{"id":3858,"date":"2026-06-09T07:15:16","date_gmt":"2026-06-09T07:15:16","guid":{"rendered":"https:\/\/nbaem.com\/?p=3858"},"modified":"2026-05-27T08:33:03","modified_gmt":"2026-05-27T08:33:03","slug":"magnetic-area","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/magnetic-area\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn Khu v\u1ef1c Nam ch\u00e2m C\u01b0\u1eddng \u0111\u1ed9 Tr\u01b0\u1eddng v\u00e0 V\u1eadt li\u1ec7u Nam ch\u00e2m"},"content":{"rendered":"<p>M\u1ecdi c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i mang t\u00ednh c\u00e1ch m\u1ea1ng \u2014 t\u1eeb h\u1ec7 truy\u1ec1n \u0111\u1ed9ng EV \u0111\u1ebfn c\u1ea3m bi\u1ebfn y t\u1ebf ch\u00ednh x\u00e1c \u2014 \u0111\u1ec1u d\u1ef1a tr\u00ean m\u1ed9t ngu\u1ed3n s\u1ee9c m\u1ea1nh v\u00f4 h\u00ecnh: v\u00f9ng t\u1eeb <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong>.<\/p>\n<p>Nh\u01b0ng \u1edf \u0111\u00e2y c\u00f3 m\u1ed9t \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd: nh\u1eefng g\u00ec c\u00e1c k\u1ef9 s\u01b0 v\u00e0 ng\u01b0\u1eddi mua k\u1ef9 thu\u1eadt xem th\u01b0\u1eddng g\u1ecdi l\u00e0 m\u1ed9t <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> th\u1ef1c ch\u1ea5t l\u00e0 m\u1ed9t khu v\u1ef1c \u0111\u1ed9ng, v\u00f4 c\u00f9ng ph\u1ee9c t\u1ea1p<a href=\"https:\/\/en.wikipedia.org\/wiki\/Magnetic_field\" target=\"_blank\" rel=\"noopener\"> <strong>tr\u01b0\u1eddng t\u1eeb<\/strong><\/a>. N\u1ebfu b\u1ea1n t\u00ednh to\u00e1n sai ranh gi\u1edbi c\u1ee7a n\u00f3, ho\u1eb7c gh\u00e9p n\u00f3 v\u1edbi ch\u1ea5t <strong>v\u1eadt li\u1ec7u s\u1eaft t\u1eeb<\/strong>, hi\u1ec7u qu\u1ea3 c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 b\u1ecb s\u1ee5p \u0111\u1ed5.<\/p>\n<p>T\u1ed1i \u01b0u h\u00f3a ch\u1ee9c n\u0103ng n\u00e0y <strong>v\u00f9ng l\u1ef1c t\u1eeb c\u00f3 t\u00ednh ch\u1ee9c n\u0103ng<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ec1 b\u1ed1 tr\u00ed kh\u00f4ng gian; n\u00f3 \u0111\u00f2i h\u1ecfi m\u1ed9t ph\u00e9p t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a <strong>gi\u00e1 tr\u1ecb m\u1eadt \u0111\u1ed9 flux t\u1eeb<\/strong> v\u00e0 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u chi\u1ebfn l\u01b0\u1ee3c. Cho d\u00f9 b\u1ea1n c\u1ea7n c\u00f4ng su\u1ea5t th\u00f4 c\u1ee7a <strong>nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm<\/strong> nh\u01b0 <strong>Nam ch\u00e2m neodymium (NdFeB)<\/strong> ho\u1eb7c s\u1ef1 ch\u1ecbu nhi\u1ec7t c\u1ef1c cao c\u1ee7a <strong>Nam ch\u00e2m Samarium Cobalt (SmCo)<\/strong>, vi\u1ec7c ch\u1ecdn ch\u1ea5t n\u1ec1n ph\u00f9 h\u1ee3p s\u1ebd l\u00e0m m\u1ecdi th\u1ee9 \u0111\u1ed5i kh\u00e1c.<\/p>\n<p>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, ch\u00fang t\u00f4i s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft v\u1eadt l\u00fd x\u00e1c \u0111\u1ecbnh m\u1ed9t <strong>tr\u01b0\u1eddng t\u1eeb<\/strong>, ph\u00e1c th\u1ea3o c\u00e1ch kh\u00e1c nhau <strong>v\u0129nh vi\u1ec5n<\/strong> thay \u0111\u1ed5i h\u00ecnh h\u1ecdc tr\u01b0\u1eddng c\u1ee7a b\u1ea1n, v\u00e0 cho b\u1ea1n th\u1ea5y c\u00e1ch thi\u1ebft k\u1ebf v\u00f9ng \u1ea3nh h\u01b0\u1edfng t\u1ed1i \u01b0u cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p>\n<p>H\u00e3y b\u1eaft \u0111\u1ea7u ngay th\u00f4i.<\/p>\n<p>B\u1ea1n c\u00f3 t\u1eebng t\u1ef1 h\u1ecfi t\u1ea1i sao m\u1ed9t nam ch\u00e2m k\u00e9o m\u1ea1nh t\u1ea1i m\u1ed9t v\u1ecb tr\u00ed x\u00e1c \u0111\u1ecbnh, nh\u01b0ng ch\u1ec9 ghi nh\u1eadn r\u1ea5t nh\u1eb9 c\u00e1ch v\u00e0i inch \u0111i xa? Ch\u00fang t\u00f4i nghe t\u1eeb c\u00e1c k\u1ef9 s\u01b0 h\u00e0ng ng\u00e0y ng\u01b0\u1eddi g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c c\u00e1ch m\u00e0 ch\u00fang s\u1ebd <strong>v\u00f9ng l\u1ef1c t\u1eeb c\u00f3 t\u00ednh ch\u1ee9c n\u0103ng<\/strong> ph\u1ea3n h\u1ed3i trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. Khi b\u1ea1n thi\u1ebft k\u1ebf m\u1ed9t s\u1ea3n ph\u1ea9m, b\u1ea1n kh\u00f4ng th\u1ec3 d\u1ef1a v\u00e0o ph\u1ecfng \u0111o\u00e1n. B\u1ea1n c\u1ea7n bi\u1ebft ch\u00ednh x\u00e1c c\u00e1ch m\u00e0 c\u1ee7a b\u1ea1n <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> m\u1edf r\u1ed9ng, co l\u1ea1i, v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n xung quanh.