{"id":3351,"date":"2025-11-12T07:51:50","date_gmt":"2025-11-12T07:51:50","guid":{"rendered":"https:\/\/nbaem.com\/?p=3351"},"modified":"2025-11-13T01:23:35","modified_gmt":"2025-11-13T01:23:35","slug":"what-is-the-magnetic-declination","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-is-the-magnetic-declination\/","title":{"rendered":"\u0110\u1ecbnh h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng t\u1eeb"},"content":{"rendered":"<h2>\u0110\u1ecbnh ngh\u0129a ph\u01b0\u01a1ng v\u1ecb t\u1eeb tr\u01b0\u1eddng<\/h2>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Magnetic_declination\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>Ph\u01b0\u01a1ng v\u1ecb t\u1eeb tr\u01b0\u1eddng<\/strong><\/span><\/a> l\u00e0 g\u00f3c gi\u1eefa <strong>\u0111\u1ecba c\u1ef1c B\u1eafc t\u1eeb tr\u01b0\u1eddng<\/strong> (h\u01b0\u1edbng kim la b\u00e0n ch\u1ec9) v\u00e0 <strong>\u0111\u1ecba c\u1ef1c B\u1eafc th\u1eadt<\/strong> (B\u1eafc C\u1ef1c \u0111\u1ecba l\u00fd). N\u00f3i \u0111\u01a1n gi\u1ea3n, n\u00f3 cho th\u1ea5y m\u1ee9c \u0111\u1ed9 kh\u00e1c bi\u1ec7t gi\u1eefa \u0111\u1ecdc kim la b\u00e0n c\u1ee7a b\u1ea1n v\u00e0 h\u01b0\u1edbng B\u1eafc th\u1ef1c t\u1ebf.<\/p>\n<ul>\n<li><strong>B\u1eafc t\u1eeb<\/strong>: H\u01b0\u1edbng m\u00e0 kim la b\u00e0n ch\u1ec9, b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi tr\u01b0\u1eddng t\u1eeb c\u1ee7a Tr\u00e1i \u0110\u1ea5t.<\/li>\n<li><strong>B\u1eafc Th\u1eadt<\/strong>: B\u1eafc C\u1ef1c \u0111\u1ecba l\u00fd c\u1ed1 \u0111\u1ecbnh tr\u00ean b\u1ea3n \u0111\u1ed3.<\/li>\n<\/ul>\n<h3>Ph\u01b0\u01a1ng g\u00f3c ph\u01b0\u01a1ng v\u1ecb l\u00e0 g\u00ec?<\/h3>\n<p>G\u00f3c ph\u01b0\u01a1ng v\u1ecb cho bi\u1ebft li\u1ec7u \u0111\u1ecba c\u1ef1c B\u1eafc t\u1eeb tr\u01b0\u1eddng n\u1eb1m v\u1ec1 ph\u00eda \u0111\u00f4ng hay ph\u00eda t\u00e2y c\u1ee7a B\u1eafc Th\u1eadt. N\u00f3 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u1ed9, v\u00e0 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u b\u1eb1ng:<\/p>\n<table>\n<thead>\n<tr>\n<th>H\u01b0\u1edbng ph\u01b0\u01a1ng v\u1ecb<\/th>\n<th>\u00dd ngh\u0129a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ph\u01b0\u01a1ng v\u1ecb ph\u00eda \u0110\u00f4ng<\/strong><\/td>\n<td>\u0110\u1ecba c\u1ef1c B\u1eafc t\u1eeb tr\u01b0\u1eddng n\u1eb1m ph\u00eda \u0111\u00f4ng c\u1ee7a B\u1eafc Th\u1eadt<\/td>\n<\/tr>\n<tr>\n<td><strong>Ph\u01b0\u01a1ng v\u1ecb ph\u00eda T\u00e2y<\/strong><\/td>\n<td>\u0110\u1ecba c\u1ef1c B\u1eafc t\u1eeb tr\u01b0\u1eddng n\u1eb1m ph\u00eda t\u00e2y c\u1ee7a B\u1eafc Th\u1eadt<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Bi\u1ebft \u0111\u01b0\u1ee3c g\u00f3c n\u00e0y gi\u00fap b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111\u1ecdc c\u1ee7a kim la b\u00e0n \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng ch\u00ednh x\u00e1c. V\u00ed d\u1ee5, n\u1ebfu ph\u01b0\u01a1ng v\u1ecb l\u00e0 10\u00b0 ph\u00eda \u0111\u00f4ng, kim la b\u00e0n c\u1ee7a b\u1ea1n ch\u1ec9 10\u00b0 v\u1ec1 ph\u00eda b\u00ean ph\u1ea3i c\u1ee7a B\u1eafc Th\u1eadt. N\u1ebfu l\u00e0 5\u00b0 ph\u00eda t\u00e2y, kim la b\u00e0n ch\u1ec9 5\u00b0 v\u1ec1 ph\u00eda b\u00ean tr\u00e1i.<\/p>\n<p>T\u00f3m l\u1ea1i, <strong>ph\u01b0\u01a1ng v\u1ecb t\u1eeb tr\u01b0\u1eddng<\/strong> l\u00e0 y\u1ebfu t\u1ed1 ch\u1ec9nh s\u1eeda quan tr\u1ecdng gi\u1eefa nh\u1eefng g\u00ec kim la b\u00e0n c\u1ee7a b\u1ea1n hi\u1ec3n th\u1ecb v\u00e0 h\u01b0\u1edbng th\u1ef1c t\u1ebf tr\u00ean b\u1ea3n \u0111\u1ed3.