{"id":3964,"date":"2026-08-13T08:57:12","date_gmt":"2026-08-13T08:57:12","guid":{"rendered":"https:\/\/nbaem.com\/?p=3964"},"modified":"2026-08-09T10:01:23","modified_gmt":"2026-08-09T10:01:23","slug":"custom-halbach-array-permanent-magnet-manufacturer","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/custom-halbach-array-permanent-magnet-manufacturer\/","title":{"rendered":"Nh\u00e0 s\u1ea3n xu\u1ea5t nam ch\u00e2m v\u0129nh c\u1eedu M\u1ea3ng Halbach t\u00f9y ch\u1ec9nh"},"content":{"rendered":"<p>\u0110ang t\u00ecm ki\u1ebfm m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng? <strong>m\u1ea3ng Halbach t\u00f9y ch\u1ec9nh nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> \u0111em l\u1ea1i tr\u01b0\u1eddng t\u1eadp trung m\u1ea1nh h\u01a1n, l\u1ec7ch flux \u00edt h\u01a1n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n? B\u1ea1n \u0111ang \u1edf \u0111\u00fang n\u01a1i.<\/p>\n<p>L\u00e0 ng\u01b0\u1eddi hi\u1ec3u \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng c\u1ee7a \u0111\u1ed9 t\u1eeb trong k\u1ef9 thu\u1eadt th\u1ef1c t\u1ebf, t\u00f4i bi\u1ebft s\u1ef1 kh\u00e1c bi\u1ec7t m\u00e0 m\u1ed9t thi\u1ebft k\u1ebf t\u1ed1t c\u00f3 th\u1ec3 mang l\u1ea1i <strong>M\u1ea3ng Halbach<\/strong> c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t trong \u0111\u1ed9ng c\u01a1, c\u1ea3m bi\u1ebfn, c\u1eb7p t\u1eeb t\u00ednh, h\u1ec7 th\u1ed1ng maglev v\u00e0 c\u00e1c h\u1ec7 l\u1eafp r\u00e1p hi\u1ec7u su\u1ea5t cao kh\u00e1c.<\/p>\n<p>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd th\u1ea5y nh\u1eefng g\u00ec quan tr\u1ecdng nh\u1ea5t khi ch\u1ecdn m\u1ed9t <strong>m\u1ea3ng Halbach t\u00f9y ch\u1ec9nh nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> gi\u1ea3i ph\u00e1p, bao g\u1ed3m h\u00ecnh h\u1ecdc, l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u, gi\u1edbi h\u1ea1n nhi\u1ec7t, v\u00e0 t\u00ednh kh\u1ea3 thi s\u1ea3n xu\u1ea5t.<\/p>\n<p>H\u00e3y b\u1eaft \u0111\u1ea7u n\u00e0o.<\/p>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m v\u0129nh vi\u1ec5n Halbach t\u00f9y ch\u1ec9nh?<\/h2>\n<p>Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf t\u1ed5 h\u1ee3p nam ch\u00e2m v\u0129nh c\u1eedu d\u1ea1ng Halbach t\u00f9y ch\u1ec9nh \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n tr\u01b0\u1eddng t\u1eeb v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ef1c k\u1ef3 cao. B\u1eb1ng c\u00e1ch quay h\u01b0\u1edbng t\u1eeb h\u00f3a c\u1ee7a c\u00e1c \u0111o\u1ea1n nam ch\u00e2m l\u00e2n c\u1eadn theo m\u1ed9t m\u1eabu l\u1eb7p l\u1ea1i \u2014 th\u01b0\u1eddng chuy\u1ec3n g\u00f3c 90 \u0111\u1ed9 t\u1eeb kh\u1ed1i n\u00e0y sang kh\u1ed1i kh\u00e1c \u2014 ch\u00fang t\u00f4i \u0111\u1ecbnh h\u01b0\u1edbng l\u1ea1i lu\u1ed3ng t\u1eeb \u0111\u1ec3 t\u1eadp trung d\u1ecdc theo m\u1ed9t ph\u00eda \u01b0u ti\u00ean duy nh\u1ea5t.<\/p>\n<h3>H\u01b0\u1edbng t\u1eeb h\u00f3a v\u00e0 M\u1eadt \u0111\u1ed9 tr\u01b0\u1eddng t\u1eadp trung \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch<\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Quy \u0111\u1ed5i Vector kh\u00f4ng gian:<\/strong> C\u00e1c b\u1ed9 gh\u00e9p t\u1eeb t\u1eeb tr\u01b0\u1eddng ti\u00eau chu\u1ea9n c\u0103n ch\u1ec9nh c\u00e1c c\u1ef1c song song. A <strong>thi\u1ebft k\u1ebf m\u1ea3ng Halbach t\u00f9y ch\u1ec9nh<\/strong> xoay theo h\u1ec7 th\u1ed1ng h\u01b0\u1edbng c\u1ee7a t\u1eeb h\u00f3a xuy\u00ean qua c\u00e1c \u0111o\u1ea1n k\u1ebf c\u1eadn m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>Gia t\u0103ng m\u1eadt \u0111\u1ed9 flux:<\/strong> S\u1ef1 xoay kh\u00f4ng gian n\u00e0y bu\u1ed9c c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng qu\u1ef9 \u0111\u1ea1o ch\u1eb7t ch\u1ebd l\u1ea1i v\u1edbi nhau tr\u00ean m\u1eb7t l\u00e0m vi\u1ec7c ho\u1ea1t \u0111\u1ed9ng, t\u1ea1o th\u00e0nh m\u1ed9t tr\u01b0\u1eddng c\u01b0\u1eddng \u0111\u1ed9 cao c\u1ee5c b\u1ed9.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>T\u0103ng Flux m\u1ed9t m\u1eb7t so v\u1edbi tri\u1ec7t ti\u00eau \u1edf m\u1eb7t \u0111\u1ed1i di\u1ec7n<\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>T\u0103ng c\u01b0\u1eddng m\u1eb7t ho\u1ea1t \u0111\u1ed9ng:<\/strong> Tr\u00ean b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c ch\u00ednh, c\u00e1c vector tr\u01b0\u1eddng t\u1eeb h\u1ee3p l\u1ea1i m\u1ed9t c\u00e1ch t\u00edch c\u1ef1c, l\u00e0m t\u0103ng m\u1eadt \u0111\u1ed9 flux l\u00ean t\u1edbi 40% so v\u1edbi c\u00e1c b\u1ed1 tr\u00ed nam ch\u00e2m th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 t\u00edch b\u1eb1ng nhau.