{"id":3998,"date":"2026-10-03T14:50:36","date_gmt":"2026-10-03T14:50:36","guid":{"rendered":"https:\/\/nbaem.com\/?p=3998"},"modified":"2026-10-03T14:50:36","modified_gmt":"2026-10-03T14:50:36","slug":"magnetic-field-lines","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/magnetic-field-lines\/","title":{"rendered":"\u0110\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng v\u1eadt t\u1eeb \u0111\u01b0\u1ee3c Gi\u1ea3i th\u00edch: Nguy\u00ean l\u00fd v\u00e0 \u1ee8ng d\u1ee5ng"},"content":{"rendered":"<h2>H\u00e0m l\u01b0\u1ee3ng t\u1eeb tr\u01b0\u1eddng t\u1eeb?<\/h2>\n<p><strong>C\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng t\u1eeb<\/strong>, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c \u0111\u01b0\u1eddng l\u1ef1c t\u1eeb, l\u00e0 c\u00e1c m\u00f4 h\u00ecnh tr\u1ef1c quan m\u00e0 ch\u00fang ta d\u00f9ng \u0111\u1ec3 \u0111\u1ea1i di\u1ec7n cho c\u00e1c l\u1ef1c v\u00f4 h\u00ecnh xung quanh m\u1ed9t nam ch\u00e2m. Trong khi t\u1eeb tr\u01b0\u1eddng kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng, c\u00e1c \u0111\u01b0\u1eddng n\u00e0y v\u1ebd l\u00ean qu\u1ef9 \u0111\u1ea1o v\u00e0 h\u00e0nh vi c\u1ee7a c\u00e1c vect\u01a1 t\u1eeb qua kh\u00f4ng gian.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>M\u00f4 t\u1ea3 tr\u1ef1c quan:<\/strong> Ch\u00fang th\u1ec3 hi\u1ec7n c\u00e1ch l\u1ef1c t\u1eeb lan truy\u1ec1n quanh c\u00e1c v\u1eadt t\u1eeb v\u00e0 c\u00e1c d\u00f2ng \u0111i\u1ec7n.<\/li>\n<li><strong>Ch\u1ec9 b\u00e1o vect\u01a1:<\/strong> \u0110\u1ed9 ti\u1ebfp tuy\u1ebfn t\u1ea1i b\u1ea5t k\u1ef3 \u0111i\u1ec3m n\u00e0o d\u1ecdc theo m\u1ed9t \u0111\u01b0\u1eddng cho th\u1ea5y \u0111\u00fang <strong>h\u01b0\u1edbng c\u1ee7a t\u1eeb tr\u01b0\u1eddng<\/strong> t\u1ea1i v\u1ecb tr\u00ed \u0111\u00f3.<\/li>\n<li><strong>Hi\u1ec3n th\u1ecb l\u1ef1c:<\/strong> C\u00e1c \u0111\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i ch\u1eb7t cho th\u1ea5y c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb m\u1ea1nh, trong khi c\u00e1c \u0111\u01b0\u1eddng ph\u00e2n t\u00e1n cho th\u1ea5y c\u00e1c v\u00f9ng y\u1ebfu h\u01a1n.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>L\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c tr\u01b0\u1eddng t\u1eeb v\u00f4 h\u00ecnh<\/h3>\n<p>B\u1edfi v\u00ec c\u00e1c tr\u01b0\u1eddng t\u1eeb t\u1ed3n t\u1ea1i li\u00ean t\u1ee5c \u1edf ba chi\u1ec1u, vi\u1ec7c l\u1eadp b\u1ea3n \u0111\u1ed3 ch\u00fang \u0111\u00f2i h\u1ecfi m\u1ed9t khu\u00f4n kh\u1ed5 r\u00f5 r\u00e0ng. Ch\u00fang ta s\u1eed d\u1ee5ng c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng t\u01b0\u1edfng t\u01b0\u1ee3ng \u0111\u1ec3 bi\u1ebfn ti\u1ec1m n\u0103ng t\u1eeb th\u00e0nh c\u00e1c m\u00f4 h\u00ecnh c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng v\u00e0 d\u1ef1 \u0111o\u00e1n.<\/p>\n<p>Khung l\u1eadp b\u1ea3n \u0111\u1ed3 n\u00e0y cung c\u1ea5p d\u1eef li\u1ec7u quan tr\u1ecdng cho k\u1ef9 thu\u1eadt \u1ee9ng d\u1ee5ng:<br \/>\n1. <strong>\u0110\u1ecbnh h\u01b0\u1edbng Tr\u01b0\u1eddng:<\/strong> Hi\u1ec3n th\u1ecb c\u00e1ch m\u1ed9t t\u1eeb tr\u01b0\u1eddng t\u1eeb ho\u1eb7c kim la b\u00e0n th\u1eed s\u1ebd c\u0103n ch\u1ec9nh.<br \/>\n2. <strong>Ph\u00e2n t\u00edch Gradient:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1ch c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng gi\u1ea3m theo kho\u1ea3ng c\u00e1ch.<br \/>\n3. <strong>Ph\u00e2n b\u1ed1 Flux:<\/strong> Gi\u00fap ch\u00fang ta thi\u1ebft k\u1ebf m\u1ea1ch t\u1eeb c\u00e2n b\u1eb1ng v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u01a1 hi\u1ec7u qu\u1ea3.<\/p>\n<h3>H\u01b0\u1edbng c\u1ee7a \u0110\u01b0\u1eddng Tr\u01b0\u1eddng: B\u00ean ngo\u00e0i so v\u1edbi B\u00ean trong<\/h3>\n<p>M\u1ed9t quy t\u1eafc n\u1ec1n t\u1ea3ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u00e0 c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng h\u00ecnh th\u00e0nh c\u00e1c v\u00f2ng li\u00ean t\u1ee5c, kh\u00f4ng th\u1ec3 ph\u00e1 v\u1ee1. H\u01b0\u1edbng c\u1ee7a ch\u00fang thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c b\u1ea1n quan s\u00e1t tr\u01b0\u1eddng b\u00ean ngo\u00e0i hay b\u00ean trong nam ch\u00e2m:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>B\u00ean ngo\u00e0i Nam ch\u00e2m:<\/strong> C\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb <strong>B\u1eafc<\/strong> v\u00e0 u\u1ed1n cong qua kh\u00f4ng gian xung quanh h\u01b0\u1edbng v\u1ec1 ph\u00eda <strong>C\u1ef1c Nam<\/strong>.<\/li>\n<li><strong>B\u00ean trong Nam ch\u00e2m:<\/strong> C\u00e1c \u0111\u01b0\u1eddng ti\u1ebfp t\u1ee5c \u0111i th\u1eb3ng xuy\u00ean qua v\u1eadt li\u1ec7u t\u1eeb, di chuy\u1ec3n t\u1eeb <strong>C\u1ef1c Nam<\/strong> tr\u1edf l\u1ea1i <strong>B\u1eafc<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>V\u00f2ng l\u1eb7p li\u1ec1n m\u1ea1ch n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1c c\u1ef1c t\u1eeb lu\u00f4n ho\u1ea1t \u0111\u1ed9ng theo c\u1eb7p, t\u1ea1o th\u00e0nh d\u00f2ng l\u01b0u t\u1eeb tr\u01b0\u1eddng k\u00edn.