{"id":3410,"date":"2025-11-24T07:23:03","date_gmt":"2025-11-24T07:23:03","guid":{"rendered":"https:\/\/nbaem.com\/?p=3410"},"modified":"2025-11-25T03:49:48","modified_gmt":"2025-11-25T03:49:48","slug":"diametrically-magnetized-magnets-multipole-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/diametrically-magnetized-magnets-multipole-magnets\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn Hi\u1ec7u su\u1ea5t c\u1ee7a \u0110\u0129a t\u1eeb t\u00ednh \u0110\u1ed1i x\u1ee9ng v\u00e0 Nam ch\u00e2m V\u00f2ng \u0110a c\u1ef1c"},"content":{"rendered":"<h2>Gi\u1ea3i th\u00edch c\u00e1c M\u1eabu t\u1eeb tr\u01b0\u1eddng<\/h2>\n<h3>Nam ch\u00e2m \u0111\u0129a t\u1eeb t\u00ednh \u0111\u1ed1i x\u1ee9ng qua \u0111\u01b0\u1eddng k\u00ednh<\/h3>\n<ul>\n<li>T\u1eeb t\u00ednh qua \u0111\u01b0\u1eddng k\u00ednh v\u1edbi c\u1ef1c B\u1eafc - c\u1ef1c Nam r\u00f5 r\u00e0ng.<\/li>\n<li>C\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng tho\u00e1t ra kh\u1ecfi m\u1ed9t b\u00e1n c\u1ea7u v\u00e0 \u0111i v\u00e0o b\u00e1n c\u1ea7u \u0111\u1ed1i di\u1ec7n.<\/li>\n<li>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb c\u00e1c v\u1eadt li\u1ec7u hi\u1ec7u su\u1ea5t cao nh\u01b0 <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/products\/neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\">NdFeB (Neodymium S\u1eaft Boron)<\/a> <\/span><\/strong>v\u00e0 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Samarium%E2%80%93cobalt_magnet\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">SmCo (Samari Cobalt)<\/span><\/strong><\/a>.<\/li>\n<li>C\u00e1c c\u1ea5p \u0111\u1ed9 \u0111i\u1ec3n h\u00ecnh dao \u0111\u1ed9ng t\u1eeb N35 \u0111\u1ebfn N52 cho NdFeB v\u00e0 2J85 cho SmCo.<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c<\/h3>\n<ul>\n<li>C\u00f3 nhi\u1ec1u c\u1ef1c xen k\u1ebd \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp \u0111\u1ec1u quanh chu vi\u2014th\u01b0\u1eddng l\u00e0 4, 6, 8 ho\u1eb7c nhi\u1ec1u h\u01a1n c\u00e1c c\u1ef1c.<\/li>\n<li>Hai h\u01b0\u1edbng ch\u00ednh: tr\u1ee5c (c\u1ef1c h\u01b0\u1edbng d\u1ecdc theo tr\u1ee5c c\u1ee7a nam ch\u00e2m) v\u00e0 xuy\u00ean t\u00e2m (c\u1ef1c h\u01b0\u1edbng ra ngo\u00e0i theo h\u01b0\u1edbng xuy\u00ean t\u00e2m).<\/li>\n<li>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t bao g\u1ed3m nam ch\u00e2m nung k\u1ebft, mang l\u1ea1i \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao, v\u00e0 nam ch\u00e2m li\u00ean k\u1ebft, cung c\u1ea5p h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p v\u00e0 linh ho\u1ea1t.<\/li>\n<\/ul>\n<p>NBAEM chuy\u00ean cung c\u1ea5p c\u1ea3 nam ch\u00e2m \u0111\u0129a \u0111\u1ed1i x\u1ee9ng qua \u0111\u01b0\u1eddng k\u00ednh v\u00e0 nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c ch\u00ednh x\u00e1c ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p>\n<h2>So s\u00e1nh Hi\u1ec7u su\u1ea5t c\u1ee7a Tr\u01b0\u1eddng T\u1eeb<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/Diametrically_Magnetized_vs_Multipole_Ring_Magnets.webp\" alt=\"Nam ch\u00e2m ph\u00e2n c\u1ef1c \u0111\u1ed1i