\n| Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/td>\n | Loa, \u0111\u1ed3 ch\u01a1i, \u0111\u1ed9ng c\u01a1<\/td>\n | \u0110\u1ed9ng c\u01a1 EV, c\u1ea3m bi\u1ebfn, MRI<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i v\u00ec r\u1ebb, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ee7 t\u1ed1t cho nhi\u1ec1u nhi\u1ec7m v\u1ee5 ph\u1ed5 bi\u1ebfn. B\u1ea1n s\u1ebd th\u1ea5y ch\u00fang trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u00f4 t\u00f4, ch\u1ed1t c\u1eeda v\u00e0 d\u1ee5ng c\u1ee5 nh\u00e0 b\u1ebfp. Ch\u00fang kh\u00f4ng n\u1ed5i b\u1eadt, nh\u01b0ng ho\u00e0n th\u00e0nh c\u00f4ng vi\u1ec7c.<\/p>\n M\u1ee5c \u0111\u00edch c\u1ee7a ferrite l\u00e0 g\u00ec?<\/h2>\nT\u1ea1i sao ferrite \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u00f3 c\u00e1c nam ch\u00e2m m\u1ea1nh h\u01a1n nh\u01b0 neodymium? C\u00e2u tr\u1ea3 l\u1eddi n\u1eb1m \u1edf hi\u1ec7u qu\u1ea3 v\u00e0 t\u1ea7n s\u1ed1.<\/p>\n Ferrite \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1eb7n nhi\u1ec5u t\u1ea7n s\u1ed1 cao v\u00e0 \u1ed5n \u0111\u1ecbnh t\u00edn hi\u1ec7u trong \u0111i\u1ec7n t\u1eed. Ch\u00fang c\u1ea7n thi\u1ebft cho radio, ngu\u1ed3n \u0111i\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng vi\u1ec5n th\u00f4ng.<\/strong><\/p>\n![\"L\u00f5i](\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/Ferrite-core-300x174.jpg\") L\u00f5i ferrite<\/p><\/div>\n Ferrite trong ho\u1ea1t \u0111\u1ed9ng<\/h3>\nFerrite kh\u00f4ng ch\u1ec9 v\u1ec1 t\u1eeb t\u00ednh. Gi\u00e1 tr\u1ecb th\u1ef1c c\u1ee7a ch\u00fang \u0111\u1ebfn t\u1eeb \u0111i\u1ec7n tr\u1edf cao c\u1ee7a ch\u00fang. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u00fang c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u d\u00f2ng \u0111i\u1ec7n kh\u00f4ng mong mu\u1ed1n (g\u1ecdi l\u00e0 d\u00f2ng eddy) trong m\u00f4i tr\u01b0\u1eddng t\u1ea7n s\u1ed1 cao. \u0110\u00e2y l\u00e0 c\u00e1ch ch\u00fang ho\u1ea1t \u0111\u1ed9ng:<\/p>\n \n- Trong b\u1ed9 s\u1ea1c \u0111i\u1ec7n, h\u1ea1t ferrite ng\u0103n ch\u1eb7n nhi\u1ec5u truy\u1ec1n qua d\u00e2y.<\/li>\n
- Trong bi\u1ebfn \u00e1p, l\u00f5i ferrite gi\u00fap truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3.<\/li>\n
- Trong anten radio, ferrite c\u1ea3i thi\u1ec7n \u0111\u1ed9 r\u00f5 c\u1ee7a t\u00edn hi\u1ec7u.<\/li>\n<\/ul>\n
H\u00e3y ngh\u0129 v\u1ec1 b\u1ed9 s\u1ea1c \u0111i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n. C\u1ee5c nh\u1ecf g\u1ea7n c\u1ed5ng USB \u0111\u00f3? \u0110\u00f3 th\u01b0\u1eddng l\u00e0 m\u1ed9t h\u1ea1t ferrite. N\u00f3 gi\u00fap ng\u0103n ch\u1eb7n b\u1ed9 s\u1ea1c c\u1ee7a b\u1ea1n g\u00e2y nhi\u1ec5u cho c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c. M\u1ed9t c\u00e1ch \u00e2m th\u1ea7m, ferrite l\u00e0m cho \u0111i\u1ec7n t\u1eed c\u1ee7a b\u1ea1n \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n Ferrite m\u1ec1m l\u00e0 g\u00ec?