<\/p>\n<h2>C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh c\u1ee7a \u0111\u01b0\u1eddng s\u1ee9c t\u1eeb<\/h2>\n<p>\u0110\u1ec3 ph\u00e2n t\u00edch \u0111\u00fang c\u00e1c m\u1ea1ch t\u1eeb v\u00e0 b\u1ed9 gh\u00e9p m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd, ch\u00fang ta d\u1ef1a v\u00e0o c\u00e1c quy t\u1eafc h\u00ecnh h\u1ecdc l\u00f5i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1ch th\u1ee9c <strong>\u0111\u01b0\u1eddng s\u1ee9c t\u1eeb<\/strong> c\u01b0 x\u1eed trong kh\u00f4ng gian<\/p>\n<h3>V\u00f2ng k\u00edn li\u00ean t\u1ee5c<\/h3>\n<p>C\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng t\u1eeb lu\u00f4n kh\u00f4ng b\u1eaft \u0111\u1ea7u ho\u1eb7c k\u1ebft th\u00fac \u0111\u1ed9t ng\u1ed9t. Thay v\u00e0o \u0111\u00f3, ch\u00fang h\u00ecnh th\u00e0nh c\u00e1c v\u00f2ng li\u00ean t\u1ee5c, kh\u00f4ng b\u1ecb \u0111\u1ee9t qu\u00e3ng:<br \/>\n<strong>Ngo\u00e0i nam ch\u00e2m:<\/strong> C\u00e1c \u0111\u01b0\u1eddng line xu\u1ea5t ph\u00e1t t\u1eeb c\u1ef1c b\u1eafc v\u00e0 di chuy\u1ec3n v\u1ec1 ph\u00eda c\u1ef1c nam.<br \/>\n<strong>B\u00ean trong nam ch\u00e2m:<\/strong> C\u00e1c \u0111\u01b0\u1eddng n\u1ed1i chu tr\u00ecnh b\u1eb1ng c\u00e1ch n\u1ed1i t\u1eeb c\u1ef1c nam tr\u1edf l\u1ea1i c\u1ef1c b\u1eafc.<\/p>\n<p>Hi\u1ec3u h\u00e0nh vi v\u00f2ng l\u1eb7p n\u00e0y l\u00e0 c\u01a1 b\u1ea3n khi l\u00e0m vi\u1ec7c v\u1edbi chu\u1ea9n <a href=\"https:\/\/nbaem.com\/vi\/bar-magnet-magnetic-field\/\">\u0111i\u1ec3m t\u1eeb tr\u01b0\u1eddng que ba<\/a> ph\u00e2n ph\u1ed1i<\/p>\n<h3>\u0110\u01b0\u1eddng tr\u01b0\u1eddng xuy\u00ean kh\u00f4ng giao nhau<\/h3>\n<p>C\u00e1c \u0111\u01b0\u1eddng l\u1ef1c kh\u00f4ng th\u1ec3 giao nhau ho\u1eb7c ch\u1ed3ng l\u00ean nhau d\u01b0\u1edbi b\u1ea5t k\u1ef3 \u0111i\u1ec1u ki\u1ec7n n\u00e0o. T\u1ea1i m\u1ecdi \u0111i\u1ec3m cho tr\u01b0\u1edbc trong t\u1eeb tr\u01b0\u1eddng, h\u01b0\u1edbng c\u1ee7a tr\u01b0\u1eddng l\u00e0 duy nh\u1ea5t. N\u1ebfu hai \u0111\u01b0\u1eddng b\u1ecb c\u1eaft nhau, m\u1ed9t la b\u00e0n \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1i giao \u0111i\u1ec3m \u0111\u00f3 s\u1ebd ph\u1ea3i ch\u1ec9 h\u01b0\u1edbng v\u1ec1 hai chi\u1ec1u c\u00f9ng l\u00fac, \u0111i\u1ec1u n\u00e0y l\u00e0 v\u00f4 l\u00fd v\u1ec1 m\u1eb7t v\u1eadt l\u00fd.<\/p>\n<h3>M\u1eadt \u0111\u1ed9 \u0111\u01b0\u1eddng tr\u01b0\u1eddng \u0111o l\u01b0\u1eddng c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng<\/h3>\n<p>Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng cho m\u1ed9t ph\u00e9p \u0111o tr\u1ef1c quan ngay l\u1eadp t\u1ee9c c\u1ee7a <strong>\u0111\u1ed9 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/strong> (n\u1ed3ng \u0111\u1ed9 flux t\u1eeb tr\u01b0\u1eddng):<br \/>\n<strong>M\u1eadt \u0111\u1ed9 cao (nhi\u1ec1u \u0111\u01b0\u1eddng):<\/strong> Cho th\u1ea5y tr\u01b0\u1eddng t\u1eeb m\u1ea1nh, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y tr\u1ef1c ti\u1ebfp t\u1ea1i c\u00e1c m\u1eb7t c\u1ef1c.<br \/>\n<strong>M\u1eadt \u0111\u1ed9 th\u1ea5p (c\u00e1c \u0111\u01b0\u1eddng c\u00e1ch \u0111\u1ec1u):<\/strong> Cho th\u1ea5y tr\u01b0\u1eddng y\u1ebfu h\u01a1n khi c\u00e0ng xa ngu\u1ed3n.<\/p>\n<p>C\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u01b0 m\u1ed9t <a href=\"https:\/\/nbaem.com\/vi\/multipole-magnetic-ring\/\">\u0111i\u1ec3m t\u1eeb t\u00ednh v\u00f2ng \u0111a c\u1ef1c<\/a> s\u1eed d\u1ee5ng kho\u1ea3ng c\u00e1ch c\u1ef1c ri\u00eang bi\u1ec7t \u0111\u1ec3 t\u1eadp trung m\u1eadt \u0111\u1ed9 \u0111\u01b0\u1eddng tr\u01b0\u1eddng s\u00e1t v\u00e0o c\u00e1c b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c.<\/p>\n<h3>M\u1eabu tr\u01b0\u1eddng \u0111\u1ed3ng nh\u1ea5t vs. phi \u0111\u1ed3ng nh\u1ea5t<\/h3>\n<p>C\u1ea5u h\u00ecnh tr\u01b0\u1eddng n\u00f3i chung r\u01a1i v\u00e0o hai lo\u1ea1i r\u00f5 r\u1ec7t:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Tr\u01b0\u1eddng t\u1eeb \u0111\u1ed3ng nh\u1ea5t:<\/strong> C\u00e1c \u0111\u01b0\u1eddng th\u1eb3ng, song song v\u00e0 \u0111\u1ec1u nhau. C\u01b0\u1eddng \u0111\u1ed9 v\u00e0 h\u01b0\u1edbng tr\u01b0\u1eddng gi\u1eef nguy\u00ean trong to\u00e0n khu v\u1ef1c, nh\u01b0 gi\u1eefa hai c\u1ef1c ph\u1eb3ng \u0111\u1ed1i nhau g\u1ea7n nhau.<\/li>\n<li><strong>Tr\u01b0\u1eddng t\u1eeb phi \u0111\u1ed3ng nh\u1ea5t:<\/strong> C\u00e1c \u0111\u01b0\u1eddng n\u00e9t u\u1ed1n cong, h\u1ed9i t\u1ee5 ho\u1eb7c t\u1ecfa ra. C\u01b0\u1eddng \u0111\u1ed9 v\u00e0 h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng thay \u0111\u1ed5i li\u00ean t\u1ee5c t\u00f9y v\u1ecb tr\u00ed, \u0111\u00e2y l\u00e0 h\u00e0nh vi \u0111i\u1ec3n h\u00ecnh \u0111\u01b0\u1ee3c nh\u00ecn th\u1ea5y quanh c\u1ea5u h\u00ecnh nam ch\u00e2m \u0111\u01a1n m\u1edf.