u011bt\u0161\u00ed, pomalej\u0161\u00ed a m\u00e9n\u011b efektivn\u00ed.<\/p>\n<h2>Je ferit kov?<\/h2>\n<p>Ferit nevypad\u00e1 jako kov. Nechov\u00e1 se ani jako kov. Tak\u017ee je to opravdu kov?<\/p>\n<p><strong>Ferit nen\u00ed \u010dist\u00fd kov. Je to keramika vyroben\u00e1 z oxidu \u017eeleza a dal\u0161\u00edch kovov\u00fdch oxid\u016f, kombinuj\u00edc\u00ed magnetick\u00e9 vlastnosti s vysok\u00fdm elektrick\u00fdm odporem.<\/strong><\/p>\n<h3>\u010c\u00edm se ferit li\u0161\u00ed od kovu?<\/h3>\n<p>Ferit pat\u0159\u00ed do t\u0159\u00eddy materi\u00e1l\u016f zn\u00e1m\u00fdch jako keramick\u00e9 slou\u010deniny. Na rozd\u00edl od kovov\u00fdch magnet\u016f dob\u0159e nevedou elekt\u0159inu a snadno nekoroduj\u00ed. To je d\u016fvod, pro\u010d jsou tak u\u017eite\u010dn\u00e9 v elektronice.<\/p>\n<p>Porovnejme:<\/p>\n<table>\n<thead>\n<tr>\n<th>Vlastnost<\/th>\n<th>Ferrit<\/th>\n<th>Kov (nap\u0159\u00edklad \u017eelezo)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Vodivost<\/td>\n<td>N\u00edzk\u00e1 (izol\u00e1tor)<\/td>\n<td>Vysok\u00e1 (vodiv\u00fd materi\u00e1l)<\/td>\n<\/tr>\n<tr>\n<td>Odolnost proti korozi<\/td>\n<td>Vysok\u00e1<\/td>\n<td>N\u00edzk\u00e1 (snadno rezav\u00ed)<\/td>\n<\/tr>\n<tr>\n<td>Hustota<\/td>\n<td>Ni\u017e\u0161\u00ed<\/td>\n<td>Vy\u0161\u0161\u00ed<\/td>\n<\/tr>\n<tr>\n<td>Magnetick\u00e9 chov\u00e1n\u00ed<\/td>\n<td>Li\u0161\u00ed se (m\u011bkk\u00e9\/tvrd\u00e9)<\/td>\n<td>Obvykle m\u011bkk\u00e9 magnetick\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Aplikace<\/td>\n<td>Elektronika, filtry, ant\u00e9ny<\/td>\n<td>Struktura, motory, n\u00e1stroje<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A\u010dkoliv ferit obsahuje \u017eelezo, chov\u00e1 se velmi odli\u0161n\u011b od kovu. Je k\u0159ehk\u00fd, jako keramika. Ale d\u00e1v\u00e1 in\u017een\u00fdr\u016fm n\u00e1stroje k \u0159\u00edzen\u00ed jak magnetismu, tak elekt\u0159iny v kompaktn\u00edch, cenov\u011b dostupn\u00fdch konstrukc\u00edch.<\/p>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>Ferity jsou jednoduch\u00e9, ale siln\u00e9 materi\u00e1ly. A\u0165 u\u017e tvrd\u00e9 nebo m\u011bkk\u00e9, jsou v\u0161ude v elektronice a magnetech \u2014 a jsou nezbytn\u00e9 pro modern\u00ed \u017eivot.<\/p>\n<h2>M\u00e1 role<\/h2>\n<h3>O mn\u011b<\/h3>\n<p><strong>N\u00e1zev zna\u010dky:<\/strong> magnet NBAEM<br \/>\n<strong>Slogan:<\/strong> Specializovan\u00fd na magnetick\u00e9 materi\u00e1ly<br \/>\n<strong>Webov\u00e1 str\u00e1nka:<\/strong> <a href=\"https:\/\/nbaem.com\/cs\/\">nbaem.com<\/a><\/p>\n<p><strong>Na\u0161e mise:<\/strong><br \/>\nNBAEM Magnet je spole\u010dnost zab\u00fdvaj\u00edc\u00ed se magnety s 15 lety zku\u0161enost\u00ed. Specializujeme se na r\u016fzn\u00e9 typy magnetick\u00fdch materi\u00e1l\u016f s c\u00edlem pomoci ka\u017ed\u00e9mu z\u00e1kazn\u00edkovi vytvo\u0159it n\u00e1kladov\u011b efektivn\u00ed na m\u00edru vyroben\u00e9 magnety a magnetick\u00e9 sou\u010d\u00e1stky, kter\u00e9 spl\u0148uj\u00ed jejich specifick\u00e9 po\u017eadavky. Poskytujeme vysoce kvalitn\u00ed p\u0159edprodejn\u00ed a poprodejn\u00ed slu\u017eby spolu s relevantn\u00ed technickou podporou.<\/p>\n<p><strong>O mn\u011b:<\/strong><br \/>\nNBAEM zalo\u017eil m\u011b \u2014 v\u00e1\u0161niv\u00fd profesion\u00e1l v oboru magnet\u016f. Za\u010dal jsem svou kari\u00e9ru ve v\u00fdrobn\u011b magnet\u016f a pozd\u011bji jsem zalo\u017eil \u00fasp\u011b\u0161nou spole\u010dnost na v\u00fdrobu magnet\u016f a magnetick\u00fdch sestav. D\u00edky sv\u00e9 cest\u011b v oboru magnet\u016f jsem pomohl mnoha klient\u016fm rozv\u00edjet jejich podnik\u00e1n\u00ed. Sd\u00edlen\u00edm sv\u00fdch znalost\u00ed a zku\u0161enost\u00ed se sna\u017e\u00edm pomoci klient\u016fm naj\u00edt spr\u00e1vn\u00e1 \u0159e\u0161en\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Permanentn\u00ed magnety jsou v\u0161ude \u2013 v motorech, elektronice, reproduktorech. Ale ne v\u0161echny magnety jsou stejn\u00e9. N\u011bkter\u00e9 jsou kovov\u00e9, jin\u00e9 keramick\u00e9. Zn\u00e1te rozd\u00edl? Ferrit je typ magnetick\u00e9ho materi\u00e1lu vyroben\u00e9ho z oxidu \u017eeleza a dal\u0161\u00edch kovov\u00fdch oxid\u016f, s vysok\u00fdm elektrick\u00fdm odporem. Je \u0161iroce pou\u017e\u00edv\u00e1n v vysokofrekven\u010dn\u00edm [\u2026]<\/p>","protected":false},"author":1,"featured_media":635,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1508","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-magnet-\u603b\u56fe.png","_links":{"self":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts\/1508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/comments?post=1508"}],"version-history":[{"count":5,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts\/1508\/revisions"}],"predecessor-version":[{"id":2813,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts\/1508\/revisions\/2813"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/media\/635"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/media?parent=1508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/categories?post=1508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/tags?post=1508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}