<\/p>\n<h2>Khoa H\u1ecdc \u0110\u1eb1ng Sau \u0110\u1ed9 T\u1eeb Thi\u00ean<\/h2>\n<p>\u0110\u1ed9 t\u1eeb thi\u00ean xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t. H\u00e0nh tinh c\u1ee7a ch\u00fang ta ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t nam ch\u00e2m kh\u1ed5ng l\u1ed3 do s\u1eaft n\u00f3ng ch\u1ea3y di chuy\u1ec3n trong l\u00f5i c\u1ee7a n\u00f3. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra c\u00e1c c\u1ef1c t\u1eeb\u2014b\u1eafc v\u00e0 nam\u2014kh\u00f4ng ho\u00e0n to\u00e0n th\u1eb3ng h\u00e0ng v\u1edbi c\u00e1c c\u1ef1c \u0111\u1ecba l\u00fd, hay c\u1ef1c th\u1eadt. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u1ef1c b\u1eafc t\u1eeb v\u00e0 c\u1ef1c b\u1eafc th\u1eadt l\u00e0 nh\u1eefng \u0111i\u1ec3m kh\u00e1c nhau tr\u00ean \u0111\u1ecba c\u1ea7u.<\/p>\n<p>G\u00f3c gi\u1eefa hai \u0111i\u1ec3m c\u1ef1c b\u1eafc n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 g\u00f3c \u0111\u1ed9 t\u1eeb thi\u00ean. T\u00f9y thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n, g\u00f3c n\u00e0y c\u00f3 th\u1ec3 ch\u1ec9 v\u1ec1 h\u01b0\u1edbng \u0111\u00f4ng ho\u1eb7c t\u00e2y. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y x\u1ea3y ra v\u00ec l\u00f5i Tr\u00e1i \u0110\u1ea5t v\u00e0 c\u00e1c c\u1ef1c \u0111\u1ecba t\u1eeb c\u1ee7a n\u00f3 li\u00ean t\u1ee5c thay \u0111\u1ed5i. T\u1eeb tr\u01b0\u1eddng kh\u00f4ng c\u1ed1 \u0111\u1ecbnh; n\u00f3 thay \u0111\u1ed5i theo th\u1eddi gian do c\u00e1c chuy\u1ec3n \u0111\u1ed9ng trong l\u00f5i ngo\u00e0i l\u1ecfng c\u1ee7a Tr\u00e1i \u0110\u1ea5t.<\/p>\n<p>H\u01a1n n\u1eefa, \u0111\u1ed9 t\u1eeb thi\u00ean kh\u00e1c nhau t\u1eeb n\u01a1i n\u00e0y \u0111\u1ebfn n\u01a1i kh\u00e1c v\u00e0 th\u1eadm ch\u00ed thay \u0111\u1ed5i theo n\u0103m th\u00e1ng ho\u1eb7c th\u1eadp k\u1ef7. V\u00ed d\u1ee5, \u1edf m\u1ed9t s\u1ed1 khu v\u1ef1c, \u0111\u1ed9 t\u1eeb thi\u00ean c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t v\u00e0i \u0111\u1ed9 v\u1ec1 ph\u00eda \u0111\u00f4ng, trong khi \u1edf nh\u1eefng khu v\u1ef1c kh\u00e1c, n\u00f3 c\u00f3 th\u1ec3 l\u00e0 v\u00e0i \u0111\u1ed9 v\u1ec1 ph\u00eda t\u00e2y. S\u1ef1 thay \u0111\u1ed5i n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi \u0111i\u1ec1u h\u01b0\u1edbng v\u00e0 b\u1ea5t k\u1ef3 \u1ee9ng d\u1ee5ng n\u00e0o d\u1ef1a tr\u00ean h\u01b0\u1edbng t\u1eeb t\u00ednh.<\/p>\n<p>Hi\u1ec3u khoa h\u1ecdc \u0111\u1eb1ng sau \u0111\u1ed9 t\u1eeb thi\u00ean n\u00e0y gi\u00fap gi\u1ea3i th\u00edch t\u1ea1i sao c\u1ea7n c\u00f3 c\u00e1c ph\u00e9p \u0111o v\u00e0 c\u1eadp nh\u1eadt ch\u00ednh x\u00e1c, \u0111\u1eb7c bi\u1ec7t khi c\u00f3 li\u00ean quan \u0111\u1ebfn \u0111i\u1ec1u h\u01b0\u1edbng ch\u00ednh x\u00e1c ho\u1eb7c v\u1eadt li\u1ec7u t\u1eeb t\u00ednh. V\u00ed d\u1ee5, s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u t\u1eeb t\u00ednh v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1eefng v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong <a href=\"https:\/\/nbaem.com\/vi\/guide-to-rare-earth-magnets\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">nam ch\u00e2m neodymium ch\u1ea5t l\u01b0\u1ee3ng cao<\/span><\/strong><\/a>, \u0111\u00f2i h\u1ecfi ph\u1ea3i xem x\u00e9t c\u1ea9n th\u1eadn t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>\n<h2>C\u00e1ch \u0110o \u0110\u1ed9 T\u1eeb Thi\u00ean<\/h2>\n<p>\u0110o \u0111\u1ed9 t\u1eeb thi\u00ean bao g\u1ed3m m\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p gi\u00fap x\u00e1c \u0111\u1ecbnh g\u00f3c gi\u1eefa c\u1ef1c b\u1eafc t\u1eeb v\u00e0 c\u1ef1c b\u1eafc th\u1eadt t\u1ea1i b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed n\u00e0o. C\u00f4ng c\u1ee5 c\u01a1 b\u1ea3n nh\u1ea5t l\u00e0 <strong>la b\u00e0n t\u1eeb<\/strong>, ch\u1ec9 v\u1ec1 h\u01b0\u1edbng c\u1ef1c b\u1eafc t\u1eeb. Tuy nhi\u00ean, do \u0111\u1ed9 t\u1eeb thi\u00ean, c\u00e1c ch\u1ec9 s\u1ed1 la b\u00e0n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c c\u1ef1c b\u1eafc th\u1eadt.