{"id":3908,"date":"2026-07-17T07:25:57","date_gmt":"2026-07-17T07:25:57","guid":{"rendered":"https:\/\/nbaem.com\/?p=3908"},"modified":"2026-06-27T07:32:24","modified_gmt":"2026-06-27T07:32:24","slug":"halbach-array-vs-normal-array","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/halbach-array-vs-normal-array\/","title":{"rendered":"Hi\u1ec7u su\u1ea5t t\u1eeb tr\u01b0\u1eddng c\u1ee7a M\u1ea3ng Halbach so v\u1edbi M\u1ea3ng b\u00ecnh th\u01b0\u1eddng \u0111\u01b0\u1ee3c so s\u00e1nh"},"content":{"rendered":"<h2>M\u1ea3ng Halbach so v\u1edbi M\u1ea3ng th\u00f4ng th\u01b0\u1eddng: So s\u00e1nh hi\u1ec7u su\u1ea5t tr\u1ef1c ti\u1ebfp<\/h2>\n<p>Khi b\u1ea1n so s\u00e1nh m\u1ed9t m\u1ea3ng Halbach v\u1edbi m\u1ed9t b\u1ed1 tr\u00ed nam ch\u00e2m th\u00f4ng th\u01b0\u1eddng, kho\u1ea3ng c\u00e1ch t\u1eeb tr\u01b0\u1eddng trong khe kh\u00f4ng kh\u00ed t\u1eeb t\u00ednh tr\u1edf n\u00ean r\u00f5 r\u00e0ng ngay l\u1eadp t\u1ee9c. B\u1eb1ng c\u00e1ch xoay ch\u00ednh x\u00e1c h\u01b0\u1edbng t\u1eeb h\u00f3a c\u1ee7a m\u1ed7i \u0111o\u1ea1n nam ch\u00e2m, m\u1ed9t m\u1ea3ng Halbach t\u1eadp trung g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 l\u1ef1c t\u1eeb c\u00f3 s\u1eb5n v\u1ec1 m\u1ed9t m\u1eb7t l\u00e0m vi\u1ec7c duy nh\u1ea5t. Thi\u1ebft k\u1ebf t\u1ef1 che ch\u1eafn th\u00f4ng minh n\u00e0y mang l\u1ea1i s\u1ef1 t\u0103ng v\u1ecdt l\u1edbn cho m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng ho\u1ea1t \u0111\u1ed9ng\u2014th\u01b0\u1eddng t\u0103ng l\u00ean t\u1edbi 44% so v\u1edbi c\u00e1c c\u1ea5u h\u00ecnh c\u1ef1c \u0111\u1ed1i x\u1ee9ng chu\u1ea9n.<\/p>\n<p>C\u00e1c m\u1ea3ng ti\u00eau chu\u1ea9n \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng th\u1ec3 c\u1ea1nh tranh v\u1ec1 hi\u1ec7u qu\u1ea3 th\u00f4 m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 h\u1ed7 tr\u1ee3. V\u00ec m\u1ed9t m\u1ea3ng th\u00f4ng th\u01b0\u1eddng ph\u00e1t t\u1eeb tr\u01b0\u1eddng t\u1eeb \u0111\u1ec1u ra hai ph\u00eda, n\u00f3 g\u1eb7p ph\u1ea3i tr\u01b0\u1eddng l\u1ec7ch hai b\u00ean l\u1edbn. \u0110\u1ec3 kh\u1eafc ph\u1ee5c v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng l\u1ea1i n\u0103ng l\u01b0\u1ee3ng l\u00e3ng ph\u00ed \u0111\u00f3 v\u1ec1 m\u1ee5c ti\u00eau, c\u00e1c b\u1ed9 c\u1ea5u h\u00ecnh th\u00f4ng th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o m\u1ed9t t\u1ea5m s\u1eaft ph\u00eda sau d\u00e0y v\u00e0 n\u1eb7ng. T\u1ea5m \u0111\u1ebf kim lo\u1ea1i th\u00e9p n\u1eb7ng n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 \u0111\u01b0\u1eddng tr\u1edf v\u1ec1 c\u1ea7n thi\u1ebft cho m\u1ea1ch t\u1eeb, l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng th\u00f4 cho thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Ch\u1ec9 s\u1ed1 Hi\u1ec7u su\u1ea5t<\/th>\n<th style=\"text-align: left;\">M\u1ea3ng Halbach<\/th>\n<th style=\"text-align: left;\">M\u1ea3ng Th\u00f4ng th\u01b0\u1eddng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>M\u1eadt \u0111\u1ed9 l\u01b0u l\u01b0\u1ee3ng t\u1eeb<\/strong><\/td>\n<td style=\"text-align: left;\">L\u00ean \u0111\u1ebfn 44% cao h\u01a1n \u1edf m\u1eb7t m\u1ea1nh<\/td>\n<td style=\"text-align: left;\">Chu\u1ea9n (c\u1ea7n c\u00f3 s\u1eaft ph\u00eda sau \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>R\u00f2 r\u1ec9 tr\u01b0\u1eddng l\u1ec7ch<\/strong><\/td>\n<td style=\"text-align: left;\">G\u1ea7n b\u1eb1ng kh\u00f4ng \u1edf m\u1eb7t y\u1ebfu<\/td>\n<td style=\"text-align: left;\">Cao \u1edf hai b\u00ean m\u00e0 kh\u00f4ng c\u00f3 shielding<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Y\u00eau c\u1ea7u s\u1eaft ph\u00eda sau<\/strong><\/td>\n<td style=\"text-align: left;\">Ho\u00e0n to\u00e0n t\u00f9y ch\u1ecdn \/ C\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf<\/td>\n<td style=\"text-align: left;\">Ho\u00e0n to\u00e0n then ch\u1ed1t<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Hi\u1ec7u su\u1ea5t khe h\u1edf<\/strong><\/td>\n<td style=\"text-align: left;\">R\u1ea5t t\u1eadp trung v\u00e0 m\u1ea1nh<\/td>\n<td style=\"text-align: left;\">Ph\u00e2n t\u00e1n v\u00e0 y\u1ebfu h\u01a1n \u1edf c\u00f9ng kho\u1ea3ng c\u00e1ch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>B\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf nhu c\u1ea7u s\u1eed d\u1ee5ng l\u1edbp n\u1ec1n b\u1eb1ng th\u00e9p c\u1ed3ng k\u1ec1nh n\u00e0y, m\u1ed9t s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao <a href=\"https:\/\/nbaem.com\/vi\/products\/halbach-array\/\">M\u1ea3ng Halbach<\/a> l\u00e0m ng\u1eafn m\u1ea1ch t\u1eeb xuy\u00ean r\u1ed9ng \u0111\u00e1ng k\u1ec3. N\u00f3 n\u00e9n m\u1ed9t tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n \u0111\u00e1ng k\u1ec3 v\u00e0o \u0111\u00fang c\u00f9ng kh\u00f4ng gian v\u1eadt l\u00fd, m\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch hi\u1ec7u su\u1ea5t tr\u00ean m\u1ecdi khe t\u1eeb t\u01b0\u01a1ng \u1ee9ng. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u m\u00f4 men xo\u1eafn t\u1ed1i \u0111a ho\u1eb7c l\u1ef1c n\u00e2ng trong ph\u1ea1m vi kh\u00f4ng gian ch\u1eadt h\u1eb9p, d\u1ef1a v\u00e0o b\u1ed1 tr\u00ed t\u1eeb tr\u01b0\u1eddng truy\u1ec1n th\u1ed1ng c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n \u0111ang b\u1ecf l\u1ea1i m\u1ed9t l\u01b0\u1ee3ng l\u1edbn hi\u1ec7u su\u1ea5t tr\u00ean b\u00e0n<\/p>\n<h2><\/h2>\n<h2>What\u2019s the Big Deal with Halbach Arrays?<\/h2>\n<p>Khi ch\u00fang ta thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng t\u1eeb tr\u01b0\u1eddng hi\u1ec7u su\u1ea5t cao, s\u1ef1 th\u1ea5t v\u1ecdng l\u1edbn nh\u1ea5t l\u00e0 n\u0103ng l\u01b0\u1ee3ng b\u1ecb l\u00e3ng ph\u00ed. C\u00e1c b\u1ed1 tr\u00ed t\u1eeb tr\u01b0\u1eddng ti\u00eau chu\u1ea9n t\u1ef1 nhi\u00ean ph\u00e1t t\u00e1n tr\u01b0\u1eddng t\u1eeb theo hai h\u01b0\u1edbng m\u1ed9t c\u00e1ch \u0111\u1ec1u \u0111\u1eb7n. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n \u0111ang l\u00e3ng ph\u00ed m\u1ed9t n\u1eeda c\u00f4ng su\u1ea5t c\u1ee7a m\u00ecnh cho m\u1ed9t <strong>tr\u01b0\u1eddng lo\u1ea1n<\/strong> l\u1ea1i v\u00f2ng v\u1ec1 ph\u00eda sau b\u1ed9 l\u1eafp r\u00e1p, kh\u00f4ng l\u00e0m g\u00ec h\u1eefu \u00edch cho \u0111\u1ed9ng c\u01a1 ho\u1eb7c thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng c\u1ee7a b\u1ea1n.<\/p>\n<p>\u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng m\u1ed9t <strong>m\u1eabu t\u1eeb h\u00f3a quay theo kh\u00f4ng gian<\/strong> \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn nh\u01b0 m\u1ed9t m\u1ea3ng Halbach. B\u1eb1ng c\u00e1ch quay h\u01b0\u1edbng c\u1ee7a c\u00e1c \u0111o\u1ea1n t\u1eeb magnet ri\u00eang l\u1ebb 90 \u0111\u1ed9 so v\u1edbi nhau, tr\u01b0\u1eddng t\u1eeb kh\u00e1ng l\u1ea1i h\u1eefu \u00edch \u1edf m\u1ed9t ph\u00eda trong khi tri\u1ec7t ti\u00eau l\u1eabn nhau \u1edf ph\u00eda \u0111\u1ed1i di\u1ec7n.<\/p>\n<p>M\u1ea3ng chu\u1ea9n: [N] [S] [N] [S] &lt;\u2013 Tr\u01b0\u1eddng tho\u00e1t ra c\u1ea3 ph\u00eda tr\u00ean v\u00e0 ph\u00eda d\u01b0\u1edbi<br \/>\nM\u1ea3ng Halbach: [\u2192] [\u2191] [\u2190] [\u2193] &lt;\u2013 Tr\u01b0\u1eddng tri\u1ec7t ti\u00eau \u1edf ph\u00eda d\u01b0\u1edbi, t\u0103ng g\u1ea5p \u0111\u00f4i \u1edf ph\u00eda tr\u00ean<\/p>\n<p>C\u00e1ch s\u1eafp x\u1ebfp th\u00f4ng minh n\u00e0y mang l\u1ea1i c\u00e1c l\u1ee3i th\u1ebf v\u1eadn h\u00e0nh r\u00f5 r\u1ec7t:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>M\u1ed9t m\u1eb7t l\u00e0m vi\u1ec7c duy nh\u1ea5t:<\/strong> L\u01b0u l\u01b0\u1ee3ng t\u1eeb \u0111\u01b0\u1ee3c t\u1eadp trung v\u00e0 tuy\u1ebfn t\u00ednh v\u00e0o m\u1ed9t ph\u00eda, t\u1ea1o ra m\u1ed9t b\u1ec1 m\u1eb7t si\u00eau t\u1eadp trung, c\u1ef1c k\u1ef3 m\u1ea1nh <strong>gi\u00e1 tr\u1ecb m\u1eadt \u0111\u1ed9 flux t\u1eeb<\/strong>.<\/li>\n<li><strong>Thi\u1ebft k\u1ebf t\u1ef1 che ch\u1eafn:<\/strong> B\u1edfi v\u00ec tr\u01b0\u1eddng t\u1eeb b\u1ecb tri\u1ec7t ti\u00eau \u1edf ph\u00eda kh\u00f4ng l\u00e0m vi\u1ec7c, m\u1ea3ng n\u00e0y g\u1ea7n nh\u01b0 kh\u00f4ng c\u1ea7n l\u1edbp \u0111\u1ebf th\u00e9p n\u1eb7ng \u0111\u1ec3 ch\u1ee9a c\u00e1c tr\u01b0\u1eddng l\u1ec7ch l\u1ec7ch khi b\u1ecb m\u1ea5t s\u1ee9c.<\/li>\n<li><strong>Hi\u1ec7u qu\u1ea3 t\u1ed1i \u0111a:<\/strong> Thay v\u00ec ph\u00e2n t\u00e1n l\u1ef1c t\u1eeb c\u1ee7a b\u1ea1n qua hai tr\u01b0\u1eddng l\u1ec7ch hai ph\u00eda, b\u1ea1n \u0111i\u1ec1u h\u01b0\u1edbng 100% c\u1ee7a tr\u01b0\u1eddng c\u00f3 \u00edch \u0111\u00fang n\u01a1i n\u00f3 c\u1ea7n \u1edf trong <strong>kho\u1ea3ng th\u00f4ng l\u01b0\u1ee3ng<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 C\u1ea5u h\u00ecnh: Thi\u1ebft l\u1eadp n\u00e0o gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m l\u01b0ng v\u00e0 ng\u00e2n s\u00e1ch?