{"id":1869,"date":"2025-08-12T06:50:43","date_gmt":"2025-08-12T06:50:43","guid":{"rendered":"https:\/\/nbaem.com\/?p=1869"},"modified":"2025-08-13T04:34:16","modified_gmt":"2025-08-13T04:34:16","slug":"use-of-ndfeb-magnets-in-mobile-phones","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/use-of-ndfeb-magnets-in-mobile-phones\/","title":{"rendered":"S\u1eed d\u1ee5ng nam ch\u00e2m NdFeB trong c\u00f4ng ngh\u1ec7 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng"},"content":{"rendered":"<p>B\u1ea1n c\u00f3 t\u00f2 m\u00f2 v\u1ec1 c\u00e1ch <strong>nam ch\u00e2m NdFeB<\/strong>\u2014nh\u1eefng nam ch\u00e2m neodymium-iron-boron nh\u1ecf b\u00e9 nh\u01b0ng v\u00f4 c\u00f9ng m\u1ea1nh m\u1ebd\u2014\u0111ang \u0111\u1ecbnh h\u00ecnh t\u01b0\u01a1ng lai c\u1ee7a <strong>\u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/strong>? N\u1ebfu b\u1ea1n t\u1eebng t\u1ef1 h\u1ecfi \u0111i\u1ec1u g\u00ec l\u00e0m cho loa c\u1ee7a \u0111i\u1ec7n tho\u1ea1i b\u1ea1n r\u00f5 r\u00e0ng, c\u1ea3m gi\u00e1c rung \u0111\u1ed9ng v\u1eeba ph\u1ea3i, ho\u1eb7c c\u00e1ch s\u1ea1c kh\u00f4ng d\u00e2y c\u0103n ch\u1ec9nh ho\u00e0n h\u1ea3o nh\u01b0 th\u1ebf n\u00e0o, th\u00ec b\u1ea1n \u0111\u00e3 \u0111\u1ebfn \u0111\u00fang n\u01a1i.<\/p>\n<p>Trong c\u00f4ng ngh\u1ec7 di \u0111\u1ed9ng ng\u00e0y nay, vi\u1ec7c s\u1eed d\u1ee5ng <strong>nam ch\u00e2m NdFeB<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t xu h\u01b0\u1edbng\u2014\u0111\u00f3 l\u00e0 m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1. T\u1eeb vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t \u0111\u1ebfn t\u1ea1o ra thi\u1ebft k\u1ebf tinh t\u1ebf, nh\u1eefng nam ch\u00e2m n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng ph\u00eda sau h\u1eadu tr\u01b0\u1eddng. D\u00f9 b\u1ea1n l\u00e0 k\u1ef9 s\u01b0, ng\u01b0\u1eddi mua h\u00e0ng hay ng\u01b0\u1eddi \u0111am m\u00ea, vi\u1ec7c hi\u1ec3u r\u00f5 <strong>vi\u1ec7c s\u1eed d\u1ee5ng nam ch\u00e2m NdFeB trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/strong> l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 cao s\u1ef1 \u0111\u1ed5i m\u1edbi c\u1ee7a \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh hi\u1ec7n \u0111\u1ea1i.<\/p>\n<div id=\"attachment_1888\" style=\"width: 512px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1888\" class=\"size-full wp-image-1888\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/magnets-and-cell-phones.pic_.jpg\" alt=\"nam ch\u00e2m v\u00e0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng\" width=\"502\" height=\"485\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/magnets-and-cell-phones.pic_-200x193.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/magnets-and-cell-phones.pic_-300x290.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/magnets-and-cell-phones.pic_-400x386.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/magnets-and-cell-phones.pic_.jpg 502w\" sizes=\"(max-width: 502px) 100vw, 502px\" \/><p id=\"caption-attachment-1888\" class=\"wp-caption-text\">nam ch\u00e2m v\u00e0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/p><\/div>\n<p>H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 l\u00fd do t\u1ea1i sao nh\u1eefng nam ch\u00e2m n\u00e0y tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thi\u1ebfu v\u00e0 c\u00e1ch c\u00e1c nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady nh\u01b0 <strong>NBAEM<\/strong> \u0111ang th\u00fac \u0111\u1ea9y cu\u1ed9c c\u00e1ch m\u1ea1ng nam ch\u00e2m n\u00e0y.