x\u1ee9ng so v\u1edbi Nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c\" width=\"748\" height=\"499\" \/><\/p>\n<p>Khi so s\u00e1nh <strong>nam ch\u00e2m \u0111\u0129a t\u1eeb t\u00ednh \u0111\u1ed1i x\u1ee9ng qua \u0111\u01b0\u1eddng k\u00ednh<\/strong> to <strong>nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c<\/strong>, s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 hi\u1ec7u su\u1ea5t tr\u01b0\u1eddng t\u1eeb r\u00f5 r\u00e0ng:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>Nam ch\u00e2m \u0111\u0129a t\u1eeb t\u00ednh \u0111\u1ed1i x\u1ee9ng qua \u0111\u01b0\u1eddng k\u00ednh<\/th>\n<th>Nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u0110\u1ed3ng nh\u1ea5t c\u1ee7a tr\u01b0\u1eddng<\/strong><\/td>\n<td>\u1ede m\u1ee9c trung b\u00ecnh, c\u00f3 bi\u1ebfn d\u1ea1ng \u1edf m\u00e9p<\/td>\n<td>Cao, v\u1edbi flux s\u00f3ng sin m\u01b0\u1ee3t m\u00e0<\/td>\n<\/tr>\n<tr>\n<td><strong>Chuy\u1ec3n ti\u1ebfp c\u1ef1c<\/strong><\/td>\n<td>Thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t 180\u00b0 duy nh\u1ea5t<\/td>\n<td>Nhi\u1ec1u chuy\u1ec3n ti\u1ebfp m\u01b0\u1ee3t m\u00e0 (4, 6, 8+ c\u1ef1c)<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng khe h\u1edf kh\u00f4ng kh\u00ed<\/strong><\/td>\n<td>0.4 \u2013 0.6 Tesla<\/td>\n<td>0.5 \u2013 0.8 Tesla (lo\u1ea1i 8 c\u1ef1c)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u0129a \u0111\u1ed1i x\u1ee9ng t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb r\u00f5 r\u00e0ng b\u1eafc - nam qua \u0111\u01b0\u1eddng k\u00ednh, nh\u01b0ng c\u00e1c hi\u1ec7u \u1ee9ng m\u00e9p c\u00f3 th\u1ec3 g\u00e2y ph\u00e2n b\u1ed1 flux kh\u00f4ng \u0111\u1ec1u. Ng\u01b0\u1ee3c l\u1ea1i, nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c cung c\u1ea5p <strong>\u0111\u1ed3ng b\u1ed9 tr\u01b0\u1eddng h\u01b0\u1edbng t\u00e2m<\/strong>, nh\u1edd v\u00e0o b\u1ed1 c\u1ee5c c\u1ef1c xen k\u1ebd quanh v\u00f2ng. Thi\u1ebft k\u1ebf n\u00e0y l\u00e0m m\u01b0\u1ee3t c\u00e1c chuy\u1ec3n ti\u1ebfp c\u1ef1c, mang l\u1ea1i tr\u01b0\u1eddng t\u1eeb d\u1ea1ng sin t\u1ed1t h\u01a1n, r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m rung l\u1eafc m\u00f4-men trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 \u0111\u1ed9ng c\u01a1 BLDC v\u00e0 \u0111\u1ed9ng c\u01a1 tr\u1ee5c.<\/p>\n<p>Ph\u00e2n t\u00edch ph\u1ea7n t\u1eed h\u1eefu h\u1ea1n (FEA) x\u00e1c nh\u1eadn r\u1eb1ng v\u00f2ng \u0111a c\u1ef1c cung c\u1ea5p m\u1eadt \u0111\u1ed9 flux khe h\u1edf kh\u00f4ng kh\u00ed m\u1ea1nh h\u01a1n v\u00e0 m\u01b0\u1ee3t h\u01a1n, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho c\u00e1c thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 hi\u1ec7u su\u1ea5t cao y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>\u0110\u1ec3 h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 hi\u1ec7u su\u1ea5t nam ch\u00e2m v\u00e0 c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u nh\u01b0 NdFeB, h\u00e3y xem so s\u00e1nh c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/n52-vs-n35\/\">c\u00e1c lo\u1ea1i nam ch\u00e2m N52 v\u00e0 N35<\/a><\/span><\/strong>, ph\u00e2n t\u00edch c\u00e1ch l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a tr\u01b0\u1eddng.