{"id":2980,"date":"2025-09-20T01:32:47","date_gmt":"2025-09-20T01:32:47","guid":{"rendered":"https:\/\/nbaem.com\/?p=2980"},"modified":"2025-09-20T04:21:12","modified_gmt":"2025-09-20T04:21:12","slug":"magnet-directions","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/magnet-directions\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn hi\u1ec3u bi\u1ebft v\u1ec1 h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m t\u1eeb t\u00e0i li\u1ec7u t\u1eeb t\u00ednh NBAEM"},"content":{"rendered":"<h2>H\u01b0\u1edbng d\u1eabn c\u1ee7a Nam ch\u00e2m<\/h2>\n<div style=\"width: 1310px\" class=\"wp-caption alignnone\"><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Directional_Magnets_in_Industry_and_Daily_Life_4hW.webp\" alt=\"H\u01b0\u1edbng c\u1ee7a nam ch\u00e2m\" width=\"1300\" height=\"385\" \/><p class=\"wp-caption-text\">H\u01b0\u1edbng c\u1ee7a nam ch\u00e2m<\/p><\/div>\n<p>Nam ch\u00e2m c\u00f3 hai \u0111\u1ea7u g\u1ecdi l\u00e0 c\u1ef1c t\u1eeb: the <strong>B\u1eafc<\/strong> v\u00e0 <strong>C\u1ef1c Nam<\/strong>. C\u00e1c c\u1ef1c n\u00e0y l\u00e0 n\u01a1i l\u1ef1c t\u1eeb m\u1ea1nh nh\u1ea5t. Theo quy \u01b0\u1edbc, c\u1ef1c B\u1eafc c\u1ee7a nam ch\u00e2m h\u01b0\u1edbng v\u1ec1 ph\u00eda B\u1eafc \u0111\u1ecba l\u00fd c\u1ee7a tr\u00e1i \u0111\u1ea5t khi \u0111\u01b0\u1ee3c ph\u00e9p di chuy\u1ec3n t\u1ef1 do.<\/p>\n<p>C\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng l\u00e0 c\u00e1c \u0111\u01b0\u1eddng v\u00f4 h\u00ecnh quanh nam ch\u00e2m th\u1ec3 hi\u1ec7n h\u01b0\u1edbng c\u1ee7a l\u1ef1c t\u1eeb. Nh\u1eefng \u0111\u01b0\u1eddng n\u00e0y lu\u00f4n ch\u1ea1y t\u1eeb c\u1ef1c B\u1eafc \u0111\u1ebfn c\u1ef1c Nam b\u00ean ngo\u00e0i nam ch\u00e2m v\u00e0 quay tr\u1edf l\u1ea1i qua ph\u1ea7n b\u00ean trong c\u1ee7a nam ch\u00e2m. Qu\u00e1 tr\u00ecnh n\u00e0y gi\u00fap h\u00ecnh dung c\u00e1ch nam ch\u00e2m h\u00fat ho\u1eb7c \u0111\u1ea9y nhau v\u00e0 c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c v\u1eadt li\u1ec7u t\u1eeb kh\u00e1c.<\/p>\n<p>Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa <strong>B\u1eafc \u0111\u1ecba<\/strong> v\u00e0 <strong>B\u1eafc t\u1eeb<\/strong> l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh nh\u1ea7m l\u1eabn:<\/p>\n<table>\n<thead>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>\u00dd ngh\u0129a c\u1ee7a n\u00f3<\/th>\n<th>Th\u00f4ng tin quan tr\u1ecdng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u1eafc \u0111\u1ecba<\/td>\n<td>\u0110i\u1ec3m c\u1ef1c B\u1eafc th\u1ef1c c\u1ee7a tr\u00e1i \u0111\u1ea5t<\/td>\n<td>V\u1ecb tr\u00ed c\u1ed1 \u0111\u1ecbnh tr\u00ean h\u00e0nh tinh<\/td>\n<\/tr>\n<tr>\n<td>B\u1eafc t\u1eeb<\/td>\n<td>\u0110i\u1ec3m m\u00e0 tr\u01b0\u1eddng t\u1eeb c\u1ee7a tr\u00e1i \u0111\u1ea5t h\u01b0\u1edbng xu\u1ed1ng<\/td>\n<td>Di chuy\u1ec3n ch\u1eadm theo th\u1eddi gian do s\u1ef1 thay \u0111\u1ed5i trong l\u00f5i tr\u00e1i \u0111\u1ea5t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi cho r\u1eb1ng c\u1ef1c B\u1eafc c\u1ee7a nam ch\u00e2m h\u01b0\u1edbng v\u1ec1 ph\u00eda B\u1eafc \u0111\u1ecba l\u00fd, nh\u01b0ng th\u1ef1c ra, c\u1ef1c B\u1eafc t\u1eeb c\u1ee7a tr\u00e1i \u0111\u1ea5t l\u00e0 c\u1ef1c Nam t\u1eeb, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u1ef1c B\u1eafc c\u1ee7a nam ch\u00e2m b\u1ecb h\u00fat v\u1ec1 ph\u00eda \u0111\u00f3. S\u1ef1 kh\u00e1c bi\u1ec7t tinh t\u1ebf n\u00e0y r\u1ea5t quan tr\u1ecdng khi s\u1eed d\u1ee5ng la b\u00e0n ho\u1eb7c thi\u1ebft k\u1ebf c\u00e1c thi\u1ebft b\u1ecb t\u1eeb.<\/p>\n<h2>C\u00e1ch x\u00e1c \u0111\u1ecbnh c\u1ef1c nam ch\u00e2m v\u00e0 h\u01b0\u1edbng c\u1ee7a n\u00f3<\/h2>\n<p>Bi\u1ebft c\u00e1ch t\u00ecm c\u1ef1c nam ch\u00e2m l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 s\u1eed d\u1ee5ng nam ch\u00e2m \u0111\u00fang c\u00e1ch. C\u00e1ch ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 d\u00f9ng <strong>la b\u00e0n<\/strong>: kim ch\u1ec9 h\u01b0\u1edbng c\u1ee7a la b\u00e0n ch\u1ec9 v\u1ec1 c\u1ef1c B\u1eafc c\u1ee7a nam ch\u00e2m. \u0110\u01a1n gi\u1ea3n \u0111\u01b0a la b\u00e0n g\u1ea7n nam ch\u00e2m v\u00e0 xem b\u00ean n\u00e0o k\u00e9o \u0111\u1ea7u kim ch\u1ec9 h\u01b0\u1edbng v\u1ec1 ph\u00eda \u0111\u00f3 \u2014 \u0111\u00f3 l\u00e0 c\u1ef1c Nam c\u1ee7a nam ch\u00e2m, v\u00ec tr\u00e1i d\u1ea5u h\u00fat nhau.<\/p>\n<p>M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p d\u1ec5 kh\u00e1c l\u00e0 s\u1eed d\u1ee5ng <strong>h\u1ea1t s\u1eaft<\/strong>. R\u1eafc ch\u00fang quanh nam ch\u00e2m tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t ph\u1eb3ng v\u00e0 c\u00e1c h\u1ea1t s\u1ebd x\u1ebfp th\u00e0nh h\u00e0ng d\u1ecdc theo c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng. C\u00e1c h\u1ea1t t\u1ee5 t\u1eadp d\u00e0y \u0111\u1eb7c t\u1ea1i c\u00e1c c\u1ef1c B\u1eafc v\u00e0 c\u1ef1c Nam, l\u00e0m cho c\u00e1c khu v\u1ef1c n\u00e0y tr\u1edf n\u00ean r\u00f5 r\u00e0ng.<\/p>\n<p>\u0110\u1ec3 ki\u1ec3m tra nhanh, m\u1ed9t s\u1ed1 chuy\u00ean gia s\u1eed d\u1ee5ng <strong>b\u00fat \u0111\u00e1nh d\u1ea5u<\/strong> nh\u01b0 c\u00e1c m\u1ea3nh kim lo\u1ea1i nh\u1ecf ho\u1eb7c th\u1eadm ch\u00ed m\u1ed9t nam ch\u00e2m kh\u00e1c c\u00f3 c\u1ef1c \u0111\u00e3 bi\u1ebft. Ch\u1eadm r\u00e3i di chuy\u1ec3n nam ch\u00e2m \u0111\u00e3 bi\u1ebft quanh nam ch\u00e2m c\u1ee7a b\u1ea1n; s\u1ef1 h\u00fat cho th\u1ea5y c\u00e1c c\u1ef1c tr\u00e1i d\u1ea5u, trong khi \u0111\u1ea9y ra cho th\u1ea5y c\u00e1c c\u1ef1c c\u00f9ng d\u1ea5u.<\/p>\n<p>Trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p, <strong>m\u00e3 m\u00e0u v\u00e0 d\u00e1n nh\u00e3n<\/strong> gi\u00fap x\u00e1c \u0111\u1ecbnh c\u1ef1c nhanh:<\/p>\n<ul>\n<li><strong>M\u00e0u \u0111\u1ecf<\/strong> th\u01b0\u1eddng \u0111\u00e1nh d\u1ea5u <strong>c\u1ef1c b\u1eafc<\/strong><\/li>\n<li><strong>M\u00e0u xanh ho\u1eb7c \u0111en<\/strong> \u0111\u00e1nh d\u1ea5u <strong>c\u1ef1c nam<\/strong><\/li>\n<\/ul>\n<p>Ti\u00eau chu\u1ea9n n\u00e0y gi\u00fap d\u1ec5 d\u00e0ng h\u01a1n trong vi\u1ec7c gh\u00e9p c\u00e1c nam ch\u00e2m trong s\u1ea3n xu\u1ea5t, l\u1eafp r\u00e1p \u0111\u1ed9ng c\u01a1 v\u00e0 \u0111i\u1ec7n t\u1eed.