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>C\u00e1ch tr\u1ef1c quan h\u00f3a v\u00e0 theo d\u1ea5u c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng<\/h2>\n<p>V\u00ec l\u1ef1c t\u1eeb kh\u00f4ng nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng, ch\u00fang ta d\u1ef1a v\u00e0o c\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c quan th\u1ef1c t\u1ebf v\u00e0 c\u00e1c th\u00ed nghi\u1ec7m \u0111\u1ec3 l\u1eadp b\u1ea3n \u0111\u1ed3 \u0111\u01b0\u1eddng \u0111i c\u1ee7a ch\u00fang. D\u00f9 b\u1ea1n \u0111ang th\u1ef1c hi\u1ec7n m\u1ed9t th\u00ed nghi\u1ec7m thuy\u1ebft tr\u00ecnh trong l\u1edbp hay ki\u1ec3m tra m\u1ed9t m\u1eabu trong ph\u00f2ng th\u00ed nghi\u1ec7m, vi\u1ec7c l\u1ea7n theo nh\u1eefng \u0111\u01b0\u1eddng \u0111i v\u00f4 h\u00ecnh n\u00e0y cho ch\u00fang ta c\u00e1i nh\u00ecn ngay l\u1eadp t\u1ee9c v\u1ec1 c\u01b0\u1eddng t\u1eeb, ph\u00e2n b\u1ed1 l\u01b0u l\u01b0\u1ee3ng v\u00e0 c\u1ef1c t\u1eeb.<\/p>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p H\u1ea1t s\u1eaft c\u1ed5 \u0111i\u1ec3n \u2013 t\u1eebng b\u01b0\u1edbc<\/h3>\n<p>c\u1ea3 <strong>cu\u1ed9c th\u00ed nghi\u1ec7m b\u1ee5i s\u1eaft<\/strong> v\u1eabn l\u00e0 c\u00e1ch tr\u1ef1c quan nh\u1ea5t \u0111\u1ec3 ti\u1ebft l\u1ed9 m\u1ed9t <strong>l\u01b0u \u0111\u1ed3 tr\u01b0\u1eddng t\u1eeb<\/strong> trong th\u1eddi gian th\u1ef1c. B\u1ee5i s\u1eaft \u0111\u00f3ng vai tr\u00f2 nh\u01b0 c\u00e1c ph\u00e2n c\u1ef1c t\u1eeb nh\u1ecf, c\u0103n ch\u1ec9nh v\u1eadt l\u00fd theo <strong>c\u00e1c \u0111\u01b0\u1eddng l\u1ef1c t\u1eeb<\/strong>.<\/p>\n<p>\u0110\u00e2y l\u00e0 c\u00e1ch ch\u00fang ta thi\u1ebft l\u1eadp n\u00f3:<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>\u0110\u1eb7t nam ch\u00e2m:<\/strong> \u0110\u1eb7t nam ch\u00e2m n\u1eb1m ph\u1eb3ng tr\u00ean b\u1ec1 m\u1eb7t s\u1ea1ch v\u00e0 b\u1eb1ng ph\u1eb3ng.<\/li>\n<li><strong>Th\u00eam m\u1ed9t r\u00e0o ch\u1eafn:<\/strong> \u0110\u1eb7t m\u1ed9t t\u1edd gi\u1ea5y tr\u1eafng, acrylic trong su\u1ed1t ho\u1eb7c b\u00eca c\u1ee9ng ngay tr\u00ean nam ch\u00e2m.<\/li>\n<li><strong>R\u1ea3i b\u1ee5i s\u1eaft:<\/strong> R\u1ea3i b\u1ee5i s\u1eaft m\u1ecbn m\u1ed9t c\u00e1ch nh\u1eb9 nh\u00e0ng v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean t\u1edd gi\u1ea5y t\u1eeb m\u1ed9t \u0111\u1ed9 cao ng\u1eafn.<\/li>\n<li><strong>G\u00f5 l\u00ean b\u1ec1 m\u1eb7t:<\/strong> G\u00f5 nh\u1eb9 v\u00e0o m\u00e9p t\u1edd gi\u1ea5y. S\u1ef1 rung \u0111\u1ed9ng v\u01b0\u1ee3t qua ma s\u00e1t b\u1ec1 m\u1eb7t, cho ph\u00e9p b\u1ee5i s\u1eaft c\u0103n ch\u1ec9nh m\u1ed9t c\u00e1ch tr\u01a1n tru d\u1ecdc theo c\u00e1c \u0111\u01b0\u1eddng cong c\u1ee7a tr\u01b0\u1eddng.<\/li>\n<li><strong>Quan s\u00e1t quy lu\u1eadt:<\/strong> Nh\u00ecn v\u00e0o m\u1eadt \u0111\u1ed9 b\u1ee5i s\u1eaft t\u0103ng \u0111\u1ed9t bi\u1ebfn g\u1ea7n c\u00e1c c\u1ef1c, cho th\u1ea5y r\u00f5 n\u01a1i tr\u01b0\u1eddng t\u1eeb h\u1ecdc \u0111\u01b0\u1ee3c t\u1eadp trung.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>S\u1eed d\u1ee5ng Compass v\u1ebd \u0111\u1ed3 th\u1ecb h\u01b0\u1edbng tr\u01b0\u1eddng<\/h3>\n<p>Trong khi c\u00e1c h\u1ea1t s\u1eaft cho th\u1ea5y h\u00ecnh d\u1ea1ng v\u00e0 m\u1eadt \u0111\u1ed9, ch\u00fang kh\u00f4ng cho th\u1ea5y h\u01b0\u1edbng c\u1ef1c. M\u1ed9t chi\u1ebfc la b\u00e0n v\u1ebd \u0111\u1ed3 th\u1ecb nh\u1ecf cho ph\u00e9p ch\u00fang ta theo d\u00f5i \u0111\u01b0\u1eddng v\u00e9c-t\u01a1 th\u1ef1c t\u1ebf t\u1eeb c\u1ef1c b\u1eafc \u0111\u1ebfn c\u1ef1c nam.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>\u0110\u1eb7t nam ch\u00e2m tr\u00ean m\u1ed9t t\u1edd gi\u1ea5y k\u1ebb \u00f4 v\u00e0 v\u1ebd l\u1ea1i h\u00ecnh d\u1ea1ng c\u1ee7a n\u00f3.<\/li>\n<li>\u0110\u1eb7t la b\u00e0n g\u1ea7n c\u1ef1c b\u1eafc c\u1ee7a nam ch\u00e2m v\u00e0 \u0111\u00e1nh d\u1ea5u c\u00e1c \u0111i\u1ec3m n\u01a1i kim ch\u1ec9 v\u1ec1.<\/li>\n<li>D\u1ecb chuy\u1ec3n la b\u00e0n sao cho \u0111u\u00f4i c\u1ee7a n\u00f3 c\u0103n v\u1edbi \u0111i\u1ec3m tr\u01b0\u1edbc \u0111\u00f3, \u0111\u00e1nh d\u1ea5u v\u1ecb tr\u00ed \u0111\u1ea7u m\u00fat m\u1edbi, v\u00e0 l\u1eb7p l\u1ea1i.<\/li>\n<li>N\u1ed1i c\u00e1c \u0111i\u1ec3m l\u1ea1i \u0111\u1ec3 v\u1ebd m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n m\u1ea1ch, tr\u01a1n tru cho th\u1ea5y \u0111\u00fang <strong>h\u01b0\u1edbng c\u1ee7a t\u1eeb tr\u01b0\u1eddng<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>C\u1ea3m bi\u1ebfn tr\u01b0\u1eddng k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 phim xem t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb<\/h3>\n<p>\u0110\u1ed1i v\u1edbi thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt, ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 th\u1eed nghi\u1ec7m ti\u00ean ti\u1ebfn, c\u00e1c c\u00f4ng c\u1ee5 ch\u1ea9n \u0111o\u00e1n hi\u1ec7n \u0111\u1ea1i cung c\u1ea5p h\u00ecnh \u1ea3nh s\u1ea1ch h\u01a1n, kh\u00f4ng ph\u00e1 h\u1ea1i:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Phim xem t\u1eeb \u0111i\u1ec7n t\u1eeb:<\/strong> T\u1ea5m linh ho\u1ea1t n\u00e0y ch\u1ee9a c\u00e1c vi\u1ec1n nickel si\u00eau nh\u1ecf \u0111\u01b0\u1ee3c treo trong d\u1ea7u. \u0110\u1eb7t phim l\u00ean tr\u00ean m\u1ed9t t\u1ed5 h\u1ee3p t\u1eeb tr\u01b0\u1eddng s\u1ebd ti\u1ebft l\u1ed9 ranh gi\u1edbi c\u1ef1c, m\u00f4 h\u00ecnh \u0111a c\u1ef1c v\u00e0 th\u1ea5t tho\u00e1t flux ch\u1ec9 sau v\u00e0i gi\u00e2y m\u00e0 kh\u00f4ng c\u1ea7n l\u00e0m s\u1ea1ch l\u1ed9n x\u1ed9n.