<\/h2>\nKh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c s\u1eaft t\u1eeb \u0111\u1ec1u l\u00e0 nam ch\u00e2m v\u0129nh c\u1eedu. M\u1ed9t s\u1ed1 ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng khi \u0111\u01b0\u1ee3c c\u1ea5p n\u0103ng l\u01b0\u1ee3ng. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang l\u00fd t\u01b0\u1edfng \u0111\u1ec3 thay \u0111\u1ed5i tr\u01b0\u1eddng t\u1eeb.<\/p>\n S\u1eaft t\u1eeb m\u1ec1m l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u t\u1eeb c\u00f3 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb th\u1ea5p. N\u00f3 m\u1ea5t t\u1eeb t\u00ednh khi lo\u1ea1i b\u1ecf tr\u01b0\u1eddng ngo\u00e0i, \u0111i\u1ec1u n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p cho bi\u1ebfn \u00e1p v\u00e0 cu\u1ed9n c\u1ea3m.<\/strong><\/p>\n![\"s\u1eaft](\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/04\/soft-ferrite-300x200.jpg\") s\u1eaft t\u1eeb m\u1ec1m<\/p><\/div>\n T\u1ea1i sao s\u1eaft t\u1eeb m\u1ec1m quan tr\u1ecdng trong m\u1ea1ch \u0111i\u1ec7n<\/h3>\nS\u1eaft t\u1eeb m\u1ec1m \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb oxit s\u1eaft v\u00e0 oxit c\u1ee7a nickel, k\u1ebdm ho\u1eb7c mangan. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c nung ch\u1ea3y c\u00f9ng nhau \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t ceramic c\u00f3 \u0111\u1eb7c t\u00ednh t\u1eeb ri\u00eang bi\u1ec7t.<\/p>\n D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do c\u00e1c k\u1ef9 s\u01b0 y\u00eau th\u00edch ch\u00fang:<\/p>\n \n- Ch\u00fang kh\u00f4ng gi\u1eef t\u1eeb t\u00ednh. \u0110i\u1ec1u n\u00e0y t\u1ed1t khi b\u1ea1n c\u1ea7n chuy\u1ec3n \u0111\u1ed5i nhanh ch\u00f3ng.<\/li>\n
- Ch\u00fang gi\u1ea3m t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c bi\u1ebfn \u00e1p.<\/li>\n
- Ch\u00fang l\u1ecdc b\u1ecf nhi\u1ec5u t\u1ea7n s\u1ed1 cao.<\/li>\n<\/ul>\n
\n\n\n| Thu\u1ed9c t\u00ednh<\/th>\n | S\u1eaft t\u1eeb m\u1ec1m<\/th>\n | Ferrite c\u1ee9ng<\/th>\n<\/tr>\n<\/thead>\n | \n\n| H\u00e0nh vi t\u1eeb tr\u01b0\u1eddng<\/td>\n | T\u1ea1m th\u1eddi (c\u01b0\u1ee1ng t\u1eeb th\u1ea5p)<\/td>\n | V\u0129nh vi\u1ec5n (c\u01b0\u1ee1ng t\u1eeb cao)<\/td>\n<\/tr>\n | \n| \u1ee8ng d\u1ee5ng<\/td>\n | Cu\u1ed9n d\u00e2y, chokes, bi\u1ebfn \u00e1p<\/td>\n | \u0110\u1ed9ng c\u01a1, loa, nam ch\u00e2m<\/td>\n<\/tr>\n | \n| Ph\u1ea3n h\u1ed3i t\u1ea7n s\u1ed1<\/td>\n | Xu\u1ea5t s\u1eafc cho s\u1eed d\u1ee5ng t\u1ea7n s\u1ed1 cao<\/td>\n | Th\u1ea5p h\u01a1n s\u1eaft t\u1eeb m\u1ec1m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Trong m\u1ecdi ngu\u1ed3n c\u1ea5p \u0111i\u1ec7n chuy\u1ec3n m\u1ea1ch ho\u1eb7c ph\u00e1t thanh, s\u1eaft t\u1eeb m\u1ec1m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng. Ch\u00fang gi\u00fap qu\u1ea3n l\u00fd d\u00f2ng n\u0103ng l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng ho\u1eb7c chi ph\u00ed. N\u1ebfu kh\u00f4ng c\u00f3 ch\u00fang, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u1ee7a b\u1ea1n s\u1ebd l\u1edbn h\u01a1n, ch\u1eadm h\u01a1n v\u00e0 k\u00e9m hi\u1ec7u qu\u1ea3.<\/p>\n Ferrite c\u00f3 ph\u1ea3i l\u00e0 kim lo\u1ea1i kh\u00f4ng?