<\/p>\n<h2>Nam ch\u00e2m NdFeB l\u00e0 g\u00ec<\/h2>\n<p>Nam ch\u00e2m NdFeB, vi\u1ebft t\u1eaft c\u1ee7a <em>Nam ch\u00e2m Neodymium-Iron-Boron<\/em>, l\u00e0 m\u1ed9t lo\u1ea1i nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm n\u1ed5i ti\u1ebfng v\u1edbi s\u1ee9c m\u1ea1nh v\u00e0 hi\u1ec7u qu\u1ea3 v\u01b0\u1ee3t tr\u1ed9i. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, v\u00ec ch\u00fang mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1eeb cao trong k\u00edch th\u01b0\u1edbc r\u1ea5t nh\u1ecf.<\/p>\n<h3>Th\u00e0nh ph\u1ea7n v\u00e0 \u0111\u1eb7c t\u00ednh<\/h3>\n<ul>\n<li><strong>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh:<\/strong> Neodymium (Nd), S\u1eaft (Fe), v\u00e0 Boron (B)<\/li>\n<li><strong>S\u1ee9c m\u1ea1nh t\u1eeb:<\/strong> Trong s\u1ed1 cao nh\u1ea5t trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i nam ch\u00e2m th\u01b0\u01a1ng m\u1ea1i c\u00f3 s\u1eb5n<\/li>\n<li><strong>M\u1eadt \u0111\u1ed9:<\/strong> T\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, gi\u00fap gi\u1eef cho thi\u1ebft b\u1ecb nh\u1eb9 h\u01a1n<\/li>\n<li><strong>S\u1ea3n xu\u1ea5t:<\/strong> Th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m qua qu\u00e1 tr\u00ecnh sintering ho\u1eb7c li\u00ean k\u1ebft<\/li>\n<li><strong>L\u1edbp ph\u1ee7:<\/strong> Th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u1ea1 nickel, k\u1ebdm ho\u1eb7c epoxy \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n<\/li>\n<\/ul>\n<p><strong>B\u1ea3ng t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>Thu\u1ed9c t\u00ednh<\/th>\n<th>Nam ch\u00e2m NdFeB<\/th>\n<th>Ghi ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u1ed9 m\u1ea1nh t\u1eeb (BHmax)<\/td>\n<td>30\u201352 MGOe<\/td>\n<td>R\u1ea5t cao<\/td>\n<\/tr>\n<tr>\n<td>M\u1eadt \u0111\u1ed9<\/td>\n<td>Kho\u1ea3ng 7,4 g\/cm\u00b3<\/td>\n<td>Gi\u1eef cho ch\u00fang nh\u1ecf g\u1ecdn<\/td>\n<\/tr>\n<tr>\n<td>nhi\u1ec7t \u0111\u1ed9 Curie<\/td>\n<td>310\u2013380\u00b0C<\/td>\n<td>C\u00e1c lo\u1ea1i cao c\u1ea5p h\u01a1n ch\u1ed1ng ch\u1ecbu nhi\u1ec7t t\u1ed1t h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ed1ng \u0103n m\u00f2n<\/td>\n<td>Th\u1ea5p n\u1ebfu kh\u00f4ng c\u00f3 l\u1edbp ph\u1ee7<\/td>\n<td>L\u1edbp ph\u1ee7 l\u00e0 c\u1ea7n thi\u1ebft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 m\u1ea1nh t\u1eeb cao<\/strong> \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1i \u0111a trong thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn<\/li>\n<li><strong>Nh\u1eb9<\/strong> \u0111\u1ec3 tr\u00e1nh l\u00e0m t\u0103ng k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111i\u1ec7n t\u1eed di \u0111\u1ed9ng<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn<\/strong> cho ph\u00e9p t\u00edch h\u1ee3p v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ecf m\u00e0 kh\u00f4ng gi\u1ea3m c\u00f4ng su\u1ea5t<\/li>\n<\/ul>\n<h3>So s\u00e1nh v\u1edbi c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c