<\/p>\n<p>\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng h\u00e0ng ng\u00e0y v\u00e0 chuy\u00ean nghi\u1ec7p:<\/p>\n<ul>\n<li>Ki\u1ec3m tra b\u1eb1ng la b\u00e0n tr\u01b0\u1edbc khi l\u1eafp r\u00e1p \u0111\u1ec3 tr\u00e1nh sai l\u1ec7ch nam ch\u00e2m.<\/li>\n<li>S\u1eed d\u1ee5ng nam ch\u00e2m c\u00f3 nh\u00e3n ho\u1eb7c m\u00e3 m\u00e0u khi mua \u0111\u1ec3 gi\u1ea3m thi\u1ec3u \u0111o\u00e1n m\u00f2.<\/li>\n<li>L\u01b0u tr\u1eef nam ch\u00e2m xa c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m \u0111\u1ec3 tr\u00e1nh nhi\u1ec5u t\u1eeb kh\u00f4ng mong mu\u1ed1n.<\/li>\n<\/ul>\n<p>Hi\u1ec3u c\u00e1c k\u1ef9 thu\u1eadt \u0111\u01a1n gi\u1ea3n n\u00e0y gi\u00fap n\u00e2ng cao an to\u00e0n v\u00e0 \u0111\u1ea3m b\u1ea3o c\u00e1c d\u1ef1 \u00e1n d\u1ef1a tr\u00ean nam ch\u00e2m c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u00e1ch. \u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 c\u00e1ch x\u1eed l\u00fd nam ch\u00e2m v\u0129nh c\u1eedu, h\u00e3y ki\u1ec3m tra <a href=\"https:\/\/nbaem.com\/vi\/what-is-permanent-magnet\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">Nam ch\u00e2m v\u0129nh c\u1eedu l\u00e0 g\u00ec<\/span><\/strong><\/a><strong><span style=\"color: #ff6600;\">.<\/span><\/strong><\/p>\n<h2>Khoa h\u1ecdc \u0111\u1eb1ng sau h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m<\/h2>\n<p>T\u1eeb t\u00ednh xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c tr\u01b0\u1eddng t\u1eeb nh\u1ecf b\u00e9 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi c\u00e1c electron b\u00ean trong v\u1eadt li\u1ec7u. Nh\u1eefng electron n\u00e0y ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nh\u01b0 nh\u1eefng chi\u1ebfc quay nh\u1ecf, m\u1ed7i chi\u1ebfc t\u1ea1o ra l\u1ef1c t\u1eeb ri\u00eang c\u1ee7a n\u00f3. Khi nhi\u1ec1u electron quay c\u00f9ng h\u01b0\u1edbng, c\u00e1c l\u1ef1c t\u1eeb c\u1ee7a ch\u00fang k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t tr\u01b0\u1eddng t\u1eeb t\u1ed5ng th\u1ec3 m\u1ea1nh h\u01a1n.<\/p>\n<p>H\u01b0\u1edbng c\u1ee7a nam ch\u00e2m cho th\u1ea5y d\u00f2ng ch\u1ea3y c\u1ee7a l\u1ef1c t\u1eeb \u2014 t\u1eeb c\u1ef1c b\u1eafc c\u1ee7a nam ch\u00e2m \u0111\u1ebfn c\u1ef1c nam c\u1ee7a n\u00f3. H\u01b0\u1edbng n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch nam ch\u00e2m h\u00fat ho\u1eb7c \u0111\u1ea9y nhau. C\u00e1c c\u1ef1c \u0111\u1ed1i l\u1eadp h\u00fat nhau, trong khi c\u00e1c c\u1ef1c c\u00f9ng lo\u1ea1i \u0111\u1ea9y nhau. C\u00e1c \u0111\u01b0\u1eddng l\u1ef1c t\u1eeb b\u00ean ngo\u00e0i nam ch\u00e2m cho ta h\u00ecnh \u1ea3nh tr\u1ef1c quan v\u1ec1 d\u00f2ng l\u1ef1c n\u00e0y, u\u1ed1n cong t\u1eeb b\u1eafc sang nam.