<\/p>\n<h2>M\u00f4-men xo\u1eafn &amp; Rung l\u1eafc trong c\u00e1c \u1ee9ng d\u1ee5ng quay<\/h2>\n<p>&nbsp;<\/p>\n<p>Khi n\u00f3i \u0111\u1ebfn m\u00f4-men xo\u1eafn v\u00e0 rung l\u1eafc, \u0111\u0129a nam ch\u00e2m \u0111\u1ed1i x\u1ee9ng qua trung t\u00e2m th\u01b0\u1eddng th\u1ec3 hi\u1ec7n hi\u1ec7u \u1ee9ng rung l\u1eafc cao h\u01a1n. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p cho c\u00e1c \u0111\u1ed9ng c\u01a1 b\u01b0\u1edbc 2 c\u1ef1c c\u1ea7n gi\u1eef v\u1ecb tr\u00ed ch\u00ednh x\u00e1c nh\u01b0ng kh\u00f4ng qu\u00e1 quan tr\u1ecdng v\u1ec1 rung l\u1eafc m\u00f4-men. Chuy\u1ec3n ti\u1ebfp c\u1ef1c s\u1eafc n\u00e9t 180\u00b0 g\u00e2y ra c\u00e1c b\u01b0\u1edbc nh\u1ea3y m\u00f4-men r\u00f5 r\u00e0ng khi rotor quay.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c\u2014with c\u00e1c chuy\u1ec3n ti\u1ebfp c\u1ef1c m\u01b0\u1ee3t m\u00e0\u2014 cung c\u1ea5p m\u00f4-men xo\u1eafn g\u1ea7n nh\u01b0 b\u1eb1ng kh\u00f4ng. \u0110i\u1ec1u n\u00e0y l\u00e0m cho ch\u00fang l\u00fd t\u01b0\u1edfng cho c\u00e1c \u0111\u1ed9ng c\u01a1 servo v\u00e0 tr\u1ee5c y\u00eau c\u1ea7u quay m\u01b0\u1ee3t v\u00e0 m\u00f4-men \u1ed5n \u0111\u1ecbnh. Nh\u1edd v\u00e0o m\u1eadt \u0111\u1ed9 flux d\u1ea1ng sin, rung l\u1eafc m\u00f4-men \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u \u0111\u00e1ng k\u1ec3.<\/p>\n<p>Th\u1ef1c t\u1ebf, d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m th\u1ef1c t\u1ebf v\u00e0 c\u00f4ng th\u1ee9c rung l\u1eafc m\u00f4-men cho th\u1ea5y r\u1eb1ng nam ch\u00e2m v\u00f2ng 6 v\u00e0 8 c\u1ef1c gi\u1ea3m rung l\u1eafc m\u00f4-men l\u00ean t\u1edbi 70% so v\u1edbi \u0111\u0129a \u0111\u1ed1i x\u1ee9ng. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c \u0111\u1ed9ng c\u01a1 y\u00ean t\u0129nh h\u01a1n, hi\u1ec7u qu\u1ea3 h\u01a1n, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng BLDC hi\u1ec7u su\u1ea5t cao.<\/p>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n gi\u1ea3m rung l\u1eafc m\u00f4-men v\u00e0 chuy\u1ec3n \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0 h\u01a1n, v\u00f2ng \u0111a c\u1ef1c l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u. N\u1ebfu b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng cao h\u01a1n, d\u1eef li\u1ec7u chi ti\u1ebft c\u1ee7a <a href=\"https:\/\/nbaem.com\/vi\/samarium-cobalt-magnet-data-sheet\/\" target=\"_blank\" rel=\"noopener\">b\u1ea3ng d\u1eef li\u1ec7u nam ch\u00e2m SmCo<\/a> bao g\u1ed3m c\u00e1c t\u00f9y ch\u1ecdn ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 kh\u00f3 kh\u0103n.