trong \u0111i\u1ec7n t\u1eed<\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/th>\n<th>Hi\u1ec7u qu\u1ea3 k\u00edch th\u01b0\u1edbc<\/th>\n<th>Gi\u00e1 th\u00e0nh<\/th>\n<th>C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>NdFeB (Neodymium)<\/strong><\/td>\n<td>R\u1ea5t cao<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>\u0110i\u1ec7n tho\u1ea1i th\u00f4ng minh, \u0111\u1ed9ng c\u01a1 nh\u1ecf<\/td>\n<\/tr>\n<tr>\n<td><strong>Samari C\u00f4ban<\/strong><\/td>\n<td>Cao<\/td>\n<td>T\u1ed1t<\/td>\n<td>Cao<\/td>\n<td>\u0110i\u1ec7n t\u1eed ch\u1ecbu nhi\u1ec7t cao (<a href=\"https:\/\/nbaem.com\/vi\/samarium-cobalt-vs-neodymium-magnets\/\" target=\"_blank\" rel=\"noopener\">Xem th\u00eam t\u1ea1i \u0111\u00e2y<\/a>)<\/td>\n<\/tr>\n<tr>\n<td><strong>Ferrite (G\u1ed1m)<\/strong><\/td>\n<td>Th\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>\n<td>Kh\u00e1<\/td>\n<td>Th\u1ea5p<\/td>\n<td>Loa, thi\u1ebft b\u1ecb gi\u00e1 r\u1ebb<\/td>\n<\/tr>\n<tr>\n<td><strong>Alnico<\/strong><\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Kh\u00e1<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>C\u1ea3m bi\u1ebfn, b\u1ed9 thu guitar<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>So v\u1edbi nam ch\u00e2m ferrite ho\u1eb7c Alnico, nam ch\u00e2m NdFeB cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng t\u1eeb l\u1edbn h\u01a1n nhi\u1ec1u trong m\u1ed9t g\u00f3i nh\u1ecf h\u01a1n, nh\u1eb9 h\u01a1n. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u khi k\u1ef9 s\u01b0 c\u1ea7n c\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb m\u1ea1nh m\u1ebd nh\u01b0ng nh\u1ecf g\u1ecdn trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng <strong>cho \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/strong>.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft chi ti\u1ebft v\u1ec1 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm, xem <span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/products\/neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\">h\u01b0\u1edbng d\u1eabn v\u1ec1 nam ch\u00e2m neodymium c\u1ee7a ch\u00fang t\u00f4i<\/a>.<\/strong><\/span><\/p>\n<h2>\u1ee8ng d\u1ee5ng ch\u00ednh c\u1ee7a nam ch\u00e2m NdFeB trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/h2>\n<p>Nam ch\u00e2m NdFeB \u0111\u00f3ng vai tr\u00f2 trong h\u1ea7u h\u1ebft c\u00e1c t\u00ednh n\u0103ng ch\u00fang ta s\u1eed d\u1ee5ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh. S\u1ee9c m\u1ea1nh t\u1eeb cao v\u00e0 k\u00edch th\u01b0\u1edbc nh\u1ecf khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho nhi\u1ec1u th\u00e0nh ph\u1ea7n b\u00ean trong. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng n\u01a1i ch\u00fang th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n nh\u1ea5t:<\/p>\n<h3>C\u00e1c th\u00e0nh ph\u1ea7n loa v\u00e0 micro<\/h3>\n<p>Trong c\u1ea3 loa v\u00e0 micro, nam ch\u00e2m NdFeB gi\u00fap t\u1ea1o ra \u00e2m thanh r\u00f5 r\u00e0ng v\u00e0 m\u1ea1nh m\u1ebd m\u00e0 kh\u00f4ng chi\u1ebfm nhi\u1ec1u kh\u00f4ng gian. Ch\u00fang t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb m\u1ea1nh, gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh trong cu\u1ed9c g\u1ecdi, \u00e2m nh\u1ea1c v\u00e0 video.