<\/p>\n<p>\u0110i\u1ec1u h\u01b0\u1edbng hi\u1ec7n \u0111\u1ea1i c\u0169ng s\u1eed d\u1ee5ng <strong>c\u00f4ng ngh\u1ec7 GPS<\/strong> k\u1ebft h\u1ee3p v\u1edbi c\u00e1c m\u00f4 h\u00ecnh \u0111\u1ecba t\u1eeb \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh c\u00e1c ch\u1ec9 s\u1ed1 la b\u00e0n. C\u00e1c m\u00f4 h\u00ecnh n\u00e0y t\u00ednh to\u00e1n g\u00f3c \u0111\u1ed9 t\u1eeb thi\u00ean d\u1ef1a tr\u00ean v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a b\u1ea1n v\u00e0 d\u1eef li\u1ec7u t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t hi\u1ec7n t\u1ea1i.<\/p>\n<p>Gi\u00e1 tr\u1ecb \u0111\u1ed9 t\u1eeb thi\u00ean \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng \u0111\u1ed9 <strong>\u0111\u00f4ng<\/strong> or <strong>t\u00e2y<\/strong>, cho bi\u1ebft c\u1ef1c b\u1eafc t\u1eeb n\u1eb1m \u1edf ph\u00eda \u0111\u00f4ng hay ph\u00eda t\u00e2y c\u1ee7a c\u1ef1c b\u1eafc th\u1eadt. V\u00ed d\u1ee5, \u0111\u1ed9 t\u1eeb thi\u00ean 10\u00b0 \u0111\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u1ef1c b\u1eafc t\u1eeb n\u1eb1m \u1edf 10 \u0111\u1ed9 v\u1ec1 ph\u00eda \u0111\u00f4ng c\u1ee7a c\u1ef1c b\u1eafc th\u1eadt, v\u00ec v\u1eady b\u1ea1n tr\u1eeb 10 \u0111\u1ed9 t\u1eeb ch\u1ec9 s\u1ed1 la b\u00e0n c\u1ee7a m\u00ecnh \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c c\u1ef1c b\u1eafc th\u1eadt.<\/p>\n<p>M\u1ed9t s\u1ed1 ngu\u1ed3n \u0111\u00e1ng tin c\u1eady gi\u00fap b\u1ea1n ki\u1ec3m tra \u0111\u1ed9 t\u1eeb thi\u00ean c\u1ee5c b\u1ed9:<\/p>\n<ul>\n<li><strong>C\u00f4ng c\u1ee5 t\u00ednh \u0111\u1ed9 t\u1eeb thi\u00ean c\u1ee7a NOAA<\/strong> cung c\u1ea5p gi\u00e1 tr\u1ecb c\u1eadp nh\u1eadt m\u1edbi nh\u1ea5t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c m\u00f4 h\u00ecnh t\u1eeb tr\u01b0\u1eddng \u0111\u1ecba t\u1eeb h\u1ecdc m\u1edbi nh\u1ea5t.<\/li>\n<li>In \u0111\u01b0\u1ee3c <strong>b\u1ea3n \u0111\u1ed3 ph\u01b0\u01a1ng h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng<\/strong> hi\u1ec3n th\u1ecb c\u00e1c bi\u1ebfn \u0111\u1ed5i v\u00e0 xu h\u01b0\u1edbng ph\u01b0\u01a1ng h\u01b0\u1edbng v\u00f9ng.<\/li>\n<\/ul>\n<p>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 n\u00e0y gi\u00fap ng\u01b0\u1eddi \u0111\u1ecbnh h\u01b0\u1edbng, nh\u00e0 kh\u1ea3o s\u00e1t v\u00e0 nh\u1eefng ng\u01b0\u1eddi y\u00eau th\u00edch ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i tr\u1eddi \u0111i\u1ec1u ch\u1ec9nh ch\u00ednh x\u00e1c c\u00e1c d\u1ee5ng c\u1ee5 c\u1ee7a h\u1ecd \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng ch\u00ednh x\u00e1c, n\u00e2ng cao an to\u00e0n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n<p>\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u00fang, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 cu\u1ed9c th\u1ea3o lu\u1eadn chi ti\u1ebft c\u1ee7a NBAEM v\u1ec1 <a href=\"https:\/\/nbaem.com\/vi\/what-does-polarity-mean-in-magnetic\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">\u00fd ngh\u0129a c\u1ee7a c\u1ef1c t\u1eeb<\/span><\/strong><\/a>.