{"id":28049,"date":"2023-08-08T16:01:14","date_gmt":"2023-08-08T09:01:14","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=28049"},"modified":"2024-11-25T15:22:03","modified_gmt":"2024-11-25T08:22:03","slug":"may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=28049","title":{"rendered":"M\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 g\u00ec? Ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>M\u00e1y hi\u1ec7n s\u00f3ng<\/strong>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 oscilloscope, l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed v\u00e0 \u0111o l\u01b0\u1eddng. N\u00f3 cho ph\u00e9p b\u1ea1n quan s\u00e1t v\u00e0 ph\u00e2n t\u00edch c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n theo th\u1eddi gian, t\u1eeb \u0111\u00f3 gi\u00fap x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn m\u1ea1ch \u0111i\u1ec7n t\u1eed. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 th\u00f4ng tin v\u1ec1 m\u00e1y hi\u1ec7n s\u00f3ng, c\u0169ng nh\u01b0 nh\u1eefng \u1ee9ng d\u1ee5ng v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3.<\/span><\/p>\n<figure id=\"attachment_28050\" aria-describedby=\"caption-attachment-28050\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28050 size-full\" title=\"M\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 g\u00ec? Ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no.jpg\" alt=\"M\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 g\u00ec? Ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3\" width=\"750\" height=\"400\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-300x160.jpg 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-510x272.jpg 510w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-28050\" class=\"wp-caption-text\">M\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 g\u00ec? Ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3<\/figcaption><\/figure>\n<p style=\"padding-left: 40px;\">Xem th\u00eam:\u00a0<a href=\"https:\/\/hocvienit.vn\/nhung-nguoi-ban-dong-hanh-can-thiet-cua-nguoi-ky-thuat-vien-sua-chua-may-tinh\/\" target=\"_blank\" rel=\"noopener\">Nh\u1eefng \u201cng\u01b0\u1eddi b\u1ea1n \u0111\u1ed3ng h\u00e0nh\u201d c\u1ea7n thi\u1ebft c\u1ee7a ng\u01b0\u1eddi k\u1ef9 thu\u1eadt vi\u00ean s\u1eeda ch\u1eefa m\u00e1y t\u00ednh<\/a><\/p>\n<h2 style=\"text-align: justify;\"><strong>M\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 g\u00ec?<\/strong><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">M\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng m\u1ea1nh m\u1ebd, c\u00f3 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb bi\u1ec3u \u0111\u1ed3 c\u1ee7a c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n theo th\u1eddi gian. Trong \u0111\u00f3, tr\u1ee5c X bi\u1ec3u th\u1ecb th\u1eddi gian v\u00e0 tr\u1ee5c Y bi\u1ec3u th\u1ecb \u0111i\u1ec7n \u00e1p. N\u00f3 cho ph\u00e9p b\u1ea1n quan s\u00e1t s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a c\u00e1c t\u00edn hi\u1ec7u, t\u1eeb \u0111\u00f3 gi\u00fap x\u00e1c \u0111\u1ecbnh t\u1ea7n s\u1ed1, bi\u00ean \u0111\u1ed9 v\u00e0 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m quan tr\u1ecdng kh\u00e1c c\u1ee7a ch\u00fang.