<\/li>\n<li><strong>Tri\u1ec7t ti\u00eau v\u1ec1 ph\u00eda m\u1eb7t sau:<\/strong> \u1ede m\u1eb7t ng\u01b0\u1ee3c, s\u1ef1 giao thoa ph\u00e1 h\u1ee7y t\u1ea1o ra s\u1ef1 tri\u1ec7t ti\u00eau t\u1eeb tr\u01b0\u1eddng g\u1ea7n nh\u01b0 ho\u00e0n to\u00e0n <strong>t\u1eeb tr\u01b0\u1eddng<\/strong>, ng\u0103n ch\u1eb7n s\u1ef1 nhi\u1ec5u lo\u1ea1n t\u1eeb tr\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam v\u1eadt li\u1ec7u che ch\u1eafn n\u1eb7ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>C\u1ea5u h\u00ecnh M\u1ea3ng Halbach tuy\u1ebfn t\u00ednh so v\u1edbi h\u00ecnh tr\u1ee5<\/h3>\n<p>Ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t hai h\u00ecnh h\u1ecdc n\u1ec1n t\u1ea3ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi d\u1ea5u ch\u00e2n c\u01a1 h\u1ecdc c\u1ee7a b\u1ea1n:<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">C\u1ea5u h\u00ecnh<\/th>\n<th style=\"text-align: left;\">H\u00e0nh vi tr\u01b0\u1eddng<\/th>\n<th style=\"text-align: left;\">\u1ee8ng d\u1ee5ng ch\u00ednh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>D\u1ea3i Halbach tuy\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p<\/strong><\/td>\n<td style=\"text-align: left;\">S\u1eafp x\u1ebfp ph\u1eb3ng t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb t\u1eadp trung tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t ph\u1eb3ng.<\/td>\n<td style=\"text-align: left;\">H\u1ec7 th\u1ed1ng Maglev, \u0111\u01b0\u1eddng d\u1eabn truy\u1ec1n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh v\u00e0 d\u1ee5ng c\u1ee5 khoa h\u1ecdc.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Nam ch\u00e2m cylnder Halbach<\/strong><\/td>\n<td style=\"text-align: left;\">B\u1ed9 l\u1eafp annular t\u1eadp trung tr\u01b0\u1eddng m\u1ea1nh ho\u00e0n to\u00e0n b\u00ean trong (ho\u1eb7c b\u00ean ngo\u00e0i) l\u1ed7 rotor.<\/td>\n<td style=\"text-align: left;\">\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n c\u00f4ng su\u1ea5t cao, gh\u00e9p t\u1eeb t\u1eeb, v\u00e0 quang h\u1ecdc h\u1ea1t.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>L\u1ee3i \u00edch ch\u1ee7 ch\u1ed1t c\u1ee7a m\u1ed9t magnet v\u0129nh vi\u1ec5n Halbach t\u00f9y ch\u1ec9nh<\/h2>\n<p>Khi ch\u00fang t\u00f4i thi\u1ebft k\u1ebf m\u1ed9t <strong>nam ch\u00e2m v\u0129nh vi\u1ec5n Halbach t\u00f9y ch\u1ec9nh<\/strong>, ch\u00fang t\u00f4i m\u1edf kh\u00f3a hi\u1ec7u qu\u1ea3 t\u1eeb tr\u01b0\u1eddng m\u00e0 nam ch\u00e2m s\u1eb5n c\u00f3 tr\u00ean th\u1ecb tr\u01b0\u1eddng kh\u00f4ng th\u1ec3 s\u00e1nh \u0111\u01b0\u1ee3c. B\u1eb1ng c\u00e1ch h\u01b0\u1edbng g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 l\u01b0u l\u01b0\u1ee3ng t\u1eeb sang m\u1ed9t b\u00ean, k\u1ef9 thu\u1eadt l\u1eafp gh\u00e9p t\u1eeb t\u00ednh t\u00f9y ch\u1ec9nh lo\u1ea1i b\u1ecf tr\u1ecdng l\u01b0\u1ee3ng ch\u1ebft v\u00e0 t\u1ed1i \u0111a h\u00f3a c\u00f4ng su\u1ea5t trong footprint nh\u1ecf g\u1ecdn.<\/p>\n<hr \/>\n<h3>C\u00e1c l\u1ee3i \u00edch ch\u00ednh nh\u00ecn nhanh<\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>T\u1ed1i \u0111a h\u00f3a m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng trong kh\u00f4ng gian h\u1eb9p:<\/strong> B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nam ch\u00e2m neodymium c\u00f3 m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng cao trong m\u1ed9t <strong>d\u1ea3i t\u1eeb m\u1ed9t m\u1eb7t Halbach<\/strong>, ch\u00fang ta c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng l\u00ean t\u1edbi 40% so v\u1edbi c\u00e1c c\u1ea5u h\u00ecnh nam ch\u00e2m th\u00f4ng th\u01b0\u1eddng m\u00e0 kh\u00f4ng t\u0103ng k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd.<\/li>\n<li><strong>Lo\u1ea1i b\u1ecf l\u1edbp ch\u1eafn t\u1eeb ngo\u00e0i n\u1eb7ng:<\/strong> T\u1ef1 nhi\u00ean <strong>t\u1eeb tr\u01b0\u1eddng<\/strong> \u1edf ph\u00eda kh\u00f4ng l\u00e0m vi\u1ec7c cung c\u1ea5p s\u1ef1 ch\u1eafn t\u1eeb t\u00edch h\u1ee3p <strong>gi\u1ea3m thi\u1ec3u ch\u1eafn t\u1eeb<\/strong>. B\u1ea1n kh\u00f4ng c\u00f2n c\u1ea7n l\u1edbp l\u01b0ng s\u1eaft n\u1eb7ng \u0111\u1ec3 ch\u1ee9a flux l\u1ea1.