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 c\u01a1 kh\u00ed &amp; l\u1eafp r\u00e1p<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u00e1c \u0111\u0129a t\u1eeb tr\u01b0\u1eddng ph\u00e2n c\u1ef1c \u0111\u1ed1i l\u1eadp, ph\u01b0\u01a1ng ph\u00e1p \u00e9p ho\u1eb7c d\u00e1n keo th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Tuy nhi\u00ean, c\u00e1c \u0111\u0129a n\u00e0y y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c trong vi\u1ec7c c\u0103n ch\u1ec9nh c\u1ef1c t\u1eeb \u2014 b\u1ea5t k\u1ef3 l\u1ec7ch h\u01b0\u1edbng n\u00e0o v\u01b0\u1ee3t qu\u00e1 0,05 mm \u0111\u1ec1u c\u00f3 th\u1ec3 g\u00e2y ra gi\u1ea3m hi\u1ec7u su\u1ea5t r\u00f5 r\u1ec7t. \u0110\u1ed9 nh\u1ea1y c\u1ea3m n\u00e0y \u0111\u1ed1i v\u1edbi s\u1ef1 l\u1ec7ch c\u1ef1c t\u1eeb \u0111\u00f2i h\u1ecfi ph\u1ea3i x\u1eed l\u00fd c\u1ea9n th\u1eadn trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c t\u1eadn d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt l\u1eafp \u0111\u1eb7t ti\u00ean ti\u1ebfn h\u01a1n nh\u01b0 \u0111\u00fac nh\u1ef1a ho\u1eb7c co ng\u00f3t, mang l\u1ea1i \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u01a1 h\u1ecdc cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 t\u1ed1t h\u01a1n. NBAEM \u00e1p d\u1ee5ng gi\u1edbi h\u1ea1n dung sai ch\u1eb7t ch\u1ebd \u00b10,03 mm v\u1ec1 v\u1ecb tr\u00ed c\u1ef1c t\u1eeb cho c\u00e1c v\u00f2ng \u0111a c\u1ef1c, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a tr\u01b0\u1eddng t\u1eeb tr\u1ee5c v\u00e0 hi\u1ec7u su\u1ea5t t\u1eeb \u1ed5n \u0111\u1ecbnh. \u0110\u1ed9 ch\u00ednh x\u00e1c cao n\u00e0y gi\u1ea3m thi\u1ec3u r\u1ee7i ro trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p \u0111\u1ed9ng c\u01a1 v\u00e0 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3.<\/p>\n<p>&nbsp;<\/p>\n<h2>Ma tr\u1eadn \u1ee8ng d\u1ee5ng theo Ng\u00e0nh ngh\u1ec1<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf, vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa \u0111\u0129a t\u1eeb ph\u00e2n c\u1ef1c \u0111\u1ed1i l\u1eadp v\u00e0 nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng v\u00e0 m\u1ee5c ti\u00eau v\u1ec1 chi ph\u00ed.<\/p>\n<ul>\n<li><strong>M\u00e1y bay kh\u00f4ng ng\u01b0\u1eddi l\u00e1i:<\/strong> Nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c 6 c\u1ef1c ph\u00f9 h\u1ee3p cho \u0111\u1ed9ng c\u01a1 gimbal, mang l\u1ea1i ki\u1ec3m so\u00e1t m\u01b0\u1ee3t m\u00e0, ch\u00ednh x\u00e1c v\u1edbi m\u1ee9c gi\u1ea3m m\u00f4-men xo\u1eafn r\u0103ng c\u01b0a kho\u1ea3ng 30%. \u0110i\u1ec1u n\u00e0y gi\u00fap \u1ed5n \u0111\u1ecbnh camera t\u1ed1t h\u01a1n v\u00e0 th\u1eddi gian bay l\u00e2u h\u01a1n nh\u1edd gi\u1ea3m rung \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng l\u00e1i tr\u1ee3 l\u1ef1c \u0111i\u1ec7n (EPS) \u00f4 t\u00f4:<\/strong> \u0110\u0129a t\u1eeb ph\u00e2n c\u1ef1c \u0111\u1ed1i l\u1eadp l\u00e0 l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m chi ph\u00ed \u1edf \u0111\u00e2y. V\u1edbi thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n 2 c\u1ef1c, ch\u00fang h\u1ed7 tr\u1ee3 s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn \u2014 h\u01a1n 100.000 \u0111\u01a1n v\u1ecb m\u1ed7i n\u0103m \u2014 \u0111\u1ed3ng th\u1eddi duy tr\u00ec hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady trong h\u1ec7 th\u1ed1ng l\u00e1i.