{"id":3231,"date":"2025-10-18T09:02:50","date_gmt":"2025-10-18T09:02:50","guid":{"rendered":"https:\/\/nbaem.com\/?p=3231"},"modified":"2025-10-18T09:25:18","modified_gmt":"2025-10-18T09:25:18","slug":"what-is-a-magnetic-force","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-is-a-magnetic-force\/","title":{"rendered":"L\u1ef1c t\u1eeb l\u00e0 g\u00ec"},"content":{"rendered":"<h2>Nh\u1eefng \u0111i\u1ec1u c\u01a1 b\u1ea3n Ch\u00ednh x\u00e1c l\u00e0 g\u00ec v\u1ec1 L\u1ef1c t\u1eeb<\/h2>\n<div id=\"attachment_3223\" style=\"width: 514px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-3223\" class=\"wp-image-3223\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-870x1024.webp\" alt=\"l\u1ef1c t\u1eeb tr\u01b0\u1eddng\" width=\"504\" height=\"593\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-10x12.webp 10w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-200x235.webp 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-255x300.webp 255w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-400x471.webp 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-600x706.webp 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-768x904.webp 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-800x941.webp 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8-870x1024.webp 870w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8.webp 1105w\" sizes=\"(max-width: 504px) 100vw, 504px\" \/><p id=\"caption-attachment-3223\" class=\"wp-caption-text\">l\u1ef1c t\u1eeb tr\u01b0\u1eddng<\/p><\/div>\n<p><strong>l\u1ef1c t\u1eeb<\/strong> l\u00e0 m\u1ed9t l\u1ef1c c\u01a1 b\u1ea3n g\u00e2y ra <em>s\u1ef1 h\u00fat<\/em> or <em>s\u1ef1 \u0111\u1ea9y<\/em> gi\u1eefa c\u00e1c v\u1eadt th\u1ec3 do chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u1ea1t mang \u0111i\u1ec7n t\u00edch trong m\u1ed9t tr\u01b0\u1eddng t\u1eeb, th\u01b0\u1eddng g\u1ecdi l\u00e0 <strong>tr\u01b0\u1eddng B<\/strong>. N\u00f3i \u0111\u01a1n gi\u1ea3n, khi c\u00e1c h\u1ea1t mang \u0111i\u1ec7n t\u00edch nh\u01b0 electron di chuy\u1ec3n qua m\u1ed9t tr\u01b0\u1eddng t\u1eeb, ch\u00fang ch\u1ecbu t\u00e1c d\u1ee5ng c\u1ee7a m\u1ed9t l\u1ef1c c\u00f3 th\u1ec3 \u0111\u1ea9y ho\u1eb7c k\u00e9o ch\u00fang t\u00f9y thu\u1ed9c v\u00e0o h\u01b0\u1edbng v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ee7a ch\u00fang.<\/p>\n<p>C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh c\u1ee7a l\u1ef1c t\u1eeb bao g\u1ed3m:<\/p>\n<ul>\n<li>N\u00f3 lu\u00f4n lu\u00f4n <strong>vu\u00f4ng g\u00f3c<\/strong> v\u1edbi c\u1ea3 v\u1eadn t\u1ed1c c\u1ee7a \u0111i\u1ec7n t\u00edch chuy\u1ec3n \u0111\u1ed9ng v\u00e0 tr\u01b0\u1eddng t\u1eeb.<\/li>\n<li>L\u1ef1c n\u00e0y l\u00e0 <strong>b\u1eb1ng kh\u00f4ng<\/strong> n\u1ebfu \u0111i\u1ec7n t\u00edch \u0111\u1ee9ng y\u00ean ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng <em>song song<\/em> v\u1edbi c\u00e1c \u0111\u01b0\u1eddng s\u1ee9c t\u1eeb.