{"id":4198,"date":"2025-06-06T00:00:00","date_gmt":"2025-06-06T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-electromagnetic-interference\/"},"modified":"2026-06-22T09:29:37","modified_gmt":"2026-06-22T09:29:37","slug":"what-is-electromagnetic-interference","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-electromagnetic-interference","title":{"rendered":"Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) l\u00e0 g\u00ec?"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1312\" height=\"736\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cccc4dd4f9fb41ac9c9e7243e57edbf6.webp\" alt=\"What is EMI Interference?\" class=\"wp-image-4194\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cccc4dd4f9fb41ac9c9e7243e57edbf6.webp 1312w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cccc4dd4f9fb41ac9c9e7243e57edbf6-300x168.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cccc4dd4f9fb41ac9c9e7243e57edbf6-1024x574.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cccc4dd4f9fb41ac9c9e7243e57edbf6-768x431.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cccc4dd4f9fb41ac9c9e7243e57edbf6-18x10.webp 18w\" sizes=\"(max-width: 1312px) 100vw, 1312px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb <strong>(EMI)<\/strong>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nhi\u1ec5u t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn <strong>(NHI\u1ec4U NHI\u1ec6P T\u1ea6N S\u1ed0 V\u00d4 TUY\u1ebeN)<\/strong>, \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c nhi\u1ec5u kh\u00f4ng mong mu\u1ed1n do c\u00e1c ngu\u1ed3n b\u00ean ngo\u00e0i g\u00e2y ra, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ea1ch \u0111i\u1ec7n th\u00f4ng qua c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, gh\u00e9p t\u0129nh \u0111i\u1ec7n ho\u1eb7c d\u1eabn truy\u1ec1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, EMI l\u00e0 \u201cnhi\u1ec5u\u201d c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1eb7c suy gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb (EMI) c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. N\u00f3 c\u00f3 th\u1ec3 g\u00e2y gi\u1ea3m t\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c khi\u1ebfn thi\u1ebft b\u1ecb ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p><\/li><li><p>EMI b\u1eaft ngu\u1ed3n t\u1eeb thi\u00ean nhi\u00ean, nh\u01b0 s\u00e9t ho\u1eb7c b\u00f9ng n\u1ed5 m\u1eb7t tr\u1eddi. N\u00f3 c\u0169ng xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c ngu\u1ed3n nh\u00e2n t\u1ea1o, nh\u01b0 \u0111\u1ed9ng c\u01a1 ho\u1eb7c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y.<\/p><\/li><li><p>\u0110\u1ec3 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi EMI, h\u00e3y s\u1eed d\u1ee5ng l\u1edbp ch\u1eafn, b\u1ed9 l\u1ecdc v\u00e0 n\u1ed1i \u0111\u1ea5t t\u1ed1t.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83e\udde0 \u0110\u1ecbnh ngh\u0129a v\u1ec1 Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb (EMI)<\/strong> l\u00e0 m\u1ed9t s\u1ef1 nhi\u1ec5u l\u00e0m \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n ho\u1eb7c \u0111i\u1ec7n t\u1eed. N\u00f3 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn suy gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u, m\u1ea5t d\u1eef li\u1ec7u ho\u1eb7c th\u1ea5t b\u1ea1i ho\u00e0n to\u00e0n c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udcca C\u00e1c lo\u1ea1i EMI<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Lo\u1ea1i<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>M\u00f4 t\u1ea3<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>V\u00ed d\u1ee5<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI d\u1eabn truy\u1ec1n<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Lan truy\u1ec1n qua d\u00e2y d\u1eabn ho\u1eb7c c\u00e1c v\u1ec7t m\u1ea1ch in (PCB).