<\/h2>\nFerrite tr\u00f4ng kh\u00f4ng gi\u1ed1ng kim lo\u1ea1i. N\u00f3 c\u0169ng kh\u00f4ng c\u1ea3m gi\u00e1c nh\u01b0 kim lo\u1ea1i. V\u1eady n\u00f3 c\u00f3 th\u1ef1c s\u1ef1 l\u00e0 kim lo\u1ea1i kh\u00f4ng?<\/p>\n Ferrite kh\u00f4ng ph\u1ea3i l\u00e0 kim lo\u1ea1i tinh khi\u1ebft. N\u00f3 l\u00e0 m\u1ed9t lo\u1ea1i g\u1ed1m l\u00e0m t\u1eeb oxit s\u1eaft v\u00e0 c\u00e1c oxit kim lo\u1ea1i kh\u00e1c, k\u1ebft h\u1ee3p \u0111\u1eb7c t\u00ednh t\u1eeb v\u1edbi \u0111i\u1ec7n tr\u1edf cao.<\/strong><\/p>\n\u0110i\u1ec1u g\u00ec l\u00e0m cho ferrite kh\u00e1c bi\u1ec7t so v\u1edbi kim lo\u1ea1i?<\/h3>\nFerrite thu\u1ed9c lo\u1ea1i v\u1eadt li\u1ec7u g\u1ecdi l\u00e0 h\u1ee3p ch\u1ea5t g\u1ed1m. Kh\u00e1c v\u1edbi nam ch\u00e2m kim lo\u1ea1i, ch\u00fang kh\u00f4ng d\u1eabn \u0111i\u1ec7n t\u1ed1t v\u00e0 \u00edt b\u1ecb g\u1ec9 s\u00e9t. \u0110\u00f3 l\u00e0 l\u00fd do khi\u1ebfn ch\u00fang r\u1ea5t h\u1eefu \u00edch trong \u0111i\u1ec7n t\u1eed.<\/p>\n H\u00e3y so s\u00e1nh:<\/p>\n \n\n\n| \u0110\u1eb7c \u0111i\u1ec3m<\/th>\n | S\u1eaft ferrit<\/th>\n | Kim lo\u1ea1i (v\u00ed d\u1ee5: S\u1eaft)<\/th>\n<\/tr>\n<\/thead>\n | \n\n| \u0110i\u1ec7n d\u1eabn<\/td>\n | Th\u1ea5p (ch\u1ea5t c\u00e1ch \u0111i\u1ec7n)<\/td>\n | Cao (ch\u1ea5t d\u1eabn \u0111i\u1ec7n)<\/td>\n<\/tr>\n | \n| Ch\u1ed1ng \u0103n m\u00f2n<\/td>\n | Cao<\/td>\n | Th\u1ea5p (d\u1ec5 g\u1ec9 s\u00e9t)<\/td>\n<\/tr>\n | \n| M\u1eadt \u0111\u1ed9<\/td>\n | Th\u1ea5p h\u01a1n<\/td>\n | Cao h\u01a1n<\/td>\n<\/tr>\n | \n| H\u00e0nh vi t\u1eeb tr\u01b0\u1eddng<\/td>\n | Thay \u0111\u1ed5i (m\u1ec1m\/c\u1ee9ng)<\/td>\n | Th\u01b0\u1eddng m\u1ec1m t\u1eeb t\u00ednh<\/td>\n<\/tr>\n | \n| \u1ee8ng d\u1ee5ng<\/td>\n | \u0110i\u1ec7n t\u1eed, b\u1ed9 l\u1ecdc, anten<\/td>\n | C\u1ea5u tr\u00fac, \u0111\u1ed9ng c\u01a1, d\u1ee5ng c\u1ee5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n M\u1eb7c d\u00f9 ferrite ch\u1ee9a s\u1eaft, n\u00f3 ho\u1ea1t \u0111\u1ed9ng r\u1ea5t kh\u00e1c bi\u1ec7t so v\u1edbi kim lo\u1ea1i. N\u00f3 gi\u00f2n, gi\u1ed1ng nh\u01b0 g\u1ed1m s\u1ee9. Nh\u01b0ng n\u00f3 cung c\u1ea5p cho c\u00e1c k\u1ef9 s\u01b0 c\u00f4ng c\u1ee5 \u0111\u1ec3 qu\u1ea3n l\u00fd c\u1ea3 t\u1eeb t\u00ednh v\u00e0 \u0111i\u1ec7n trong c\u00e1c thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn, gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng.<\/p>\n K\u1ebft lu\u1eadn<\/h2>\nFerrite l\u00e0 nh\u1eefng v\u1eadt li\u1ec7u \u0111\u01a1n gi\u1ea3n nh\u01b0ng m\u1ea1nh m\u1ebd. D\u00f9 c\u1ee9ng hay m\u1ec1m, ch\u00fang xu\u1ea5t hi\u1ec7n kh\u1eafp n\u01a1i trong \u0111i\u1ec7n t\u1eed v\u00e0 nam ch\u00e2m\u2014v\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft cho cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n Vai tr\u00f2 c\u1ee7a t\u00f4i<\/h2>\nV\u1ec1 t\u00f4i<\/h3>\nT\u00ean th\u01b0\u01a1ng hi\u1ec7u:<\/strong> Nam ch\u00e2m NBAEM
\nKh\u1ea9u hi\u1ec7u:<\/strong> Chuy\u00ean v\u1ec1 v\u1eadt li\u1ec7u t\u1eeb t\u00ednh