<\/li>\n<\/ul>\n<p>H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t h\u1ea1t mang \u0111i\u1ec7n t\u00edch bay qua c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng v\u00f4 h\u00ecnh. L\u1ef1c m\u00e0 n\u00f3 c\u1ea3m nh\u1eadn kh\u00f4ng ch\u1ec9 d\u1ecdc theo qu\u1ef9 \u0111\u1ea1o ho\u1eb7c tr\u01b0\u1eddng\u2014n\u00f3 t\u00e1c \u0111\u1ed9ng vu\u00f4ng g\u00f3c v\u1edbi c\u1ea3 hai. \u0110\u1ec3 h\u00ecnh dung \u0111i\u1ec1u n\u00e0y, <strong>quy t\u1eafc b\u00e0n tay ph\u1ea3i<\/strong> l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3: h\u00e3y ch\u1ec9 c\u00e1c ng\u00f3n tay c\u1ee7a b\u1ea1n theo h\u01b0\u1edbng v\u1eadn t\u1ed1c, l\u00f2ng b\u00e0n tay h\u01b0\u1edbng v\u1ec1 tr\u01b0\u1eddng t\u1eeb, v\u00e0 ng\u00f3n c\u00e1i c\u1ee7a b\u1ea1n s\u1ebd ch\u1ec9 h\u01b0\u1edbng c\u1ee7a l\u1ef1c t\u1eeb.<\/p>\n<p>V\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c khai th\u00e1c l\u1ef1c t\u1eeb t\u1eeb tr\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh trong c\u00e1c thi\u1ebft b\u1ecb th\u1ef1c t\u1ebf. C\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 <strong>NBAEM<\/strong> cung c\u1ea5p nam ch\u00e2m \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o ch\u00ednh x\u00e1c gi\u00fap duy tr\u00ec m\u1ee9c l\u1ef1c \u0111\u00e1ng tin c\u1eady, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1, c\u1ea3m bi\u1ebfn v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng t\u1eeb tr\u01b0\u1eddng kh\u00e1c.<\/p>\n<p>&nbsp;<\/p>\n<h2>Khoa h\u1ecdc \u0111\u1eb1ng sau c\u00f4ng th\u1ee9c l\u1ef1c t\u1eeb v\u00e0 c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Lorentz_Force_Vector_Cross_Product_Physics_f35J0ZD.webp\" alt=\"V\u1eadt l\u00fd T\u00edch Ch\u1ea5t L\u1ef1c Lorentz v\u00e0 T\u00edch Ph\u00e2n V\u00e9c-t\u01a1\" \/><\/p>\n<p>Trong trung t\u00e2m c\u1ee7a l\u1ef1c t\u1eeb l\u00e0 <strong>ph\u01b0\u01a1ng tr\u00ecnh l\u1ef1c Lorentz<\/strong>:<br \/>\n<strong>F = q (v \u00d7 B + E)<\/strong><\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u00fd ngh\u0129a c\u1ee7a t\u1eebng ph\u1ea7n:<\/p>\n<ul>\n<li><strong>F<\/strong> l\u00e0 l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean h\u1ea1t<\/li>\n<li><strong>q<\/strong> l\u00e0 \u0111i\u1ec7n t\u00edch c\u1ee7a h\u1ea1t<\/li>\n<li><strong>v<\/strong> l\u00e0 v\u1eadn t\u1ed1c, ho\u1eb7c t\u1ed1c \u0111\u1ed9 v\u00e0 h\u01b0\u1edbng c\u1ee7a h\u1ea1t mang \u0111i\u1ec7n<\/li>\n<li><strong>B<\/strong> l\u00e0 tr\u01b0\u1eddng t\u1eeb<\/li>\n<li><strong>E<\/strong> l\u00e0 th\u00e0nh ph\u1ea7n c\u1ee7a \u0111i\u1ec7n tr\u01b0\u1eddng<\/li>\n<\/ul>\n<p>L\u1ef1c t\u1eeb \u0111\u1eb7c bi\u1ec7t xu\u1ea5t ph\u00e1t t\u1eeb t\u00edch c\u00f3 h\u01b0\u1edbng <strong>v \u00d7 B<\/strong>, c\u00f3 ngh\u0129a l\u00e0 l\u1ef1c lu\u00f4n vu\u00f4ng g\u00f3c v\u1edbi c\u1ea3 v\u1eadn t\u1ed1c c\u1ee7a h\u1ea1t v\u00e0 c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c \u0111i\u1ec7n t\u00edch \u0111\u1ee9ng y\u00ean ho\u1eb7c di chuy\u1ec3n song song v\u1edbi t\u1eeb tr\u01b0\u1eddng kh\u00f4ng c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c l\u1ef1c t\u1eeb.