<\/p>\n<h2>T\u00e1c \u0111\u1ed9ng c\u1ee7a ph\u01b0\u01a1ng h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng \u0111\u1ed1i v\u1edbi \u0111\u1ecbnh h\u01b0\u1edbng<\/h2>\n<p>B\u1ecf qua ph\u01b0\u01a1ng h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn nh\u1eefng sai s\u00f3t nghi\u00eam tr\u1ecdng trong \u0111\u1ecbnh h\u01b0\u1edbng. V\u00ec la b\u00e0n ch\u1ec9 h\u01b0\u1edbng v\u1ec1 ph\u00eda b\u1eafc t\u1eeb tr\u01b0\u1eddng, kh\u00f4ng ph\u1ea3i h\u01b0\u1edbng b\u1eafc th\u1ef1c s\u1ef1, vi\u1ec7c kh\u00f4ng \u0111i\u1ec1u ch\u1ec9nh cho ph\u01b0\u01a1ng h\u01b0\u1edbng c\u00f3 th\u1ec3 khi\u1ebfn h\u01b0\u1edbng c\u1ee7a b\u1ea1n l\u1ec7ch v\u00e0i \u0111\u1ed9. \u0110i\u1ec1u n\u00e0y c\u00f3 v\u1ebb kh\u00f4ng nhi\u1ec1u, nh\u01b0ng tr\u00ean qu\u00e3ng \u0111\u01b0\u1eddng d\u00e0i, ngay c\u1ea3 m\u1ed9t sai s\u1ed1 nh\u1ecf c\u0169ng c\u00f3 th\u1ec3 l\u00e0m b\u1ea1n l\u1ec7ch kh\u1ecfi \u0111\u01b0\u1eddng \u0111i.<\/p>\n<p><strong>C\u00e1c v\u00ed d\u1ee5 v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a ph\u01b0\u01a1ng h\u01b0\u1edbng bao g\u1ed3m:<\/strong><\/p>\n<ul>\n<li><strong>\u0110\u1ecbnh h\u01b0\u1edbng h\u00e0ng h\u1ea3i:<\/strong> C\u00e1c t\u00e0u d\u1ef1a v\u00e0o h\u01b0\u1edbng ch\u00ednh x\u00e1c \u0111\u1ec3 tr\u00e1nh c\u00e1c m\u1ed1i nguy hi\u1ec3m v\u00e0 \u0111\u1ebfn c\u1ea3ng an to\u00e0n. Vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh sai ph\u01b0\u01a1ng h\u01b0\u1edbng c\u00f3 th\u1ec3 khi\u1ebfn ch\u00fang \u0111i l\u1ec7ch kh\u1ecfi tuy\u1ebfn \u0111\u01b0\u1eddng d\u1ef1 ki\u1ebfn.<\/li>\n<li><strong>H\u00e0ng kh\u00f4ng:<\/strong> Phi c\u00f4ng ph\u1ea3i t\u00ednh \u0111\u1ebfn ph\u01b0\u01a1ng h\u01b0\u1edbng khi theo d\u00f5i h\u00e0nh tr\u00ecnh bay v\u00e0 h\u01b0\u1edbng \u0111\u01b0\u1eddng b\u0103ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ea1 c\u00e1nh v\u00e0 c\u1ea5t c\u00e1nh an to\u00e0n.<\/li>\n<li><strong>\u0110i b\u1ed9 \u0111\u01b0\u1eddng d\u00e0i v\u00e0 ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i tr\u1eddi:<\/strong> Nh\u1eefng ng\u01b0\u1eddi \u0111i b\u1ed9 s\u1eed d\u1ee5ng la b\u00e0n trong r\u1eebng r\u1eadm c\u00f3 th\u1ec3 b\u1ecb l\u1ea1c n\u1ebfu kh\u00f4ng ch\u1ec9nh s\u1eeda cho ph\u01b0\u01a1ng h\u01b0\u1edbng.<\/li>\n<li><strong>Kh\u1ea3o s\u00e1t:<\/strong> Nh\u00e0 kh\u1ea3o s\u00e1t d\u1ef1a v\u00e0o c\u00e1c h\u01b0\u1edbng ch\u00ednh x\u00e1c \u0111\u1ec3 l\u1eadp b\u1ea3n \u0111\u1ed3 v\u00e0 x\u00e2y d\u1ef1ng; b\u1ecf qua ph\u01b0\u01a1ng h\u01b0\u1edbng d\u1eabn \u0111\u1ebfn c\u00e1c ph\u00e9p \u0111o sai l\u1ec7ch.<\/li>\n<\/ul>\n<p><strong>C\u00e1ch \u0111i\u1ec1u ch\u1ec9nh c\u00e1c ph\u00e9p \u0111o la b\u00e0n \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng ch\u00ednh x\u00e1c:<\/strong><\/p>\n<ul>\n<li><strong>T\u00ecm gi\u00e1 tr\u1ecb ph\u01b0\u01a1ng h\u01b0\u1edbng v\u00f9ng \u0111\u1ecba ph\u01b0\u01a1ng<\/strong> s\u1eed d\u1ee5ng b\u1ea3n \u0111\u1ed3 l\u1ec7ch t\u1eeb tr\u01b0\u1eddng ho\u1eb7c m\u00e1y t\u00ednh tr\u1ef1c tuy\u1ebfn.<\/li>\n<li><strong>N\u1ebfu l\u1ec7ch v\u1ec1 ph\u00eda \u0111\u00f4ng<\/strong>, tr\u1eeb g\u00f3c l\u1ec7ch kh\u1ecfi h\u01b0\u1edbng la b\u00e0n c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>N\u1ebfu l\u1ec7ch v\u1ec1 ph\u00eda t\u00e2y<\/strong>, c\u1ed9ng g\u00f3c l\u1ec7ch v\u00e0o h\u01b0\u1edbng la b\u00e0n.<\/li>\n<li>Th\u01b0\u1eddng xuy\u00ean c\u1eadp nh\u1eadt d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n, v\u00ec l\u1ec7ch t\u1eeb tr\u01b0\u1eddng thay \u0111\u1ed5i theo th\u1eddi gian.