<\/h2>\n<p>Khi ch\u00fang t\u00f4i thi\u1ebft k\u1ebf m\u00e1y \u0111\u1ed9ng c\u01a1 hi\u1ec7u su\u1ea5t cao ho\u1eb7c t\u1ed5 h\u1ee3p t\u1eeb tr\u01b0\u1eddng, tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 ti\u1ec1n. Trong cu\u1ed9c \u0111\u1ed1i \u0111\u1ea7u Halbach Array vs Normal Array, d\u1ea5u ch\u00e2n v\u1eadt l\u00fd v\u00e0 t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a thi\u1ebft l\u1eadp c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m cho ng\u00e2n s\u00e1ch v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a d\u1ef1 \u00e1n b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n<h3>Gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng l\u00ean t\u1edbi 40% b\u1eb1ng M\u1ea3ng Halbach<\/h3>\n<p>\u01afu th\u1ebf c\u1ea5u tr\u00fac l\u1edbn nh\u1ea5t c\u1ee7a m\u1ed9t m\u1ea3ng Halbach l\u00e0 thi\u1ebft k\u1ebf t\u1ef1 che ch\u1eafn c\u1ee7a n\u00f3. V\u00ec tr\u01b0\u1eddng t\u1eeb b\u1ecb tri\u1ec7t ti\u00eau \u1edf m\u1ed9t b\u00ean v\u00e0 t\u0103ng c\u01b0\u1eddng \u1edf b\u00ean kia, ch\u00fang ta c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n c\u00e1c t\u1ea5m \u0111\u1ebf th\u00e9p n\u1eb7ng.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Kh\u00f4ng y\u00eau c\u1ea7u s\u1eaft l\u01b0ng:<\/strong> C\u00e1ch b\u1ed1 tr\u00ed c\u1ef1c xen k\u1ebd th\u00f4ng th\u01b0\u1eddng d\u1ef1a nhi\u1ec1u v\u00e0o m\u1ed9t yoke s\u1eaft ho\u1eb7c th\u00e9p d\u00e0y \u0111\u1ec3 ho\u00e0n thi\u1ec7n m\u1ea1ch t\u1eeb v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c tr\u01b0\u1eddng l\u1ec7ch.<\/li>\n<li><strong>Qu\u1ea7n \u00e1o nh\u1eb9 h\u01a1n:<\/strong> B\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf kim lo\u1ea1i mang t\u1eeb n\u1eb7ng n\u00e0y, ch\u00fang ta th\u01b0\u1eddng th\u1ea5y gi\u1ea3m t\u1edbi <strong>40% kh\u1ed1i l\u01b0\u1ee3ng m\u1ea1ch t\u1eeb t\u1ed5ng c\u1ed9ng<\/strong>.<\/li>\n<li><strong>\u0110\u1ed9ng Kerrato kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t:<\/strong> \u00cdt tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3n nhi\u1ec7t \u0111\u1ed3ng ngh\u0129a v\u1edbi h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n c\u00f3 t\u1ef7 l\u1ec7 c\u00f4ng su\u1ea5t tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng cao h\u01a1n \u0111\u00e1ng k\u1ec3.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Chi ph\u00ed \u1ea9n c\u1ee7a t\u1ea5m \u0111\u1ec7m th\u00e9p<\/h3>\n<p>M\u1eb7c d\u00f9 m\u1ed9t m\u1ea3ng th\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng nam ch\u00e2m v\u0129nh vi\u1ec5n ri\u00eang l\u1ebb r\u1ebb h\u01a1n, chi ph\u00ed \u1ea9n l\u1ea1i n\u1eb1m \u1edf ph\u1ea7n c\u1ee9ng h\u1ed7 tr\u1ee3.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Chi ph\u00ed v\u1eadt li\u1ec7u v\u00e0 gia c\u00f4ng:<\/strong> S\u1eaft ph\u00eda sau d\u00e0y h\u01a1n \u0111\u00f2i h\u1ecfi gia c\u00f4ng ch\u00ednh x\u00e1c, l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 gi\u1edd gia c\u00f4ng.<\/li>\n<li><strong>\u1ee8ng su\u1ea5t c\u1ea5u tr\u00fac:<\/strong> C\u00e1c m\u1ea3ng th\u00f4ng th\u01b0\u1eddng n\u1eb7ng \u0111\u00f2i h\u1ecfi khung h\u1ed7 tr\u1ee3 l\u1edbn h\u01a1n, v\u00f2ng bi l\u1edbn h\u01a1n v\u00e0 v\u1ecf b\u1ecdc m\u1ea1nh h\u01a1n \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c tr\u1ecdng l\u01b0\u1ee3ng ch\u1ebft.<\/li>\n<li><strong>\u0110\u1ed9 ph\u1ee9c t\u1ea1p l\u1eafp r\u00e1p:<\/strong> Vi\u1ec7c \u0111i\u1ec1u ph\u1ed1i l\u1ef1c t\u1eeb tr\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh <a href=\"https:\/\/nbaem.com\/vi\/magnetization-and-demagnetization-for-permanent-magnet\/\">l Magnetization v\u00e0 demagnetization cho c\u00e1c c\u1ea5u h\u00ecnh nam ch\u00e2m v\u0129nh<\/a> cinh y\u00eau c\u1ea7u c\u00e1c t\u1ea5m l\u01b0ng c\u1ee9ng, ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng \u0111\u1ec3 gi\u1eef c\u00e1c th\u00e0nh ph\u1ea7n v\u1eefng ch\u1eafc v\u1ec1 c\u1ea5u tr\u00fac.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Thi\u1ebft k\u1ebf Compact cho Drone, EV, v\u00e0 Kh\u00f4ng gian h\u1eb9p<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng to\u00e0n c\u1ea7u gi\u1edbi h\u1ea1n kh\u00f4ng gian, m\u1ea3ng Halbach l\u00e0 ng\u01b0\u1eddi chi\u1ebfn th\u1eafng r\u00f5 r\u00e0ng. Ch\u00fang t\u00f4i d\u1ef1a v\u00e0o ch\u00fang \u0111\u1ec3 t\u1ea1o ra c\u00e1c thi\u1ebft k\u1ebf si\u00eau nh\u1ecf g\u1ecdn, th\u00f4ng s\u1ed1 th\u1ea5p, n\u01a1i m\u1ed7i milimet \u0111\u1ec1u c\u00f3 \u00fd ngh\u0129a.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Drones &amp; UAVs:<\/strong> T\u1ed1i \u01b0u h\u00f3a th\u1eddi l\u01b0\u1ee3ng pin v\u00e0 kh\u1ea3 n\u0103ng mang payload b\u1eb1ng c\u00e1ch gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng \u0111\u1ed9ng c\u01a1.