<\/p>\n<p>C\u00e1c th\u00ed nghi\u1ec7m v\u1edbi c\u00e1c h\u1ea1t mang \u0111i\u1ec7n, nh\u01b0 electron, cho th\u1ea5y l\u1ef1c t\u1eeb ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n<ul>\n<li>\u0110i\u1ec7n t\u00edch c\u1ee7a h\u1ea1t<\/li>\n<li>T\u1ed1c \u0111\u1ed9 di chuy\u1ec3n c\u1ee7a n\u00f3 (t\u1ed1c \u0111\u1ed9)<\/li>\n<li>G\u00f3c (\u03b8) gi\u1eefa v\u1eadn t\u1ed1c v\u00e0 t\u1eeb tr\u01b0\u1eddng, v\u1edbi l\u1ef1c t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi <strong>sin \u03b8<\/strong> (b\u1eb1ng 0 khi v\u1eadn t\u1ed1c song song ho\u1eb7c ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi tr\u01b0\u1eddng)<\/li>\n<\/ul>\n<p>M\u1ed1i quan h\u1ec7 n\u00e0y gi\u1ea3i th\u00edch t\u1ea1i sao m\u1ed9t h\u1ea1t nh\u1ecf di chuy\u1ec3n th\u1eb3ng theo \u0111\u01b0\u1eddng d\u00e2y tr\u01b0\u1eddng kh\u00f4ng ch\u1ecbu t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c, nh\u01b0ng n\u1ebfu n\u00f3 di chuy\u1ec3n ngang qua, l\u1ef1c s\u1ebd t\u00e1c \u0111\u1ed9ng v\u00e0o.<\/p>\n<p>\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 kh\u00f4ng nh\u1ea7m l\u1eabn l\u1ef1c t\u1eeb v\u1edbi l\u1ef1c \u0111i\u1ec7n. Trong khi l\u1ef1c \u0111i\u1ec7n t\u00e1c d\u1ee5ng tr\u1ef1c ti\u1ebfp l\u00ean c\u00e1c \u0111i\u1ec7n t\u00edch b\u1ea5t k\u1ec3 chuy\u1ec3n \u0111\u1ed9ng, th\u00ec l\u1ef1c t\u1eeb ch\u1ec9 t\u00e1c d\u1ee5ng l\u00ean c\u00e1c \u0111i\u1ec7n t\u00edch \u0111ang chuy\u1ec3n \u0111\u1ed9ng v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o h\u01b0\u1edbng c\u1ee7a ch\u00fang so v\u1edbi tr\u01b0\u1eddng t\u1eeb. C\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1eeb, \u0111o b\u1eb1ng <strong>tesla (T)<\/strong>, \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 m\u1ea1nh c\u1ee7a m\u00f4i tr\u01b0\u1eddng t\u1eeb quanh \u0111i\u1ec7n t\u00edch.<\/p>\n<p>Hi\u1ec3u r\u00f5 t\u00ednh ch\u1ea5t vect\u01a1 c\u1ee7a l\u1ef1c t\u1eeb gi\u00fap \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n v\u00e0 gia t\u1ed1c k\u1ebf h\u1ea1t, n\u01a1i ki\u1ec3m so\u00e1t c\u00e1c \u0111i\u1ec7n t\u00edch chuy\u1ec3n \u0111\u1ed9ng qua tr\u01b0\u1eddng t\u1eeb l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t. \u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 tr\u01b0\u1eddng t\u1eeb v\u00e0 v\u1eadt li\u1ec7u, h\u00e3y xem <a href=\"https:\/\/nbaem.com\/vi\/magnetic-technologies\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>c\u00f4ng ngh\u1ec7 t\u1eeb t\u00ednh<\/strong><\/span><\/a>.