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn Hall Effect k\u1ef9 thu\u1eadt s\u1ed1:<\/strong> M\u00e1y \u0111o Gauss \u0111i\u1ec7n t\u1eed v\u00e0 c\u1ea3m bi\u1ebfn s\u1ed1 \u0111o l\u01b0u l\u01b0\u1ee3ng t\u1eeb t\u1eeb ch\u00ednh x\u00e1c t\u1ea1i c\u00e1c t\u1ecda \u0111\u1ed9 c\u1ee5 th\u1ec3, bi\u1ebfn \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng th\u00e0nh d\u1eef li\u1ec7u 2D ho\u1eb7c 3D \u0111\u1ecbnh l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Hi\u1ec3u c\u00e1ch c\u00e1c \u0111\u01b0\u1eddng flux n\u00e0y alignment l\u00e0 r\u1ea5t quan tr\u1ecdng khi thi\u1ebft k\u1ebf h\u1ec7 truy\u1ec1n \u0111\u1ed9ng m\u00f4-men xo\u1eafn cao, v\u00ed d\u1ee5 nh\u01b0 xem <a href=\"https:\/\/nbaem.com\/vi\/what-is-mining-magnetic-coupling-and-how-it-works\/\">mining magnetic coupling l\u00e0 g\u00ec v\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng<\/a> th\u00f4ng qua c\u0103n ch\u1ec9nh t\u1eeb t\u00ednh kh\u00f4ng ti\u1ebfp x\u00fac trong m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p.<\/p>\n<h2>C\u00e1c m\u1eabu \u0110\u01b0\u1eddng l\u1ef1c t\u1eeb tr\u01b0\u1eddng \u1edf c\u00e1c thi\u1ebft l\u1eadp kh\u00e1c nhau<\/h2>\n<p>M\u1eabu \u0111\u01b0\u1eddng l\u1ef1c t\u1eeb tr\u01b0\u1eddng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 t\u00f9y thu\u1ed9c v\u00e0o ngu\u1ed3n, h\u00ecnh h\u1ecdc v\u00e0 \u0111\u1ed9 g\u1ea7n c\u1ee7a c\u00e1c v\u1eadt t\u1eeb t\u00ednh kh\u00e1c. Khi ch\u00fang ta l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c c\u1ea5u h\u00ecnh n\u00e0y, ch\u00fang ta th\u1ea5y ph\u00e2n b\u1ed1 \u0111\u01b0\u1eddng r\u1ea5t kh\u00e1c nhau chi ph\u1ed1i c\u00e1ch c\u00e1c l\u1ef1c t\u00e1c \u0111\u1ed9ng trong c\u00e1c h\u1ec7 th\u1ed1ng th\u1ef1c t\u1ebf.<\/p>\n<h3>Nam ch\u00e2m thanh ngang \u0111\u01a1n v\u00e0 Nam ch\u00e2m t\u01b0\u01a1ng t\u00e1c<\/h3>\n<p>M\u1ed9t nam ch\u00e2m thanh ngang \u0111\u01a1n t\u1ea1o ra tr\u01b0\u1eddng dipole kh\u00f4ng ph\u1ee9c t\u1ea1p, n\u01a1i c\u00e1c \u0111\u01b0\u1eddng tho\u00e1t kh\u1ecfi c\u1ef1c b\u1eafc, u\u1ed1n cong ra th\u00e0nh c\u00e1c v\u00f2ng cong hai b\u00ean \u0111\u1ed1i x\u1ee9ng v\u00e0 \u0111i v\u00e0o c\u1ef1c nam. Vi\u1ec7c b\u1ed5 sung nam ch\u00e2m th\u1ee9 hai l\u00e0m thay \u0111\u1ed5i ngay b\u1ed1i c\u1ea3nh n\u00e0y:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>C\u00e1c c\u1ef1c \u0111\u1ed1i nhau h\u00fat (B\u1eafc\u2013Nam):<\/strong> C\u00e1c \u0111\u01b0\u1eddng l\u1ef1c xu\u1ea5t ph\u00e1t t\u1eeb c\u1ef1c b\u1eafc c\u1ee7a m\u1ed9t nam ch\u00e2m v\u00e0 k\u1ebft n\u1ed1i th\u1eb3ng sang c\u1ef1c nam c\u1ee7a nam ch\u00e2m kia, t\u1ea1o n\u00ean m\u1ed9t c\u1ea7u t\u1eeb tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao v\u00e0 c\u0103ng th\u1eb3ng cao k\u00e9o ch\u00fang l\u1ea1i v\u1edbi nhau.<\/li>\n<li><strong>C\u00e1c c\u1ef1c gi\u1ed1ng nhau \u0111\u1ea9y nhau (B\u1eafc\u2013B\u1eafc ho\u1eb7c Nam\u2013Nam):<\/strong> C\u00e1c \u0111\u01b0\u1eddng l\u1ef1c l\u1ec7ch kh\u1ecfi nhau m\u1ed9t c\u00e1ch m\u1ea1nh m\u1ebd v\u00e0o kh\u00f4ng gian xung quanh. Ch\u00fang kh\u00f4ng bao gi\u1edd giao nhau, t\u1ea1o ra m\u1ed9t khu v\u1ef1c ch\u1ebft trung t\u00e2m ho\u1eb7c \u0111i\u1ec3m trung t\u00ednh n\u01a1i t\u1ed5ng l\u1ef1c t\u1eeb b\u1eb1ng kh\u00f4ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c v\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao\u2014nh\u01b0 khi ph\u00e2n t\u00edch <a href=\"https:\/\/nbaem.com\/vi\/what-is-the-difference-between-n52-and-n55-magnets\/\">s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa nam ch\u00e2m N52 v\u00e0 N55 l\u00e0 g\u00ec<\/a>\u2014h\u00ecnh h\u1ecdc v\u1eadt l\u00fd v\u1eabn gi\u1ed1ng nhau, nh\u01b0ng m\u1eadt \u0111\u1ed9 \u0111\u01b0\u1eddng l\u1ef1c v\u00e0 s\u1ee9c gi\u1eef t\u1eadp trung t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3.<\/p>\n<h3>Tr\u01b0\u1eddng t\u1eeb t\u00ednh \u0111\u1ecba t\u1eeb v\u00e0 ph\u01b0\u01a1ng h\u01b0\u1edbng c\u1ef1c \u0111\u1ea5t<\/h3>\n<p>H\u00e0nh tinh c\u1ee7a ch\u00fang ta ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t nam ch\u00e2m v\u0129 m\u00f4 nghi\u00eang kh\u1ed5ng l\u1ed3. S\u1ef1 lu\u00e2n chuy\u1ec3n c\u1ee7a s\u1eaft n\u00f3ng ch\u1ea3y trong l\u00f5i ngo\u00e0i c\u1ee7a Tr\u00e1i \u0110\u1ea5t t\u1ea1o ra m\u1ed9t magnetosphere r\u1ed9ng l\u1edbn:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Tr\u00e1i \u0110\u1ea5t\u2019s <strong>B\u1ea1n c\u1ef1c \u0111\u1ecba l\u00fd<\/strong> th\u1eadt s\u1ef1 c\u00f3 m\u1ed9t <strong>\u0111\u1ecba c\u1ef1c nam t\u1eeb<\/strong>, v\u00ec v\u1eady kim ch\u1ec9 nam c\u00f3 ngu\u1ed3n g\u1ed1c b\u1eafc c\u1ee7a kim l\u1ea1i ch\u1ec9 v\u1ec1 ph\u00eda b\u1eafc.<\/li>\n<li>C\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb b\u00e1n c\u1ea7u nam, v\u00f2ng ra ngo\u00e0i kh\u00f4ng gian v\u00e0 \u0111i tr\u1edf l\u1ea1i g\u1ea7n v\u00f9ng polar ph\u00eda b\u1eafc.