<\/li>\n<\/ul>\n<p>Hi\u1ec3u v\u00e0 \u00e1p d\u1ee5ng c\u00e1c \u0111i\u1ec1u ch\u1ec9nh n\u00e0y gi\u00fap b\u1ea1n \u0111i \u0111\u00fang h\u01b0\u1edbng, b\u1ea5t k\u1ec3 b\u1ea1n \u1edf \u0111\u00e2u ho\u1eb7c \u0111ang th\u1ef1c hi\u1ec7n lo\u1ea1i h\u00ecnh \u0111\u1ecbnh h\u01b0\u1edbng n\u00e0o. \u0110\u1ec3 \u0111\u1ea1t \u0111\u1ed9 ch\u00ednh x\u00e1c trong c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan, nh\u01b0 c\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb tr\u01b0\u1eddng trong \u0111\u1ed9ng c\u01a1 drone, vi\u1ec7c t\u00ecm ngu\u1ed3n v\u1eadt li\u1ec7u xem x\u00e9t c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u1ecba t\u1eeb l\u00e0 r\u1ea5t quan tr\u1ecdng\u2014t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao d\u00f9ng trong \u0111\u1ed9ng c\u01a1 drone<strong><span style=\"color: #ff6600;\"> <a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/magnets-used-in-drone-motors\/\" target=\"_blank\" rel=\"noopener\">t\u1ea1i \u0111\u00e2y<\/a>.<\/span><\/strong><\/p>\n<h2>L\u1ec7ch t\u1eeb tr\u01b0\u1eddng v\u00e0 T\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi Nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng (Chuy\u00ean m\u00f4n c\u1ee7a NBAEM)<\/h2>\n<p>L\u1ec7ch t\u1eeb tr\u01b0\u1eddng li\u00ean quan ch\u1eb7t ch\u1ebd \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u t\u1eeb v\u00ec h\u01b0\u1edbng v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1ch c\u00e1c v\u1eadt li\u1ec7u n\u00e0y ho\u1ea1t \u0111\u1ed9ng trong th\u1ef1c t\u1ebf. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 NBAEM, hi\u1ec3u r\u00f5 l\u1ec7ch t\u1eeb gi\u00fap thi\u1ebft k\u1ebf nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 thi\u1ebft b\u1ecb \u0111\u1ecba t\u1eeb, n\u01a1i ph\u1ea3n \u1ee9ng t\u1eeb ch\u00ednh x\u00e1c l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n<p>Khi s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u t\u1eeb, c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 s\u1ef1 c\u0103n ch\u1ec9nh c\u1ee7a c\u00e1c mi\u1ec1n t\u1eeb v\u00e0 th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi h\u01b0\u1edbng t\u1eeb bi\u1ebfn \u0111\u1ed5i c\u1ee7a Tr\u00e1i \u0110\u1ea5t. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c b\u1ea5t ch\u1ea5p s\u1ef1 thay \u0111\u1ed5i c\u1ee7a h\u01b0\u1edbng b\u1eafc t\u1eeb ho\u1eb7c l\u1ec7ch t\u1eeb \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n<p>NBAEM chuy\u00ean s\u1ea3n xu\u1ea5t c\u00e1c v\u1eadt li\u1ec7u t\u1eeb ch\u00ednh x\u00e1c cao ph\u00f9 h\u1ee3p cho c\u00e1c thi\u1ebft b\u1ecb y\u00eau c\u1ea7u h\u01b0\u1edbng t\u1eeb ch\u00ednh x\u00e1c, bao g\u1ed3m la b\u00e0n, c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb \u0111\u1ecbnh h\u01b0\u1edbng. B\u1eb1ng c\u00e1ch t\u00ednh \u0111\u1ebfn s\u1ef1 bi\u1ebfn \u0111\u1ed5i l\u1ec7ch t\u1eeb, NBAEM h\u1ed7 tr\u1ee3 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ef1a v\u00e0o tr\u01b0\u1eddng t\u1eeb \u1ed5n \u0111\u1ecbnh v\u00e0 ch\u00ednh x\u00e1c, t\u1eeb h\u00e0ng kh\u00f4ng \u0111\u1ebfn kh\u1ea3o s\u00e1t.<\/p>\n<p>&nbsp;<\/p>\n<h2>Thay \u0111\u1ed5i c\u1ee7a l\u1ec7ch t\u1eeb theo th\u1eddi gian v\u00e0 nguy\u00ean nh\u00e2n c\u1ee7a ch\u00fang<\/h2>\n<p>L\u1ec7ch t\u1eeb kh\u00f4ng c\u1ed1 \u0111\u1ecbnh\u2014n\u00f3 thay \u0111\u1ed5i d\u1ea7n theo n\u0103m do hi\u1ec7n t\u01b0\u1ee3ng bi\u1ebfn \u0111\u1ed5i l\u00e2u d\u00e0i. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y x\u1ea3y ra v\u00ec c\u00e1c c\u1ef1c t\u1eeb c\u1ee7a Tr\u00e1i \u0110\u1ea5t di chuy\u1ec3n ch\u1eadm l\u1ea1i khi s\u1eaft l\u1ecfng trong l\u00f5i c\u1ee7a h\u00e0nh tinh di chuy\u1ec3n v\u00e0 d\u1ecbch chuy\u1ec3n. Do \u0111\u00f3, g\u00f3c gi\u1eefa b\u1eafc t\u1eeb v\u00e0 b\u1eafc th\u1eadt thay \u0111\u1ed5i, \u0111\u00f4i khi l\u00ean \u0111\u1ebfn v\u00e0i \u0111\u1ed9 qua nhi\u1ec1u th\u1eadp k\u1ef7.