<\/p>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a l\u1ef1c t\u1eeb trong th\u1ef1c t\u1ebf V\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/h2>\n<p>L\u1ef1c t\u1eeb \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong nhi\u1ec1u n\u01a1i xung quanh ch\u00fang ta, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u01a1i c\u00f3 c\u00e1c \u0111i\u1ec7n t\u00edch chuy\u1ec3n \u0111\u1ed9ng v\u00e0 d\u00f2ng \u0111i\u1ec7n.<\/p>\n<h3>V\u1ec1 c\u00e1c \u0111i\u1ec7n t\u00edch chuy\u1ec3n \u0111\u1ed9ng<\/h3>\n<p>Khi c\u00e1c h\u1ea1t mang \u0111i\u1ec7n di chuy\u1ec3n qua m\u1ed9t tr\u01b0\u1eddng t\u1eeb, ch\u00fang c\u1ea3m nh\u1eadn m\u1ed9t l\u1ef1c l\u00e0m thay \u0111\u1ed5i h\u01b0\u1edbng c\u1ee7a ch\u00fang. \u0110\u00e2y l\u00e0 nguy\u00ean l\u00fd \u0111\u1eb1ng sau c\u00e1c gia t\u1ed1c k\u1ebf h\u1ea1t m\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc s\u1eed d\u1ee5ng \u0111\u1ec3 nghi\u00ean c\u1ee9u c\u00e1c h\u1ea1t nh\u1ecf, v\u00e0 c\u0169ng gi\u1ea3i th\u00edch c\u00e1ch c\u00e1c tia v\u0169 tr\u1ee5 t\u1eeb kh\u00f4ng gian b\u1ecb u\u1ed1n cong khi ch\u00fang va ch\u1ea1m v\u00e0o tr\u01b0\u1eddng t\u1eeb c\u1ee7a Tr\u00e1i \u0110\u1ea5t.<\/p>\n<h3>V\u1ec1 d\u00f2ng \u0111i\u1ec7n<\/h3>\n<p>D\u00f2ng \u0111i\u1ec7n trong d\u00e2y d\u1eabn c\u0169ng ch\u1ecbu t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c t\u1eeb. C\u00f4ng th\u1ee9c cho \u0111i\u1ec1u n\u00e0y l\u00e0 F = I (L \u00d7 B), trong \u0111\u00f3 I l\u00e0 d\u00f2ng \u0111i\u1ec7n, L l\u00e0 chi\u1ec1u d\u00e0i d\u00e2y, v\u00e0 B l\u00e0 tr\u01b0\u1eddng t\u1eeb. L\u1ef1c n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a c\u00e1c \u0111\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho m\u1ecdi th\u1ee9 t\u1eeb thi\u1ebft b\u1ecb gia d\u1ee5ng \u0111\u1ebfn m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p.<\/p>\n<h3>C\u00e1c v\u00ed d\u1ee5 h\u00e0ng ng\u00e0y<\/h3>\n<p>B\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y l\u1ef1c t\u1eeb ho\u1ea1t \u0111\u1ed9ng h\u00e0ng ng\u00e0y:<\/p>\n<ul>\n<li>Kim la b\u00e0n c\u0103n ch\u1ec9nh theo tr\u01b0\u1eddng t\u1eeb c\u1ee7a Tr\u00e1i \u0110\u1ea5t<\/li>\n<li>M\u00e1y MRI s\u1eed d\u1ee5ng tr\u01b0\u1eddng t\u1eeb \u0111\u1ec3 qu\u00e9t chi ti\u1ebft c\u01a1 th\u1ec3<\/li>\n<li>Loa d\u1ef1a v\u00e0o l\u1ef1c t\u1eeb \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n th\u00e0nh \u00e2m thanh<\/li>\n<\/ul>\n<h3>S\u1ef1 ph\u00f9 h\u1ee3p \u0111\u1ecba ph\u01b0\u01a1ng<\/h3>\n<p>V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a xe \u0111i\u1ec7n (EV) t\u1ea1i Vi\u1ec7t Nam, l\u1ef1c t\u1eeb trong \u0111\u1ed9ng c\u01a1 neodymium ng\u00e0y c\u00e0ng tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n bao gi\u1edd h\u1ebft. C\u00e1c c\u00f4ng ty nh\u01b0 BYD v\u00e0 nh\u00e0 m\u00e1y Tesla t\u1ea1i Th\u01b0\u1ee3ng H\u1ea3i s\u1eed d\u1ee5ng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm m\u1ea1nh m\u1ebd \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u1ed9ng c\u01a1 hi\u1ec7u qu\u1ea3, ph\u1ea3n h\u1ed3i nhanh ch\u00f3ng th\u00fac \u0111\u1ea9y l\u00e0n s\u00f3ng xe \u0111i\u1ec7n. Ch\u1ea5t li\u1ec7u nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ea3m b\u1ea3o c\u00e1c \u0111\u1ed9ng c\u01a1 n\u00e0y cung c\u1ea5p l\u1ef1c \u0111\u1ec1u \u0111\u1eb7n \u0111\u1ec3 v\u1eadn h\u00e0nh m\u01b0\u1ee3t m\u00e0 v\u00e0 \u0111\u00e1ng tin c\u1eady tr\u00ean \u0111\u01b0\u1eddng.