<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5u tr\u00ean c\u00e1p Ethernet, \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI b\u1ee9c x\u1ea1<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Lan truy\u1ec1n qua kh\u00f4ng kh\u00ed m\u00e0 kh\u00f4ng c\u1ea7n v\u1eadt d\u1eabn v\u1eadt l\u00fd.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ef1 c\u1ed1 WiFi do l\u00f2 vi s\u00f3ng ho\u1eb7c \u0111\u00e0i ph\u00e1t thanh g\u00e2y ra<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI li\u00ean t\u1ee5c<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5u \u1ed5n \u0111\u1ecbnh, kh\u00f4ng \u0111\u1ed5i.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5u t\u1eeb \u0111\u1ed9ng c\u01a1 ho\u1eb7c thi\u1ebft b\u1ecb t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI xung<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c \u0111\u1ee3t nhi\u1ec5u ng\u1eafn, \u0111\u1ed9t ng\u1ed9t.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u00e9t, ESD (ph\u00f3ng t\u0129nh \u0111i\u1ec7n)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI d\u1ea3i h\u1eb9p<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ed9t d\u1ea3i t\u1ea7n s\u1ed1 c\u1ee5 th\u1ec3.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5u radio AM\/FM<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI d\u1ea3i r\u1ed9ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ed9t d\u1ea3i t\u1ea7n s\u1ed1 r\u1ed9ng.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft b\u1ecb l\u1ed7i g\u00e2y nhi\u1ec5u chung<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI t\u1ef1 nhi\u00ean<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c ngu\u1ed3n m\u00f4i tr\u01b0\u1eddng ho\u1eb7c kh\u00ed quy\u1ec3n.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u00f4ng b\u00e3o, b\u00f9ng n\u1ed5 m\u1eb7t tr\u1eddi<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI n\u1ed9i h\u1ec7 th\u1ed1ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5u ho\u1eb7c gh\u00e9p n\u1ed9i b\u1ed9 trong h\u1ec7 th\u1ed1ng.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5u gi\u1eefa c\u00e1c v\u1ec7t m\u1ea1ch in (PCB) b\u00ean trong m\u1ed9t thi\u1ebft b\u1ecb<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup\/><tbody><tr\/><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/716a0dde2c8e4ca487b8b01db5439b4b.jpg\" alt=\"EMI Electromagnetic Interference\" class=\"wp-image-4195\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/716a0dde2c8e4ca487b8b01db5439b4b.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/716a0dde2c8e4ca487b8b01db5439b4b-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/716a0dde2c8e4ca487b8b01db5439b4b-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/716a0dde2c8e4ca487b8b01db5439b4b-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/716a0dde2c8e4ca487b8b01db5439b4b-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u26a1 Nguy\u00ean nh\u00e2n g\u00e2y ra Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb (EMI) c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau, l\u00e0m gi\u00e1n \u0111o\u1ea1n hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng ngu\u1ed3n n\u00e0y gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u hi\u1ec7u qu\u1ea3 c\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y nhi\u1ec5u \u0111i\u1ec7n t\u1eeb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c ngu\u1ed3n t\u1ef1 nhi\u00ean<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00ednh thi\u00ean nhi\u00ean t\u1ea1o ra n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n t\u1eeb c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u