<\/p>\n<h2>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a h\u01b0\u1edbng nam ch\u00e2m<\/h2>\n<p>&nbsp;<\/p>\n<p>H\u01b0\u1edbng c\u1ee7a nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 d\u1ee5ng c\u1ee5 h\u00e0ng ng\u00e0y. Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, vi\u1ec7c bi\u1ebft ch\u00ednh x\u00e1c h\u01b0\u1edbng c\u1ef1c t\u1eeb c\u1ee7a nam ch\u00e2m l\u00e0 r\u1ea5t quan tr\u1ecdng cho c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 c\u1ea3m bi\u1ebfn, \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, b\u1ed9 ph\u00e2n lo\u1ea1i t\u1eeb v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef d\u1eef li\u1ec7u. Vi\u1ec7c c\u0103n ch\u1ec9nh \u0111\u00fang \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u0111a v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n<p>Trong s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y, h\u01b0\u1edbng nam ch\u00e2m quan tr\u1ecdng trong c\u00e1c la b\u00e0n, d\u1ef1a v\u00e0o tr\u01b0\u1eddng t\u1eeb c\u1ee7a Tr\u00e1i \u0110\u1ea5t \u0111\u1ec3 ch\u1ec9 h\u01b0\u1edbng b\u1eafc ch\u00ednh x\u00e1c. Nam ch\u00e2m t\u1ee7 l\u1ea1nh v\u00e0 gi\u00e1 \u0111\u1ee1 t\u1eeb c\u0169ng d\u1ef1a v\u00e0o h\u01b0\u1edbng c\u1ef1c \u0111\u00fang \u0111\u1ec3 gi\u1eef ch\u1eb7t v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>NBAEM cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p nam ch\u00e2m t\u00f9y ch\u1ec9nh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh h\u01b0\u1edbng c\u1ee5 th\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u ri\u00eang. D\u00f9 b\u1ea1n c\u1ea7n nam ch\u00e2m c\u0103n ch\u1ec9nh cho m\u00e1y m\u00f3c hay c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u1eb7c bi\u1ec7t, c\u00e1c t\u00f9y ch\u1ecdn n\u00e0y \u0111\u1ea3m b\u1ea3o l\u1ef1c t\u1eeb ph\u00f9 h\u1ee3p v\u00e0 hi\u1ec7u qu\u1ea3 cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n<h2>C\u00e1ch c\u0103n ch\u1ec9nh v\u00e0 s\u1eed d\u1ee5ng nam ch\u00e2m \u0111\u00fang c\u00e1ch<\/h2>\n<p>C\u0103n ch\u1ec9nh nam ch\u00e2m \u0111\u00fang c\u00e1ch l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t, d\u00f9 b\u1ea1n \u0111ang thi\u1ebft l\u1eadp thi\u1ebft b\u1ecb hay l\u00e0m vi\u1ec7c tr\u00ean d\u1ef1 \u00e1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean t\u1eafc t\u1ed1t nh\u1ea5t \u0111\u1ec3 theo d\u00f5i:<\/p>\n<ul>\n<li><strong>Ph\u00f9 h\u1ee3p c\u1ef1c m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn<\/strong>: Lu\u00f4n c\u0103n ch\u1ec9nh c\u00e1c c\u1ef1c \u0111\u1ed1i l\u1eadp (b\u1eafc v\u1edbi nam) khi b\u1ea1n mu\u1ed1n nam ch\u00e2m h\u00fat nhau. \u0110\u1ec3 \u0111\u1ea9y nhau, c\u0103n ch\u1ec9nh c\u00e1c c\u1ef1c c\u00f9ng lo\u1ea1i (b\u1eafc v\u1edbi b\u1eafc ho\u1eb7c nam v\u1edbi nam).