<\/li>\n<li><strong>\u0110\u1ed9ng c\u01a1 tr\u1ee5c HDD:<\/strong> \u0110\u1ed9ng c\u01a1 tr\u1ee5c t\u1ed1c \u0111\u1ed9 cao h\u01b0\u1edfng l\u1ee3i t\u1eeb nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c 8 c\u1ef1c. \u0110\u1ed9 ch\u00ednh x\u00e1c trong v\u1ecb tr\u00ed c\u1ef1c t\u1eeb v\u01b0\u1ee3t tr\u1ed9i gi\u00fap gi\u1eef \u0111\u1ed9 l\u1ec7ch tr\u1ee5c d\u01b0\u1edbi 0,5%, \u0111\u1ea3m b\u1ea3o RPM \u1ed5n \u0111\u1ecbnh v\u00e0 tu\u1ed5i th\u1ecd \u1ed5 c\u1ee9ng l\u00e2u h\u01a1n.<\/li>\n<\/ul>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam chi ti\u1ebft v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p t\u1eeb tr\u01b0\u1eddng ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ed9ng c\u01a1 trong nhi\u1ec1u ng\u00e0nh ngh\u1ec1, h\u00e3y xem c\u00e1c ph\u00e2n t\u00edch chuy\u00ean gia c\u1ee7a NBAEM v\u1ec1<span style=\"color: #ff6600;\"><strong> <a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/application-of-magnets-for-motor\/\" target=\"_blank\" rel=\"noopener\">\u1ee9ng d\u1ee5ng c\u1ee7a nam ch\u00e2m cho \u0111\u1ed9ng c\u01a1<\/a>.<\/strong><\/span><\/p>\n<h2>Ph\u00e2n t\u00edch Chi ph\u00ed &amp; Kh\u1ea3 n\u0103ng M\u1edf r\u1ed9ng<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn c\u00f4ng c\u1ee5 ch\u1ebf t\u1ea1o, nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c m\u1ea5t nhi\u1ec1u th\u1eddi gian h\u01a1n \u2014 th\u01b0\u1eddng t\u1eeb 4 \u0111\u1ebfn 6 tu\u1ea7n \u2014 do \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong vi\u1ec7c \u0111\u1eb7t c\u1ef1c ch\u00ednh x\u00e1c. Ng\u01b0\u1ee3c l\u1ea1i, \u0111\u0129a t\u1eeb ph\u00e2n c\u1ef1c \u0111\u1ed1i l\u1eadp ch\u1ec9 c\u1ea7n kho\u1ea3ng 2 tu\u1ea7n, gi\u00fap s\u1ea3n xu\u1ea5t nhanh h\u01a1n.<\/p>\n<p>\u1ede quy m\u00f4 10.000 chi\u1ebfc, s\u1ef1 ch\u00eanh l\u1ec7ch chi ph\u00ed tr\u00ean m\u1ed7i chi\u1ebfc dao \u0111\u1ed9ng t\u1eeb $0,15 \u0111\u1ebfn $0,80, v\u1edbi v\u00f2ng \u0111a c\u1ef1c th\u01b0\u1eddng \u0111\u1eaft h\u01a1n do qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ph\u1ee9c t\u1ea1p v\u00e0 dung sai ch\u1eb7t ch\u1ebd h\u01a1n. Tuy nhi\u00ean, chi ph\u00ed b\u1ed5 sung n\u00e0y th\u01b0\u1eddng mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n m\u00f4-men xo\u1eafn m\u01b0\u1ee3t v\u00e0 m\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng d\u1ea1ng sinusoide.<\/p>\n<p>NBAEM cung c\u1ea5p \u0111\u01a1n h\u00e0ng t\u1ed1i thi\u1ec3u (MOQ) l\u00e0 100 chi\u1ebfc m\u1eabu th\u1eed, k\u00e8m theo x\u00e1c nh\u1eadn c\u1ef1c t\u1eeb \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c trong t\u1eeb h\u00f3a v\u00e0 hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady tr\u01b0\u1edbc khi m\u1edf r\u1ed9ng s\u1ea3n xu\u1ea5t. D\u1ecbch v\u1ee5 n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro v\u00e0 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n s\u1ea3n ph\u1ea9m.<\/p>\n<p>&nbsp;<\/p>\n<h2>Danh s\u00e1ch ki\u1ec3m tra l\u1ef1a ch\u1ecdn cho nam ch\u00e2m \u0111\u0129a ph\u00e2n c\u1ef1c \u0111\u1ed1i l\u1eadp v\u00e0 nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c<\/h2>\n<p>Vi\u1ec7c ch\u1ecdn lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn nhanh \u0111\u1ec3 gi\u00fap b\u1ea1n quy\u1ebft \u0111\u1ecbnh:<\/p>\n<ul>\n<li><strong>C\u1ea7n \u00edt h\u01a1n 4 c\u1ef1c?