<\/p>\n<p>H\u00e3y ph\u00e2n t\u00edch chi ti\u1ebft b\u1ea3n ch\u1ea5t v\u1eadt l\u00fd th\u1ef1c t\u1ebf c\u1ee7a vi\u1ec7c \u00e1nh x\u1ea1 v\u00f9ng n\u00e0y v\u00e0 xem x\u00e9t c\u00e1c ch\u1ec9 s\u1ed1 c\u1ed1t l\u00f5i chi ph\u1ed1i hi\u1ec7u su\u1ea5t.<\/p>\n<hr \/>\n<h3>\u00c1nh x\u1ea1 V\u00f9ng<\/h3>\n<p>\u0110\u1ec3 h\u00ecnh dung m\u1ed9t <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong>, ch\u00fang ta l\u1eadp b\u1ea3n \u0111\u1ed3 khu v\u1ef1c v\u00f4 h\u00ecnh <strong>\u0111\u01b0\u1eddng s\u1ee9c t\u1eeb<\/strong> \u0111i t\u1eeb c\u1ef1c b\u1eafc \u0111\u1ebfn c\u1ef1c nam. Khu v\u1ef1c n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111\u00e1m m\u00e2y \u0111\u1ed3ng nh\u1ea5t; n\u00f3 l\u00e0 m\u1ed9t gradient \u0111\u1ed9ng. C\u00e0ng c\u00e1c \u0111\u01b0\u1eddng c\u00e0ng g\u1ea7n nhau, l\u1ef1c v\u1eadt l\u00fd c\u00e0ng m\u1ea1nh. Khi ch\u00fang ta thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng t\u00f9y ch\u1ec9nh, vi\u1ec7c \u00e1nh x\u1ea1 kh\u00f4ng gian 3D n\u00e0y cho ph\u00e9p ch\u00fang ta d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c n\u01a1i m\u1ed9t th\u00e0nh ph\u1ea7n s\u1ebd tham gia ho\u1eb7c gi\u1ea3i ph\u00f3ng.<\/p>\n<p>[H\u00ecnh \u1ea3nh c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng xung quanh nam ch\u00e2m v\u0129nh c\u1eedu]<\/p>\n<hr \/>\n<h3>C\u00e1c Ch\u1ec9 S\u1ed1 Ch\u00ednh \u0110\u1ecbnh Ngh\u0129a Khu V\u1ef1c Nam Ch\u00e2m<\/h3>\n<p>B\u1ea1n kh\u00f4ng th\u1ec3 qu\u1ea3n l\u00fd nh\u1eefng g\u00ec b\u1ea1n kh\u00f4ng \u0111o \u0111\u01b0\u1ee3c. Khi ch\u00fang ta \u0111\u00e1nh gi\u00e1 m\u1ed9t <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, ch\u00fang ta t\u1eadp trung v\u00e0o ba ch\u1ec9 s\u1ed1 kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng:<\/p>\n<ul>\n<li><strong>N\u1ed3ng \u0111\u1ed9 t\u1eeb th\u00f4ng<\/strong> \u0110\u01b0\u1ee3c \u0111o b\u1eb1ng Gauss ho\u1eb7c Tesla, \u0111i\u1ec1u n\u00e0y cho bi\u1ebft m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng t\u1eeb tr\u01b0\u1eddng th\u1ef1c s\u1ef1 \u0111ang \u0111i qua m\u1ed9t di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ee5 th\u1ec3.<\/li>\n<li><strong>C\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng:<\/strong> \u0110i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng n\u1ed9i t\u1ea1i c\u1ee7a nam ch\u00e2m \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c l\u1ef1c l\u00e0m m\u1ea5t t\u1eeb v\u00e0 duy tr\u00ec \u0111\u1ed9 ph\u1ee7 c\u1ee7a n\u00f3.<\/li>\n<li><strong>L\u1ef1c gi\u1eef:<\/strong> Tr\u1ecdng l\u01b0\u1ee3ng \u0111\u1ec9nh v\u1eadt l\u00fd m\u00e0 nam ch\u00e2m c\u00f3 th\u1ec3 k\u00e9o khi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi <strong>v\u1eadt li\u1ec7u s\u1eaft t\u1eeb<\/strong>.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u0110\u01a1n v\u1ecb<\/th>\n<th style=\"text-align: left;\">Nh\u1eefng g\u00ec n\u00f3 \u0111o<\/th>\n<th style=\"text-align: left;\">T\u1ea1i sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>N\u0103ng l\u01b0\u1ee3ng t\u1eeb (Gauss)<\/strong><\/td>\n<td style=\"text-align: left;\">N\u1ed3ng \u0111\u1ed9 tr\u01b0\u1eddng<\/td>\n<td style=\"text-align: left;\">X\u00e1c \u0111\u1ecbnh k\u00edch ho\u1ea1t c\u1ea3m bi\u1ebfn v\u00e0 \u0111i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>C\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng (A\/m)<\/strong><\/td>\n<td style=\"text-align: left;\">S\u1ee9c m\u1ea1nh t\u1eeb l\u00f5i<\/td>\n<td