<\/p>\n<p>Ngo\u00e0i s\u1ef1 di chuy\u1ec3n ch\u1eadm n\u00e0y, c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u1ed9t ng\u1ed9t nh\u01b0 b\u00e3o m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 t\u1ea1m th\u1eddi l\u00e0m nhi\u1ec5u lo\u1ea1n t\u1eeb tr\u01b0\u1eddng c\u1ee7a Tr\u00e1i \u0110\u1ea5t. Nh\u1eefng c\u01a1n b\u00e3o n\u00e0y, do c\u00e1c \u0111\u1ee3t b\u1ee9c x\u1ea1 c\u1ee7a c\u00e1c h\u1ea1t mang \u0111i\u1ec7n t\u1eeb M\u1eb7t Tr\u1eddi g\u00e2y ra, c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c dao \u0111\u1ed9ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a la b\u00e0n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb t\u1eeb nh\u1ea1y c\u1ea3m.<\/p>\n<p>C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c \u0111i\u1ec3m tham chi\u1ebfu t\u1eeb tr\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh\u2014nh\u01b0 h\u00e0ng kh\u00f4ng, \u0111\u1ecbnh v\u1ecb h\u00e0ng h\u1ea3i v\u00e0 kh\u1ea3o s\u00e1t\u2014ph\u1ea3i t\u00ednh \u0111\u1ebfn nh\u1eefng thay \u0111\u1ed5i n\u00e0y. B\u1ecf qua bi\u1ebfn \u0111\u1ed5i l\u00e2u d\u00e0i ho\u1eb7c \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn sai s\u1ed1 trong \u0111\u1ecbnh h\u01b0\u1edbng ho\u1eb7c \u0111\u1ecdc sai trong thi\u1ebft b\u1ecb hi\u1ec7u ch\u1ec9nh d\u1ef1a tr\u00ean b\u1eafc t\u1eeb. C\u00e1c c\u1eadp nh\u1eadt \u0111\u1ecbnh k\u1ef3 t\u1eeb c\u00e1c m\u00f4 h\u00ecnh \u0111\u1ecba t\u1eeb gi\u00fap c\u00e1c l\u0129nh v\u1ef1c n\u00e0y duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 tin c\u1eady. \u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p li\u00ean quan \u0111\u1ebfn v\u1eadt li\u1ec7u t\u1eeb, hi\u1ec3u r\u00f5 c\u00e1c bi\u1ebfn \u0111\u1ed5i n\u00e0y h\u1ed7 tr\u1ee3 thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c trong \u0111i\u1ec1u ki\u1ec7n t\u1eeb tr\u01b0\u1eddng thay \u0111\u1ed5i, li\u00ean quan \u0111\u1ebfn chuy\u00ean m\u00f4n v\u1ec1 \u0111\u1ed9 d\u1ecb h\u01b0\u1edbng t\u1eeb v\u00e0 s\u1ea3n xu\u1ea5t d\u1ee5ng c\u1ee5 t\u1eeb ch\u1ea5t l\u01b0\u1ee3ng cao.<\/p>\n<h2>M\u1eb9o th\u1ef1c t\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u l\u1ec7ch t\u1eeb tr\u01b0\u1eddng<\/h2>\n<p>S\u1eed d\u1ee5ng d\u1eef li\u1ec7u l\u1ec7ch t\u1eeb \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i tr\u1eddi, d\u1ef1 \u00e1n k\u1ef9 thu\u1eadt v\u00e0 nghi\u00ean c\u1ee9u khoa h\u1ecdc. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o th\u1ef1c t\u1ebf gi\u00fap b\u1ea1n l\u00e0m vi\u1ec7c ch\u00ednh x\u00e1c v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb l\u1ec7ch:<\/p>\n<ul>\n<li><strong>Lu\u00f4n ki\u1ec3m tra l\u1ec7ch t\u1eeb \u0111\u1ecba ph\u01b0\u01a1ng tr\u01b0\u1edbc khi ra ngo\u00e0i:<\/strong> L\u1ec7ch t\u1eeb thay \u0111\u1ed5i theo v\u1ecb tr\u00ed v\u00e0 theo th\u1eddi gian, v\u00ec v\u1eady h\u00e3y s\u1eed d\u1ee5ng b\u1ea3n \u0111\u1ed3 l\u1ec7ch ho\u1eb7c m\u00e1y t\u00ednh tr\u1ef1c tuy\u1ebfn c\u1eadp nh\u1eadt m\u1edbi nh\u1ea5t.<\/li>\n<li><strong>\u0110i\u1ec1u ch\u1ec9nh c\u00e1c ph\u00e9p \u0111o c\u1ee7a la b\u00e0n:<\/strong> Khi \u0111i\u1ec1u h\u01b0\u1edbng, c\u1ed9ng ho\u1eb7c tr\u1eeb g\u00f3c l\u1ec7ch h\u01b0\u1edbng v\u00e0o ho\u1eb7c ra kh\u1ecfi h\u01b0\u1edbng la b\u00e0n c\u1ee7a b\u1ea1n t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c g\u00f3c l\u1ec7ch h\u01b0\u1edbng l\u00e0 ph\u00eda \u0111\u00f4ng hay ph\u00eda t\u00e2y.