<\/li>\n<li><strong>\u0110i\u1ec1u ch\u1ec9nh Gradient tr\u01b0\u1eddng t\u1eeb:<\/strong> Ch\u00fang t\u00f4i tinh ch\u1ec9nh gradient tr\u01b0\u1eddng \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi th\u00f4ng s\u1ed1 h\u1ec7 th\u1ed1ng exact, cho d\u00f9 b\u1ea1n \u0111ang thi\u1ebft k\u1ebf c\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng tuy\u1ebfn t\u00ednh t\u00f9y ch\u1ec9nh, c\u1ea3m bi\u1ebfn, hay t\u1ed1i \u01b0u h\u00f3a <a href=\"https:\/\/nbaem.com\/vi\/what-is-magnetic-coupling-in-transformer\/\">s\u1ef1 gh\u00e9p t\u1eeb trong m\u00e1y bi\u1ebfn \u00e1p<\/a> h\u1ec7 th\u1ed1ng cho truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 cao.<\/li>\n<li><strong>Gi\u1ea3m c\u00e2n drastic cho h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 &amp; thi\u1ebft b\u1ecb c\u1ea7m tay:<\/strong> Lo\u1ea1i b\u1ecf v\u1ecf s\u1eaft n\u1eb7ng l\u00e0m gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng \u0111\u00e1ng k\u1ec3, khi\u1ebfn c\u00e1c c\u1ee5m n\u00e0y l\u00fd t\u01b0\u1edfng cho drone, \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf c\u1ea7m tay.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>Nam ch\u00e2m chu\u1ea9n vs M\u1ea3ng Halbach t\u00f9y ch\u1ec9nh<\/h3>\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;\">L\u1eafp gh\u00e9p Nam ch\u00e2m v\u0129nh c\u1eedu chu\u1ea9n<\/th>\n<th style=\"text-align: left;\">Nam ch\u00e2m v\u0129nh c\u1eedu d\u1ea1ng Halbach t\u00f9y ch\u1ec9nh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>T\u1eadp trung flux<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110\u1ed1i x\u1ee9ng (chia l\u00e0m hai b\u00ean)<\/td>\n<td style=\"text-align: left;\">T\u1eadp trung h\u1ea7u nh\u01b0 ho\u00e0n to\u00e0n v\u00e0o m\u1ed9t m\u1eb7t l\u00e0m vi\u1ec7c<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Nhu c\u1ea7u che ch\u1eafn<\/strong><\/td>\n<td style=\"text-align: left;\">Y\u00eau c\u1ea7u \u0111\u1ec7m kim lo\u1ea1i n\u1eb7ng b\u1eb1ng s\u1eaft ho\u1eb7c th\u00e9p<\/td>\n<td style=\"text-align: left;\">C\u1ea7n che ch\u1eafn b\u1ed5 sung t\u1ed1i thi\u1ec3u ho\u1eb7c kh\u00f4ng c\u00f3<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>T\u1ec9 l\u1ec7 c\u00f4ng su\u1ea5t tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng<\/strong><\/td>\n<td style=\"text-align: left;\">V\u1eeba ph\u1ea3i<\/td>\n<td style=\"text-align: left;\">C\u1ef1c k\u1ef3 cao<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Tu\u1ef3 ch\u1ec9nh tr\u01b0\u1eddng<\/strong><\/td>\n<td style=\"text-align: left;\">C\u00e1c h\u00ecnh d\u1ea1ng tr\u01b0\u1eddng c\u01a1 b\u1ea3n c\u1ed1 \u0111\u1ecbnh<\/td>\n<td style=\"text-align: left;\">\u0110\u1ed9 m\u1ea1nh v\u00e0 gradient tr\u01b0\u1eddng ho\u00e0n to\u00e0n t\u00f9y ch\u1ec9nh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u cho l\u1eafp gh\u00e9p Halbach t\u00f9y ch\u1ec9nh<\/h2>\n<p>Ch\u1ecdn h\u1ee3p kim ph\u00f9 h\u1ee3p l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t khi ch\u1ebf t\u1ea1o m\u1ed9t <strong>nam ch\u00e2m v\u0129nh vi\u1ec5n Halbach t\u00f9y ch\u1ec9nh<\/strong>. Nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh, ph\u01a1i nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1ee5c ti\u00eau m\u1eadt \u0111\u1ed9 flux x\u00e1c \u0111\u1ecbnh v\u1eadt li\u1ec7u n\u00e0o mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t. Tr\u01b0\u1edbc khi ho\u00e0n thi\u1ec7n thi\u1ebft k\u1ebf, \u0111\u00e1nh gi\u00e1 v\u1eadt li\u1ec7u nam ch\u00e2m t\u1ed1t nh\u1ea5t <a href=\"https:\/\/nbaem.com\/vi\/what-magnet-materials-are-best-for-halbach-arrays\/\">v\u1eadt li\u1ec7u nam ch\u00e2m cho m\u1ea3ng Halbach<\/a> gi\u00fap tr\u00e1nh m\u1ea5t t\u1eeb v\u00e0 h\u1ecfng c\u1ea5u tr\u00fac do nhi\u1ec7t.