cho c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed. C\u00e1c tr\u1eadn s\u00e9t l\u00e0 m\u1ed9t trong nh\u1eefng ngu\u1ed3n EMI t\u1ef1 nhi\u00ean m\u1ea1nh nh\u1ea5t. Khi s\u00e9t x\u1ea3y ra, n\u00f3 t\u1ea1o ra c\u00e1c xung \u0111i\u1ec7n t\u1eeb c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n c\u00e1c thi\u1ebft b\u1ecb \u1edf g\u1ea7n. C\u00e1c v\u1ee5 b\u00f9ng n\u1ed5 m\u1eb7t tr\u1eddi c\u0169ng g\u00f3p ph\u1ea7n g\u00e2y nhi\u1ec5u. Nh\u1eefng \u0111\u1ee3t b\u1ee9c x\u1ea1 n\u00e0y t\u1eeb M\u1eb7t Tr\u1eddi c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ec7 th\u1ed1ng li\u00ean l\u1ea1c v\u1ec7 tinh v\u00e0 h\u1ec7 th\u1ed1ng GPS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t ngu\u1ed3n t\u1ef1 nhi\u00ean kh\u00e1c l\u00e0 t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t. C\u00e1c bi\u1ebfn \u0111\u1ed5i trong t\u1eeb tr\u01b0\u1eddng n\u00e0y, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c c\u01a1n b\u00e3o \u0111\u1ecba t\u1eeb, c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u01b0\u1edbi \u0111i\u1ec7n v\u00e0 m\u1ea1ng truy\u1ec1n th\u00f4ng. Ngay c\u1ea3 c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng th\u1eddi ti\u1ebft th\u01b0\u1eddng ng\u00e0y, nh\u01b0 gi\u00f4ng b\u00e3o, c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c nhi\u1ec5u \u0111i\u1ec7n t\u1eeb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c ngu\u1ed3n do con ng\u01b0\u1eddi t\u1ea1o ra<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi l\u00e0 y\u1ebfu t\u1ed1 \u0111\u00f3ng g\u00f3p l\u1edbn v\u00e0o EMI. C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n, nh\u01b0 \u0111\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n, th\u01b0\u1eddng ph\u00e1t ra n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n t\u1eeb trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh. \u0110\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh ph\u01b0\u01a1ng ti\u1ec7n d\u1eabn truy\u1ec1n EMI, lan r\u1ed9ng nhi\u1ec5u tr\u00ean di\u1ec7n t\u00edch l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c thi\u1ebft b\u1ecb truy\u1ec1n th\u00f4ng kh\u00f4ng d\u00e2y, bao g\u1ed3m \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Wi-Fi, c\u0169ng l\u00e0 m\u1ed9t ngu\u1ed3n ph\u1ed5 bi\u1ebfn kh\u00e1c. Nh\u1eefng thi\u1ebft b\u1ecb n\u00e0y ph\u00e1t ra t\u00edn hi\u1ec7u t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c. Ngay c\u1ea3 c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed \u2014 nh\u01b0 b\u1ea3ng m\u1ea1ch in v\u00e0 \u0111\u1ea7u n\u1ed1i \u2014 c\u0169ng c\u00f3 th\u1ec3 sinh ra EMI n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn \u0111\u00fang c\u00e1ch. M\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c nh\u00e0 m\u00e1y, t\u1ea1o ra EMI do ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00f4ng su\u1ea5t cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch nh\u1eadn di\u1ec7n c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y EMI, b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ec3 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh kh\u1ecfi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83e\uddf2 T\u00e1c \u0111\u1ed9ng c\u1ee7a EMI<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb h\u00e0ng ng\u00e0y c\u1ee7a b\u1ea1n. \u0110i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh x\u00e1ch tay v\u00e0 h\u1ec7 th\u1ed1ng nh\u00e0 th\u00f4ng minh th\u01b0\u1eddng g\u1eb7p c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t do EMI. V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y t\u1ed1c \u0111\u1ed9 internet ch\u1eadm h\u01a1n ho\u1eb7c c\u00e1c cu\u1ed9c g\u1ecdi b\u1ecb gi\u00e1n \u0111o\u1ea1n khi x\u1ea3y ra nhi\u1ec5u t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn. S\u1ef1 gi\u00e1n \u0111o\u1ea1n n\u00e0y b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1c t\u00edn hi\u1ec7u ch\u1ed3ng l\u1ea5n l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ee9c n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\">LINK-PP<\/a> hi\u1ec7n nay \u0111\u1ea7u t\u01b0 m\u1ea1nh v\u00e0o v\u1eadt li\u1ec7u ch\u1eafn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb <strong>(EMC)<\/strong>. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y ph\u1ea3n x\u1ea1 v\u00e0 h\u1ea5p th\u1ee5 b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb, ng\u0103n ch\u1eb7n nhi\u1ec5u t\u1eeb b\u00ean ngo\u00e0i x\u00e2m nh\u1eadp v\u00e0o c\u00e1c m\u1ea1ch \u0111i\u1ec7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ef1 gi\u00e1n \u0111o\u1ea1n trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">EMI \u0111\u1eb7t ra m\u1ed9t th\u00e1ch th\u1ee9c nghi\u00eam tr\u1ecdng trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p. M\u00e1y m\u00f3c c\u00f4ng su\u1ea5t cao v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n th\u01b0\u1eddng t\u1ea1o ra nhi\u1ec5u l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng. V\u00ed d\u1ee5, EMI c\u00f3 th\u1ec3 g\u00e2y l\u1ed7i trong c\u00e1c d\u00e2y chuy\u1ec1n l\u1eafp r\u00e1p t\u1ef1 \u0111\u1ed9ng ho\u1eb7c l\u00e0m sai l\u1ec7ch k\u1ebft qu\u1ea3 \u0111\u1ecdc c\u1ee7a c\u1ea3m bi\u1ebfn trong c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t. Nh\u1eefng gi\u00e1n \u0111o\u1ea1n n\u00e0y d\u1eabn \u0111\u1ebfn ch\u1eadm tr\u1ec5 s\u1ea3n xu\u1ea5t v\u00e0 chi ph\u00ed gia t\u0103ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >R\u1ee7i ro \u0111\u1ed1i v\u1edbi h\u1ea1 t\u1ea7ng thi\u1ebft y\u1ebfu<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea1 t\u1ea7ng thi\u1ebft y\u1ebfu, nh\u01b0 l\u01b0\u1edbi \u0111i\u1ec7n v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u, \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng r\u1ee7i ro \u0111\u00e1ng k\u1ec3 t\u1eeb EMI. Xung \u0111i\u1ec7n t\u1eeb <strong>(NHI\u1ec4U NHI\u1ec6P \u0110I\u1ec6N T\u1eea)<\/strong> v\u00e0 nhi\u1ec5u \u0111\u1ecba t\u1eeb <strong>(NHI\u1ec4U NHI\u1ec6P DO CH\u01af\u01a0NG TR\u00ccNH PH\u00d2NG TH\u1ee6)<\/strong> c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng v\u0129nh vi\u1ec5n c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n. Nh\u1eefng s\u1ef1 ki\u1ec7n n\u00e0y l\u00e0m gi\u00e1n \u0111o\u1ea1n c\u00e1c d\u1ecbch v\u1ee5 thi\u1ebft y\u1ebfu, bao g\u1ed3m m\u1ea1ng truy\u1ec1n th\u00f4ng v\u00e0 ph\u00e2n ph\u1ed1i n\u0103ng l\u01b0\u1ee3ng. B\u1ea3o v\u1ec7 h\u1ea1 t\u1ea7ng thi\u1ebft y\u1ebfu kh\u1ecfi EMI l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu nh\u1eb1m ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng m\u1ea5t \u0111i\u1ec7n tr\u00ean di\u1ec7n r\u1ed9ng v\u00e0 \u0111\u1ea3m b\u1ea3o an ninh qu\u1ed1c gia. V\u00ed d\u1ee5, t\u00e1c \u0111\u1ed9ng l\u00ean trung t\u00e2m d\u1eef li\u1ec7u c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ea5t m\u00e1t th\u00f4ng tin nh\u1ea1y c\u1ea3m.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd0d C\u00e1ch ph\u00e1t hi\u1ec7n Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ph\u00e1t hi\u1ec7n EMI c\u00f3 th\u1ec3 r\u1ea5t kh\u00f3 kh\u0103n nh\u01b0ng l\u1ea1i v\u00f4 c\u00f9ng quan tr\u1ecdng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>M\u00e1y ph\u00e2n t\u00edch ph\u1ed5:<\/strong> \u0110o c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eeb tr\u00ean nhi\u1ec1u d\u1ea3i t\u1ea7n s\u1ed1 kh\u00e1c nhau.