<\/li>\n<li><strong>Xe \u0111i\u1ec7n (EVs):<\/strong> Cung c\u1ea5p m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn cao c\u1ea7n thi\u1ebft cho \u0111\u1ed9ng c\u01a1 tr\u1ee5c b\u00e1nh xe nh\u1ecf g\u1ecdn v\u00e0 h\u1ec7 truy\u1ec1n \u0111\u1ed9ng nh\u1eb9.<\/li>\n<li><strong>Precision Aerospace:<\/strong> Giao l\u1ef1c t\u1eeb t\u1eeb tr\u01b0\u1eddng t\u1eeb t\u00ednh \u0111\u01b0\u1ee3c \u0111\u1ecba ph\u01b0\u01a1ng h\u00f3a ch\u00ednh x\u00e1c n\u01a1i c\u1ea7n m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng \u0111\u1ed9 d\u00e0y th\u1eb7ng d\u01b0 cho m\u00e1y bay.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u00e1c m\u1ed9ng c\u1ee7a Halbach Assembly (V\u00e0 T\u1ea1i sao M\u1ea3ng b\u00ecnh th\u01b0\u1eddng th\u1eafng \u1edf \u0111\u00e2y)<\/h2>\n<p>C\u00e1c c\u00e2n nh\u1eafc an to\u00e0n: C\u00e1c b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean quan tr\u1ecdng <strong>Halbach array so v\u1edbi m\u1ea3ng b\u00ecnh th\u01b0\u1eddng<\/strong> d\u1ef1 \u00e1n mang \u0111\u1ebfn cho b\u1ea1n \u0111\u1ed1i m\u1eb7t tr\u1ef1c ti\u1ebfp v\u1edbi m\u1ed9t tr\u1edf ng\u1ea1i s\u1ea3n xu\u1ea5t kh\u1ed5ng l\u1ed3: repulsion t\u1eeb t\u00ednh nghi\u00eam tr\u1ecdng. Trong khi m\u1ed9t m\u1ea3ng ti\u00eau chu\u1ea9n s\u1eed d\u1ee5ng m\u1ed9t h\u00ecnh h\u1ecdc c\u1ef1c d\u1ecdc \u0111\u01a1n gi\u1ea3n <strong>c\u00e1c c\u1ef1c xen k\u1ebd<\/strong>, m\u1ed9t m\u1ea3ng Halbach bu\u1ed9c nam ch\u00e2m l\u1ea1i v\u1edbi nhau \u1edf g\u00f3c 90 \u0111\u1ed9. Ch\u00fang kh\u00f4ng mu\u1ed1n ng\u1ed3i c\u1ea1nh nhau. Trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p, nh\u1eefng nam ch\u00e2m n\u00e0y s\u1ebd v\u1eadn \u0111\u1ed9ng ch\u1ed1ng l\u1ea1i b\u1ea1n, twisting v\u00e0 bay kh\u1ecfi s\u1ef1 c\u0103n ch\u1ec9nh v\u1edbi l\u1ef1c \u0111\u00e1ng kinh ng\u1ea1c.<\/p>\n<h3>Chi ph\u00ed th\u1ef1c s\u1ef1 c\u1ee7a vi\u1ec7c \u00e9p nam ch\u00e2m l\u1ea1i v\u1edbi nhau<\/h3>\n<p>V\u01b0\u1ee3t qua c\u00e1c l\u1ef1c t\u1eeb n\u00e0y \u0111\u00f2i h\u1ecfi \u0111\u1ea7u t\u01b0 l\u1edbn v\u00e0o c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng v\u00e0 quy tr\u00ecnh s\u1ea3n xu\u1ea5t ch\u00ednh x\u00e1c:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>R\u1ed1i lo\u1ea1n c\u01a1 h\u1ecdc \u0111i\u00ean cu\u1ed3ng:<\/strong> \u00c9p c\u00e1c c\u1ef1c gi\u1ed1ng nhau ho\u1eb7c tr\u1ef1c giao l\u1ea1i v\u1edbi nhau c\u00f3 ngh\u0129a l\u00e0 nam ch\u00e2m s\u1ebd \u0111\u1ea9y nhau m\u1ea1nh m\u1ebd trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng r\u1eafn v\u00e0 li\u00ean k\u1ebft.<\/li>\n<li><strong>C\u00e1c c\u00f4ng c\u1ee5 c\u1ed1 \u0111\u1ecbnh \u0111\u1eb7c bi\u1ec7t \u0111\u1eaft \u0111\u1ecf:<\/strong> B\u1ea1n kh\u00f4ng th\u1ec3 t\u1ef1 l\u00e0m nh\u1eefng th\u1ee9 n\u00e0y b\u1eb1ng tay. B\u1ea1n c\u1ea7n c\u00e1c thi\u1ebft b\u1ecb k\u1eb9p c\u1ee1 l\u1edbn, kh\u00f4ng t\u1eeb t\u00ednh \u0111\u1ec3 kh\u00f3a t\u1eebng chi ti\u1ebft t\u1ea1i ch\u1ed7 trong khi l\u1edbp keo c\u1ea5u tr\u00fac \u0111\u00f3ng\u56fa.<\/li>\n<li><strong>C\u00e1c tr\u1edf ng\u1ea1i t\u1ef1 \u0111\u1ed9ng h\u00f3a cao:<\/strong> M\u1edf r\u1ed9ng quy m\u00f4 s\u1ea3n xu\u1ea5t y\u00eau c\u1ea7u c\u00e1c d\u00e2y chuy\u1ec1n l\u1eafp r\u00e1p b\u1eb1ng robot t\u1ef1 \u0111\u1ed9ng capable x\u1eed l\u00fd s\u1ee9c kh\u00e1ng v\u1eadt l\u00fd c\u1ef1c \u0111oan, \u0111i\u1ec1u n\u00e0y nhanh ch\u00f3ng \u0111\u1ea9y chi ph\u00ed thi\u1ebft l\u1eadp ban \u0111\u1ea7u c\u1ee7a b\u1ea1n l\u00ean cao.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>T\u1ea1i sao M\u1ea3ng Truy\u1ec1n Th\u1ed1ng l\u1ea1i l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn \u01b0a th\u00edch v\u1ec1 ng\u00e2n s\u00e1ch<\/h3>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n quy tr\u00ecnh l\u1eafp r\u00e1p nhanh, d\u1ec5 ch\u1ecbu v\u00e0 c\u00f3 th\u1ec3 ch\u00e8n v\u00e0o ngay l\u1eadp t\u1ee9c, c\u00e1c b\u1ed1 c\u1ee5c xen k\u1ebd th\u00f4ng th\u01b0\u1eddng l\u00e0 ng\u01b0\u1eddi chi\u1ebfn th\u1eafng r\u00f5 r\u00e0ng. C\u00e1c m\u1ea3ng ti\u00eau chu\u1ea9n c\u00f3 nam ch\u00e2m t\u1ef1 \u0111\u1ed9ng k\u00e9o v\u00e0o \u0111\u00fang v\u1ecb tr\u00ed ho\u1eb7c y\u00eau c\u1ea7u c\u00e1c khe c\u0103n ch\u1ec9nh c\u01a1 b\u1ea3n, chi ph\u00ed th\u1ea5p.