<\/p>\n<h2>Th\u00f4ng tin n\u00e2ng cao v\u1ec1 L\u1ef1c T\u1eeb trong V\u1eadt li\u1ec7u v\u00e0 Tr\u01b0\u1eddng<\/h2>\n<p>L\u1ef1c t\u1eeb t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u li\u00ean quan. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1i nh\u00ecn nhanh v\u1ec1 c\u00e1c lo\u1ea1i ch\u00ednh:<\/p>\n<ul>\n<li><strong>H\u1ea5p d\u1eabn ferromagnet<\/strong>: C\u00e1c v\u1eadt li\u1ec7u nh\u01b0 s\u1eaft h\u00fat m\u1ea1nh tr\u01b0\u1eddng t\u1eeb, t\u1ea1o ra l\u1ef1c t\u1eeb m\u1ea1nh m\u1ebd. \u0110\u00e2y l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a nam ch\u00e2m v\u0129nh c\u1eedu.<\/li>\n<li><strong>H\u1ea5p d\u1eabn paramagnet<\/strong>: C\u00e1c v\u1eadt li\u1ec7u n\u00e0y b\u1ecb h\u00fat y\u1ebfu b\u1edfi tr\u01b0\u1eddng t\u1eeb nh\u01b0ng kh\u00f4ng gi\u1eef \u0111\u01b0\u1ee3c t\u1eeb t\u00ednh n\u1ebfu kh\u00f4ng c\u00f3 tr\u01b0\u1eddng ngo\u00e0i.<\/li>\n<li><strong>Diamagnet<\/strong>: C\u00e1c v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea9y nh\u1eb9 tr\u01b0\u1eddng t\u1eeb, th\u1ec3 hi\u1ec7n t\u01b0\u01a1ng t\u00e1c y\u1ebfu nh\u1ea5t.<\/li>\n<\/ul>\n<p>Khi n\u00f3i \u0111\u1ebfn vi\u1ec7c t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb, c\u00f3 hai th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n<ul>\n<li><strong>Nam ch\u00e2m v\u0129nh c\u1eedu<\/strong>, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ea5t hi\u1ebfm nh\u01b0 neodymium-iron-boron (NdFeB), cung c\u1ea5p l\u1ef1c t\u1eeb m\u1ea1nh m\u1ebd, \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng c\u1ea7n ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<li><strong>Nam ch\u00e2m \u0111i\u1ec7n<\/strong> t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb th\u00f4ng qua d\u00f2ng \u0111i\u1ec7n, mang l\u1ea1i kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n nh\u01b0ng c\u1ea7n n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n<p>\u0110\u1ec3 \u0111o l\u1ef1c t\u1eeb ch\u00ednh x\u00e1c, c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 <strong>c\u1ea3m bi\u1ebfn Hall<\/strong> th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Ch\u00fang ph\u00e1t hi\u1ec7n c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1eeb, th\u01b0\u1eddng \u0111o b\u1eb1ng tesla (T). L\u1ef1c t\u1eeb ch\u00ednh \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng newton (N), trong khi c\u00e1c \u0111\u01a1n v\u1ecb c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1eeb nh\u01b0 oersted (Oe) c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u00f9y theo ng\u1eef c\u1ea3nh.