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Lo\u1ea1i v\u1eadt li\u1ec7u<\/th>\n<th style=\"text-align: left;\">S\u1ea3n ph\u1ea9m N\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a ($BH_{max}$)<\/th>\n<th style=\"text-align: left;\">Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/th>\n<th style=\"text-align: left;\">\u01afu \u0111i\u1ec3m ch\u00ednh<\/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;\">35 \u2013 52 MGOe<\/td>\n<td style=\"text-align: left;\">\u0110\u1ebfn 220\u00b0C<\/td>\n<td style=\"text-align: left;\">C\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng t\u1ed1i \u0111a tr\u00ean footprint t\u1ed1i thi\u1ec3u<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Cobalt Samari (SmCo)<\/strong><\/td>\n<td style=\"text-align: left;\">18 \u2013 32 MGOe<\/td>\n<td style=\"text-align: left;\">L\u00ean \u0111\u1ebfn 350\u00b0C<\/td>\n<td style=\"text-align: left;\">\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>NdFeB Neodymium cho Hi\u1ec7u su\u1ea5t Ph\u1ea3n x\u1ea1 t\u1eeb t\u1ed1i \u0111a<\/h3>\n<p>Khi kh\u00f4ng gian h\u1ea1n ch\u1ebf v\u00e0 \u0111\u1ed9 m\u1ea1nh t\u1eeb tr\u01b0\u1eddng t\u1ed1i \u0111a l\u00e0 b\u1eaft bu\u1ed9c, nam ch\u00e2m neodymium c\u00f3 m\u1eadt \u0111\u1ed9 t\u1eeb cao l\u00e0 l\u1ef1a ch\u1ecdn ch\u00ednh c\u1ee7a ch\u00fang t\u00f4i. NdFeB cung c\u1ea5p c\u00e1ch\u96c6\u4e2d tr\u01b0\u1eddng t\u1eeb cao nh\u1ea5t tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb th\u1ec3 t\u00edch, ph\u00f9 h\u1ee3p cho \u0111\u1ed9ng c\u01a1 c\u00f3 m\u00f4-men xo\u1eafn l\u1edbn, actuator nh\u1ecf g\u1ecdn v\u00e0 thi\u1ebft b\u1ecb ch\u00ednh x\u00e1c di \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng d\u01b0\u1edbi 150\u00b0C.<\/p>\n<h3>Samarium Cobalt (SmCo) cho \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh \u1edf Nhi\u1ec7t \u0111\u1ed9 Cao<\/h3>\n<p>\u0110\u1ed1i v\u1edbi \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nghi\u00eam tr\u1ecdng, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng Samarium Cobalt. Kh\u00e1m ph\u00e1 <a href=\"https:\/\/nbaem.com\/vi\/what-are-smco-magnets-used-for\/\">c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a nam ch\u00e2m SmCo<\/a> nh\u1eefng vai tr\u00f2 thi\u1ebft y\u1ebfu c\u1ee7a ch\u00fang trong c\u1ea3m bi\u1ebfn h\u00e0ng aerospace, \u1ed5 \u0111\u0129a qu\u00e2n s\u1ef1, v\u00e0 c\u00f4ng c\u1ee5 \u1edf \u0111\u00e1y gi\u1ebfng. A <strong>M\u1ea3ng Halbach SmCo<\/strong> gi\u1eef nguy\u00ean c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1eeb t\u00ednh \u1edf nhi\u1ec7t \u0111\u1ed9 cao m\u00e0 kh\u00f4ng c\u00f3 nguy c\u01a1 m\u1ea5t t\u1eeb t\u00ednh.<\/p>\n<h3>L\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn v\u1ecf b\u1ecdc t\u00f9y ch\u1ec9nh<\/h3>\n<p>H\u1ee3p kim \u0111\u1ea5t hi\u1ebfm ti\u00eau chu\u1ea9n d\u1ec5 m\u1ebb v\u00e0 \u0103n m\u00e1m khi ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m ho\u1eb7c h\u01a1i h\u00f3a h\u1ecdc. Ch\u00fang t\u00f4i t\u00f9y ch\u1ec9nh v\u1ecf c\u1ea5u tr\u00fac v\u00e0 \u00e1p d\u1ee5ng c\u00e1c x\u1eed l\u00fd b\u1ec1 m\u1eb7t chuy\u00ean d\u1ee5ng \u0111\u1ec3 gi\u1eef c\u00e1c t\u1ed5 h\u1ee3p b\u1ec1n:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>L\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t:<\/strong> Ni-Cu-Ni, epoxy nh\u1ef1a, Parylene v\u00e0 c\u00e1c x\u1eed l\u00fd l\u00e0m b\u1ec1n h\u00f3a \u0111\u1ec3 ng\u0103n oxi h\u00f3a.<\/li>\n<li><strong>\u1ed0ng l\u1ed3ng c\u1ea5u tr\u00fac:<\/strong> V\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 (316L), titanium ho\u1eb7c nh\u00f4m \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 ch\u1ee9a \u0111\u00e8 l\u00ean c\u00e1c l\u1ef1c \u0111\u1ea9y c\u01a1 h\u1ecdc m\u1ea1nh m\u1ebd.<\/li>\n<li><strong>\u0110\u00f3ng k\u00edn tuy\u1ec7t \u0111\u1ed1i:<\/strong> V\u1ecf ho\u00e0n to\u00e0n \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i ho\u1eb7c h\u00e0n laser \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u1ee9ng d\u1ee5ng d\u01b0\u1edbi bi\u1ec3n, ng\u1eadp n\u01b0\u1edbc ho\u1eb7c ch\u00e2n kh\u00f4ng cao.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>C\u00e2n nh\u1eafc k\u1ef9 thu\u1eadt &amp; thi\u1ebft k\u1ebf cho M\u1ea3ng Halbach t\u00f9y ch\u1ec9nh<\/h2>\n<p>X\u00e2y d\u1ef1ng m\u1ed9t hi\u1ec7u su\u1ea5t cao <strong>nam ch\u00e2m v\u0129nh vi\u1ec5n Halbach t\u00f9y ch\u1ec9nh<\/strong> \u0111\u00f2i h\u1ecfi l\u1eadp k\u1ebf ho\u1ea1ch v\u1eadt l\u00fd ch\u00ednh x\u00e1c, k\u1ef9 thu\u1eadt c\u1ea5u tr\u00fac v\u00e0 m\u00f4 ph\u1ecfng t\u1eeb tr\u01b0\u1eddng ch\u00ednh x\u00e1c. Ch\u00fang t\u00f4i \u0111\u00e1nh gi\u00e1 ba y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i trong giai \u0111o\u1ea1n k\u1ef9 thu\u1eadt \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ea7u ra tr\u01b0\u1eddng t\u1ed1i \u0111a v\u00e0 \u0111\u1ed9 tin c\u1eady c\u01a1 h\u1ecdc l\u00e2u d\u00e0i.