<\/li>\n<li>\u1ede x\u00edch \u0111\u1ea1o, c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng c\u1ee7a Tr\u00e1i \u0110\u1ea5t ch\u1ea1y g\u1ea7n song song v\u1edbi b\u1ec1 m\u1eb7t; \u1edf c\u1ef1c, ch\u00fang th\u00f2 th\u1eb3ng xu\u1ed1ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>D\u00e2y d\u1eabn th\u1eb3ng mang d\u00f2ng \u0111i\u1ec7n v\u00e0 Quy t\u1eafc grip b\u1eb1ng tay ph\u1ea3i<\/h3>\n<p>D\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua m\u1ed9t d\u1eabn th\u1eb3ng t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng v\u00f2ng quanh d\u00e2y d\u1eabn ch\u1ee9 kh\u00f4ng ph\u1ea3i v\u00f2ng v\u00f2ng c\u1ef1c \u0111\u1ebfn c\u1ef1c:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>M\u1eabu tr\u01b0\u1eddng:<\/strong> C\u00e1c v\u00f2ng \u0111\u1ed3ng t\u00e2m t\u1ea1o th\u00e0nh c\u00e1c \u0111\u01b0\u1eddng tr\u00f2n li\u1ec1n m\u1ea1ch t\u1eadp trung \u1edf d\u00e2y d\u1eabn.<\/li>\n<li><strong>Quy t\u1eafc grip b\u1eb1ng tay ph\u1ea3i:<\/strong> Ch\u1ec9 ng\u00f3n c\u00e1i tay ph\u1ea3i c\u1ee7a b\u1ea1n theo h\u01b0\u1edbng d\u00f2ng \u0111i\u1ec7n, v\u00e0 ng\u00f3n tay cu\u1ed9n c\u1ee7a b\u1ea1n cho bi\u1ebft ch\u00ednh x\u00e1c h\u01b0\u1edbng c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng v\u00f2ng quanh.<\/li>\n<li><strong>C\u01b0\u1eddng \u0111\u1ed9:<\/strong> C\u00e1c v\u00f2ng \u0111\u01b0\u1ee3c x\u1ebfp ch\u1eb7t g\u1ea7n b\u1ec1 m\u1eb7t d\u1eabn v\u00e0 m\u1edf r\u1ed9ng ra khi kho\u1ea3ng c\u00e1ch t\u0103ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Cu\u1ed9n v\u00e0 Ph\u00e2n b\u1ed1 Tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb<\/h3>\n<p>Cu\u1ed9n d\u00e2y th\u00e0nh m\u1ed9t cu\u1ed9n k\u00edn (solenoid) k\u1ebft h\u1ee3p c\u00e1c v\u00f2ng tr\u01b0\u1eddng tr\u00f2n c\u1ee7a c\u00e1c l\u01b0\u1ee3t cu\u1ed9n ri\u00eang l\u1ebb th\u00e0nh m\u1ed9t m\u1eabu tr\u01b0\u1eddng t\u1eeb th\u1ed1ng nh\u1ea5t g\u1ea7n nh\u01b0 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi m\u1ed9t nam ch\u00e2m th\u1eb3ng:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>B\u00ean trong Cu\u1ed9n:<\/strong> C\u00e1c \u0111\u01b0\u1eddng d\u00f2ng song song, c\u1ef1c k\u1ef3 th\u1eb3ng v\u00e0 ch\u1eadt k\u00edn, t\u1ea1o ra tr\u01b0\u1eddng magnetic \u0111\u1ed3ng nh\u1ea5t c\u1ef1c k\u1ef3 \u0111\u1ec1u \u0111\u1eb7n.<\/li>\n<li><strong>B\u00ean ngo\u00e0i Cu\u1ed9n c\u1ea3m:<\/strong> C\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng t\u1eeb t\u1eeb m\u1edf r\u1ed9ng th\u00e0nh c\u00e1c v\u00f2ng r\u1ed9ng t\u1eeb m\u1ed9t \u0111\u1ea7u cu\u1ed9n \u0111\u1ebfn \u0111\u1ea7u kia, t\u1ea1o ra c\u1ef1c b\u1eafc v\u00e0 c\u1ef1c nam c\u1ee7a t\u1eeb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ecbnh r\u00f5.<\/li>\n<li><strong>T\u0103ng l\u00f5i Nam ch\u00e2m \u0111i\u1ec7n:<\/strong> B\u00ean trong solenoid ch\u00e8n m\u1ed9t l\u00f5i s\u1eaft ferromagnetic l\u00e0m t\u1eadp trung c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng, nh\u00e2n \u0111\u00f4i m\u1eadt \u0111\u1ed9Flux t\u1eeb t\u1ed5ng th\u1ec3 m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i h\u00ecnh h\u1ecdc tr\u01b0\u1eddng c\u01a1 b\u1ea3n.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>So s\u00e1nh M\u1eabu h\u00ecnh T\u1eeb tr\u01b0\u1eddng<\/h3>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Thi\u1ebft l\u1eadp<\/th>\n<th style=\"text-align: left;\">H\u00ecnh h\u1ecdc \u0110\u01b0\u1eddng t\u1eeb<\/th>\n<th style=\"text-align: left;\">V\u1ecb tr\u00ed \u0110\u1ec9nh 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>Nam ch\u00e2m M\u1ed9t thanh<\/strong><\/td>\n<td style=\"text-align: left;\">V\u00f2ng l\u1eb7p \u0111\u1ed1i x\u1ee9ng, B\u1eafc \u0111\u1ebfn Nam<\/td>\n<td style=\"text-align: left;\">Khu\u00f4n m\u1eb7t c\u1ef1c t\u1eeb<\/td>\n<td style=\"text-align: left;\">Khe m\u00f3c, kim \u0111\u1ed3ng h\u1ed3 \u0111\u1ecbnh h\u01b0\u1edbng, c\u1ea3m bi\u1ebfn<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Nam ch\u00e2m h\u00fat<\/strong><\/td>\n<td style=\"text-align: left;\">N\u1ed1i th\u1eb3ng c\u00e1c \u0111\u01b0\u1eddng gi\u1eefa hai c\u1ef1c<\/td>\n<td style=\"text-align: left;\">Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c m\u1eb7t \u0111\u1ed1i di\u1ec7n<\/td>\n<td style=\"text-align: left;\">B\u1ed9 k\u1eb9p, truy\u1ec1n \u0111\u1ed9ng gh\u00e9p n\u1ed1i<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Nam ch\u00e2m \u0111\u1ea9y nhau<\/strong><\/td>\n<td style=\"text-align: left;\">C\u00e1c \u0111\u01b0\u1eddng song song b\u1ecb \u0111\u1ea9y ra ngo\u00e0i<\/td>\n<td style=\"text-align: left;\">Ranh gi\u1edbi ngo\u00e0i xa kho\u1ea3ng tr\u1ed1ng<\/td>\n<td style=\"text-align: left;\">H\u1ec7 th\u1ed1ng t\u1eeb ph\u1ea3n l\u1ef1c, bearing t\u1eeb tr\u01b0\u1eddng<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>D\u00e2y d\u1eabn th\u1eb3ng<\/strong><\/td>\n<td style=\"text-align: left;\">V\u00f2ng tr\u00f2n \u0111\u1ed3ng t\u00e2m quanh d\u00e2y<\/td>\n<td style=\"text-align: left;\">B\u1ec1 m\u1eb7t d\u00e2y<\/td>\n<td style=\"text-align: left;\">C\u00e1p t\u00edn hi\u1ec7u, d\u00e2y d\u1eabn ngu\u1ed3n c\u01a1 b\u1ea3n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Solenoid \/ T\u1eeb tr\u01b0\u1eddng \u0111i\u1ec7n<\/strong><\/td>\n<td style=\"text-align: left;\">C\u00e1c \u0111\u01b0\u1eddng song song \u1edf b\u00ean trong, v\u00f2ng l\u1eb7p b\u00ean ngo\u00e0i<\/td>\n<td style=\"text-align: left;\">B\u00ean trong l\u00f5i cu\u1ed9n<\/td>\n<td style=\"text-align: left;\">R\u01a1 le, b\u1ed9 truy\u1ec1n \u0111\u1ed9ng, m\u00e1y qu\u00e9t MRI<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng b\u1eadt t\u1eeb tr\u01b0\u1eddng<\/h2>\n<p>Hi\u1ec3u c\u00e1ch <strong>\u0111\u01b0\u1eddng s\u1ee9c t\u1eeb<\/strong> c\u00e1ch ch\u00fang h\u00e0nh x\u1eed cho ph\u00e9p ch\u00fang ta thi\u1ebft k\u1ebf v\u00e0 t\u1ed1i \u01b0u c\u00e1c c\u00f4ng ngh\u1ec7 quan tr\u1ecdng \u1edf m\u1ecdi \u0111i\u1ec7n t\u1eed h\u00e0ng ng\u00e0y v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p n\u1eb7ng. B\u1eb1ng c\u00e1ch ki\u1ec3m so\u00e1t \u0111\u01b0\u1eddng \u0111i v\u00e0 m\u1eadt \u0111\u1ed9 c\u1ee7a nh\u1eefng \u0111\u01b0\u1eddng l\u1ef1c v\u00f4 h\u00ecnh n\u00e0y, ch\u00fang ta chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng, b\u1ea3o v\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m v\u00e0 ghi nh\u1eadn d\u1eef li\u1ec7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n<h3>C\u00e1ch \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n v\u00e0 m\u00e1y ph\u00e1t h\u01b0\u1edfng l\u1ef1c tr\u01b0\u1eddng<\/h3>\n<p>\u0110\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t d\u1ef1a tr\u1ef1c ti\u1ebfp v\u00e0o t\u01b0\u01a1ng t\u00e1c gi\u1eefa t\u1eeb tr\u01b0\u1eddng v\u00e0 c\u00e1c ch\u1ea5t d\u1eabn \u0111i\u1ec7n.<br \/>\n<strong>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n:<\/strong> Khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua c\u00e1c cu\u1ed9n d\u00e2y \u0111\u1eb7t trong m\u1ed9t tr\u01b0\u1eddng t\u1eeb <strong>\u0111\u01b0\u1eddng s\u1ee9c t\u1eeb<\/strong> t\u01b0\u01a1ng t\u00e1c t\u1ea1o ra m\u1ed9t l\u1ef1c c\u01a1 h\u1ecdc (l\u1ef1c Lorentz) khi\u1ebfn roto quay.<br \/>\n<strong>M\u00e1y ph\u00e1t \u0111i\u1ec7n:<\/strong> Di chuy\u1ec3n m\u1ed9t ch\u1ea5t d\u1eabn qua m\u1ed9t cu\u1ed9n d\u1eabn t\u1eadp trung trong tr\u01b0\u1eddng t\u1eeb <strong>gi\u00e1 tr\u1ecb m\u1eadt \u0111\u1ed9 flux t\u1eeb<\/strong> c\u1eaft qua c\u00e1c \u0111\u01b0\u1eddng l\u1ef1c, g\u00e2y c\u1ea3m \u1ee9ng m\u1ed9t d\u00f2ng \u0111i\u1ec7n th\u00f4ng qua c\u1ea3m \u1ee9ng t\u1eeb.<br \/>\n<strong>Nh\u1eefng c\u1ea3i ti\u1ebfn hi\u1ec7u qu\u1ea3:<\/strong> \u0110\u1ecbnh h\u00ecnh c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng b\u1eb1ng v\u1eadt li\u1ec7u l\u00f5i c\u00f3 \u0111\u1ed9 t\u1eeb th\u1ea5m cao ng\u0103n ch\u1eb7n r\u00f2 r\u1ec9 flux, t\u1ed1i \u0111a h\u00f3a m\u00f4-men quay v\u00e0 c\u00f4ng su\u1ea5t v\u1eadn h\u00e0nh.<\/p>\n<h3>Quang kh\u00fang t\u1eeb h\u1ecdc t\u1eeb MRI v\u00e0 chu\u1ea9n \u0111o\u00e1n y t\u1ebf<\/h3>\n<p>Trong ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe, ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c c\u00e1c \u0111\u01b0\u1eddng t\u1eeb l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho h\u00ecnh \u1ea3nh phi x\u00e2m l\u1ea5n. M\u00e1y qu\u00e9t MRI tr\u01b0\u1eddng cao s\u1eed d\u1ee5ng nam ch\u00e2m si\u00eau d\u1eabn m\u1ea1nh \u0111\u1ec3 c\u0103n ch\u1ec9nh c\u00e1c h\u1ea1t nh\u00e2n hydro trong c\u01a1 th\u1ec3 ng\u01b0\u1eddi theo c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng \u0111\u1ed3ng nh\u1ea5t. Cu\u1ed9n gradient chuy\u00ean d\u1ee5ng t\u1ea1m th\u1eddi thay \u0111\u1ed5i c\u1ee5c b\u1ed9 <strong>\u0111\u1ed9 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/strong> \u0111\u1ec3 t\u1ea1o h\u00ecnh \u1ea3nh c\u1eaft 2D v\u00e0 3D chi ti\u1ebft c\u1ee7a m\u00f4 m\u1ec1m. B\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 th\u00eam v\u1ec1 c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y trong h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/nbaem.com\/vi\/medical-field-magnet-applications\/\">\u1ee9ng d\u1ee5ng nam ch\u00e2m l\u0129nh v\u1ef1c y t\u1ebf<\/a>.<\/p>\n<h3>H\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u01b0\u1edbng v\u00e0 Hi\u1ec7u chu\u1ea9n la b\u00e0n<\/h3>\n<p>Tr\u00e1i \u0111\u1ea5t ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t dipole t\u1eeb l\u1edbn, v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 \u0111i\u1ec1u h\u01b0\u1edbng d\u1ef1a v\u00e0o vi\u1ec7c \u0111\u1ecdc ch\u00ednh x\u00e1c h\u01b0\u1edbng tr\u01b0\u1eddng c\u1ee7a n\u00f3:<br \/>\n<strong>La b\u00e0n t\u1eeb<\/strong> C\u0103n ch\u1ec9nh song song v\u1edbi c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng \u0111\u1ecba ch\u1ea5t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng li\u00ean quan \u0111\u1ebfn kim lo\u1ea1i ph\u00eda b\u1eafc t\u1eeb t\u1eeb<br \/>\n<strong>M\u00e1y \u0111o t\u1eeb k\u1ef9 thu\u1eadt s\u1ed1<\/strong> \u0110i\u1ec7n tho\u1ea1i th\u00f4ng minh hi\u1ec7n \u0111\u1ea1i, drone v\u00e0 t\u00e0u bay s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn th\u1ec3 r\u1eafn \u0111\u1ec3 \u0111o vect\u01a1 \u0111\u01b0\u1eddng tr\u01b0\u1eddng tr\u00ean ba tr\u1ee5c<br \/>\n<strong>Hi\u1ec7u chu\u1ea9n la b\u00e0n:<\/strong> C\u00e1c k\u1ef9 s\u01b0 l\u1eadp b\u1ea3n \u0111\u1ed3 v\u00e0 kh\u1eafc ph\u1ee5c c\u00e1c sai l\u1ec7ch t\u1eeb \u0111\u1ecba ph\u01b0\u01a1ng (hi\u1ec7u \u1ee9ng s\u1eaft c\u1ee9ng v\u00e0 s\u1eaft m\u1ec1m) do kim lo\u1ea1i c\u1ea5u tr\u00fac g\u1ea7n \u0111\u00f3 g\u00e2y ra \u0111\u1ec3 duy tr\u00ec c\u00e1c \u0111\u1ecdc h\u01b0\u1edbng ch\u00ednh x\u00e1c.