style=\"text-align: left;\">\u0110\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>L\u1ef1c gi\u1eef (lbs\/kg)<\/strong><\/td>\n<td style=\"text-align: left;\">L\u1ef1c nhanh thu\u1ea7n c\u01a1<\/td>\n<td style=\"text-align: left;\">Ch\u1ec9 th\u1ecb cho s\u1ee9c n\u00e2ng t\u1ea3i c\u1ee7a h\u1ec7 th\u1ed1ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>Vai tr\u00f2 c\u1ee7a kho\u1ea3ng c\u00e1ch<\/h3>\n<p>Kho\u1ea3ng c\u00e1ch l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh cu\u1ed1i c\u00f9ng trong thi\u1ebft k\u1ebf t\u1eeb tr\u01b0\u1eddng. L\u1ef1c t\u1eeb kh\u00f4ng gi\u1ea3m theo m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng d\u1ef1 \u0111o\u00e1n tr\u01b0\u1edbc. Thay v\u00e0o \u0111\u00f3, n\u00f3 tu\u00e2n theo \u0111\u1ecbnh lu\u1eadt b\u00ecnh ph\u01b0\u01a1ng ngh\u1ecbch.<\/p>\n<ul>\n<li><strong>Tr\u01b0\u1eddng g\u1ea7n:<\/strong> M\u1eadt \u0111\u1ed9 c\u1ef1c k\u1ef3 cao, nh\u01b0ng gi\u1ea3m theo c\u1ea5p s\u1ed1 v\u1edbi kho\u1ea3ng kh\u00f4ng h\u1edf nh\u1ecf nh\u1ea5t.<\/li>\n<li><strong>Tr\u01b0\u1eddng xa:<\/strong> Ph\u00e1t huy t\u1ed1i gi\u1ea3n n\u01a1i nh\u1eefng \u0111i\u1ec1u ch\u1ec9nh nh\u1ecf v\u1ec1 kho\u1ea3ng c\u00e1ch c\u00f3 t\u00e1c \u0111\u1ed9ng \u00edt m\u1ea1nh h\u01a1n \u0111\u1ebfn hi\u1ec7u su\u1ea5t.<\/li>\n<\/ul>\n<p>N\u1ebfu b\u1ea1n t\u00ednh to\u00e1n sai khe h\u1edf v\u1eadn h\u00e0nh c\u1ee7a b\u1ea1n ch\u1ec9 b\u1eb1ng m\u1ed9t ph\u1ea7n milimet, b\u1ea1n <strong>\u0111\u1ed9 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/strong> c\u00f3 th\u1ec3 gi\u1ea3m m\u1ed9t n\u1eeda, l\u00e0m cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n tr\u1edf n\u00ean v\u00f4 d\u1ee5ng. Hi\u1ec3u \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng cong gi\u1ea3m n\u00e0y l\u00e0 b\u00ed quy\u1ebft \u0111\u1ec3 thi\u1ebft k\u1ebf c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb t\u00ednh \u0111\u00e1ng tin c\u1eady, c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c.<\/p>\n<h2>C\u00e1ch th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u h\u00ecnh th\u00e0nh khu v\u1ef1c t\u1eeb t\u00ednh<\/h2>\n<p>Ph\u1ea1m vi, s\u1ee9c m\u1ea1nh v\u00e0 to\u00e0n b\u1ed9 d\u1ea5u ch\u00e2n c\u1ee7a m\u1ed9t <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o th\u00e0nh ph\u1ea7n th\u00f4 b\u00ean trong nam ch\u00e2m. B\u1eb1ng c\u00e1ch ch\u1ecdn c\u00e1c v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh vi\u1ec5n c\u1ee5 th\u1ec3, ch\u00fang ta c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf \u0111\u00fang v\u00f9ng l\u1ef1c t\u1eeb c\u1ea7n thi\u1ebft cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<\/p>\n<hr \/>\n<h3>1. Nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm: C\u01b0\u1eddng \u0111\u1ed9 t\u1ed1i \u0111a trong kh\u00f4ng gian t\u1ed1i thi\u1ec3u<\/h3>\n<p>Khi m\u1ed9t \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi c\u01b0\u1eddng \u0111\u1ed9 cao <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> nh\u01b0ng \u0111\u1ed1i m\u1eb7t v\u1edbi h\u1ea1n ch\u1ebf kh\u00f4ng gian nghi\u00eam ng\u1eb7t, nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm l\u00e0 l\u1ef1a ch\u1ecdn quy\u1ebft \u0111\u1ecbnh.<\/p>\n<ul>\n<li><strong>Nam ch\u00e2m Neodymium (NdFeB):<\/strong> Nh\u1eefng nam ch\u00e2m n\u00e0y cung c\u1ea5p m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng cao nh\u1ea5t hi\u1ec7n c\u00f3 ng\u00e0y nay. Ch\u00fang ph\u00f3ng ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb th\u01b0a, m\u1ea1nh m\u1ebd v\u00f4 c\u00f9ng <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> g\u1ea7n m\u1eb7t nam ch\u00e2m, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean thi\u1ebft y\u1ebfu cho c\u1ea3m bi\u1ebfn nh\u1ecf g\u1ecdn, \u0111\u1ed9ng c\u01a1 hi\u1ec7u su\u1ea5t cao v\u00e0 \u0111i\u1ec7n t\u1eed ti\u00ean ti\u1ebfn.