<\/p>\n<h3>\u0110\u1ed9ng c\u01a1 rung \u0111\u1ec3 ph\u1ea3n h\u1ed3i x\u00fac gi\u00e1c<\/h3>\n<p>Nh\u1eefng rung \u0111\u1ed9ng nh\u1ecf b\u1ea1n c\u1ea3m nh\u1eadn khi g\u00f5 ph\u00edm ho\u1eb7c nh\u1eadn th\u00f4ng b\u00e1o xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c \u0111\u1ed9ng c\u01a1 ph\u1ea3n h\u1ed3i x\u00fac gi\u00e1c \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n b\u1edfi nh\u1eefng nam ch\u00e2m n\u00e0y. Nam ch\u00e2m NdFeB t\u1ea1o ra ph\u1ea3n h\u1ed3i ch\u00ednh x\u00e1c v\u00e0 nh\u1ea1y b\u00e9n h\u01a1n, l\u00e0m cho c\u00e1c t\u01b0\u01a1ng t\u00e1c ch\u1ea1m c\u1ea3m gi\u00e1c t\u1ef1 nhi\u00ean h\u01a1n.<\/p>\n<h3>C\u1ea3m bi\u1ebfn t\u1eeb v\u00e0 \u1ee9ng d\u1ee5ng la b\u00e0n<\/h3>\n<p>La b\u00e0n t\u00edch h\u1ee3p trong \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh d\u1ef1a v\u00e0o c\u1ea3m bi\u1ebfn t\u1eeb tr\u01b0\u1eddng th\u01b0\u1eddng s\u1eed d\u1ee5ng nam ch\u00e2m NdFeB. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ecbnh v\u1ecb, c\u00e1c \u1ee9ng d\u1ee5ng d\u1eabn \u0111\u01b0\u1eddng v\u00e0 t\u00ednh n\u0103ng th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng ch\u00ednh x\u00e1c h\u01a1n b\u1eb1ng c\u00e1ch cung c\u1ea5p d\u1eef li\u1ec7u h\u01b0\u1edbng ch\u00ednh x\u00e1c.<\/p>\n<h3>C\u0103n ch\u1ec9nh v\u00e0 b\u1ea3o m\u1eadt s\u1ea1c kh\u00f4ng d\u00e2y<\/h3>\n<p>\u0110\u1ed1i v\u1edbi s\u1ea1c kh\u00f4ng d\u00e2y, c\u00e1c nam ch\u00e2m NdFeB nh\u1ecf gi\u00fap c\u0103n ch\u1ec9nh \u0111i\u1ec7n tho\u1ea1i ch\u00ednh x\u00e1c tr\u00ean \u0111\u1ebf s\u1ea1c, t\u0103ng hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1eef thi\u1ebft b\u1ecb \u1ed5n \u0111\u1ecbnh trong qu\u00e1 tr\u00ecnh s\u1ea1c. Ch\u00fang c\u0169ng t\u0103ng c\u01b0\u1eddng t\u00ednh b\u1ea3o m\u1eadt t\u1eeb t\u00ednh cho c\u00e1c ph\u1ee5 ki\u1ec7n nh\u01b0 gi\u00e1 \u0111\u1ee1 ho\u1eb7c \u1ed1p l\u01b0ng t\u1eeb t\u00ednh.<\/p>\n<h3>\u1ed4n \u0111\u1ecbnh m\u00f4-\u0111un camera v\u00e0 t\u1ef1 \u0111\u1ed9ng l\u1ea5y n\u00e9t<\/h3>\n<p>Trong camera \u0111i\u1ec7n tho\u1ea1i, c\u00e1c nam ch\u00e2m n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u1ed5n \u0111\u1ecbnh h\u00ecnh \u1ea3nh quang h\u1ecdc (OIS) v\u00e0 t\u1ef1 \u0111\u1ed9ng l\u1ea5y n\u00e9t. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1eef cho c\u00e1c b\u1ee9c \u1ea3nh \u1ed5n \u0111\u1ecbnh v\u00e0 r\u00f5 n\u00e9t, ngay c\u1ea3 khi tay b\u1ea1n h\u01a1i rung, mang l\u1ea1i h\u00ecnh \u1ea3nh s\u1eafc n\u00e9t h\u01a1n v\u00e0 video m\u01b0\u1ee3t m\u00e0 h\u01a1n.<\/p>\n<h2>\u01afu \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng nam ch\u00e2m NdFeB trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/h2>\n<p>Nam ch\u00e2m NdFeB mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch r\u00f5 r\u00e0ng cho \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t, thi\u1ebft k\u1ebf v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<h3>1. M\u1ee9c \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng m\u1ea1nh h\u01a1n \u0111\u1ec3 hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n<\/h3>\n<p>Nam ch\u00e2m neodymium cung c\u1ea5p s\u1ee9c m\u1ea1nh t\u1eeb cao h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec7n t\u1eed. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u00e2m thanh r\u00f5 h\u01a1n trong loa, c\u1ea3m bi\u1ebfn t\u1eeb ch\u00ednh x\u00e1c h\u01a1n v\u00e0 \u1ed5n \u0111\u1ecbnh camera m\u01b0\u1ee3t m\u00e0 h\u01a1n.<\/p>\n<h3>2. Thu nh\u1ecf v\u00e0 ti\u1ebft ki\u1ec7m kh\u00f4ng gian<\/h3>\n<p>V\u00ec nh\u1eefng nam ch\u00e2m n\u00e0y c\u00f3 s\u1ee9c m\u1ea1nh r\u1ea5t l\u1edbn so v\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a ch\u00fang, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n tho\u1ea1i c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf c\u00e1c thi\u1ebft b\u1ecb m\u1ecfng h\u01a1n v\u00e0 nh\u1eb9 h\u01a1n m\u00e0 kh\u00f4ng m\u1ea5t \u0111i ch\u1ee9c n\u0103ng. \u0110\u00e2y l\u00e0 m\u1ed9t th\u00e0nh t\u1ef1u l\u1edbn cho c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng nh\u1ecf g\u1ecdn, n\u01a1i m\u1ed7i milimet \u0111\u1ec1u quan tr\u1ecdng.<\/p>\n<h3>3. \u0110\u1ed9 b\u1ec1n v\u00e0 ch\u1ecbu nhi\u1ec7t cao<\/h3>\n<p>Nam ch\u00e2m NdFeB ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec7n tho\u1ea1i \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 ch\u1ecbu \u0111\u1ef1ng s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y. Ch\u00fang duy tr\u00ec hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh ngay c\u1ea3 khi nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i do s\u1ea1c b\u00ecnh th\u01b0\u1eddng, s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi ho\u1eb7c cu\u1ed9n d\u00e2y s\u1ea1c kh\u00f4ng d\u00e2y.<\/p>\n<h3>4. C\u01a1 ch\u1ebf ph\u1ea3n h\u1ed3i ch\u00ednh x\u00e1c h\u01a1n<\/h3>\n<p>Trong c\u00e1c \u0111\u1ed9ng c\u01a1 ph\u1ea3n h\u1ed3i x\u00fac gi\u00e1c, nam ch\u00e2m m\u1ea1nh h\u01a1n t\u1ea1o ra c\u00e1c rung \u0111\u1ed9ng s\u1eafc n\u00e9t, ch\u00ednh x\u00e1c h\u01a1n. \u0110i\u1ec1u n\u00e0y l\u00e0m cho ph\u1ea3n h\u1ed3i c\u1ea3m \u1ee9ng tr\u1edf n\u00ean th\u1ef1c t\u1ebf h\u01a1n, d\u00f9 b\u1ea1n \u0111ang g\u00f5, ch\u01a1i game hay s\u1eed d\u1ee5ng c\u00e1c c\u1eed ch\u1ec9 \u0111i\u1ec1u h\u01b0\u1edbng.<\/p>\n<p>B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh cao v\u1edbi k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, nam ch\u00e2m NdFeB gi\u00fap \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh mang l\u1ea1i tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng nhanh h\u01a1n, r\u00f5 r\u00e0ng h\u01a1n v\u00e0 s\u1ed1ng \u0111\u1ed9ng h\u01a1n m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng k\u00edch th\u01b0\u1edbc.<\/p>\n<p>&nbsp;<\/p>\n<h2>Xu h\u01b0\u1edbng th\u1ecb tr\u01b0\u1eddng v\u00e0 \u0111\u1ed5i m\u1edbi trong nam ch\u00e2m NdFeB cho \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/h2>\n<p>Th\u1ecb tr\u01b0\u1eddng \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh t\u1ea1i Vi\u1ec7t Nam \u0111ang th\u00fac \u0111\u1ea9y c\u00e1c thi\u1ebft b\u1ecb m\u1ecfng h\u01a1n, nh\u1eb9 h\u01a1n v\u00e0 m\u1ea1nh m\u1ebd h\u01a1n. \u0110i\u1ec1u n\u00e0y \u0111ang th\u00fac \u0111\u1ea9y m\u1ed9t <strong>nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng v\u1ec1 c\u00e1c nam ch\u00e2m NdFeB nh\u1ecf g\u1ecdn v\u00e0 m\u1ea1nh m\u1ebd<\/strong> ph\u00f9 h\u1ee3p v\u1edbi kh\u00f4ng gian ch\u1eadt h\u1eb9p m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t.