<\/p>\n<p>Khi d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n \u0111\u00f2i h\u1ecfi s\u1ea3n xu\u1ea5t \u0111\u01a1n gi\u1ea3n m\u00e0 kh\u00f4ng c\u1ea7n jig c\u00f4ng nghi\u1ec7p chuy\u00ean d\u1ee5ng, ki\u00ean \u0111\u1ecbnh v\u1edbi c\u00e1c m\u1ea3ng th\u00f4ng th\u01b0\u1eddng gi\u00fap ti\u1ebft ki\u1ec7m m\u1ed9t l\u01b0\u1ee3ng l\u1edbn th\u1eddi gian v\u00e0 s\u1ef1 kh\u00f3 ch\u1ecbu. N\u1ebfu b\u1ea1n \u0111ang th\u1eed nghi\u1ec7m c\u00e1c v\u1ecb tr\u00ed nam ch\u00e2m \u0111\u01a1n gi\u1ea3n ho\u1eb7c nguy\u00ean m\u1eabu c\u00e1c c\u1ea3m bi\u1ebfn c\u01a1 b\u1ea3n, vi\u1ec7c t\u1eadn d\u1ee5ng chu\u1ea9n <a href=\"https:\/\/nbaem.com\/vi\/round-magnets-with-hole-and-without-hole-2\/\">nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7 v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7<\/a> \u0111em l\u1ea1i m\u1ed9t thi\u1ebft l\u1eadp d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c v\u00e0 ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch, gi\u00fap qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ti\u1ebfp t\u1ee5c m\u00e0 kh\u00f4ng g\u1eb7p c\u00e1c r\u1eafc r\u1ed1i c\u01a1 h\u1ecdc c\u1ee7a m\u1ed9t c\u1ea5u h\u00ecnh Halbach ph\u1ee9c t\u1ea1p.<\/p>\n<h2>Nhi\u1ec7t \u0111\u1ed9 v\u00e0 gi\u1edbi h\u1ea1n nhi\u1ec7t: Halbach Array so v\u1edbi M\u1ea3ng Normal<\/h2>\n<p>Qu\u1ea3n l\u00fd nhi\u1ec7t l\u00e0 n\u01a1i cu\u1ed9c tranh lu\u1eadn gi\u1eefa m\u1ea3ng Halbach v\u00e0 m\u1ea3ng th\u00f4ng th\u01b0\u1eddng tr\u1edf n\u00ean quan tr\u1ecdng. Trong khi c\u00e1c c\u1ea5u h\u00ecnh Halbach cung c\u1ea5p hi\u1ec7u qu\u1ea3 t\u1eeb t\u00ednh \u0111\u00e1ng kinh ng\u1ea1c, ch\u00fang c\u00f3 m\u1ed9t \u0111i\u1ec3m y\u1ebfu l\u1edbn: d\u1ec5 b\u1ecb t\u1eeb h\u00f3a ng\u01b0\u1ee3c d\u01b0\u1edbi \u00e1p l\u1ef1c nhi\u1ec7t. V\u00ec nam ch\u00e2m b\u1ecb \u00e9p v\u00e0o c\u00e1c h\u01b0\u1edbng \u0111\u1ed1i ngh\u1ecbch, ch\u00fang li\u00ean t\u1ee5c ch\u1ed1ng l\u1ea1i tr\u01b0\u1eddng c\u1ee7a nhau, khi\u1ebfn ch\u00fang c\u1ef1c k\u1ef3 b\u1ea5t \u1ed5n khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng.<\/p>\n<h3>H\u00e0nh vi ph\u00e2n h\u1ee7y nhi\u1ec7t tr\u00ean 80\u00b0C<\/h3>\n<p>Nam ch\u00e2m neodymium ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u1ea5u h\u00ecnh n\u00e0y th\u01b0\u1eddng \u0111\u1ed1i m\u1eb7t v\u1edbi h\u00e0nh vi ph\u00e2n h\u1ee7y nhi\u1ec7t tr\u00ean 80\u00b0C. Trong m\u1ed9t h\u00ecnh h\u1ecdc l\u1ee5c gi\u00e1c c\u1ef1c t\u00ednh xen k\u1ebd th\u00f4ng th\u01b0\u1eddng, m\u1ed9t t\u0103ng nhi\u1ec7t c\u00f3 th\u1ec3 ch\u1ec9 g\u00e2y gi\u1ea3m hi\u1ec7u n\u0103ng t\u1ea1m th\u1eddi. Trong m\u1ed9t thi\u1ebft l\u1eadp Halbach, nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3 k\u1ebft h\u1ee3p v\u1edbi c\u0103ng th\u1eb3ng b\u00ean trong c\u00f3 th\u1ec3 x\u00f3a v\u0129nh vi\u1ec5n s\u1ef1 c\u0103n ch\u1ec9nh t\u1eeb t\u00ednh.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>C\u0103ng th\u1eb3ng n\u1ed9i b\u1ed9:<\/strong> C\u00e1c tr\u01b0\u1eddng t\u1eeb ph\u00e2n h\u1ee7y n\u1ed9i b\u1ed9 \u0111\u1ed1i \u0111\u1ea7u m\u1ea1nh m\u1ebd li\u00ean t\u1ee5c \u0111\u1ea9y v\u1eadt li\u1ec7u t\u1edbi gi\u1edbi h\u1ea1n c\u1ee7a n\u00f3.<\/li>\n<li><strong>M\u1ea5t m\u00e1t kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c:<\/strong> V\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n nhi\u1ec7t l\u00e0m vi\u1ec7c d\u1eabn t\u1edbi suy gi\u1ea3m hi\u1ec7u su\u1ea5t v\u0129nh vi\u1ec5n.<\/li>\n<li><strong>Y\u00eau c\u1ea7u l\u00e0m m\u00e1t:<\/strong> C\u00e1c m\u1ea3ng Halbach \u0111\u00f2i h\u1ecfi qu\u1ea3n l\u00fd nhi\u1ec7t m\u1ea1nh m\u1ebd ho\u1eb7c l\u00e0m m\u00e1t ch\u1ee7 \u0111\u1ed9ng trong kh\u00f4ng gian h\u1eb9p.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Ch\u1ecdn h\u1ee3p kim nam ch\u00e2m c\u00f3 \u0111\u1ed9 c\u1ee9ng l\u00e0m vi\u1ec7c cao cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/h3>\n<p>\u0110\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 nghi\u00eam tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea3i cao nh\u01b0 xe \u0111i\u1ec7n ho\u1eb7c h\u00e0ng kh\u00f4ng \u2013 v\u0169 tr\u1ee5, ch\u00fang ta ph\u1ea3i l\u1ef1a ch\u1ecdn c\u1ea9n th\u1eadn nh\u1eefng nguy\u00ean li\u1ec7u th\u00f4 ph\u00f9 h\u1ee3p. \u0110\u1ed1i v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng th\u01b0\u1eddng xuy\u00ean v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n chu\u1ea9n, vi\u1ec7c chuy\u1ec3n sang <a