<\/p>\n<h3>Ch\u1eafn t\u1eeb v\u00e0 Thi\u1ebft b\u1ecb L\u01b0u tr\u1eef D\u1eef li\u1ec7u<\/h3>\n<p>Vi\u1ec7c h\u01b0\u1edbng d\u00f2ng \u0111\u01b0\u1eddng t\u1eeb l\u00e0 quan tr\u1ecdng nh\u01b0 vi\u1ec7c t\u1ea1o ch\u00fang:<br \/>\n<strong>Ch\u1eafn t\u1eeb:<\/strong> C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m v\u00e0 c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c bao quanh b\u1eb1ng h\u1ee3p kim \u0111\u1ed9 th\u1ea9m t\u1eeb cao (nh\u01b0 Mu-Metal). Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y \u0111\u1ecbnh h\u01b0\u1edbng <strong>\u0111\u01b0\u1eddng s\u1ee9c t\u1eeb<\/strong> qua ch\u00ednh l\u1edbp ch\u1eafn thay v\u00ec \u0111\u1ec3 ch\u00fang th\u00e2m nh\u1eadp v\u00e0o m\u1ea1ch \u0111i\u1ec7n d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng.<br \/>\n<strong>Thi\u1ebft b\u1ecb l\u01b0u tr\u1eef d\u1eef li\u1ec7u:<\/strong> \u1ed4 \u0111\u0129a c\u1ee9ng truy\u1ec1n th\u1ed1ng v\u00e0 h\u1ec7 th\u1ed1ng b\u0103ng t\u1eeb s\u1eed d\u1ee5ng \u0111\u1ea7u t\u1eeb \u1edf k\u00edch th\u01b0\u1edbc vi. B\u1eb1ng c\u00e1ch t\u1eadp trung c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng v\u00e0o c\u00e1c \u0111i\u1ec3m nh\u1ecf, c\u1ee5c b\u1ed9, ch\u00fang \u0111\u1ea3o h\u01b0\u1edbng t\u1eeb c\u1ee7a c\u00e1c mi\u1ec1n vi m\u00f4 tr\u00ean b\u1ec1 m\u1eb7t \u0111\u0129a \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u nh\u1ecb ph\u00e2n m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng<\/h2>\n<h3>C\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng c\u00f3 t\u1ed3n t\u1ea1i v\u1eadt l\u00fd hay ch\u1ec9 l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh?<\/h3>\n<p><strong>C\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng t\u1eeb<\/strong> l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh tr\u1ef1c quan v\u00e0 to\u00e1n h\u1ecdc m\u00e0 ch\u00fang ta s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea1i di\u1ec7n cho c\u00e1c l\u1ef1c t\u1eeb t\u1eeb tr\u01b0\u1eddng t\u1eeb t\u00ednh v\u00f4 h\u00ecnh. Trong khi tr\u01b0\u1eddng t\u1eeb t\u00ednh b\u1ea3n th\u00e2n l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 v\u1eadt l\u00fd th\u1ef1c s\u1ef1 t\u1ea1o ra l\u1ef1c \u0111o \u0111\u01b0\u1ee3c, c\u00e1c \u0111\u01b0\u1eddng ri\u00eang l\u1ebb kh\u00f4ng t\u1ed3n t\u1ea1i v\u1eadt l\u00fd trong kh\u00f4ng gian nh\u01b0 c\u00e1c s\u1ee3i ri\u00eang bi\u1ec7t. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 th\u1ef1c t\u1ebf \u0111\u1ec3 ph\u00e1c th\u1ea3o <strong>h\u01b0\u1edbng c\u1ee7a t\u1eeb tr\u01b0\u1eddng<\/strong> v\u00e0 c\u01b0\u1eddng \u0111\u1ed9.<\/p>\n<h3>T\u1ea1i sao c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng t\u1eeb c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u1ea1i h\u00ecnh th\u00e0nh c\u00e1c v\u00f2ng k\u00edn kh\u00e1c v\u1edbi c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng \u0111i\u1ec7n?<\/h3>\n<p>Kh\u00e1c v\u1edbi c\u00e1c tr\u01b0\u1eddng \u0111i\u1ec7n ph\u00e1t sinh t\u1eeb c\u00e1c \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng v\u00e0 k\u1ebft th\u00fac \u1edf c\u00e1c \u0111i\u1ec7n t\u00edch \u00e2m, c\u00e1c monopole t\u1eeb t\u00ednh kh\u00f4ng t\u1ed3n t\u1ea1i trong t\u1ef1 nhi\u00ean. M\u1ecdi nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t <strong>\u0111i\u1ec3m c\u1ef1c t\u1eeb<\/strong> v\u1edbi c\u1ea3 <strong>c\u00e1c c\u1ef1c B\u1eafc v\u00e0 c\u1ef1c Nam<\/strong>. V\u00ec \u0111i\u1ec1u n\u00e0y, ch\u00fang ta quan s\u00e1t <strong>c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng v\u00f2ng k\u00edn<\/strong> di chuy\u1ec3n li\u00ean t\u1ee5c t\u1eeb c\u1ef1c b\u1eafc t\u1edbi c\u1ef1c nam b\u00ean ngo\u00e0i nam ch\u00e2m, v\u00e0 quay l\u1ea1i t\u1eeb nam v\u1ec1 b\u1eafc th\u00f4ng qua ph\u1ea7n b\u00ean trong. C\u00fa v\u00f2ng li\u00ean t\u1ee5c n\u00e0y c\u0169ng l\u00e0 c\u01a1 b\u1ea3n khi \u0111\u00e1nh gi\u00e1 c\u00e1ch n\u0103ng l\u01b0\u1ee3ng truy\u1ec1n trong c\u00e1c h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng <a href=\"https:\/\/nbaem.com\/vi\/what-is-magnetic-coupling-in-transformer\/\">\u0111i\u1ec1u ph\u1ed1i t\u1eeb t\u00ednh trong bi\u1ebfn th\u1ebf<\/a>.<\/p>\n<h3>X\u1ea3y ra \u0111i\u1ec1u g\u00ec v\u1edbi c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng khi c\u00e1c c\u1ef1c t\u1eeb \u0111\u1ed1i l\u1eadp g\u1eb7p nhau?