<\/li>\n<li><strong>Gi\u1eef kho\u1ea3ng c\u00e1ch ph\u00f9 h\u1ee3p<\/strong>: Gi\u1eef nam ch\u00e2m \u1edf kho\u1ea3ng c\u00e1ch \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t \u0111\u1ec3 tr\u00e1nh l\u1ef1c t\u1eeb y\u1ebfu ho\u1eb7c kh\u00f4ng \u0111\u1ec1u.<\/li>\n<li><strong>S\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 c\u0103n ch\u1ec9nh<\/strong>: La b\u00e0n ho\u1eb7c b\u1ed9 xem tr\u01b0\u1eddng t\u1eeb c\u00f3 th\u1ec3 gi\u00fap x\u00e1c nh\u1eadn h\u01b0\u1edbng \u0111\u00fang.<\/li>\n<li><strong>C\u1ed1 \u0111\u1ecbnh nam ch\u00e2m ch\u1eafc ch\u1eafn<\/strong>: Ng\u0103n ch\u1eb7n di chuy\u1ec3n trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, tr\u00e1nh g\u00e2y sai l\u1ec7ch v\u00e0 gi\u1ea3m hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n<p>Tr\u00e1nh nhi\u1ec5u v\u00e0 duy tr\u00ec hi\u1ec7u qu\u1ea3 t\u1eeb cao bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Tr\u00e1nh xa c\u00e1c nam ch\u00e2m ho\u1eb7c kim lo\u1ea1i kh\u00e1c<\/strong> g\u1ea7n thi\u1ebft l\u1eadp c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m nhi\u1ec5u tr\u01b0\u1eddng t\u1eeb.<\/li>\n<li><strong>Ch\u1ed1ng nhi\u1ec5u \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m<\/strong> \u0111\u1ec3 ng\u0103n ch\u1eb7n nhi\u1ec5u t\u1eeb.<\/li>\n<li><strong>Ki\u1ec3m tra d\u1ea5u hi\u1ec7u m\u1ea5t t\u1eeb t\u00ednh<\/strong>, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb m\u1ea1nh.<\/li>\n<\/ul>\n<p>N\u1ebfu g\u1eb7p v\u1ea5n \u0111\u1ec1 l\u1ec7ch h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m, h\u00e3y th\u1eed c\u00e1c c\u00e1ch s\u1eeda sau:<\/p>\n<ul>\n<li><strong>Ki\u1ec3m tra l\u1ea1i c\u1ef1c b\u1eb1ng la b\u00e0n<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u01b0\u1edbng \u0111\u00fang.<\/li>\n<li><strong>\u0110i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed v\u1eadt l\u00fd<\/strong> \u0111\u1ec3 kh\u00f4i ph\u1ee5c c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng ch\u00ednh x\u00e1c.<\/li>\n<li><strong>S\u1eed d\u1ee5ng m\u00e3 m\u00e0u ho\u1eb7c nh\u00e3n d\u00e1n<\/strong> \u0111\u1ec3 tr\u00e1nh sai s\u00f3t trong qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp.<\/li>\n<li><strong>Thay th\u1ebf nam ch\u00e2m c\u00f3 d\u1ea5u hi\u1ec7u h\u01b0 h\u1ecfng ho\u1eb7c y\u1ebfu \u0111i<\/strong> \u0111\u1ec3 tr\u00e1nh l\u00e0m l\u1ec7ch t\u00ednh ch\u1ea5t h\u01b0\u1edbng c\u1ee7a ch\u00fang.<\/li>\n<\/ul>\n<p>Vi\u1ec7c l\u00e0m theo c\u00e1c b\u01b0\u1edbc n\u00e0y gi\u00fap t\u1ed1i \u0111a h\u00f3a c\u00f4ng su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a nam ch\u00e2m c\u1ee7a b\u1ea1n, d\u00f9 d\u00f9ng cho m\u1ee5c \u0111\u00edch h\u00e0ng ng\u00e0y hay \u1ee9ng d\u1ee5ng chuy\u00ean nghi\u1ec7p.