<\/li>\n<li><strong>S\u1eed d\u1ee5ng c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 c\u00f4ng c\u1ee5 \u0111\u00e1ng tin c\u1eady:<\/strong> C\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 M\u00e1y t\u00ednh G\u00f3c l\u1ec7ch t\u1eeb t\u00ednh c\u1ee7a NOAA ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb GPS chuy\u00ean d\u1ee5ng cung c\u1ea5p c\u1eadp nh\u1eadt g\u00f3c l\u1ec7ch theo th\u1eddi gian th\u1ef1c \u0111\u1ec3 gi\u1eef cho c\u00e1c ph\u00e9p \u0111o c\u1ee7a b\u1ea1n ch\u00ednh x\u00e1c.<\/li>\n<li><strong>\u00c1p d\u1ee5ng g\u00f3c l\u1ec7ch trong k\u1ef9 thu\u1eadt v\u00e0 nghi\u00ean c\u1ee9u:<\/strong> \u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n li\u00ean quan \u0111\u1ebfn v\u1eadt li\u1ec7u t\u1eeb t\u00ednh ho\u1eb7c nghi\u00ean c\u1ee9u t\u1eeb tr\u01b0\u1eddng tr\u00e1i \u0111\u1ea5t, vi\u1ec7c t\u00edch h\u1ee3p g\u00f3c l\u1ec7ch \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a d\u1eef li\u1ec7u.<\/li>\n<li><strong>Lu\u00f4n c\u1eadp nh\u1eadt s\u1ef1 thay \u0111\u1ed5i c\u1ee7a g\u00f3c l\u1ec7ch:<\/strong> Th\u01b0\u1eddng xuy\u00ean c\u1eadp nh\u1eadt th\u00f4ng tin g\u00f3c l\u1ec7ch c\u1ee7a b\u1ea1n, \u0111\u1eb7c bi\u1ec7t n\u1ebfu c\u00f4ng vi\u1ec7c ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ea1n k\u00e9o d\u00e0i qua nhi\u1ec1u th\u00e1ng ho\u1eb7c n\u0103m.<\/li>\n<\/ul>\n<p><strong>M\u1eb9o an to\u00e0n v\u00e0 ch\u00ednh x\u00e1c:<\/strong><\/p>\n<ul>\n<li>Ki\u1ec3m tra l\u1ea1i c\u00e1c h\u01b0\u1edbng \u0111\u00e3 \u0111i\u1ec1u ch\u1ec9nh theo g\u00f3c l\u1ec7ch, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng kh\u00f3 kh\u0103n nh\u01b0 r\u1eebng r\u1eadm d\u00e0y \u0111\u1eb7c ho\u1eb7c tr\u00ean bi\u1ec3n.<\/li>\n<li>K\u1ebft h\u1ee3p \u0111\u1ecdc h\u01b0\u1edbng t\u1eeb la b\u00e0n t\u1eeb t\u00ednh v\u1edbi \u0111i\u1ec1u h\u01b0\u1edbng GPS khi c\u00f3 th\u1ec3 \u0111\u1ec3 gi\u1ea3m thi\u1ec3u l\u1ed7i.<\/li>\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c chuy\u00ean gia x\u1eed l\u00fd v\u1eadt li\u1ec7u t\u1eeb t\u00ednh\u2014nh\u01b0 nh\u1eefng ng\u01b0\u1eddi cung c\u1ea5p b\u1edfi NBAEM, n\u01a1i \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng\u2014tham kh\u1ea3o c\u00e1c t\u00e0i li\u1ec7u v\u1ec1 t\u1eeb tr\u01b0\u1eddng tr\u00e1i \u0111\u1ea5t th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 c\u0103n ch\u1ec9nh thi\u1ebft l\u1eadp c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch ho\u00e0n h\u1ea3o.<\/li>\n<\/ul>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 v\u1eadt li\u1ec7u t\u1eeb t\u00ednh v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang, NBAEM cung c\u1ea5p nh\u1eefng c\u00e1i nh\u00ecn s\u00e2u s\u1eafc v\u1ec1 c\u00e1c ch\u1ee7 \u0111\u1ec1 nh\u01b0 <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/where-is-the-strongest-of-a-magnet\/\" target=\"_blank\" rel=\"noopener\">khu v\u1ef1c nam ch\u00e2m m\u1ea1nh nh\u1ea5t<\/a> <\/span><\/strong>v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan ch\u1eb7t ch\u1ebd \u0111\u1ebfn \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u ch\u1ec9nh g\u00f3c l\u1ec7ch.<\/p>\n<h2>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 G\u00f3c l\u1ec7ch t\u1eeb tr\u01b0\u1eddng<\/h2>\n<h3>Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn v\u1ec1 g\u00f3c l\u1ec7ch t\u1eeb tr\u01b0\u1eddng l\u00e0 g\u00ec?