<\/li>\n<li><strong>Nam ch\u00e2m Samarium Cobalt (SmCo):<\/strong> D\u00f9 \u00edt m\u1ea1nh h\u01a1n ch\u00fat so v\u1edbi neodymium, nam ch\u00e2m SmCo duy tr\u00ec \u1ed5n \u0111\u1ecbnh <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb t\u00ednh tuy\u1ec7t v\u1eddi v\u00e0 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<\/ul>\n<hr \/>\n<h3>2. C\u00e1c v\u1eadt li\u1ec7u t\u1eeb t\u00ednh truy\u1ec1n th\u1ed1ng: Chi ph\u00ed h\u1ee3p l\u00fd, Ph\u1ee7 s\u00f3ng r\u1ed9ng<\/h3>\n<p>Kh\u00f4ng ph\u1ea3i m\u1ecdi d\u1ef1 \u00e1n \u0111\u1ec1u y\u00eau c\u1ea7u c\u01b0\u1eddng \u0111\u1ed9 c\u1ee5c b\u1ed9 cao. \u0110\u1ed1i v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng nam ch\u00e2m c\u00f4ng nghi\u1ec7p quy m\u00f4 l\u1edbn, c\u00e1c v\u1eadt li\u1ec7u truy\u1ec1n th\u1ed1ng mang l\u1ea1i l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf h\u01a1n \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong>.<\/p>\n<ul>\n<li><strong>Nam ch\u00e2m Ferro (G\u1ed1m):<\/strong> Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng r\u1ed9ng, xuy\u00ean th\u1ea5u s\u00e2u <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> v\u1edbi chi ph\u00ed \u1edf m\u1ee9c ph\u1ea7n nh\u1ecf so v\u1edbi chi ph\u00ed. Ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao v\u00e0 xu\u1ea5t s\u1eafc trong vi\u1ec7c b\u1eaft c\u00e1c t\u1ea1p ch\u1ea5t s\u1eaft tr\u00ean c\u00e1c d\u00e2y chuy\u1ec1n v\u1eadn chuy\u1ec3n r\u1ed9ng<\/li>\n<li><strong>Nam ch\u00e2m Alnico:<\/strong> \u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng cao \u1edf tr\u1ee5c c\u1ee7a ch\u00fang, h\u1ee3p kim alnico l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng chuy\u00ean bi\u1ec7t nh\u01b0 <a href=\"https:\/\/nbaem.com\/vi\/permanent-magnet-generators\/\">m\u00e1y ph\u00e1t nam ch\u00e2m v\u0129nh c\u1eedu<\/a> n\u01a1i s\u1ef1 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Lo\u1ea1i nam ch\u00e2m<\/th>\n<th style=\"text-align: left;\">C\u01b0\u1eddng \u0110\u1ed9 T\u1eeb Tr\u01b0\u1eddng<\/th>\n<th style=\"text-align: left;\">Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed<\/th>\n<th style=\"text-align: left;\">Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>NdFeB Neodymium<\/strong><\/td>\n<td style=\"text-align: left;\">Si\u00eau Cao<\/td>\n<td style=\"text-align: left;\">V\u1eeba ph\u1ea3i<\/td>\n<td style=\"text-align: left;\">Th\u1ea5p \u0111\u1ebfn Trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Cobalt Samari (SmCo)<\/strong><\/td>\n<td style=\"text-align: left;\">Cao<\/td>\n<td style=\"text-align: left;\">T\u1ed1t Nh\u1ea5t \/ Cao c\u1ea5p<\/td>\n<td style=\"text-align: left;\">R\u1ea5t cao<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ferrite (G\u1ed1m)<\/strong><\/td>\n<td style=\"text-align: left;\">Th\u1ea5p \u0111\u1ebfn Trung b\u00ecnh<\/td>\n<td style=\"text-align: left;\">Xu\u1ea5t s\u1eafc<\/td>\n<td style=\"text-align: left;\">Cao<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Alnico<\/strong><\/td>\n<td style=\"text-align: left;\">Trung b\u00ecnh \u0111\u1ebfn Cao<\/td>\n<td style=\"text-align: left;\">V\u1eeba ph\u1ea3i<\/td>\n<td style=\"text-align: left;\">Si\u00eau Cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u00fang \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> ph\u00f9 h\u1ee3p v\u1edbi c\u1ea3 gi\u1edbi h\u1ea1n kh\u00f4ng gian v\u00e0 m\u1ee5c ti\u00eau hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch ho\u00e0n h\u1ea3o.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 c\u00f4ng nghi\u1ec7p \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a Khu v\u1ef1c T\u1eeb<\/h2>\n<p>A <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t tr\u1ea1ng th\u00e1i c\u00f4 l\u1eadp. Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p n\u1eb7ng, duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh <strong>v\u00f9ng l\u1ef1c t\u1eeb c\u00f3 t\u00ednh ch\u1ee9c n\u0103ng<\/strong> ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 v\u1eadt l\u00fd b\u00ean ngo\u00e0i. N\u1ebfu b\u1ea1n kh\u00f4ng t\u00ednh \u0111\u1ebfn h\u00ecnh h\u1ecdc, nhi\u1ec7t v\u00e0 c\u00e1c tr\u01b0\u1eddng \u0111\u1ed1i l\u1eadp, hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh c\u1ee7a b\u1ea1n s\u1ebd suy gi\u1ea3m.<\/p>\n<h3>Thi\u1ebft k\u1ebf h\u00ecnh h\u1ecdc &amp; H\u00ecnh d\u1ea1ng<\/h3>\n<p>H\u00ecnh d\u1ea1ng v\u1eadt l\u00fd c\u1ee7a nam ch\u00e2m v\u0129nh c\u1eedu quy\u1ebft \u0111\u1ecbnh c\u00e1ch n\u00f3 <strong>\u0111\u01b0\u1eddng s\u1ee9c t\u1eeb<\/strong> ph\u00e2n b\u1ed1 tr\u00ean m\u1ed9t kh\u00f4ng gian m\u1ee5c ti\u00eau. C\u00e1c kh\u1ed1i ti\u00eau chu\u1ea9n, \u0111\u0129a v\u00e0 v\u00f2ng cho th\u1ea5y h\u1ed3 s\u01a1 tr\u01b0\u1eddng kh\u00e1c nhau ho\u00e0n to\u00e0n.<\/p>\n<ul>\n<li><strong>G\u00f3c nh\u1ecdn:<\/strong> C\u00f3 th\u1ec3 g\u00e2y t\u1eadp trung tr\u01b0\u1eddng c\u1ee5c b\u1ed9 nh\u01b0ng d\u1ec5 b\u1ecb s\u1ee9t m\u1ebb.<\/li>\n<li><strong>H\u1ed3 s\u01a1 bo tr\u00f2n:<\/strong> Gi\u00fap t\u1ed1i \u01b0u h\u00f3a <strong>gi\u00e1 tr\u1ecb m\u1eadt \u0111\u1ed9 flux t\u1eeb<\/strong> tr\u00ean m\u1ed9t di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t \u0111\u1ed3ng \u0111\u1ec1u.<\/li>\n<li><strong>\u0110\u1ed9 d\u00e0y vs. Chi\u1ec1u r\u1ed9ng:<\/strong> Nam ch\u00e2m d\u00e0y h\u01a1n \u0111\u1ea9y <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> xa h\u01a1n, trong khi nam ch\u00e2m r\u1ed9ng h\u01a1n t\u1ea1o ra tr\u01b0\u1eddng r\u1ed9ng h\u01a1n nh\u01b0ng n\u00f4ng h\u01a1n.<\/li>\n<\/ul>\n<h3>Nhi\u1ec7t \u0111\u1ed9 &amp; \u1ed4n \u0111\u1ecbnh nhi\u1ec7t<\/h3>\n<p>Nhi\u1ec7t l\u00e0 k\u1ebb th\u00f9 cu\u1ed1i c\u00f9ng c\u1ee7a hi\u1ec7u qu\u1ea3 t\u1eeb t\u00ednh. M\u1ecdi v\u1eadt li\u1ec7u \u0111\u1ec1u c\u00f3 ng\u01b0\u1ee1ng c\u1ee5 th\u1ec3 t\u1ea1i \u0111\u00f3 n\u00f3 b\u1eaft \u0111\u1ea7u m\u1ea5t \u0111i s\u1ef1 b\u00e1m<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Lo\u1ea1i nam ch\u00e2m<\/th>\n<th style=\"text-align: left;\">Nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh t\u1ed1i \u0111a<\/th>\n<th style=\"text-align: left;\">Y\u1ebfu t\u1ed1 r\u1ee7i ro ch\u00ednh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Nam ch\u00e2m neodymium (NdFeB)<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110\u1ebfn 80\u00b0C \u2013 230\u00b0C<\/td>\n<td style=\"text-align: left;\">M\u1ea5t flux nghi\u00eam tr\u1ecdng n\u1ebfu v\u01b0\u1ee3t qu\u00e1 x\u1ebfp h\u1ea1ng c\u01a1 s\u1edf<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Cobalt Samari (SmCo)<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110\u1ebfn 300\u00b0C \u2013 350\u00b0C<\/td>\n<td style=\"text-align: left;\">Xu\u1ea5t s\u1eafc cho <strong>nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao<\/strong> \u1ee9ng d\u1ee5ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V\u01b0\u1ee3t qu\u00e1 c\u00e1c nhi\u1ec7t \u0111\u1ed9 n\u00e0y l\u00e0m gi\u1ea3m \u0111i <strong>\u0111\u1ed9 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/strong>. N\u1ebfu ti\u1ebfp t\u1ee5c v\u01b0\u1ee3t qua <strong>nhi\u1ec7t \u0111\u1ed9 Curie<\/strong>, thi\u1ec7t h\u1ea1i tr\u1edf n\u00ean v\u0129nh vi\u1ec5n, ho\u00e0n to\u00e0n ph\u00e1 h\u1ecfng <strong>v\u00f9ng l\u1ef1c t\u1eeb c\u00f3 t\u00ednh ch\u1ee9c n\u0103ng<\/strong>.<\/p>\n<h3>T\u00ednh d\u1ec5 b\u1ecb gi\u1ea3m nam ch\u00e2m<\/h3>\n<p>Trong m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p, nam ch\u00e2m th\u01b0\u1eddng xuy\u00ean ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi s\u1ef1 kh\u00e1ng c\u1ef1 b\u00ean ngo\u00e0i kh\u1eafc nghi\u1ec7t. C\u00e1c bi\u1ebfn \u0111\u1ed9ng \u0111i\u1ec7n m\u1ea1nh, va \u0111\u1eadp v\u1eadt l\u00fd v\u00e0 c\u00e1c tr\u01b0\u1eddng t\u1eeb \u0111\u1ed1i l\u1eadp c\u00f3 th\u1ec3 l\u00e0m suy y\u1ebfu s\u1ef1 c\u0103n ch\u1ec9nh b\u00ean trong c\u1ee7a nam ch\u00e2m. L\u1ef1a ch\u1ecdn <strong>v\u0129nh vi\u1ec5n<\/strong> v\u1edbi \u0111i\u1ec7n t\u1eeb cao <strong>kh\u00e1ng demagnetization<\/strong> \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a tr\u01b0\u1eddng qua nhi\u1ec1u n\u0103m v\u1eadn h\u00e0nh li\u00ean t\u1ee5c.