<\/span><\/p>\n<figure id=\"attachment_28051\" aria-describedby=\"caption-attachment-28051\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28051 size-full\" title=\"M\u00e1y hi\u1ec7n s\u00f3ng\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1.jpg\" alt=\"M\u00e1y hi\u1ec7n s\u00f3ng\" width=\"750\" height=\"464\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1-300x186.jpg 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1-510x316.jpg 510w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-28051\" class=\"wp-caption-text\">M\u00e1y hi\u1ec7n s\u00f3ng<\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\"><strong>Ch\u1ee9c n\u0103ng c\u1ee7a m\u00e1y hi\u1ec7n s\u00f3ng<\/strong><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">M\u00e1y hi\u1ec7n s\u00f3ng c\u00f3 c\u00e1c ch\u1ee9c n\u0103ng sau:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>X\u00e1c \u0111\u1ecbnh t\u1ea7n s\u1ed1 v\u00e0 chu k\u1ef3:<\/strong> M\u00e1y hi\u1ec7n s\u00f3ng gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh t\u1ea7n s\u1ed1 v\u00e0 chu k\u1ef3 c\u1ee7a c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n bi\u1ebft \u0111\u01b0\u1ee3c s\u1ef1 thay \u0111\u1ed5i v\u00e0 dao \u0111\u1ed9ng c\u1ee7a t\u00edn hi\u1ec7u qua th\u1eddi gian.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Ph\u00e2n t\u00edch h\u00ecnh d\u1ea1ng s\u00f3ng:<\/strong> B\u1eb1ng c\u00e1ch quan s\u00e1t bi\u1ec3u \u0111\u1ed3 tr\u00ean m\u00e1y hi\u1ec7n s\u00f3ng, b\u1ea1n c\u00f3 th\u1ec3 ph\u00e2n t\u00edch h\u00ecnh d\u1ea1ng c\u1ee7a s\u00f3ng t\u00edn hi\u1ec7u nh\u01b0 s\u00f3ng sin, s\u00f3ng vu\u00f4ng, tam gi\u00e1c, r\u0103ng c\u01b0a v\u00e0 nhi\u1ec1u lo\u1ea1i kh\u00e1c.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>X\u00e1c \u0111\u1ecbnh th\u1eddi gian t\u0103ng v\u00e0 gi\u1ea3m:<\/strong> Th\u1eddi gian t\u0103ng (Rise time) v\u00e0 th\u1eddi gian gi\u1ea3m (Fall time) c\u1ee7a s\u00f3ng t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 xem x\u00e9t v\u00e0 ph\u00e2n t\u00edch t\u1ed1c \u0111\u1ed9 c\u1ee7a m\u1ed9t m\u1ea1ch \u0111i\u1ec7n c\u00f3 t\u00edn hi\u1ec7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>\u0110o bi\u00ean \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p:<\/strong> M\u00e1y hi\u1ec7n s\u00f3ng cho ph\u00e9p b\u1ea1n \u0111o \u0111\u1ed9 l\u1edbn c\u1ee7a t\u00edn hi\u1ec7u, t\u1eeb \u0111\u00f3 x\u00e1c \u0111\u1ecbnh bi\u00ean \u0111\u1ed9 v\u00e0 gi\u00e1 tr\u1ecb \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a, t\u1ed1i thi\u1ec3u v\u00e0 trung b\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Ki\u1ec3m tra nhi\u1ec5u v\u00e0 l\u1ed7i:<\/strong> B\u1eb1ng c\u00e1ch quan s\u00e1t bi\u1ec3u \u0111\u1ed3 tr\u00ean m\u00e1y hi\u1ec7n s\u00f3ng, b\u1ea1n c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra c\u00e1c t\u00edn hi\u1ec7u nhi\u1ec5u v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 lo\u1ea1i b\u1ecf ch\u00fang.<\/span><\/li>\n<\/ul>\n<h2>C\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a m\u00e1y hi\u1ec7n s\u00f3ng<\/h2>\n<h3>Panel tr\u01b0\u1edbc<\/h3>\n<figure id=\"attachment_44480\" aria-describedby=\"caption-attachment-44480\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-44480 size-full\" title=\"Panel tr\u01b0\u1edbc c\u1ee7a m\u00e1y hi\u1ec7n s\u00f3ng\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1-1.jpg\" alt=\"Panel tr\u01b0\u1edbc c\u1ee7a m\u00e1y hi\u1ec7n s\u00f3ng\" width=\"750\" height=\"400\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1-1.