<\/p>\n<h2>Ti\u1ebfn b\u1ed9 v\u00e0 \u0110\u1ed5i m\u1edbi trong C\u00f4ng ngh\u1ec7 H\u01b0\u1edbng T\u1eeb Tr\u01b0\u1eddng<\/h2>\n<p>C\u00f4ng ngh\u1ec7 h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng \u0111ang ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, v\u1edbi c\u00e1c v\u1eadt li\u1ec7u m\u1edbi v\u00e0 k\u1ef9 thu\u1eadt s\u1ea3n xu\u1ea5t c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m so\u00e1t. Xu h\u01b0\u1edbng g\u1ea7n \u0111\u00e2y t\u1eadp trung v\u00e0o ph\u00e1t tri\u1ec3n nam ch\u00e2m c\u00f3 t\u00ednh n\u0103ng h\u01b0\u1edbng ch\u00ednh x\u00e1c cao, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng cho c\u00e1c ng\u00e0nh nh\u01b0 \u0111i\u1ec7n t\u1eed, \u00f4 t\u00f4 v\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o.<\/p>\n<p>NBAEM \u0111\u00e3 \u0111i \u0111\u1ea7u trong c\u00e1c \u0111\u1ed5i m\u1edbi n\u00e0y. Nh\u1eefng \u0111\u1ed9t ph\u00e1 m\u1edbi nh\u1ea5t c\u1ee7a h\u1ecd bao g\u1ed3m c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t nam ch\u00e2m h\u01b0\u1edbng ti\u00ean ti\u1ebfn n\u00e2ng cao kh\u1ea3 n\u0103ng c\u0103n ch\u1ec9nh tr\u01b0\u1eddng t\u1eeb, \u0111\u1ea3m b\u1ea3o l\u1ef1c t\u1eeb m\u1ea1nh h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n. Nh\u1eefng c\u1ea3i ti\u1ebfn n\u00e0y gi\u00fap t\u1ea1o ra c\u00e1c nam ch\u00e2m chuy\u00ean d\u1ee5ng ph\u00f9 h\u1ee3p cho c\u1ea3m bi\u1ebfn, \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n v\u00e0 b\u1ed9 ph\u00e2n t\u00e1ch t\u1eeb, n\u00e2ng cao hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 H\u01b0\u1edbng T\u1eeb Nam Ch\u00e2m<\/h2>\n<h3>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00f4i bi\u1ebft m\u1eb7t n\u00e0o c\u1ee7a nam ch\u00e2m l\u00e0 ph\u00eda b\u1eafc<\/h3>\n<p>B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm c\u1ef1c B\u1eafc c\u1ee7a m\u1ed9t nam ch\u00e2m b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t chi\u1ebfc la b\u00e0n \u0111\u01a1n gi\u1ea3n. \u0110\u1ea7u ph\u00eda B\u1eafc c\u1ee7a kim la b\u00e0n b\u1ecb h\u00fat v\u1ec1 ph\u00eda c\u1ef1c Nam c\u1ee7a nam ch\u00e2m, v\u00ec v\u1eady \u0111\u1ea7u c\u00f2n l\u1ea1i c\u1ee7a kim ch\u1ec9 v\u1ec1 ph\u00eda c\u1ef1c B\u1eafc c\u1ee7a nam ch\u00e2m. M\u1ed9t c\u00e1ch d\u1ec5 kh\u00e1c l\u00e0 d\u00f9ng b\u1ee5i s\u1eaft\u2014ch\u00fang c\u00f3 xu h\u01b0\u1edbng t\u1ee5 l\u1ea1i \u1edf c\u1ea3 hai c\u1ef1c\u2014nh\u01b0ng \u0111\u00e1nh d\u1ea5u ph\u00eda ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ea7u ph\u00eda Nam c\u1ee7a kim la b\u00e0n l\u00e0 m\u1ed9t quy t\u1eafc chung t\u1ed1t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u1ef1c B\u1eafc c\u1ee7a nam ch\u00e2m.