<\/p><\/li><li><p><strong>\u0110\u1ea7u d\u00f2 tr\u01b0\u1eddng g\u1ea7n:<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c c\u00e1c ngu\u1ed3n g\u00e2y nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) c\u1ee5c b\u1ed9 tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB) ho\u1eb7c thi\u1ebft b\u1ecb.<\/p><\/li><li><p><strong>Bu\u1ed3ng ki\u1ec3m tra EMI (bu\u1ed3ng v\u00f4 h\u1ed3i \u00e2m):<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m chuy\u00ean nghi\u1ec7p \u0111\u1ec3 ki\u1ec3m tra s\u1ef1 ph\u00f9 h\u1ee3p ti\u00eau chu\u1ea9n.<\/p><\/li><li><p><strong>Ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng:<\/strong> Vi\u1ec7c che ch\u1eafn c\u00e1p k\u00e9m, v\u00f2ng n\u1ed1i \u0111\u1ea5t, ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 b\u1ed1 tr\u00ed m\u1ea1ch in (PCB) c\u00f3 th\u1ec3 l\u00e0 nh\u1eefng d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o.<\/p><\/li><li><p><strong>C\u00e1c s\u1ef1 c\u1ed1 thi\u1ebft b\u1ecb x\u1ea3y ra ng\u1eaft qu\u00e3ng:<\/strong> L\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u c\u1ee7a nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI), \u0111\u1eb7c bi\u1ec7t n\u1ebfu hi\u1ec7u su\u1ea5t gi\u1ea3m khi thi\u1ebft b\u1ecb \u0111\u1eb7t g\u1ea7n c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udee0\ufe0f C\u00e1ch kh\u1eafc ph\u1ee5c c\u00e1c v\u1ea5n \u0111\u1ec1 do nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI)<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/739af0bcf6944d40aec9d303c3b41c29.jpg\" alt=\"How to Solve EMI Problems\" class=\"wp-image-4196\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/739af0bcf6944d40aec9d303c3b41c29.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/739af0bcf6944d40aec9d303c3b41c29-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/739af0bcf6944d40aec9d303c3b41c29-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/739af0bcf6944d40aec9d303c3b41c29-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/739af0bcf6944d40aec9d303c3b41c29-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3m thi\u1ec3u ho\u1eb7c lo\u1ea1i b\u1ecf nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) \u0111\u00f2i h\u1ecfi thi\u1ebft k\u1ebf \u0111\u00fang c\u00e1ch v\u00e0 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u hi\u1ec7u qu\u1ea3:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Che ch\u1eafn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng v\u1ecf b\u1ecdc kim lo\u1ea1i ho\u1eb7c c\u00e1p \u0111\u01b0\u1ee3c che ch\u1eafn \u0111\u1ec3 ch\u1eb7n c\u00e1c tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2705 Gi\u1ea3i ph\u00e1p n\u1ed5i b\u1eadt 1: <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\"><strong>B\u1ed9 k\u1ebft n\u1ed1i RJ45 LINK-PP v\u1edbi c\u00e1c ch\u1ea5u che ch\u1eafn EMI<\/strong><\/a><br\/>C\u00e1c b\u1ed9 k\u1ebft n\u1ed1i hi\u1ec7u n\u0103ng cao n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi c\u00e1c ch\u1ea5u che ch\u1eafn EMI nh\u1eb1m ng\u0103n ch\u1eb7n nhi\u1ec5u \u0111i\u1ec7n t\u1eeb. Ph\u00f9 h\u1ee3p cho c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng, ch\u00fang gi\u00fap \u1ed5n \u0111\u1ecbnh vi\u1ec7c truy\u1ec1n t\u00edn hi\u1ec7u v\u00e0 ng\u0103n ng\u1eeba c\u00e1c s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn EMI trong c\u00e1c h\u1ec7 th\u1ed1ng Ethernet t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2705 Gi\u1ea3i ph\u00e1p n\u1ed5i b\u1eadt 2: <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-21644-fiber-optic-cages-connectors.htm\"><strong>V\u1ecf b\u1ea3o v\u1ec7 v\u00e0 b\u1ed9 k\u1ebft n\u1ed1i s\u1ee3i quang LINK-PP v\u1edbi ch\u1ea5u l\u00f2 xo ch\u1ed1ng EMI<\/strong><\/a><br\/>V\u1ecf b\u1ea3o v\u1ec7 v\u00e0 b\u1ed9 k\u1ebft n\u1ed1i s\u1ee3i quang c\u1ee7a LINK-PP \u0111\u01b0\u1ee3c trang b\u1ecb ch\u1ea5u l\u00f2 xo ch\u1ed1ng EMI \u0111\u1ea3m b\u1ea3o ti\u1ebfp \u0111\u1ecba v\u00e0 che ch\u1eafn m\u1ea1nh m\u1ebd. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu trong c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang t\u1ed1c \u0111\u1ed9 cao, n\u01a1i nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) c\u00f3 th\u1ec3 g\u00e2y suy gi\u1ea3m t\u00edn hi\u1ec7u nghi\u00eam tr\u1ecdng. Thi\u1ebft k\u1ebf ch\u1eafc ch\u1eafn c\u1ee7a ch\u00fang khi\u1ebfn s\u1ea3n ph\u1ea9m tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">B\u1ed9 thu ph\u00e1t quang<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Ti\u1ebfp \u0111\u1ecba<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ec1u \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t \u0111\u00fang c\u00e1ch \u0111\u1ec3 ng\u0103n d\u00f2ng \u0111i\u1ec7n r\u00f2 r\u1ec9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c n\u1ed1i \u0111\u1ea5t hi\u1ec7u qu\u1ea3, b\u1ea1n c\u1ea7n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>S\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec3m n\u1ed1i \u0111\u1ea5t ri\u00eang bi\u1ec7t:<\/strong> Tr\u00e1nh chia s\u1ebb \u0111\u01b0\u1eddng n\u1ed1i \u0111\u1ea5t v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c nh\u1eb1m gi\u1ea3m nhi\u1ec5u.<\/p><\/li><li><p><strong>Duy tr\u00ec tr\u1edf kh\u00e1ng th\u1ea5p:<\/strong> \u0110\u1ea3m b\u1ea3o \u0111\u01b0\u1eddng n\u1ed1i \u0111\u1ea5t c\u00f3 \u0111i\u1ec7n tr\u1edf t\u1ed1i thi\u1ec3u \u0111\u1ec3 gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p><\/li><li><p><strong>Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3:<\/strong> Ki\u1ec3m tra c\u00e1c d\u1ea5u hi\u1ec7u \u0103n m\u00f2n ho\u1eb7c c\u00e1c m\u1ed1i n\u1ed1i l\u1ecfng l\u1ebbo c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m hi\u1ec7u qu\u1ea3 c\u1ee7a vi\u1ec7c n\u1ed1i \u0111\u1ea5t.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p n\u1ed1i \u0111\u1ea5t v\u1edbi che ch\u1eafn v\u00e0 l\u1ecdc, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t h\u00e0ng r\u00e0o b\u1ea3o v\u1ec7 v\u1eefng ch\u1eafc ch\u1ed1ng l\u1ea1i nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI). Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y kh\u00f4ng ch\u1ec9 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n m\u00e0 c\u00f2n gi\u00fap b\u1ea1n tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 Ch\u1ec9 th\u1ecb T\u01b0\u01a1ng th\u00edch \u0110i\u1ec7n t\u1eeb (EMC Directive).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >L\u1ecdc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00eam c\u00e1c b\u1ed9 l\u1ecdc EMI (c\u00e1c h\u1ea1t ferrit, t\u1ee5 \u0111i\u1ec7n, v.v.) t\u1ea1i c\u00e1c \u0111i\u1ec3m \u0111\u1ea7u v\u00e0o ngu\u1ed3n v\u00e0 tr\u00ean c\u00e1c \u0111\u01b0\u1eddng t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c ph\u01b0\u01a1ng ph\u00e1p thi\u1ebft k\u1ebf PCB t\u1ed1t nh\u1ea5t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng m\u1eb7t ph\u1eb3ng n\u1ed1i \u0111\u1ea5t, gi\u1ea3m di\u1ec7n t\u00edch v\u00f2ng m\u1ea1ch v\u00e0 gi\u1eef c\u00e1c t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1p xo\u1eafn \u0111\u00f4i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u00fap tri\u1ec7t ti\u00eau c\u00e1c tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong Ethernet v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00e1ch bi\u1ec7t v\u1eadt l\u00fd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1eef c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 cao ho\u1eb7c \u0111i\u1ec7n \u00e1p cao tr\u00e1nh xa c\u00e1c m\u1ea1ch t\u01b0\u01a1ng t\u1ef1 nh\u1ea1y c\u1ea3m.