<\/p>\n<h2>Gi\u1ea3i ph\u00e1p K\u1ef9 thu\u1eadt: C\u00e1ch T\u1ed1i \u01b0u v\u00e0 H\u01b0\u1edbng D\u1eabn m\u1ed9t Khu v\u1ef1c T\u1eeb Tr\u01b0\u1eddng<\/h2>\n<p>Khi ch\u00fang ta thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng cho \u1ee9ng d\u1ee5ng nam ch\u00e2m c\u00f4ng nghi\u1ec7p, ngu\u1ed3n \u0111i\u1ec7n th\u00f4 kh\u00f4ng \u0111\u1ee7. B\u1ea1n ph\u1ea3i ki\u1ec3m so\u00e1t n\u01a1i ngu\u1ed3n \u0111i\u1ec7n \u0111i t\u1edbi. T\u1ed1i \u01b0u h\u00f3a v\u00e0 h\u01b0\u1edbng d\u1eabn m\u1ed9t <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> \u0111\u00f2i h\u1ecfi k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1eadp trung \u0111\u00fang t\u1ea1i n\u01a1i c\u1ea7n, t\u1ed1i thi\u1ec3u h\u00f3a l\u00e3ng ph\u00ed v\u00e0 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3.<\/p>\n<h3>T\u1eadp Trung Tr\u01b0\u1eddng<\/h3>\n<p>M\u1eadt \u0111\u1ed9 Flux t\u1eeb tr\u01b0\u1eddng kh\u00f4ng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c r\u00f2 r\u1ec9 v\u00e0o m\u00f4i tr\u01b0\u1eddng xung quanh, l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3. \u0110\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi \u0111i\u1ec1u n\u00e0y, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u ferromagnetic c\u00f3 \u0111\u1ed9 xuy\u00ean t\u1eeb cao l\u00e0m \u0111\u1ebf ho\u1eb7c v\u1ecf kim lo\u1ea1i. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t \u0111\u01b0\u1eddng \u0111i c\u00f3 \u0111\u1ed9 quay r\u1ea5t th\u1ea5p khi\u1ebfn t\u1eeb tr\u01b0\u1eddng l\u1ec7ch v\u00e0 h\u01b0\u1edbng l\u1ea1i <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong>, t\u1eadp trung khu l\u1ef1c tr\u1ef1c ti\u1ebfp v\u1ec1 m\u1ee5c ti\u00eau.<\/p>\n<p>B\u1eb1ng c\u00e1ch \u0111\u1ecbnh h\u00ecnh c\u1ef1c ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c t\u1ed5 h\u1ee3p \u0111\u1eb7c bi\u1ec7t nh\u01b0 m\u1ea3ng Halbach, ch\u00fang ta c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 m\u1ea1nh c\u1ee7a t\u1eeb tr\u01b0\u1eddng\u2014\u0111\u1ea9y b\u1eb1ng hi\u1ec7u qu\u1ea3 l\u1ef1c tr\u00ean m\u1ed9t ph\u00eda \u0111\u1ed3ng th\u1eddi tri\u1ec7t ti\u00eau \u1edf ph\u00eda b\u00ean kia.<\/p>\n<h3>Gi\u1ea3m Thi\u1ec3u Kho\u1ea3ng Tr\u1ed1ng Kh\u00f4ng Kh\u00ed<\/h3>\n<p>K\u1ebb th\u00f9 l\u1edbn nh\u1ea5t c\u1ee7a m\u1ed9t l\u1ef1c m\u1ea1nh <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> l\u00e0 khe h\u1edf kh\u00f4ng kh\u00ed. L\u1ef1c t\u1eeb gi\u1ea3m m\u1ea1nh theo kho\u1ea3ng c\u00e1ch. \u0110\u1ec3 duy tr\u00ec m\u1ed9t v\u00f9ng l\u1ef1c t\u1eeb c\u01b0\u1eddng \u0111\u1ed9 cao, kho\u1ea3ng c\u00e1ch l\u00e0m vi\u1ec7c gi\u1eefa v\u1eadt li\u1ec7u t\u1eeb t\u00ednh v\u0129nh c\u1eedu v\u00e0 m\u1ee5c ti\u00eau ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1eef \u1edf m\u1ee9c t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i.<\/p>\n<ul>\n<li><strong>T\u00e1c \u0111\u1ed9ng c\u1ee7a khe h\u1edf kh\u00f4ng kh\u00ed:<\/strong> Ngay c\u1ea3 m\u1ed9t ph\u1ea7n nh\u1ecf c\u1ee7a milim\u00e9t khe h\u1edf kh\u00f4ng kh\u00ed kh\u00f4ng c\u1ea7n thi\u1ebft c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 s\u1ee5t gi\u1ea3m l\u1edbn m\u1eadt \u0111\u1ed9 flux t\u1eeb.<\/li>\n<li><strong>Gi\u1ea3i ph\u00e1p K\u1ef9 thu\u1eadt:<\/strong> Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng v\u1ecf \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m so\u00e1t dung sai ch\u1eb7t ch\u1ebd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u0103n ch\u1ec9nh c\u01a1 h\u1ecdc ch\u00ednh x\u00e1c, b\u1ea3o t\u1ed3n c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1ed1i \u0111a.