<\/p>\n<h3>T\u00ednh to\u00e1n g\u00f3c ph\u00e2n \u0111o\u1ea1n v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng<\/h3>\n<p>Ph\u00e2n b\u1ed1 tr\u01b0\u1eddng ph\u1ee5 thu\u1ed9c tr\u1ef1c ti\u1ebfp v\u00e0o h\u01b0\u1edbng ph\u00e2n \u0111o\u1ea1n nam ch\u00e2m (th\u01b0\u1eddng l\u00e0 c\u00e1c b\u01b0\u1edbc quay 45\u00b0 ho\u1eb7c 90\u00b0). C\u00e1c g\u00f3c quay tinh vi h\u01a1n t\u1ea1o ra h\u1ed3 s\u01a1 tr\u01b0\u1eddng m\u01b0\u1ee3t h\u01a1n v\u00e0 t\u1eadp trung m\u1ea1nh h\u01a1n, nh\u01b0ng ch\u00fang l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p s\u1ea3n xu\u1ea5t. Ch\u00fang t\u00f4i t\u00ednh to\u00e1n ch\u00ednh x\u00e1c <a href=\"https:\/\/nbaem.com\/vi\/what-is-the-strength-of-the-halbach-array-magnet-field\/\">\u0111\u1ed9 m\u1ea1nh c\u1ee7a tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng Halbach<\/a> s\u1eed d\u1ee5ng ph\u00e2n t\u00edch ph\u1ea7n t\u1eed h\u1eefu h\u1ea1n n\u00e2ng cao (FEA) \u0111\u1ec3 c\u0103n ch\u1ec9nh h\u00ecnh h\u1ecdc, c\u1ea5p v\u1eadt li\u1ec7u v\u00e0 h\u01b0\u1edbng m\u1ea1ch v\u1edbi y\u00eau c\u1ea7u tr\u01b0\u1eddng m\u1ee5c ti\u00eau.<\/p>\n<h3>Qu\u1ea3n l\u00fd l\u1ef1c \u0111\u1ea9y cao trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p<\/h3>\n<p>Thi\u1ebft k\u1ebf Halbach bu\u1ed9c nam ch\u00e2m v\u0129nh vi\u1ec5n v\u00e0o c\u00e1c h\u01b0\u1edbng b\u1ea5t th\u01b0\u1eddng n\u01a1i c\u00e1c c\u1ef1c gi\u1ed1ng \u0111\u1ea9y l\u1eabn nhau. Nh\u1eefng l\u1ef1c \u0111\u1ea9y m\u1ea1nh n\u00e0y l\u00e0m cho vi\u1ec7c \u0111\u1eb7t t\u1eebng ph\u1ea7n b\u1eb1ng tay tr\u1edf n\u00ean nguy hi\u1ec3m v\u00e0 d\u1ec5 d\u1eabn \u0111\u1ebfn l\u1ec7ch tr\u1ee5c.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Fixturing tu\u1ef3 ch\u1ec9nh:<\/strong> Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf c\u00e1c k\u1eb9p phi t\u1eeb t\u00ednh v\u00e0 \u1ed1ng d\u1eabn c\u0103n ch\u1ec9nh th\u1ee7y l\u1ef1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u00e9p nam ch\u00e2m v\u00e0o v\u1ecb tr\u00ed m\u1ed9t c\u00e1ch an to\u00e0n.<\/li>\n<li><strong>Li\u00ean k\u1ebft c\u1ea5u tr\u00fac:<\/strong> S\u00e1p epoxy ch\u1ecbu l\u1ef1c cao \u0111i k\u00e8m v\u1edbi v\u1ecf b\u1eb1ng titanium ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9 phi t\u1eeb t\u00ednh gi\u1eef ch\u1eb7t c\u00e1c \u0111o\u1ea1n \u1edf \u0111\u00fang v\u1ecb tr\u00ed.<\/li>\n<li><strong>\u00c9p chu\u1ea9n x\u00e1c:<\/strong> T\u1ea3i c\u01a1 h\u1ecdc c\u00f3 ki\u1ec3m so\u00e1t ng\u0103n ng\u1eeba v\u1eadt li\u1ec7u nam ch\u00e2m d\u1ec5 v\u1ee1 m\u1ebb ho\u1eb7c n\u1ee9t khi ch\u1ecbu \u00e1p l\u1ef1c.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Dung sai ch\u1ebf t\u1ea1o v\u00e0 t\u1ed1i \u01b0u h\u00f3a khe h\u1edf kh\u00ed<\/h3>\n<p>Kho\u1ea3ng c\u00e1ch kh\u00f4ng kh\u00ed gi\u1eefa c\u00e1c kh\u1ed1i nam ch\u00e2m ri\u00eang l\u1ebb ho\u1eb7c gi\u1eefa b\u1ec1 m\u1eb7t m\u1ea3ng v\u00e0 m\u1ee5c ti\u00eau v\u1eadn h\u00e0nh l\u00e0m gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng m\u1ed9t c\u00e1ch nhanh ch\u00f3ng. Ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc ch\u1eb7t ch\u1ebd l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1eadp trung flux cao.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Thi\u1ebft k\u1ebf Bi\u1ebfn \u0111\u1ed5i<\/th>\n<th style=\"text-align: left;\">Dung sai &amp; Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/th>\n<th style=\"text-align: left;\">\u1ea2nh h\u01b0\u1edfng ch\u1ee9c n\u0103ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Dung sai k\u00edch th\u01b0\u1edbc<\/strong><\/td>\n<td style=\"text-align: left;\">\u00b10.02 mm t\u1edbi \u00b10.05 mm<\/td>\n<td style=\"text-align: left;\">Gi\u1ea3m thi\u1ec3u c\u00e1c khe h\u1edf vi gi\u1eefa c\u00e1c kh\u1ed1i nam ch\u00e2m li\u1ec1n k\u1ec1<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Gi\u1ea3m Thi\u1ec3u Kho\u1ea3ng Tr\u1ed1ng Kh\u00f4ng Kh\u00ed<\/strong><\/td>\n<td style=\"text-align: left;\">Thi\u1ebft k\u1ebf &lt; 0,2 mm khi c\u00f3 th\u1ec3<\/td>\n<td style=\"text-align: left;\">T\u1ed1i \u01afu H\u00f3a M\u1eadt L\u1ef1c D\u00f2ng Truy\u1ec1n S\u1eed D\u1ee5ng Tr\u00ean B\u1ec1 M\u1eb7t L\u00e0m Vi\u1ec7c.