<\/p>\n<h3>C\u00e1c h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo th\u1eddi gian ho\u1eb7c khi s\u1eed d\u1ee5ng kh\u00f4ng<\/h3>\n<p>C\u00f3, h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m c\u00f3 th\u1ec3 d\u1ecbch chuy\u1ec3n, \u0111\u1eb7c bi\u1ec7t n\u1ebfu nam ch\u00e2m ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, va \u0111\u1eadp v\u1eadt l\u00fd ho\u1eb7c c\u00e1c tr\u01b0\u1eddng t\u1eeb kh\u00e1c. Theo th\u1eddi gian, nam ch\u00e2m c\u0169ng c\u00f3 th\u1ec3 m\u1ea5t \u0111i \u0111\u1ed9 m\u1ea1nh ho\u1eb7c thay \u0111\u1ed5i nh\u1eb9 c\u00e1c c\u1ef1c c\u1ee7a n\u00f3 do m\u00e0i m\u00f2n ho\u1eb7c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng. Tuy nhi\u00ean, c\u00e1c nam ch\u00e2m c\u00f4ng nghi\u1ec7p ch\u1ea5t l\u01b0\u1ee3ng cao, nh\u01b0 c\u1ee7a NBAEM, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1eef \u1ed5n \u0111\u1ecbnh t\u00ednh ch\u1ea5t h\u01b0\u1edbng c\u1ee7a ch\u00fang trong th\u1eddi gian d\u00e0i s\u1eed d\u1ee5ng.<\/p>\n<h3>Nam ch\u00e2m n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ecbnh h\u01b0\u1edbng<\/h3>\n<p>\u0110\u1ec3 c\u00f3 h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m nh\u1ea5t qu\u00e1n v\u00e0 \u0111\u00e1ng tin c\u1eady, c\u00e1c nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm nh\u01b0 nam ch\u00e2m neodymium l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn v\u00ec ch\u00fang cung c\u1ea5p tr\u01b0\u1eddng t\u1eeb m\u1ea1nh, \u1ed5n \u0111\u1ecbnh. Nam ch\u00e2m g\u1ed1m s\u1ee9 c\u00f3 gi\u00e1 th\u00e0nh ph\u1ea3i ch\u0103ng h\u01a1n v\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, nh\u01b0ng ch\u00fang y\u1ebfu h\u01a1n v\u00e0 d\u1ec5 b\u1ecb d\u1ecbch chuy\u1ec3n h\u01a1n. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ch\u00ednh x\u00e1c ho\u1eb7c c\u1ea3m bi\u1ebfn, ch\u1ecdn c\u00e1c nam ch\u00e2m \u0111i k\u00e8m v\u1edbi nh\u00e3n r\u00f5 r\u00e0ng v\u1ec1 c\u1ef1c t\u1eeb v\u00e0 t\u00ednh \u1ed5n \u0111\u1ecbnh h\u01b0\u1edbng, nh\u01b0 c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a NBAEM.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1ch x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 c\u1ef1c c\u1ee7a nam ch\u00e2m v\u1edbi c\u00e1c m\u1eb9o chuy\u00ean gia v\u1ec1 h\u01b0\u1edbng tr\u01b0\u1eddng t\u1eeb v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf t\u1eeb NBAEM, nh\u00e0 cung c\u1ea5p nam ch\u00e2m \u0111\u00e1ng tin c\u1eady.<\/p>","protected":false},"author":1,"featured_media":2979,"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-2980","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/magnet_directions_tZwhsZTQm.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2980","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=2980"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2980\/revisions"}],"predecessor-version":[{"id":2982,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2980\/revisions\/2982"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/2979"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=2980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=2980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=2980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}