href=\"https:\/\/nbaem.com\/vi\/what-is-high-performance-smco-magnets\/\">nam ch\u00e2m SmCo hi\u1ec7u su\u1ea5t cao<\/a> ho\u1eb7c c\u00e1c c\u1ea5p NdFeB c\u00f3 \u0111\u1ed9 t\u1eeb h\u00f3a cao \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Lo\u1ea1i v\u1eadt li\u1ec7u nam ch\u00e2m<\/th>\n<th style=\"text-align: left;\">Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a<\/th>\n<th style=\"text-align: left;\">Kh\u00e1ng m\u1ea5t t\u1eeb<\/th>\n<th style=\"text-align: left;\">L\u1ef1a ch\u1ecdn m\u1ea3ng l\u00fd t\u01b0\u1edfng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Standard NdFeB<\/strong><\/td>\n<td style=\"text-align: left;\">80\u00b0C \u2013 120\u00b0C<\/td>\n<td style=\"text-align: left;\">Th\u1ea5p \u0111\u1ebfn Trung b\u00ecnh<\/td>\n<td style=\"text-align: left;\">M\u1ea3ng Th\u00f4ng th\u01b0\u1eddng<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>NdFeB c\u00f3 \u0111\u1ed9 t\u1eeb h\u00f3a cao<\/strong><\/td>\n<td style=\"text-align: left;\">150\u00b0C \u2013 200\u00b0C<\/td>\n<td style=\"text-align: left;\">Cao<\/td>\n<td style=\"text-align: left;\">M\u1ea3ng Halbach (Nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>SmCo cao c\u1ea5p<\/strong><\/td>\n<td style=\"text-align: left;\">250\u00b0C \u2013 350\u00b0C<\/td>\n<td style=\"text-align: left;\">R\u1ea5t cao<\/td>\n<td style=\"text-align: left;\">M\u1ea3ng Halbach (M\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c <a href=\"https:\/\/nbaem.com\/vi\/magnetization-and-demagnetization-for-permanent-magnet\/\">l\u00e0 s\u1ef1 t\u1eeb h\u00f3a v\u00e0 m\u1ea5t t\u1eeb h\u00f3a \u0111\u1ed1i v\u1edbi nam ch\u00e2m v\u0129nh vi\u1ec5n<\/a> cho ph\u00e9p ch\u00fang ta d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c c\u00e1ch c\u00e1c m\u1ea3ng n\u00e0y ho\u1ea1t \u0111\u1ed9ng d\u01b0\u1edbi t\u1ea3i. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng cao ho\u1eb7c s\u1ef1 qu\u00e1 t\u1ea3i \u0111i\u1ec7n t\u1eeb l\u1edbn, m\u1ed9t m\u1ea3ng b\u00ecnh th\u01b0\u1eddng v\u1edbi s\u1eaft back iron n\u1eb7ng ch\u1ecbu nhi\u1ec7t t\u1ed1t h\u01a1n nhi\u1ec1u, tr\u1eeb khi b\u1ea1n c\u00f3 ng\u00e2n s\u00e1ch cho h\u1ee3p kim cao t\u1eeb, \u0111\u1ed9 t\u1eeb h\u00f3a cao.<\/p>\n<h2>Hi\u1ec7u su\u1ea5t \u0110\u1ed9ng c\u01a1 Th\u1ef1c t\u1ebf: Halbach Array so v\u1edbi M\u1ea3ng Th\u00f4ng th\u01b0\u1eddng<\/h2>\n<p>Khi x\u00e2y d\u1ef1ng \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n hi\u1ec7u su\u1ea5t cao, s\u1ef1 l\u1ef1a ch\u1ecdn gi\u1eefa m\u1ed9t m\u1ea3ng Halbach v\u00e0 h\u00ecnh h\u1ecdc c\u1ef1c ph\u00e2n c\u1ef1c th\u00f4ng th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o hi\u1ec7u su\u1ea5t thu\u1ea7n t\u00fay v\u00e0 m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t. Trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf nh\u01b0 propulsion UAV v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a t\u1ed1c \u0111\u1ed9 cao, s\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 r\u00f5 r\u00e0ng.<\/p>\n<h3>So s\u00e1nh Hi\u1ec7u su\u1ea5t \u0110\u1ed9ng c\u01a1 Kh\u00f4ng l\u00f5i v\u00e0 Kh\u00f4ng r\u00e3nh<\/h3>\n<p>Trong c\u00e1c thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 kh\u00f4ng l\u00f5i v\u00e0 kh\u00f4ng r\u00e3nh, m\u1ea3ng Halbach v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi b\u1ed1 tr\u00ed chu\u1ea9n. B\u1eb1ng c\u00e1ch t\u1eadp trung flux t\u1eeb t\u1eeb m\u1eb7t l\u00e0m vi\u1ec7c v\u00e0 lo\u1ea1i b\u1ecf t\u1ed5n th\u1ea5t s\u1eaft stato, ch\u00fang \u0111\u1ea9y hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng t\u1edbi gi\u1edbi h\u1ea1n v\u1eadt l\u00fd c\u1ee7a n\u00f3.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Hi\u1ec7u su\u1ea5t M\u1ea3ng Halbach:<\/strong> Th\u00f4ng th\u01b0\u1eddng \u0111\u1ea1t \u0111\u01b0\u1ee3c <strong>94%<\/strong>. Thi\u1ebft k\u1ebf t\u1ef1 che ch\u1eafn t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb t\u01b0\u01a1ng t\u1ef1 h\u00ecnh sin g\u1ea7n nh\u01b0 ho\u00e0n h\u1ea3o, l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ed5n th\u1ea5t d\u00f2ng xo\u00e1y.<\/li>\n<li><strong>Hi\u1ec7u su\u1ea5t M\u1ea3ng B\u00ecnh Th\u01b0\u1eddng:<\/strong> Th\u00f4ng th\u01b0\u1eddng dao \u0111\u1ed9ng quanh <strong>87%<\/strong>. S\u1ef1 ph\u1ee5 thu\u1ed9c n\u1eb7ng v\u00e0o t\u1ea5m backing b\u1eb1ng th\u00e9p introducing k\u00e9o t\u1eeb t\u1eeb t\u1eeb magnetic v\u00e0 t\u1ed5n th\u1ea5t l\u00f5i m\u00e0 \u0103n m\u00f2n th\u1eddi gian v\u1eadn h\u00e0nh.