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>\u0110\u1ed9 Ch\u00ednh X\u00e1c G\u00f3c<\/strong><\/td>\n<td style=\"text-align: left;\">Vector t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb<\/td>\n<td style=\"text-align: left;\">Lo\u1ea1i b\u1ecf m\u00e9o tr\u01b0\u1eddng v\u00e0 \u0111\u01b0\u1eddng ph\u00e2n b\u1ed1 t\u1eeb t\u00ednh kh\u00f4ng \u0111\u1ed1i x\u1ee9ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u1ee8ng D\u1ee5ng Ph\u1ed5 Bi\u1ebfn Cho M\u1ea3ng Halbach T\u00f9y Ch\u1ec9nh<\/h2>\n<p>Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf t\u1eebng <strong>nam ch\u00e2m v\u0129nh vi\u1ec5n Halbach t\u00f9y ch\u1ec9nh<\/strong> l\u1eafp gh\u00e9p \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c t\u1eadp trung tr\u01b0\u1eddng ph\u1ee9c t\u1ea1p tr\u00ean c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u00f4ng ngh\u1ec7 cao. B\u1eb1ng c\u00e1ch directing flux ho\u00e0n to\u00e0n v\u1ec1 m\u1ed9t ph\u00eda trong khi lo\u1ea1i b\u1ecf r\u00f2 r\u1ec9 t\u1eeb t\u00ednh \u1edf ph\u00eda kia, nh\u1eefng c\u1ea5u h\u00ecnh chuy\u00ean bi\u1ec7t n\u00e0y m\u1edf kh\u00f3a c\u00e1c c\u1ea3i ti\u1ebfn hi\u1ec7u su\u1ea5t ch\u1ee7 ch\u1ed1t m\u00e0 c\u00e1c thi\u1ebft l\u1eadp nam ch\u00e2m th\u00f4ng th\u01b0\u1eddng kh\u00f4ng th\u1ec3 s\u00e1nh \u0111\u01b0\u1ee3c.<\/p>\n<h3>\u0110\u1ed9ng C\u01a1 \u0110i\u1ec7n Hi\u1ec7u Su\u1ea5t Cao v\u00e0 C\u00f2i Xoay Kh\u00f4ng Ch\u1ed5i<\/h3>\n<p>Trong c\u00e1c thi\u1ebft k\u1ebf <strong>m\u1ea3ng halbach hi\u1ec7n \u0111\u1ea1i<\/strong>, t\u1eadp trung s\u1ee9c t\u1eeb tr\u1ef1c ti\u1ebfp v\u1ec1 ph\u00eda cu\u1ed9n stator l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn t\u1ed5ng th\u1ec3. Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng <strong>nam ch\u00e2m neodymium m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng cao<\/strong> \u0111\u1ec3 lo\u1ea1i b\u1ecf t\u1ea5m l\u01b0ng s\u1eaft n\u1eb7ng, gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng rotor \u0111\u1ed9ng v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u00f4ng su\u1ea5t. C\u00e1c k\u1ef9 thu\u1eadt truy\u1ec1n t\u1eeb t\u1eeb tr\u01b0\u1eddng c\u1ea3m \u1ee9ng t\u01b0\u01a1ng t\u1ef1 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng t\u1eeb tr\u01b0\u1eddng ti\u1ebfp x\u00fac kh\u00f4ng c\u00f3 thi\u1ec7t h\u1ea1i cho t\u1ea3i tr\u1ecdng n\u1eb7ng <a href=\"https:\/\/nbaem.com\/vi\/what-is-mining-magnetic-coupling-and-how-it-works\/\">kh\u1edbp n\u1ed1i t\u1eeb tr\u01b0\u1eddng t\u1eeb t\u00ednh<\/a> c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ec3 x\u1eed l\u00fd t\u1ea3i tr\u1ecdng v\u1eadn h\u00e0nh c\u1ef1c \u0111oan m\u00e0 kh\u00f4ng ti\u1ebfp x\u00fac ho\u1eb7c m\u00e0i m\u00f2n c\u01a1 h\u1ecdc.<\/p>\n<h3>H\u1ec7 th\u1ed1ng \u0110\u1ecbnh v\u1ecb t\u1eeb v\u00e0 Truy\u1ec1n \u0111\u1ed9ng Song song<\/h3>\n<p>C\u1ea7n t\u1ed1i \u0111a l\u1ef1c \u0111\u1ea9y v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng ch\u1ebft t\u1ed1i thi\u1ec3u:<br \/>\n<strong>T\u1ed5 h\u1ee3p M\u1ea3ng Halbach tuy\u1ebfn t\u00ednh:<\/strong> Sinh ra l\u1ef1c \u0111\u1ee1 v\u00e0 d\u1eabn h\u01b0\u1edbng th\u1ee5 \u0111\u1ed9ng m\u1ea1nh cho t\u00e0u Maglev di chuy\u1ec3n<br \/>\n<strong>C\u00e1c \u0111\u1ed9ng c\u01a1 tuy\u1ebfn t\u00ednh t\u1ed1c \u0111\u1ed9 cao:<\/strong> Cung c\u1ea5p l\u1ef1c \u0111\u1ea9y li\u00ean t\u1ee5c, m\u01b0\u1ee3t m\u00e0 cho c\u00e1c thi\u1ebft b\u1ecb v\u1eadn chuy\u1ec3n t\u1ef1 \u0111\u1ed9ng trong nh\u00e0 m\u00e1y v\u00e0 c\u00e1c b\u1ed9 k\u00edch ho\u1ea1t ch\u00ednh x\u00e1c.