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1-1-300x160.jpg 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-1-1-510x272.jpg 510w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-44480\" class=\"wp-caption-text\">Panel tr\u01b0\u1edbc c\u1ee7a m\u00e1y hi\u1ec7n s\u00f3ng<\/figcaption><\/figure>\n<p><strong>M\u00e0n h\u00ecnh CRT:<\/strong> Hi\u1ec3n th\u1ecb h\u00ecnh d\u1ea1ng s\u00f3ng c\u1ee7a t\u00edn hi\u1ec7u \u0111o \u0111\u01b0\u1ee3c.<\/p>\n<ul>\n<li><strong>INTEN:<\/strong> \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng c\u1ee7a v\u1ebft tia tr\u00ean m\u00e0n h\u00ecnh.<\/li>\n<li><strong>FOCUS:<\/strong> \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 n\u00e9t c\u1ee7a v\u1ebft tia.<\/li>\n<li><strong>TRACE ROTATION:<\/strong> \u0110i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed c\u1ee7a v\u1ebft tia so v\u1edbi \u0111\u01b0\u1eddng chia v\u1ea1ch ngang.<\/li>\n<\/ul>\n<p><strong>K\u00eanh \u0111o (Vertical):<\/strong><\/p>\n<ul>\n<li><strong>CH1 v\u00e0 CH2:<\/strong> Hai k\u00eanh \u0111o \u0111\u1ed9c l\u1eadp, cho ph\u00e9p \u0111o \u0111\u1ed3ng th\u1eddi hai t\u00edn hi\u1ec7u kh\u00e1c nhau.<\/li>\n<li><strong>AC-GND-DC:<\/strong> Ch\u1ecdn ch\u1ebf \u0111\u1ed9 \u0111o AC (xuy\u00ean chi\u1ec1u), DC (m\u1ed9t chi\u1ec1u) ho\u1eb7c GND (n\u1ed1i \u0111\u1ea5t).<\/li>\n<li><strong>VOLTS\/DIV:<\/strong> \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 nh\u1ea1y c\u1ee7a k\u00eanh \u0111o, t\u1ee9c l\u00e0 s\u1ed1 v\u00f4n t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t \u00f4 chia tr\u00ean m\u00e0n h\u00ecnh.<\/li>\n<li><strong>VARIABLE:<\/strong> \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 nh\u1ea1y m\u1ed9t c\u00e1ch tinh t\u1ebf h\u01a1n.<\/li>\n<li><strong>POSITION:<\/strong> \u0110i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed c\u1ee7a v\u1ebft tia theo chi\u1ec1u d\u1ecdc.<\/li>\n<li><strong>VERT MODE:<\/strong> Ch\u1ecdn ch\u1ebf \u0111\u1ed9 hi\u1ec3n th\u1ecb: CH1, CH2, DUAL (hi\u1ec3n th\u1ecb c\u1ea3 hai k\u00eanh), ADD (c\u1ed9ng hai k\u00eanh) ho\u1eb7c SUBTRACT (tr\u1eeb hai k\u00eanh).<\/li>\n<li><strong>ALT\/CHOP:<\/strong> Ch\u1ecdn c\u00e1ch hi\u1ec3n th\u1ecb hai k\u00eanh trong ch\u1ebf \u0111\u1ed9 DUAL: lu\u00e2n phi\u00ean (Alt) ho\u1eb7c \u0111\u1ed3ng th\u1eddi (Chop).<\/li>\n<\/ul>\n<p><strong>K\u00edch ho\u1ea1t (Trigger):<\/strong><\/p>\n<ul>\n<li><strong>SOURCE:<\/strong> Ch\u1ecdn ngu\u1ed3n k\u00edch ho\u1ea1t (CH1, CH2, EXT, LINE).<\/li>\n<li><strong>SLOPE:<\/strong> Ch\u1ecdn chi\u1ec1u k\u00edch ho\u1ea1t (d\u01b0\u01a1ng ho\u1eb7c \u00e2m).<\/li>\n<li><strong>TRIGGER MODE:<\/strong> Ch\u1ecdn ch\u1ebf \u0111\u1ed9 k\u00edch ho\u1ea1t (Auto, Norm, TV-V, TV-H).<\/li>\n<\/ul>\n<p><strong>Th\u1eddi gian qu\u00e9t (Time Base):<\/strong><\/p>\n<ul>\n<li><strong>TIME\/DIV:<\/strong> \u0110i\u1ec1u ch\u1ec9nh th\u1eddi gian t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t \u00f4 chia tr\u00ean m\u00e0n h\u00ecnh theo chi\u1ec1u ngang.<\/li>\n<li><strong>SWP.VAR:<\/strong> \u0110i\u1ec1u ch\u1ec9nh th\u1eddi gian qu\u00e9t m\u1ed9t c\u00e1ch tinh t\u1ebf h\u01a1n.