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udcd8 T\u1eeb \u0111i\u1ec3n thu\u1eadt ng\u1eef EMI (C\u00e1c thu\u1eadt ng\u1eef nhanh)<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Thu\u1eadt ng\u1eef<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ecbnh ngh\u0129a<br><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>EMI<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>NHI\u1ec4U NHI\u1ec6P T\u1ea6N S\u1ed0 V\u00d4 TUY\u1ebeN<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec5u t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ch\u1eafn nhi\u1ec5u<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u0111\u1ec3 ch\u1eb7n c\u00e1c tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>L\u1ecdc<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng c\u00e1c linh ki\u1ec7n \u0111\u1ec3 ch\u1eb7n c\u00e1c t\u00edn hi\u1ec7u kh\u00f4ng mong mu\u1ed1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>V\u00f2ng n\u1ed1i \u0111\u1ea5t<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t ngu\u1ed3n g\u00e2y nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) do n\u1ed1i \u0111\u1ea5t kh\u00f4ng \u0111\u00fang c\u00e1ch<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>M\u00e1y ph\u00e2n t\u00edch ph\u1ed5<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft b\u1ecb d\u00f9ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a nhi\u1ec5u d\u1ef1a tr\u00ean t\u1ea7n s\u1ed1<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng, b\u1eaft ngu\u1ed3n t\u1eeb c\u1ea3 ngu\u1ed3n t\u1ef1 nhi\u00ean v\u00e0 nh\u00e2n t\u1ea1o. N\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng, ho\u1ea1t \u0111\u1ed9ng c\u00f4ng nghi\u1ec7p v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng then ch\u1ed1t. C\u00e1c bi\u1ec7n ph\u00e1p che ch\u1eafn, l\u1ecdc v\u00e0 n\u1ed1i \u0111\u1ea5t gi\u00fap gi\u1ea3m t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3. Vi\u1ec7c gi\u00e1m s\u00e1t li\u00ean t\u1ee5c c\u00e1c tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb gi\u00fap x\u00e1c \u0111\u1ecbnh xu h\u01b0\u1edbng ti\u1ebfp x\u00fac v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro t\u1eeb c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i nh\u01b0 5G. B\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady v\u00e0 an to\u00e0n trong m\u00f4i tr\u01b0\u1eddng hi\u1ec7n \u0111\u1ea1i. Vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 gi\u1ea3i quy\u1ebft nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 duy tr\u00ec hi\u1ec7u n\u0103ng v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i. T\u1eeb b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p, nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) c\u00f3 th\u1ec3 \u00e2m th\u1ea7m g\u00e2y ra c\u00e1c s\u1ef1 c\u1ed1 nghi\u00eam tr\u1ecdng.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed b\u1eb1ng c\u00e1ch \u0111\u01b0a n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n t\u1eeb kh\u00f4ng mong mu\u1ed1n v\u00e0o h\u1ec7 th\u1ed1ng, g\u00e2y ra s\u1ef1 c\u1ed1 v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t.<\/p>","protected":false},"author":1,"featured_media":4197,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[22,25],"class_list":["post-4198","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-integrated-rj45-connectors","tag-modular-jack"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=4198"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4198\/revisions"}],"predecessor-version":[{"id":11472,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4198\/revisions\/11472"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4197"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}