<br \/>\n<strong>Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng:<\/strong> Lo\u1ea1i b\u1ecf kh\u1ed1i l\u01b0\u1ee3ng c\u1ea5u tr\u00fac th\u00eam, h\u1ea1 th\u1ea5p tr\u1ef1c ti\u1ebfp y\u00eau c\u1ea7u c\u00f4ng su\u1ea5t c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<h3>M\u00e1y gia t\u1ed1c h\u1ea1t v\u00e0 thi\u1ebft b\u1ecb ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u1eb7c bi\u1ec7t<\/h3>\n<p>C\u00e1c h\u1ec7 th\u1ed1ng t\u1eadp trung ch\u00f9m tia ti\u00ean ti\u1ebfn d\u1ef1a v\u00e0o h\u00ecnh h\u1ecdc tr\u01b0\u1eddng \u0111\u1ed3ng nh\u1ea5t. Ch\u00fang t\u00f4i x\u00e2y d\u1ef1ng c\u00e1c t\u00f9y ch\u1ec9nh <strong>m\u1ed9t nam ch\u00e2m halbach h\u00ecnh tr\u1ee5<\/strong> c\u00e1c c\u1ea5u tr\u00fac \u0111\u1ec3 t\u1eadp trung, d\u1eabn h\u01b0\u1edbng v\u00e0 \u0111i\u1ec1u khi\u1ec3n c\u00e1c ch\u00f9m tia mang \u0111i\u1ec7n t\u00edch. Vi\u1ec7c containment tr\u01b0\u1eddng v\u1ed1n c\u00f3 cho ph\u00e9p c\u00e1c c\u01a1 s\u1edf nghi\u00ean c\u1ee9u duy tr\u00ec c\u00e1c tr\u01b0\u1eddng m\u1ea1nh v\u00e0 nh\u1eafm m\u1ee5c ti\u00eau cao trong m\u1ed9t footprint \u043a\u043e\u043c\u043f\u0430\u043a\u0442 m\u00e0 kh\u00f4ng ph\u1ea3i th\u00eam shielding t\u1eeb t\u00ednh n\u1eb7ng.<\/p>\n<h3>Thi\u1ebft b\u1ecb H\u00ecnh \u1ea3nh Y khoa v\u00e0 C\u1ea3m bi\u1ebfn Ch\u00ednh x\u00e1c<\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>H\u1ec7 th\u1ed1ng MRI C\u1ea7m tay:<\/strong> Khai th\u00e1c <strong>d\u1ea3i t\u1eeb m\u1ed9t m\u1eb7t Halbach<\/strong> c\u00e1c c\u1ea5u h\u00ecnh cho ph\u00e9p nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ebf t\u1ea1o m\u00e1y qu\u00e9t MRI nh\u1eb9, t\u1ea1i ch\u1ed7 t\u1ed1t<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn Tr\u01b0\u1eddng Ch\u00ednh x\u00e1c:<\/strong> Cung c\u1ea5p c\u00e1c v\u00f9ng t\u1eeb \u0111\u1ed3ng nh\u1ea5t c\u1ef1c k\u1ef3 quan tr\u1ecdng cho c\u1ea3m bi\u1ebfn v\u1ecb tr\u00ed \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ecbnh v\u1ecb.<\/li>\n<li><strong>Ki\u1ec3m so\u00e1t nhi\u1ec5u t\u00edch h\u1ee3p:<\/strong> Ng\u0103n ch\u1eb7n tr\u01b0\u1eddng t\u1eeb th\u1ea5t tho\u1ea3ng l\u00e0m nhi\u1ec5u c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n t\u1eed l\u00e2n c\u1eadn.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 M\u1ea3ng Halbach t\u00f9y ch\u1ec9nh<\/h2>\n<h3>T\u00f9y ch\u1ec9nh Tr\u01b0\u1eddng T\u1eeb 3D v\u00e0 H\u00ecnh tr\u00f2n<\/h3>\n<p>V\u00e2ng, ch\u00fang t\u00f4i th\u01b0\u1eddng thi\u1ebft k\u1ebf <strong>nam ch\u00e2m v\u0129nh vi\u1ec5n Halbach t\u00f9y ch\u1ec9nh<\/strong> c\u00e1c thi\u1ebft l\u1eadp v\u1edbi h\u00ecnh h\u1ecdc 3D ph\u1ee9c t\u1ea1p ho\u1eb7c h\u00ecnh h\u1ecdc tr\u00f2n. Trong khi m\u1ed9t <strong>b\u1ed9 gh\u00e9p m\u1ea3ng halbach tuy\u1ebfn t\u00ednh<\/strong> h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng t\u1eeb h\u00f3a t\u1edbi m\u1ed9t m\u1eb7t ph\u1eb3ng ph\u1eb3ng duy nh\u1ea5t, m\u1ed9t <strong>m\u1ed9t nam ch\u00e2m halbach h\u00ecnh tr\u1ee5<\/strong> \u0111i\u1ec1u h\u01b0\u1edbng tr\u01b0\u1eddng gia t\u0103ng ho\u1eb7c ho\u00e0n to\u00e0n b\u00ean trong l\u1ed7 (cho stato \u0111\u1ed9ng c\u01a1 v\u00e0 t\u1eadp trung ch\u00f9m) ho\u1eb7c ho\u00e0n to\u00e0n \u1edf chu vi ph\u00eda ngo\u00e0i. G\u00f3c segment t\u00f9y ch\u1ec9nh cho ph\u00e9p ch\u00fang t\u00f4i \u0111\u1ecbnh h\u00ecnh gradient tr\u01b0\u1eddng t\u1eeb h\u00f3a th\u00e0nh \u0111a c\u1ef1c, h\u00ecnh c\u1ea7u, ho\u1eb7c c\u00e1c \u0111\u01b0\u1eddng flux 3D c\u1ee5c b\u1ed9 \u0111\u01b0\u1ee3c t\u00f9y ch\u1ec9nh theo y\u00eau c\u1ea7u khe h\u1edf kh\u00f4ng kh\u00ed ch\u00ednh x\u00e1c.<\/p>\n<h3>M\u1ea3ng Halbach t\u00f9y ch\u1ec9nh so v\u1edbi B\u1ed9 gh\u00e9p t\u1eeb chu\u1ea9n<\/h3>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th style=\"text-align: left;\">M\u1ea3ng Halbach t\u00f9y ch\u1ec9nh<\/th>\n<th style=\"text-align: left;\">B\u1ed9 gh\u00e9p t\u1eeb chu\u1ea9n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Ph\u00e2n ph\u1ed1i flux<\/strong><\/td>\n<td style=\"text-align: left;\">C\u1ea3i thi\u1ec7n m\u1ed9t m\u1eb7t b\u1eb1ng qua <strong>t\u1eeb tr\u01b0\u1eddng<\/strong><\/td>\n<td style=\"text-align: left;\">C\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng b\u1eb1ng nhau \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 \u1edf c\u1ea3 hai b\u00ean<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Nhu c\u1ea7u che ch\u1eafn<\/strong><\/td>\n<td style=\"text-align: left;\">Y\u00eau c\u1ea7u s\u1eaft l\u01b0ng ngo\u00e0i t\u1ed1i thi\u1ec3u \u0111\u1ebfn b\u1eb1ng 0<\/td>\n<td style=\"text-align: left;\">T\u1ea5m \u0111\u1ebf th\u00e9p n\u1eb7ng c\u1ea7n d\u00f9ng<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Tr\u1ecdng l\u01b0\u1ee3ng &amp; K\u00edch th\u01b0\u1edbc<\/strong><\/td>\n<td