<\/li>\n<li><strong>POSITION:<\/strong> \u0110i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed c\u1ee7a v\u1ebft tia theo chi\u1ec1u ngang.<\/li>\n<li><strong>X10 MAG:<\/strong> Ph\u00f3ng \u0111\u1ea1i t\u00edn hi\u1ec7u theo chi\u1ec1u ngang.<\/li>\n<li><strong>CAL:<\/strong> Cung c\u1ea5p t\u00edn hi\u1ec7u hi\u1ec7u chu\u1ea9n.<\/li>\n<\/ul>\n<p><strong>C\u00e1c n\u00fat \u0111i\u1ec1u khi\u1ec3n kh\u00e1c:<\/strong><\/p>\n<ul>\n<li><strong>POWER:<\/strong> B\u1eadt\/t\u1eaft ngu\u1ed3n.<\/li>\n<li><strong>X-Y:<\/strong> Chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 X-Y \u0111\u1ec3 hi\u1ec3n th\u1ecb \u0111\u1ed3 th\u1ecb.<\/li>\n<li><strong>Z AXIS INPUT:<\/strong> \u0110\u1ea7u v\u00e0o \u0111\u1ec3 \u0111i\u1ec1u bi\u1ebfn \u0111\u1ed9 s\u00e1ng c\u1ee7a v\u1ebft tia.<\/li>\n<\/ul>\n<h3>Panel sau<\/h3>\n<ul>\n<li><strong>Z AXIS INPUT:<\/strong> \u0110\u1ea7u v\u00e0o \u0111\u1ec3 \u0111i\u1ec1u bi\u1ebfn \u0111\u1ed9 s\u00e1ng c\u1ee7a v\u1ebft tia.<\/li>\n<li><strong>CH1 SIGNAL OUTPUT:<\/strong> \u0110\u1ea7u ra t\u00edn hi\u1ec7u t\u1eeb k\u00eanh 1.<\/li>\n<li><strong>AC POWER:<\/strong> C\u1ed5ng c\u1ea5p ngu\u1ed3n AC.<\/li>\n<li><strong>FUSE:<\/strong> C\u1ea7u ch\u00ec<\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><strong>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a m\u00e1y hi\u1ec7n s\u00f3ng<\/strong><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">M\u00e1y hi\u1ec7n s\u00f3ng c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Trong \u0111i\u1ec7n t\u1eed v\u00e0 vi\u1ec5n th\u00f4ng:<\/strong> M\u00e1y hi\u1ec7n s\u00f3ng gi\u00fap x\u00e1c \u0111\u1ecbnh lo\u1ea1i t\u00edn hi\u1ec7u, t\u00ednh to\u00e1n t\u1ea7n s\u1ed1 dao \u0111\u1ed9ng v\u00e0 bi\u1ec3u di\u1ec5n t\u00edn hi\u1ec7u m\u1ea1ch \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y quan tr\u1ecdng trong vi\u1ec7c nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c d\u1ea1ng s\u00f3ng t\u00edn hi\u1ec7u kh\u00e1c nhau.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Trong gi\u00e1o d\u1ee5c:<\/strong> M\u00e1y hi\u1ec7n s\u00f3ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u1ea3ng d\u1ea1y v\u00e0 h\u1ecdc t\u1eadp c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 \u0111i\u1ec7n t\u1eed v\u00e0 t\u00edn hi\u1ec7u. N\u00f3 gi\u00fap h\u1ecdc vi\u00ean hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c d\u1ea1ng s\u00f3ng v\u00e0 c\u00e1ch \u0111o l\u01b0\u1eddng ch\u00fang.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Trong y h\u1ecdc:<\/strong> V\u1edbi c\u00e1c c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p, m\u00e1y hi\u1ec7n s\u00f3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o s\u00f3ng n\u00e3o, \u0111i\u1ec7n tim v\u00e0 c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c kh\u00e1m ch\u1eefa b\u1ec7nh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Trong c\u00f4ng vi\u1ec7c ki\u1ec3m tra b\u1ea3o tr\u00ec s\u1eeda ch\u1eefa:<\/strong> M\u00e1y hi\u1ec7n s\u00f3ng gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c l\u1ed7i v\u00e0 s\u1ef1 c\u1ed1 trong thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, t\u1eeb \u0111\u00f3 gi\u00fap qu\u00e1 tr\u00ecnh s\u1eeda ch\u1eefa v\u00e0 b\u1ea3o tr\u00ec tr\u1edf n\u00ean hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_28052\" aria-describedby=\"caption-attachment-28052\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28052 size-full\" title=\"M\u00e1y hi\u1ec7n s\u00f3ng c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-2.jpg\" alt=\"M\u00e1y hi\u1ec7n s\u00f3ng c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau\" width=\"750\" height=\"714\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-2.