<\/p>\n<h3>Nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng trong \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh<\/h3>\n<ul>\n<li>Ng\u01b0\u1eddi d\u00f9ng mong \u0111\u1ee3i \u00e2m thanh phong ph\u00fa h\u01a1n, ph\u1ea3n h\u1ed3i x\u00fac gi\u00e1c m\u1ea1nh h\u01a1n v\u00e0 ch\u1ee9c n\u0103ng camera m\u01b0\u1ee3t m\u00e0, t\u1ea5t c\u1ea3 trong nh\u1eefng chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i nh\u1ecf h\u01a1n.<\/li>\n<li>Nam ch\u00e2m NdFeB \u0111\u00e1p \u1ee9ng nhu c\u1ea7u n\u00e0y v\u1edbi <strong>s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh cao trong k\u00edch th\u01b0\u1edbc nh\u1ecf<\/strong>, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu cho c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i.<\/li>\n<\/ul>\n<h3>Ti\u1ebfn b\u1ed9 trong c\u00e1c lo\u1ea1i c\u1ea5p \u0111\u1ed9 v\u1eadt li\u1ec7u NdFeB<\/h3>\n<ul>\n<li>C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1eb7c bi\u1ec7t d\u00e0nh cho \u0111i\u1ec7n t\u1eed, n\u00e2ng cao <strong>\u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/strong> v\u00e0 <strong>kh\u00e1ng t\u1eeb ch\u1ed1ng m\u1ea5t t\u1eeb t\u00ednh<\/strong>.<\/li>\n<li>Nh\u1eefng n\u00e2ng c\u1ea5p n\u00e0y gi\u00fap duy tr\u00ec hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, ngay c\u1ea3 khi nhi\u1ec7t \u0111\u1ed9 cao sinh ra trong c\u00e1c \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh ti\u00eau th\u1ee5 nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng ng\u00e0y nay.<\/li>\n<\/ul>\n<h3>Vai tr\u00f2 trong thi\u1ebft k\u1ebf \u0111i\u1ec7n tho\u1ea1i g\u1eadp v\u00e0 linh ho\u1ea1t<\/h3>\n<ul>\n<li>C\u00e1c thi\u1ebft b\u1ecb g\u1eadp c\u1ea7n <strong>c\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh m\u1ecfng h\u01a1n<\/strong> nh\u01b0ng v\u1eabn \u0111\u1ea3m b\u1ea3o l\u1ef1c k\u00e9o \u0111\u00e1ng tin c\u1eady.<\/li>\n<li>Nam ch\u00e2m NdFeB hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u00edch h\u1ee3p m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch v\u00e0o c\u00e1c b\u1ea3n l\u1ec1 linh ho\u1ea1t, m\u00f3c t\u1eeb v\u00e0 h\u1ec7 th\u1ed1ng c\u0103n ch\u1ec9nh cho c\u00e1c thi\u1ebft b\u1ecb n\u00e0y.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 vi\u1ec7c s\u1eed d\u1ee5ng nam ch\u00e2m NdFeB trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, loa t\u0103ng c\u01b0\u1eddng, camera, s\u1ea1c kh\u00f4ng d\u00e2y v\u00e0 thi\u1ebft k\u1ebf hi\u1ec7u su\u1ea5t cao nh\u1ecf g\u1ecdn<\/p>","protected":false},"author":1,"featured_media":1888,"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-1869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/magnets-and-cell-phones.pic_.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1869","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=1869"}],"version-history":[{"count":4,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1869\/revisions"}],"predecessor-version":[{"id":1889,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1869\/revisions\/1889"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/1888"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}