<\/p>\n<p>Ch\u1ea5t li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao c\u0169ng r\u1ea5t quan tr\u1ecdng \u1edf \u0111\u00e2y. NBAEM cung c\u1ea5p nam ch\u00e2m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c, mang l\u1ea1i l\u1ef1c t\u1eeb \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi cao. V\u00ed d\u1ee5, nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm c\u1ee7a h\u1ecd \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a kh\u1ea3 n\u0103ng t\u1ea1o l\u1ef1c, \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru v\u00e0 hi\u1ec7u qu\u1ea3 cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam d\u1ef1a v\u00e0o hi\u1ec7u su\u1ea5t cao.<\/p>\n<h2>\u1ee8ng d\u1ee5ng v\u00e0 \u0110\u1ed5i m\u1edbi N\u01a1i L\u1ef1c T\u1eeb Th\u00fac \u0111\u1ea9y T\u01b0\u01a1ng lai<\/h2>\n<p>L\u1ef1c t\u1eeb th\u00fac \u0111\u1ea9y nhi\u1ec1u c\u00f4ng ngh\u1ec7 thi\u1ebft y\u1ebfu ng\u00e0y nay v\u00e0 \u0111ang h\u00ecnh th\u00e0nh t\u01b0\u01a1ng lai c\u1ee7a c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n<h3>\u1ee8ng d\u1ee5ng C\u00f4ng nghi\u1ec7p<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n<\/strong>: Cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho m\u1ecdi th\u1ee9 t\u1eeb thi\u1ebft b\u1ecb gia d\u1ee5ng \u0111\u1ebfn xe \u0111i\u1ec7n, d\u1ef1a v\u00e0o l\u1ef1c t\u1eeb m\u1ea1nh m\u1ebd.<\/li>\n<li><strong>Tuabin gi\u00f3<\/strong>: S\u1eed d\u1ee5ng nam ch\u00e2m \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng gi\u00f3 th\u00e0nh \u0111i\u1ec7n n\u0103ng hi\u1ec7u qu\u1ea3.<\/li>\n<li><strong>\u1ed4 c\u1ee9ng<\/strong>: L\u01b0u tr\u1eef d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch thao t\u00e1c tr\u01b0\u1eddng t\u1eeb tr\u00ean c\u00e1c \u0111\u0129a nh\u1ecf.<\/li>\n<\/ul>\n<p>Kho\u1ea3ng 80 ph\u1ea7n tr\u0103m ngu\u1ed3n cung c\u1ea5p nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm to\u00e0n c\u1ea7u, r\u1ea5t quan tr\u1ecdng cho c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y, \u0111\u1ebfn t\u1eeb Trung Qu\u1ed1c, l\u00e0m n\u1ed5i b\u1eadt m\u1ed1i li\u00ean h\u1ec7 ch\u1eb7t ch\u1ebd gi\u1eefa th\u1ecb tr\u01b0\u1eddng l\u1ef1c t\u1eeb v\u00e0 khu v\u1ef1c n\u00e0y.<\/p>\n<h3>C\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i<\/h3>\n<ul>\n<li><strong>t\u00e0u maglev<\/strong>: S\u1eed d\u1ee5ng t\u1eeb tr\u01b0\u1eddng \u0111\u1ec3 n\u00e2ng \u0111\u1ee1 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p t\u1eeb tr\u01b0\u1eddng \u0111\u1ec3 gi\u1ea3m ma s\u00e1t v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 \u0111\u00e1ng k\u1ec3.<\/li>\n<li><strong>L\u1ef1c l\u01b0\u1ee3ng l\u01b0\u1ee3ng t\u1eed<\/strong>: \u0110\u1ea9y gi\u1edbi h\u1ea1n trong v\u1eadt l\u00fd, m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi cho chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ma s\u00e1t.