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Cu\u1ed9c so gang M\u1eadt \u0111\u1ed9 C\u00f4ng su\u1ea5t: C\u00e1c ch\u1ec9 ti\u00eau kW\/kg<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n nh\u1ea1y c\u1ea3m v\u1ec1 tr\u1ecdng l\u01b0\u1ee3ng nh\u01b0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 robot ti\u00ean ti\u1ebfn, m\u1ed7i gam \u0111\u1ec1u quan tr\u1ecdng. Chuy\u1ec3n \u0111\u1ed5i sang c\u1ea5u h\u00ecnh Halbach c\u01a1 b\u1ea3n thay \u0111\u1ed5i t\u1ef7 l\u1ec7 c\u00f4ng su\u1ea5t tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng b\u1eb1ng c\u00e1ch t\u1ed1i \u0111a h\u00f3a m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Ch\u1ec9 s\u1ed1 Hi\u1ec7u su\u1ea5t<\/th>\n<th style=\"text-align: left;\">M\u1ea3ng Nam ch\u00e2m b\u00ecnh th\u01b0\u1eddng<\/th>\n<th style=\"text-align: left;\">M\u1ea3ng Halbach<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Hi\u1ec7u su\u1ea5t Trung b\u00ecnh c\u1ee7a \u0110\u1ed9ng c\u01a1<\/strong><\/td>\n<td style=\"text-align: left;\">87%<\/td>\n<td style=\"text-align: left;\">94%<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>M\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t (kW\/kg)<\/strong><\/td>\n<td style=\"text-align: left;\">C\u01a1 s\u1edf (1.0x)<\/td>\n<td style=\"text-align: left;\">L\u00ean t\u1edbi 1.5x \u2013 2.0x cao h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>R\u00f2 r\u1ec9 \ufb02ux t\u1eeb<\/strong><\/td>\n<td style=\"text-align: left;\">Cao (Y\u00eau c\u1ea7u ch\u1eafn ch\u1eafn n\u1eb7ng)<\/td>\n<td style=\"text-align: left;\">\u00cdt \u1ea3nh h\u01b0\u1edfng \u1edf ph\u00eda y\u1ebfu<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>L\u1ed7 l\u00f5i Stator<\/strong><\/td>\n<td style=\"text-align: left;\">V\u1eeba ph\u1ea3i \u0111\u1ebfn cao<\/td>\n<td style=\"text-align: left;\">Ultra-th\u1ea5p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Khi n\u00e0o lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n kim lo\u1ea1i l\u01b0ng<\/h3>\n<p>B\u1ea1n c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf to\u00e0n b\u1ed9 kim lo\u1ea1i l\u01b0ng n\u1eb7ng khi s\u1eed d\u1ee5ng m\u1ea3ng Halbach trong <a href=\"https:\/\/nbaem.com\/vi\/magnets-used-in-drone-motors\/\">\u0111\u1ed9ng c\u01a1 kh\u00f4ng l\u00f5i<\/a>. V\u00ec t\u1eeb tr\u01b0\u1eddng quay kh\u00f4ng gian theo h\u01b0\u1edbng quay s\u1eb5n c\u00f3 l\u00e0m l\u1ec7ch h\u01b0\u1edbng m\u1ea1ch t\u1eeb tr\u1edf l\u1ea1i kho\u1ea3ng tr\u01b0\u1eddng t\u1eeb hi\u1ec7u qu\u1ea3, t\u1ea5m \u0111\u1ebf b\u1eb1ng th\u00e9p n\u1eb7ng tr\u1edf n\u00ean th\u1eeba. Vi\u1ec7c lo\u1ea1i b\u1ecf kh\u1ed1i l\u01b0\u1ee3ng c\u1ea5u tr\u00fac n\u00e0y cho ph\u00e9p b\u1ea1n ch\u1ebf t\u1ea1o \u0111\u1ed9ng c\u01a1 si\u00eau nh\u1eb9, quay \u1edf t\u1ed1c \u0111\u1ed9 cao v\u00e0 ho\u1ea1t \u0111\u1ed9ng m\u00e1t h\u01a1n c\u0169ng nh\u01b0 cho ph\u1ea3n h\u1ed3i ga ngay l\u1eadp t\u1ee9c.<\/p>\n<h2>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Halbach v\u00e0 c\u00e1c m\u1ea3ng t\u1eeb th\u00f4ng th\u01b0\u1eddng<\/h2>\n<h3>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m m\u1ed9t m\u1ea3ng Halbach linh ho\u1ea1t t\u1ea1i nh\u00e0 kh\u00f4ng?<\/h3>\n<p>C\u00f3, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o m\u1ed9t phi\u00ean b\u1ea3n c\u01a1 b\u1ea3n b\u1eb1ng c\u00e1ch d\u00f9ng t\u1ea5m t\u1eeb t\u00ednh m\u1ec1m ho\u1eb7c kh\u1ed1i neodymium nh\u1ecf. B\u1eb1ng c\u00e1ch quay h\u01b0\u1edbng t\u1eeb h\u00f3a c\u1ee7a t\u1eebng nam ch\u00e2m ti\u1ebfp theo 90 \u0111\u1ed9 tr\u01b0\u1edbc khi d\u00e1n ch\u00fang l\u1ea1i, b\u1ea1n c\u00f3 th\u1ec3 t\u00e1i hi\u1ec7n hi\u1ec7u \u1ee9ng. Tuy nhi\u00ean, \u0111\u1ea1t s\u1ef1 c\u0103n ch\u1ec9nh ho\u00e0n h\u1ea3o m\u00e0 kh\u00f4ng c\u00f3 c\u00e1c khung chuy\u00ean d\u1ee5ng l\u00e0 kh\u00f3, v\u00e0 c\u00e1c phi\u00ean b\u1ea3n t\u1ef1 l\u00e0m s\u1ebd kh\u00f4ng s\u00e1nh b\u1eb1ng m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng t\u1eeb \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t chuy\u00ean nghi\u1ec7p <a href=\"https:\/\/nbaem.com\/gd\/products\/halbach-array\/\">M\u1ea3ng Halbach<\/a>.<\/p>\n<h3>T\u1ea1i sao kh\u00f4ng ph\u1ea3i m\u1ecdi motor \u0111i\u1ec7n \u0111\u1ec1u d\u00f9ng m\u1ea3ng Halbach?