style=\"text-align: left;\">Thi\u1ebft k\u1ebf nh\u1eb9, nh\u1ecf g\u1ecdn cho c\u00e1c thi\u1ebft l\u1eadp t\u1ea3i tr\u1ecdng cao<\/td>\n<td style=\"text-align: left;\">L\u1edbn h\u01a1n v\u00e0 n\u1eb7ng h\u01a1n do l\u1edbp ch\u1eafn b\u00ean ngo\u00e0i<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>C\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng<\/strong><\/td>\n<td style=\"text-align: left;\">T\u1ed1i \u0111a <strong>T\u1ec9 l\u1ec7 flux g\u1ea5p 2 l\u1ea7n<\/strong> \u1edf b\u00ean l\u00e0m vi\u1ec7c<\/td>\n<td style=\"text-align: left;\">Gi\u1edbi h\u1ea1n b\u1edfi c\u0103n ch\u1ec9nh c\u1ed9t ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Th\u1eddi gian d\u1eabn v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 chi ph\u00ed ch\u00ednh<\/h3>\n<p>timeline s\u1ea3n xu\u1ea5t cho c\u00e1c t\u1ed5 h\u1ee3p nam ch\u00e2m t\u00f9y ch\u1ec9nh n\u00f3i chung dao \u0111\u1ed9ng t\u1eeb <strong>3 \u0111\u1ebfn 6 tu\u1ea7n<\/strong> cho nguy\u00ean m\u1eabu, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 s\u1eb5n c\u00f3 v\u1eadt li\u1ec7u v\u00e0 s\u1ea3n xu\u1ea5t ph\u1ee5 ki\u1ec7n.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>C\u00f4ng c\u1ee5 &amp; L\u1ef1c l\u01b0\u1eddng l\u1eafp r\u00e1p:<\/strong> Qu\u1ea3n l\u00fd l\u1ef1c \u0111\u1ea9y m\u1ea1nh gi\u1eefa c\u00e1c \u0111o\u1ea1n nam ch\u00e2m li\u1ec1n k\u1ec1 \u0111\u00f2i h\u1ecfi khu\u00f4n c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn. Hi\u1ec3u bi\u1ebft <a href=\"https:\/\/nbaem.com\/vi\/why-are-halbach-arrays-hard-to-assemble\/\">t\u1ea1i sao c\u00e1c m\u1ea3ng Halbach l\u1ea1i kh\u00f3 l\u1eafp r\u00e1p<\/a> nh\u1ea5n m\u1ea1nh t\u1ea1i sao c\u00e1c thi\u1ebft b\u1ecb ch\u1ee9a chuy\u00ean d\u1ee5ng l\u1ea1i l\u00e0m t\u0103ng chi ph\u00ed thi\u1ebft l\u1eadp ban \u0111\u1ea7u.<\/li>\n<li><strong>\u0110\u1ed9 Ch\u00ednh x\u00e1c V\u1eadt li\u1ec7u:<\/strong> L\u1ef1a ch\u1ecdn <strong>nam ch\u00e2m neodymium m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng cao<\/strong> gi\u1eef chi ph\u00ed th\u1ea5p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, trong khi l\u1ef1a ch\u1ecdn m\u1ed9t <strong>m\u1ea3ng halbach SmCo<\/strong> t\u0103ng chi ph\u00ed cho s\u1ef1 \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li><strong>Dung sai K\u00edch th\u01b0\u1edbc:<\/strong> Gia c\u00f4ng c\u00e1c g\u00f3c ph\u00e2n \u0111o\u1ea1n sub-micro v\u00e0 khe kh\u00ed h\u1eb9p l\u00e0m t\u0103ng chu tr\u00ecnh m\u00e0i ch\u00ednh x\u00e1c.<\/li>\n<li><strong>L\u1edbp ph\u1ee7 B\u1ea3o v\u1ec7:<\/strong> L plating t\u00f9y ch\u1ec9nh (Ni-Cu-Ni, Epoxy, ho\u1eb7c Parylene) cho kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n l\u00e0m t\u0103ng c\u00e1c b\u01b0\u1edbc ch\u1ebf t\u1ea1o.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"references\">\n<h2>Ngu\u1ed3n li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.mdpi.com\/2076-3417\/15\/2\/840\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.mdpi.com\/2076-3417\/15\/2\/840<\/a><\/li>\n<li><a href=\"https:\/\/www.emworks.com\/blog\/simulation-and-analysis-of-halbach-array-magnet-topologies-using-emworks\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.emworks.com\/blog\/simulation-and-analysis-of-halbach-array-magnet-topologies-using-emworks<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Nam ch\u00e2m v\u0129nh vi\u1ec5n m\u1ea3ng Halbach tu\u1ef3 ch\u1ec9nh v\u1edbi h\u00ecnh h\u1ecdc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang, m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng cao, h\u1ed7 tr\u1ee3 FEA chuy\u00ean gia v\u00e0 nguy\u00ean m\u1eabu nhanh.<\/p>","protected":false},"author":1,"featured_media":3963,"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-3964","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\/08\/Custom_Halbach_array_permanent_magnet_cUq.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3964","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=3964"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3964\/revisions"}],"predecessor-version":[{"id":3967,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3964\/revisions\/3967"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3963"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}