<\/h3>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129 r\u1eb1ng B\u1eafc t\u1eeb v\u00e0 B\u1eafc th\u1eadt l\u00e0 gi\u1ed1ng nhau, nh\u01b0ng ch\u00fang kh\u00e1c nhau b\u1edfi g\u00f3c l\u1ec7ch t\u1eeb tr\u01b0\u1eddng. M\u1ed9t hi\u1ec3u l\u1ea7m kh\u00e1c l\u00e0 g\u00f3c l\u1ec7ch c\u1ed1 \u0111\u1ecbnh; th\u1ef1c t\u1ebf, n\u00f3 thay \u0111\u1ed5i theo th\u1eddi gian v\u00e0 v\u1ecb tr\u00ed. M\u1ed9t s\u1ed1 c\u0169ng tin r\u1eb1ng g\u00f3c l\u1ec7ch t\u1eeb tr\u01b0\u1eddng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec1u h\u01b0\u1edbng hi\u1ec7n \u0111\u1ea1i, nh\u01b0ng b\u1ecf qua n\u00f3 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn sai s\u1ed1, \u0111\u1eb7c bi\u1ec7t khi s\u1eed d\u1ee5ng la b\u00e0n truy\u1ec1n th\u1ed1ng.<\/p>\n<h3>Gi\u00e1 tr\u1ecb g\u00f3c l\u1ec7ch t\u1eeb tr\u01b0\u1eddng thay \u0111\u1ed5i bao l\u00e2u m\u1ed9t l\u1ea7n?<\/h3>\n<p>G\u00f3c l\u1ec7ch t\u1eeb tr\u01b0\u1eddng thay \u0111\u1ed5i t\u1eeb t\u1eeb, th\u01b0\u1eddng kho\u1ea3ng v\u00e0i ph\u00fat ho\u1eb7c \u0111\u1ed9 m\u1ed7i n\u0103m, t\u00f9y thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n. S\u1ef1 d\u1ecbch chuy\u1ec3n ch\u1eadm n\u00e0y do c\u00e1c chuy\u1ec3n \u0111\u1ed9ng trong tr\u01b0\u1eddng t\u1eeb c\u1ee7a Tr\u00e1i \u0111\u1ea5t v\u00e0 c\u00e1c c\u1ef1c t\u1eeb tr\u01b0\u1eddng. C\u1eadp nh\u1eadt \u0111\u1ecbnh k\u1ef3 qua b\u1ea3n \u0111\u1ed3 ho\u1eb7c m\u00e1y t\u00ednh g\u00f3c l\u1ec7ch l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng ch\u00ednh x\u00e1c.<\/p>\n<h3>C\u00f3 th\u1ec3 b\u1ecf qua g\u00f3c l\u1ec7ch t\u1eeb tr\u01b0\u1eddng trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng kh\u00f4ng?<\/h3>\n<p>Trong m\u1ed9t s\u1ed1 ho\u1ea1t \u0111\u1ed9ng th\u00f4ng th\u01b0\u1eddng ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng ng\u1eafn h\u1ea1n, nh\u01b0 \u0111i b\u1ed9 \u0111\u01b0\u1eddng d\u00e0i c\u01a1 b\u1ea3n ho\u1eb7c t\u00ecm h\u01b0\u1edbng \u0111\u01a1n gi\u1ea3n, b\u1ecf qua \u0111\u1ed9 l\u1ec7ch t\u1eeb tr\u01b0\u1eddng c\u00f3 th\u1ec3 kh\u00f4ng g\u00e2y ra v\u1ea5n \u0111\u1ec1 l\u1edbn. Tuy nhi\u00ean, trong c\u00e1c l\u0129nh v\u1ef1c ch\u00ednh x\u00e1c nh\u01b0 h\u00e0ng kh\u00f4ng, \u0111\u1ecbnh v\u1ecb h\u00e0ng h\u1ea3i, kh\u1ea3o s\u00e1t ho\u1eb7c k\u1ef9 thu\u1eadt, b\u1ecf qua \u0111\u1ed9 l\u1ec7ch t\u1eeb tr\u01b0\u1eddng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn nh\u1eefng sai s\u1ed1 \u0111\u00e1ng k\u1ec3. Lu\u00f4n \u0111i\u1ec1u ch\u1ec9nh ph\u00e9p \u0111o la b\u00e0n ho\u1eb7c c\u00e0i \u0111\u1eb7t GPS c\u1ee7a b\u1ea1n cho ph\u00f9 h\u1ee3p.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 \u0111\u1ed9 l\u1ec7ch t\u1eeb tr\u01b0\u1eddng l\u00e0 g\u00ec, t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 \u0111\u1ebfn \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 c\u00e1ch c\u00e1c v\u1eadt li\u1ec7u t\u1eeb c\u1ee7a NBAEM h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng t\u1eeb tr\u01b0\u1eddng ch\u00ednh x\u00e1c.<\/p>","protected":false},"author":1,"featured_media":3366,"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-3351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/Xnip2025-11-12_10-39-32.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3351","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=3351"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3351\/revisions"}],"predecessor-version":[{"id":3367,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3351\/revisions\/3367"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3366"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}