<\/li>\n<\/ul>\n<h3>M\u00f4 ph\u1ecfng t\u00f9y ch\u1ec9nh<\/h3>\n<p>Ch\u00fang t\u00f4i kh\u00f4ng d\u1ef1a v\u00e0o ph\u1ecfng \u0111o\u00e1n. Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u s\u1ea3n xu\u1ea5t v\u1eadt l\u00fd, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng Ph\u00e2n t\u00edch Finite Element (FEA) n\u00e2ng cao \u0111\u1ec3 m\u00f4 ph\u1ecfng to\u00e0n b\u1ed9 <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong>.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">L\u1ee3i \u00edch m\u00f4 ph\u1ecfng<\/th>\n<th style=\"text-align: left;\">L\u1ee3i th\u1ebf c\u00f4ng nghi\u1ec7p<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>V\u1ebd b\u1ea3n \u0111\u1ed3 d\u00f2ng t\u1eeb tr\u01b0\u1eddng<\/strong><\/td>\n<td style=\"text-align: left;\">Tr\u00ecnh b\u00e0y ch\u00ednh x\u00e1c c\u00e1ch c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng t\u1eeb t\u00ednh \u0111i qua c\u00e1c th\u00e0nh ph\u1ea7n.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>D\u1ef1 \u0111o\u00e1n nhi\u1ec7t<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf \u1ed5n \u0111\u1ecbnh \u1edf d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 Curie t\u1edbi h\u1ea1n.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>T\u1ed1i \u01b0u v\u1eadt li\u1ec7u<\/strong><\/td>\n<td style=\"text-align: left;\">C\u00e2n b\u1eb1ng gi\u1eefa vi\u1ec7c s\u1eed d\u1ee5ng nam ch\u00e2m neodymium hi\u1ec7u su\u1ea5t cao (NdFeB) v\u1edbi chi ph\u00ed c\u1ea5u tr\u00fac.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Quy tr\u00ecnh m\u00f4 ph\u1ecfng t\u00f9y ch\u1ec9nh n\u00e0y cho ph\u00e9p ch\u00fang t\u00f4i d\u1ef1 \u0111o\u00e1n kh\u1ea3 n\u0103ng kh\u00e1ng demagnetization v\u00e0 t\u1ed1i \u01b0u h\u00ecnh h\u1ecdc tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t b\u1eaft \u0111\u1ea7u, \u0111\u1ea3m b\u1ea3o m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u su\u1ea5t cao, \u0111\u00e1ng tin c\u1eady \u0111\u01b0\u1ee3c t\u00f9y bi\u1ebfn cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p>\n<h2>Cung c\u1ea5p th\u01b0\u01a1ng m\u1ea1i: H\u1ee3p t\u00e1c v\u1edbi NBAEM cho gi\u1ea3i ph\u00e1p t\u1eeb t\u00ednh ch\u00ednh x\u00e1c<\/h2>\n<h3>Gi\u1edbi thi\u1ec7u NBAEM<\/h3>\n<p>T\u1ea1i NBAEM, ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb t\u00ednh v\u0129nh vi\u1ec5n hi\u1ec7u su\u1ea5t cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 c\u00f4ng nghi\u1ec7p nghi\u00eam ng\u1eb7t. Ch\u00fang t\u00f4i ki\u1ec3m so\u00e1t to\u00e0n b\u1ed9 quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed7i nam ch\u00e2m t\u00f9y ch\u1ec9nh mang l\u1ea1i hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong> cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n. T\u1eeb nguy\u00ean m\u1eabu \u0111\u1ebfn ph\u00e2n ph\u1ed1i s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, ch\u00fang t\u00f4i cung c\u1ea5p cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p to\u00e0n c\u1ea7u c\u00e1c gi\u1ea3i ph\u00e1p t\u1eeb t\u00ednh \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng, c\u1ea3m bi\u1ebfn v\u00e0 \u0111\u1ed9ng c\u01a1 truy\u1ec1n \u0111\u1ed9ng.<\/p>\n<h3>T\u1ea1i sao c\u00e1c k\u1ef9 s\u01b0 to\u00e0n c\u1ea7u l\u1ef1a ch\u1ecdn NBAEM<\/h3>\n<p>C\u00e1c \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt to\u00e0n c\u1ea7u \u0111\u00f2i h\u1ecfi s\u1ef1 nh\u1ea5t qu\u00e1n, dung sai ch\u1eb7t ch\u1ebd, v\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh kh\u1eafc nghi\u1ec7t. Ch\u00fang t\u00f4i lo\u1ea1i b\u1ecf s\u1ef1 suy \u0111o\u00e1n b\u1eb1ng c\u00e1ch gh\u00e9p \u0111\u00fang nhu c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n v\u1edbi h\u00f3a h\u1ecdc v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p. Cho d\u00f9 b\u1ea1n c\u1ea7n so s\u00e1nh m\u1ed9t <a href=\"https:\/\/nbaem.com\/vi\/ferrite-magnet-vs-neodymium\/\">nam ch\u00e2m ferrite so v\u1edbi neodymium<\/a> cho hi\u1ec7u qu\u1ea3 chi ph\u00ed tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng, hay c\u1ea7n pha ch\u1ebf \u0111\u1eb7c bi\u1ec7t, ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u h\u00f3a.