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb y t\u1ebf<\/strong>: M\u00e1y MRI d\u1ef1a v\u00e0o nam ch\u00e2m \u0111\u1ec3 t\u1ea1o ra h\u00ecnh \u1ea3nh chi ti\u1ebft m\u00e0 kh\u00f4ng c\u1ea7n b\u1ee9c x\u1ea1.<\/li>\n<\/ul>\n<p>Nh\u1eefng \u0111\u1ed5i m\u1edbi n\u00e0y cho th\u1ea5y c\u00e1ch l\u1ef1c t\u1eeb kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n\u2014n\u00f3 l\u00e0 ch\u00eca kh\u00f3a cho c\u00f4ng ngh\u1ec7 th\u1ebf h\u1ec7 ti\u1ebfp theo.<\/p>\n<h3>Th\u00e1ch th\u1ee9c v\u00e0 Gi\u1ea3i ph\u00e1p<\/h3>\n<p>V\u1ea5n \u0111\u1ec1 chu\u1ed7i cung \u1ee9ng c\u00f3 th\u1ec3 g\u00e2y r\u1ee7i ro v\u00ec c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ea5t hi\u1ebfm v\u00e0 nam ch\u00e2m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb m\u1ed9t s\u1ed1 n\u01a1i. C\u00e1c nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady nh\u01b0 NBAEM gi\u00fap gi\u1ea3m thi\u1ec3u nh\u1eefng \u0111i\u1ec3m y\u1ebfu n\u00e0y b\u1eb1ng c\u00e1ch cung c\u1ea5p v\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao, \u1ed5n \u0111\u1ecbnh v\u00e0 giao h\u00e0ng \u0111\u00e1ng tin c\u1eady. C\u00e1c nam ch\u00e2m \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o ch\u00ednh x\u00e1c c\u1ee7a h\u1ecd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u00f4ng nghi\u1ec7p v\u00e0 li\u00ean t\u1ee5c \u0111\u1ed5i m\u1edbi.<\/p>\n<h3>Nh\u1eadn Gi\u1ea3i ph\u00e1p Nam ch\u00e2m T\u00f9y ch\u1ec9nh<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p mu\u1ed1n t\u1ed1i \u01b0u h\u00f3a l\u1ef1c t\u1eeb trong s\u1ea3n ph\u1ea9m c\u1ee7a m\u00ecnh, NBAEM cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u hi\u1ec7u su\u1ea5t c\u1ee5 th\u1ec3. Truy c\u1eadp c\u00e1c t\u00e0i nguy\u00ean c\u1ee7a h\u1ecd \u0111\u1ec3 t\u00ecm hi\u1ec3u c\u00e1ch nam ch\u00e2m t\u00f9y ch\u1ec9nh c\u00f3 th\u1ec3 n\u00e2ng cao c\u00e1c d\u1ef1 \u00e1n k\u1ef9 thu\u1eadt v\u00e0 d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u v\u1ec1 l\u1ef1c t\u1eeb tr\u01b0\u1eddng v\u1edbi c\u00e1c \u0111\u1ecbnh ngh\u0129a r\u00f5 r\u00e0ng, c\u00f4ng th\u1ee9c v\u00e0 v\u00ed d\u1ee5 th\u1ef1c t\u1ebf gi\u1ea3i th\u00edch vai tr\u00f2 c\u1ee7a n\u00f3 trong v\u1eadt l\u00fd v\u00e0 c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"author":1,"featured_media":3223,"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-3231","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/what_is_a_magnetic_force_6hhbj5jq8.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3231","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=3231"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3231\/revisions"}],"predecessor-version":[{"id":3236,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3231\/revisions\/3236"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3223"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}