<\/h3>\n<p>Khi c\u00e1c c\u1ef1c \u0111\u1ed1i l\u1eadp \u0111\u1ed1i m\u1eb7t nhau, c\u00e1c d\u00f2ng l\u1ef1c ph\u00e1t sinh t\u1eeb c\u1ef1c b\u1eafc v\u00e0 \u0111i th\u1eb3ng v\u00e0o c\u1ef1c nam li\u1ec1n k\u1ec1. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t <strong>l\u01b0u \u0111\u1ed3 tr\u01b0\u1eddng t\u1eeb<\/strong> t\u1eadp trung gi\u1eefa hai m\u1eb7t, k\u00e9o c\u00e1c nam ch\u00e2m l\u1ea1i g\u1ea7n nhau:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>\u0110\u01b0\u1eddng ng\u1eafn nh\u1ea5t:<\/strong> C\u00e1c \u0111\u01b0\u1eddng co ng\u1eafn l\u1ea1i theo chi\u1ec1u d\u00e0i c\u1ee7a ch\u00fang, sinh ra m\u1ed9t l\u1ef1c c\u01a1 h\u1ecdc h\u00fat.<\/li>\n<li><strong>1. M\u1eadt \u0111\u1ed9 tr\u01b0\u1eddng cao h\u01a1n:<\/strong> 2. N\u1ed3ng \u0111\u1ed9 c\u00e1c \u0111\u01b0\u1eddng s\u1ee9c \u1edf gi\u1eefa hai c\u1ef1c d\u1eabn \u0111\u1ebfn t\u1eadp trung cao t\u1ea1i c\u00e1c khu v\u1ef1c c\u1ee5 th\u1ec3 <strong>\u0111\u1ed9 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>3. C\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111i qua kho\u1ea3ng ch\u00e2n kh\u00f4ng v\u00e0 v\u1eadt li\u1ec7u r\u1eafn kh\u00f4ng?<\/h3>\n<p>4. C\u00f3. C\u00e1c tr\u01b0\u1eddng t\u1eeb kh\u00f4ng y\u00eau c\u1ea7u m\u00f4i tr\u01b0\u1eddng v\u1eadt l\u00fd \u0111\u1ec3 lan truy\u1ec1n; ch\u00fang \u0111i xuy\u00ean qua ch\u00e2n kh\u00f4ng, kh\u00f4ng kh\u00ed, n\u01b0\u1edbc v\u00e0 c\u00e1c ch\u1ea5t r\u1eafn phi t\u1eeb t\u00ednh nh\u01b0 g\u1ed7, nh\u1ef1a, nh\u00f4m v\u00e0 \u0111\u1ed3ng thau. Tuy nhi\u00ean, c\u00e1c v\u1eadt li\u1ec7u ferromagnetic nh\u01b0 s\u1eaft, nikel v\u00e0 th\u00e9p \u0111\u1eb7c bi\u1ec7t ch\u1ecbu \u0111i\u1ec7n t\u1eeb s\u1ebd thay h\u01b0\u1edbng v\u00e0 t\u1eadp trung c\u00e1c \u0111\u01b0\u1eddng qua c\u1ea5u tr\u00fac c\u1ee7a ch\u00fang thay v\u00ec \u0111\u1ec3 ch\u00fang \u0111i qua nguy\u00ean v\u1eb9n.<\/p>\n<h3>5. Nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng th\u1ebf n\u00e0o \u0111\u1ebfn c\u01b0\u1eddng \u0111\u1ed9 c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng?<\/h3>\n<p>6. Nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 s\u1eafp x\u1ebfp nguy\u00ean t\u1eed b\u00ean trong c\u00e1c v\u1eadt li\u1ec7u t\u1eeb, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed5ng th\u1ec3 <strong>gi\u00e1 tr\u1ecb m\u1eadt \u0111\u1ed9 flux t\u1eeb<\/strong>:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>7. Nhi\u1ec7t \u0111\u1ed9 th\u1ea5p:<\/strong> 8. S\u1ef1 k\u00edch \u0111\u1ed9ng nhi\u1ec7t gi\u1ea3m, cho ph\u00e9p c\u00e1c mi\u1ec1n t\u1eeb s\u1eafp x\u1ebfp t\u1ed1t h\u01a1n v\u00e0 l\u00e0m t\u0103ng t\u1eadp trung \u0111\u01b0\u1eddng t\u1eeb n\u00f3i chung.<\/li>\n<li><strong>9. Nhi\u1ec7t \u0111\u1ed9 cao:<\/strong> 10. S\u1ef1 dao \u0111\u1ed9ng nhi\u1ec7t t\u0103ng l\u00e0m r\u1ed1i lo\u1ea1n s\u1ef1 s\u1eafp x\u1ebfp mi\u1ec1n, l\u00e0m gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng.<\/li>\n<li><strong>11. \u0110i\u1ec3m Curie:<\/strong> 12. N\u1ebfu b\u1ecb nung n\u00f3ng v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t Curie c\u1ee5 th\u1ec3 c\u1ee7a v\u1eadt li\u1ec7u, tr\u1eadt t\u1ef1 t\u1eeb v\u0129nh vi\u1ec5n b\u1ecb m\u1ea5t ho\u00e0n to\u00e0n, khi\u1ebfn c\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng b\u00ean ngo\u00e0i b\u1ecb v\u1ee1 v\u1ee5n. C\u00e1c k\u1ef9 s\u01b0 ph\u00e2n t\u00edch c\u1ea9n th\u1eadn c\u00e1c gi\u1edbi h\u1ea1n nhi\u1ec7t n\u00e0y khi t\u00ednh to\u00e1n <a href=\"https:\/\/nbaem.com\/vi\/what-is-the-strength-of-the-halbach-array-magnet-field\/\">13. c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a tr\u01b0\u1eddng nam ch\u00e2m Halbach<\/a> 14. cho c\u00e1c \u1ee9ng d\u1ee5ng motor v\u00e0 c\u1ea3m bi\u1ebfn \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<\/ul>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng v\u1edbi l\u1eddi gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng v\u1ec1 m\u1eabu, h\u01b0\u1edbng, c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 vai tr\u00f2 c\u1ee7a ch\u00fang trong vi\u1ec7c hi\u1ec3u c\u00e1c tr\u01b0\u1eddng t\u1eeb<\/p>","protected":false},"author":1,"featured_media":3997,"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-3998","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/10\/3D_magnetic_field_lines_visualization_cmP.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3998","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=3998"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3998\/revisions"}],"predecessor-version":[{"id":4006,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3998\/revisions\/4006"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3997"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3998"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3998"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3998"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}