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-2-300x286.jpg 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2023\/08\/may-hien-song-la-gi-chuc-nang-va-ung-dung-cua-no-2-510x486.jpg 510w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-28052\" class=\"wp-caption-text\">M\u00e1y hi\u1ec7n s\u00f3ng c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">V\u1edbi nh\u1eefng \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng v\u00e0 t\u00ednh n\u0103ng phong ph\u00fa, m\u00e1y hi\u1ec7n s\u00f3ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn t\u00edn hi\u1ec7u \u0111i\u1ec7n. T\u1eeb vi\u1ec7c ph\u00e2n t\u00edch h\u00ecnh d\u1ea1ng s\u00f3ng \u0111\u1ebfn ki\u1ec3m tra v\u00e0 s\u1eeda ch\u1eefa c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, m\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi l\u00e0m vi\u1ec7c trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed v\u00e0 \u0111o l\u01b0\u1eddng.<\/span><\/p>\n<p style=\"text-align: left;\"><i>M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:<br \/>\n<\/i><strong>C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT<br \/>\n<\/strong><strong>MST: 0108733789<br \/>\n<\/strong><strong>Hotline: 0981 223 001<br \/>\n<\/strong><strong>Facebook:<\/strong>\u00a0<a href=\"http:\/\/www.fb.com\/hocvienit\" target=\"_blank\" rel=\"noopener\">www.fb.com\/hocvienit<\/a><br \/>\n<strong>\u0110\u0103ng k\u00fd k\u00eanh Youtube \u0111\u1ec3 theo d\u00f5i c\u00e1c b\u00e0i h\u1ecdc c\u1ee7a Hu\u1ea5n luy\u1ec7n vi\u00ean t\u1ed1t nh\u1ea5t:<\/strong>\u00a0<a href=\"http:\/\/bit.ly\/Youtube_HOCVIENiT\" target=\"_blank\" rel=\"noopener nofollow\">http:\/\/bit.ly\/Youtube_HOCVIENiT<\/a><br \/>\n<b>H\u1ec7 th\u1ed1ng c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o:\u00a0<\/b><a href=\"https:\/\/hocvienit.vn\/lien-he\/\" target=\"_blank\" rel=\"noopener\">https:\/\/hocvienit.vn\/lien-he\/<\/a><br \/>\n<strong><i>H\u1ecdc vi\u1ec7n IT.vn \u2013 Truy\u1ec1n ngh\u1ec1 th\u1ef1c t\u1ebf c\u00f9ng b\u1ea1n \u0111\u1ebfn th\u00e0nh c\u00f4ng!\u00a0<\/i><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u00e1y hi\u1ec7n s\u00f3ng l\u00e0 g\u00ec? D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 th\u00f4ng tin v\u1ec1 m\u00e1y hi\u1ec7n s\u00f3ng, c\u0169ng nh\u01b0 nh\u1eefng \u1ee9ng d\u1ee5ng v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3.<\/p>\n","protected":false},"author":95,"featured_media":28050,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95,94],"tags":[808],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/28049"}],"collection":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28049"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/28049\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/28050"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28049"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28049"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}