<\/p>\n<p>C\u00e1c l\u1ee3i th\u1ebf s\u1ea3n xu\u1ea5t c\u1ee7a ch\u00fang t\u00f4i bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 Ch\u00ednh X\u00e1c H\u00ecnh H\u1ecdc T\u00f9y Ch\u1ec9nh:<\/strong> C\u1ea5u h\u00ecnh h\u00ecnh h\u1ecdc t\u00f9y ch\u1ec9nh \u0111\u1ec3 t\u1eadp trung <strong>v\u00f9ng l\u1ef1c t\u1eeb c\u00f3 t\u00ednh ch\u1ee9c n\u0103ng<\/strong> v\u00e0o \u0111\u00fang n\u01a1i c\u1ea7n thi\u1ebft.<\/li>\n<li><strong>Gia C\u00f4ng N\u00e2ng Cao:<\/strong> C\u1eaft l\u00e1t, khoan v\u00e0 m\u00e0i chuy\u00ean d\u1ee5ng cho c\u00e1c thi\u1ebft k\u1ebf ph\u1ee9c t\u1ea1p m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u.<\/li>\n<li><strong>\u1ed4n \u0111\u1ecbnh nhi\u1ec7t:<\/strong> C\u00e1c gi\u1ea3i ph\u00e1p t\u1eeb t\u00ednh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 kh\u00e1ng l\u1ea1i hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t t\u1eeb \u1edf m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th style=\"text-align: left;\">L\u1ee3i \u00edch K\u1ef9 Thu\u1eadt<\/th>\n<th style=\"text-align: left;\">\u1ee8ng d\u1ee5ng Trong Ng\u00e0nh C\u00f4ng Nghi\u1ec7p To\u00e0n C\u1ea7u<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>C\u00e1c L\u1edbp NdFeB N\u00e2ng Cao<\/strong><\/td>\n<td style=\"text-align: left;\">M\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a, nh\u1ecf g\u1ecdn <strong>v\u00f9ng t\u1eeb t\u1eeb<\/strong><\/td>\n<td style=\"text-align: left;\">Xe \u0111i\u1ec7n, robot, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Gi\u1ea3i Ph\u00e1p SmCo T\u00f9y Ch\u1ec9nh<\/strong><\/td>\n<td style=\"text-align: left;\">Nhi\u1ec7t \u0111\u1ed9 Curie cao, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi<\/td>\n<td style=\"text-align: left;\">C\u1ea3m bi\u1ebfn h\u00e0ng h\u1ea3i, b\u01a1m c\u00f4ng nghi\u1ec7p n\u1eb7ng<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Gia c\u00f4ng CNC t\u1ea1i ch\u1ed7<\/strong><\/td>\n<td style=\"text-align: left;\">Dung sai m\u1ee9c micron, c\u1ea1nh kh\u00f4ng v\u1ee1<\/td>\n<td style=\"text-align: left;\">Thi\u1ebft b\u1ecb y t\u1ebf, d\u1ee5ng c\u1ee5 ch\u00ednh x\u00e1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ch\u00fang t\u00f4i t\u1ed1i \u01b0u h\u00f3a h\u00e0nh tr\u00ecnh t\u00ecm ngu\u1ed3n cung \u1ee9ng v\u1edbi d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng, chu\u1ed7i cung \u1ee9ng \u0111\u00e1ng tin c\u1eady v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt tr\u1ef1c ti\u1ebfp, \u0111\u1ea3m b\u1ea3o c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng c\u1ee7a b\u1ea1n kh\u00f4ng g\u1eb7p th\u1eddi gian ch\u1ebft.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1eeb h\u1ecdc khu v\u1ef1c t\u1eeb t\u00ednh, m\u1eadt \u0111\u1ed9 flux v\u00e0 c\u00e1ch c\u00e1c nam ch\u00e2m NdFeB SmCo ferrite NBAEM t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t c\u00f4ng nghi\u1ec7p<\/p>","protected":false},"author":1,"featured_media":1401,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2024\/11\/Xnip2024-11-19_17-01-39.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3858","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=3858"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3858\/revisions"}],"predecessor-version":[{"id":3863,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3858\/revisions\/3863"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/1401"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}