\nTrang web:<\/strong> nbaem.com<\/a><\/p>\nS\u1ee9 m\u1ec7nh c\u1ee7a ch\u00fang t\u00f4i:<\/strong>
\nNam ch\u00e2m NBAEM l\u00e0 m\u1ed9t c\u00f4ng ty nam ch\u00e2m v\u1edbi 15 n\u0103m kinh nghi\u1ec7m. Ch\u00fang t\u00f4i chuy\u00ean v\u1ec1 c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb t\u00ednh kh\u00e1c nhau, nh\u1eb1m gi\u00fap t\u1eebng kh\u00e1ch h\u00e0ng t\u1ea1o ra c\u00e1c nam ch\u00e2m t\u00f9y ch\u1ec9nh ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a h\u1ecd. Ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 tr\u01b0\u1edbc b\u00e1n h\u00e0ng v\u00e0 sau b\u00e1n h\u00e0ng ch\u1ea5t l\u01b0\u1ee3ng cao, c\u00f9ng v\u1edbi h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt li\u00ean quan.<\/p>\nV\u1ec1 t\u00f4i:<\/strong>
\nNBAEM \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp b\u1edfi t\u00f4i\u2014m\u1ed9t chuy\u00ean gia \u0111am m\u00ea trong ng\u00e0nh nam ch\u00e2m. T\u00f4i b\u1eaft \u0111\u1ea7u s\u1ef1 nghi\u1ec7p t\u1ea1i m\u1ed9t nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t nam ch\u00e2m v\u00e0 sau \u0111\u00f3 th\u00e0nh l\u1eadp m\u1ed9t c\u00f4ng ty th\u00e0nh c\u00f4ng v\u1ec1 nam ch\u00e2m v\u00e0 l\u1eafp r\u00e1p t\u1eeb t\u00ednh. Qua h\u00e0nh tr\u00ecnh trong ng\u00e0nh nam ch\u00e2m, t\u00f4i \u0111\u00e3 gi\u00fap nhi\u1ec1u kh\u00e1ch h\u00e0ng ph\u00e1t tri\u1ec3n doanh nghi\u1ec7p c\u1ee7a h\u1ecd. B\u1eb1ng c\u00e1ch chia s\u1ebb ki\u1ebfn th\u1ee9c v\u00e0 kinh nghi\u1ec7m c\u1ee7a m\u00ecnh, t\u00f4i mong mu\u1ed1n gi\u00fap kh\u00e1ch h\u00e0ng t\u00ecm ra gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p.<\/p>","protected":false},"excerpt":{"rendered":"Nam ch\u00e2m v\u0129nh c\u1eedu xu\u1ea5t hi\u1ec7n kh\u1eafp n\u01a1i\u2014trong \u0111\u1ed9ng c\u01a1, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, loa. Nh\u01b0ng kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u1ec1u gi\u1ed1ng nhau. M\u1ed9t s\u1ed1 l\u00e0 kim lo\u1ea1i, s\u1ed1 kh\u00e1c l\u00e0 g\u1ed1m. B\u1ea1n c\u00f3 bi\u1ebft s\u1ef1 kh\u00e1c bi\u1ec7t kh\u00f4ng? Ferrite l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb oxit s\u1eaft v\u00e0 c\u00e1c oxit kim lo\u1ea1i kh\u00e1c, c\u00f3 \u0111i\u1ec7n tr\u1edf cao. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong t\u1ea7n s\u1ed1 cao [\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\/vi\/wp-json\/wp\/v2\/posts\/1508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/comments?post=1508"}],"version-history":[{"count":5,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1508\/revisions"}],"predecessor-version":[{"id":2813,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1508\/revisions\/2813"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/635"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} | | |
![\"nam](\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-magnet-\u603b\u56fe-1.png\")
<\/p>\n![\"nam](\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet.jpg\")
<\/p>\n