<\/h3>\n<p>M\u1eb7c d\u00f9 ch\u00fang cung c\u1ea5p m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t tuy\u1ec7t v\u1eddi, ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 thu\u1ed1c ch\u1eefa b\u00e1ch b\u1ec7nh. C\u00e1c r\u00e0o c\u1ea3n ch\u00ednh l\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t. C\u1ea5u h\u00ecnh c\u1ef1c ti\u1ebfp l\u1ed9n chu\u1ea9n d\u1ec5 l\u1eafp r\u00e1p h\u01a1n nhi\u1ec1u b\u1eb1ng m\u00e1y t\u1ef1 \u0111\u1ed9ng. V\u1edbi c\u00e1c thi\u1ebft b\u1ecb th\u00f4ng th\u01b0\u1eddng m\u00e0 tr\u1ecdng l\u01b0\u1ee3ng kh\u00f4ng ph\u1ea3i y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i, chi ph\u00ed s\u1ea3n xu\u1ea5t cao c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng t\u1eeb h\u00f3a quay theo kh\u00f4ng gian \u0111\u01a1n gi\u1ea3n kh\u00f4ng bi\u1ec7n minh cho c\u00e1c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t nh\u1ecf.<\/p>\n<h3>C\u00e1c m\u1ea3ng Halbach c\u00f3 c\u1ea7n shielding \u0111\u1eb7c bi\u1ec7t \u1edf ph\u00eda y\u1ebfu kh\u00f4ng?<\/h3>\n<p>Th\u00f4ng th\u01b0\u1eddng, kh\u00f4ng. M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a thi\u1ebft k\u1ebf t\u1ef1 che ch\u1eafn n\u00e0y l\u00e0 tr\u01b0\u1eddng t\u1eeb r\u00f2 r\u1ec9 \u1edf m\u1eb7t kh\u00f4ng l\u00e0m vi\u1ec7c \u0111\u01b0\u1ee3c t\u1ef1 nhi\u00ean tri\u1ec7t ti\u00eau. \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf nhu c\u1ea7u d\u00f9ng kim lo\u1ea1i l\u01b0ng n\u1eb7ng ho\u1eb7c c\u00e1c t\u1ea5m ch\u1eafn b\u1ed5 sung. \u0110\u00e2y l\u00e0 l\u1ee3i th\u1ebf l\u1edbn cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u1ea1y tr\u1ecdng l\u01b0\u1ee3ng nh\u01b0 drone v\u00e0 \u0111i\u1ec7n t\u1eed h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 m\u00e0 t\u1eeb t\u00ednh ph\u00e1t sinh c\u00f3 th\u1ec3 l\u00e0m nhi\u1ec5u c\u00e1c thi\u1ebft b\u1ecb nh\u1ea1y c\u1ea3m.<\/p>\n<h3>Halbach array \u0111\u1eaft h\u01a1n bao nhi\u00eau so v\u1edbi b\u1ed1 tr\u00ed ti\u00eau chu\u1ea9n?<\/h3>\n<blockquote><p><strong>Ph\u00ed Premium:<\/strong> M\u1ed9t m\u1ea3ng Halbach th\u01b0\u1eddng c\u00f3 gi\u00e1 <strong>t\u1eeb 1,5x \u0111\u1ebfn 3x<\/strong> \u0111\u1eaft h\u01a1n<\/p><\/blockquote>\n<p>m\u1ed9t m\u1ea3ng nam ch\u00e2m th\u00f4ng th\u01b0\u1eddng.<br \/>\n<strong>Kho\u1ea3ng c\u00e1ch gi\u00e1 ph\u1ee5 thu\u1ed9c v\u00e0o ba y\u1ebfu t\u1ed1 ch\u00ednh:<\/strong> L\u00e0m vi\u1ec7c l\u1eafp r\u00e1p:<br \/>\n<strong>Vi\u1ec7c \u0111\u1ed1i ph\u00f3 v\u1edbi l\u1ef1c kh\u00e1ng t\u1eeb m\u1ea1nh trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u00f2i h\u1ecfi c\u00e1c jig ph\u1ee9c t\u1ea1p, ch\u1ecbu t\u1ea3i n\u1eb7ng.<\/strong> Ph\u00e2n m\u1ea3nh nam ch\u00e2m:<br \/>\n<strong>B\u1ea1n c\u1ea7n nhi\u1ec1u m\u1ea3nh nam ch\u00e2m ri\u00eang l\u1ebb v\u1edbi \u0111\u1ecbnh h\u01b0\u1edbng \u0111a chi\u1ec1u ch\u00ednh x\u00e1c.<\/strong> T\u1ec9 l\u1ec7 ph\u1ebf ph\u1ea9m:<\/p>\n<div id=\"references\">\n<h2>Ngu\u1ed3n li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6021816\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6021816\/<\/a><\/li>\n<li><a href=\"https:\/\/etn-demeter.eu\/wp-content\/uploads\/2017\/07\/Amit_Jha_ELMA2017.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/etn-demeter.eu\/wp-content\/uploads\/2017\/07\/Amit_Jha_ELMA2017.pdf<\/a><\/li>\n<li><a href=\"https:\/\/pubs.aip.org\/aip\/adv\/article\/16\/2\/025146\/3380869\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/pubs.aip.org\/aip\/adv\/article\/16\/2\/025146\/3380869<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Gi\u1ea3i th\u00edch Halbach Array so v\u1edbi M\u1ea3ng b\u00ecnh th\u01b0\u1eddng b\u1eb1ng m\u1eadt \u0111\u1ed9 flux, hi\u1ec7u su\u1ea5t, ti\u1ebft ki\u1ec7m tr\u1ecdng l\u01b0\u1ee3ng, \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 nh\u1eefng \u0111\u00e1nh \u0111\u1ed5i trong thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 th\u1ef1c t\u1ebf<\/p>","protected":false},"author":1,"featured_media":3907,"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-3908","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\/2026\/06\/Halbach_Array_vs_Normal_Array_magnetic_field_comparison_3rd.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3908","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=3908"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3908\/revisions"}],"predecessor-version":[{"id":3909,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3908\/revisions\/3909"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3907"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}