<\/strong> Ch\u1ecdn <strong>nam ch\u00e2m \u0111\u0129a ph\u00e2n c\u1ef1c \u0111\u1ed1i l\u1eadp<\/strong>\u2014\u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3 cho c\u00e1c c\u1ea5u h\u00ecnh hai c\u1ef1c c\u01a1 b\u1ea3n.<\/li>\n<li><strong>B\u1ea1n \u0111ang t\u00ecm ki\u1ebfm d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c (back-EMF) m\u01b0\u1ee3t m\u00e0, d\u1ea1ng sin?<\/strong> Nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t c\u1ee7a b\u1ea1n, cung c\u1ea5p \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng h\u01b0\u1edbng k\u00ednh cao h\u01a1n v\u00e0 gi\u1ea3m rung torque.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh tr\u00ean 120\u00b0C?<\/strong> Xem x\u00e9t <strong>Nam ch\u00e2m \u0111a c\u1ef1c SmCo<\/strong> \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 hi\u1ec7u su\u1ea5t.<\/li>\n<\/ul>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n ch\u00ednh x\u00e1c, \u0111\u1eb7c bi\u1ec7t v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 v\u1ecb tr\u00ed c\u1ef1c ch\u1eb7t ch\u1ebd, b\u1ea1n c\u00f3 th\u1ec3 <strong>li\u00ean h\u1ec7 v\u1edbi nh\u00f3m CTA c\u1ee7a ch\u00fang t\u00f4i<\/strong> \u0111\u1ec3 nh\u1eadn b\u00e1o c\u00e1o v\u1ecb tr\u00ed c\u1ef1c chi ti\u1ebft trong v\u00f2ng 24 gi\u1edd.<\/p>\n<p>Danh s\u00e1ch ki\u1ec3m tra n\u00e0y \u0111\u1ea3m b\u1ea3o b\u1ea1n ch\u1ecdn m\u1ed9t lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh\u2014d\u00f9 l\u00e0 cho h\u1ec7 th\u1ed1ng l\u00e1i EPS ti\u1ebft ki\u1ec7m chi ph\u00ed hay \u0111\u1ed9ng c\u01a1 tr\u1ee5c cao c\u1ea5p.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u hi\u1ec7u su\u1ea5t cao nh\u01b0 SmCo, h\u00e3y xem b\u00e0i vi\u1ebft chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1<strong><span style=\"color: #ff6600;\"> <a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/products\/samarium-cobalt-magnets\/\" target=\"_blank\" rel=\"noopener\">nam ch\u00e2m SmCo<\/a>.<\/span><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh nam ch\u00e2m \u0111\u0129a t\u1eeb t\u00ednh \u0111\u1ed1i di\u1ec7n c\u1ef1c v\u00e0 nam ch\u00e2m v\u00f2ng \u0111a c\u1ef1c cho m\u00f4-men xo\u1eafn, m\u1eabu t\u1eeb tr\u01b0\u1eddng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ed9ng c\u01a1 cao c\u1ea5p.<\/p>","protected":false},"author":1,"featured_media":3406,"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-3410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/Diametrically_Magnetized_vs_Multipole_Ring_Magnets.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3410","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=3410"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3410\/revisions"}],"predecessor-version":[{"id":3458,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3410\/revisions\/3458"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3406"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}