{"id":9123,"date":"2025-12-05T09:41:16","date_gmt":"2025-12-05T09:41:16","guid":{"rendered":"https:\/\/www.omch.com\/?p=9123"},"modified":"2025-12-05T09:41:17","modified_gmt":"2025-12-05T09:41:17","slug":"resolver-vs-encoder","status":"publish","type":"post","link":"https:\/\/www.omch.com\/vi\/resolver-vs-encoder\/","title":{"rendered":"B\u1ed9 gi\u1ea3i m\u00e3 so v\u1edbi b\u1ed9 m\u00e3 h\u00f3a: Nh\u1eefng th\u00f4ng tin quan tr\u1ecdng cho \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p"},"content":{"rendered":"<p>Trong l\u0129nh v\u1ef1c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p, h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ea7n xem x\u00e9t. Tuy nhi\u00ean, b\u1ea1n kh\u00f4ng th\u1ec3 \u0111i\u1ec1u khi\u1ec3n m\u1ed9t th\u1ee9 g\u00ec \u0111\u00f3 tr\u1eeb khi tr\u01b0\u1edbc ti\u00ean b\u1ea1n c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c n\u00f3. B\u1ed9 m\u00e3 h\u00f3a (encoder) v\u00e0 b\u1ed9 gi\u1ea3i m\u00e3 (resolver) th\u1ef1c hi\u1ec7n c\u00f9ng m\u1ed9t ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 l\u00e0 thi\u1ebft b\u1ecb ph\u1ea3n h\u1ed3i c\u1ee7a \u0111\u1ed9ng c\u01a1 servo, chuy\u1ec3n \u0111\u1ed5i chuy\u1ec3n \u0111\u1ed9ng c\u01a1 h\u1ecdc c\u1ee7a tr\u1ee5c t\u1eeb chuy\u1ec3n \u0111\u1ed9ng quay th\u00e0nh c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n m\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n \u0111\u1ed9ng c\u00f3 th\u1ec3 nh\u1eadn v\u00e0 x\u1eed l\u00fd. Trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1eeb c\u00e1nh tay robot \u0111\u1ebfn xe \u0111i\u1ec7n, vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t trong hai thi\u1ebft b\u1ecb n\u00e0y s\u1ebd quy\u1ebft \u0111\u1ecbnh kh\u00f4ng ch\u1ec9 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c m\u00e0 c\u00f2n c\u1ea3 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng<\/h2>\n\n\n\n<p>\u0110\u1ec3 l\u1ef1a ch\u1ecdn linh ki\u1ec7n l\u00fd t\u01b0\u1edfng cho t\u1eebng ch\u1ee9c n\u0103ng, ch\u00fang ta c\u1ea7n ph\u00e2n t\u00edch c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd chi ph\u1ed1i. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa b\u1ed9 m\u00e3 h\u00f3a (encoder) v\u00e0 b\u1ed9 gi\u1ea3i m\u00e3 (resolver) n\u1eb1m \u1edf c\u00e1ch th\u1ee9c c\u1ea3m bi\u1ebfn chuy\u1ec3n \u0111\u1ed9ng: m\u1ed9t lo\u1ea1i s\u1eed d\u1ee5ng \u0111i\u1ec7n t\u1eeb, lo\u1ea1i kia s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed9 gi\u1ea3i m\u00e3: Bi\u1ebfn \u00e1p quay t\u01b0\u01a1ng t\u1ef1<\/h3>\n\n\n\n<p>B\u1ed9 gi\u1ea3i m\u00e3 l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m ra \u0111\u1eddi t\u1eeb th\u1eddi k\u1ef3 m\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed c\u1ea7n ph\u1ea3i b\u1ec1n b\u1ec9 v\u00e0 ch\u1eafc ch\u1eafn. Th\u1ef1c ch\u1ea5t, n\u00f3 l\u00e0 m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p quay. M\u1ed9t b\u1ed9 gi\u1ea3i m\u00e3 \u0111\u1ed9ng c\u01a1 bao g\u1ed3m hai ph\u1ea7n: ph\u1ea7n stator (ph\u1ea7n \u0111\u1ee9ng y\u00ean) v\u00e0 ph\u1ea7n rotor (ph\u1ea7n quay c\u00f9ng tr\u1ee5c \u0111\u1ed9ng c\u01a1). Tuy nhi\u00ean, \u0111i\u1ec1u l\u00e0m cho c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y tr\u1edf n\u00ean \u0111\u1ed9c \u0111\u00e1o l\u00e0 ch\u00fang kh\u00f4ng ch\u1ee9a b\u1ea5t k\u1ef3 b\u1ea3ng m\u1ea1ch, ch\u1ea5t h\u00e0n hay silicon n\u00e0o. C\u00e1c th\u00e0nh ph\u1ea7n duy nh\u1ea5t m\u00e0 ch\u00fang ch\u1ee9a l\u00e0 c\u00e1c cu\u1ed9n d\u00e2y \u0111\u1ed3ng (ho\u1eb7c cu\u1ed9n c\u1ea3m), c\u00e1c l\u00e1 th\u00e9p ho\u1eb7c v\u1ecf kim lo\u1ea1i.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img alt=\"\" fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/resolver-1024x559.webp\" class=\"wp-image-9117\" style=\"width:512px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/resolver-1024x559.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/resolver-300x164.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/resolver-768x419.webp 768w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/resolver-1536x838.webp 1536w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/resolver-2048x1117.webp 2048w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/resolver-18x10.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Trong m\u1ed9t s\u1ed1 thi\u1ebft k\u1ebf, b\u1ed9 gi\u1ea3i m\u00e3 kh\u00f4ng khung \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ti\u1ebft ki\u1ec7m kh\u00f4ng gian b\u1eb1ng c\u00e1ch l\u1eafp tr\u1ef1c ti\u1ebfp l\u00ean \u0111\u1ed9ng c\u01a1. B\u1ed9 gi\u1ea3i m\u00e3 ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb. M\u1ed9t t\u00edn hi\u1ec7u xoay chi\u1ec1u tham chi\u1ebfu \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ebfn c\u00e1c cu\u1ed9n d\u00e2y r\u00f4to, v\u00e0 khi r\u00f4to quay, m\u1ed9t t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c c\u1ea3m \u1ee9ng tr\u00ean c\u00e1c cu\u1ed9n d\u00e2y th\u1ee9 c\u1ea5p. C\u00e1c cu\u1ed9n d\u00e2y th\u1ee9 c\u1ea5p \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed l\u1ec7ch 90 \u0111\u1ed9 so v\u1edbi stato v\u00e0 c\u00f3 ch\u1ee9c n\u0103ng \u0111o v\u1ecb tr\u00ed g\u00f3c c\u1ee7a r\u00f4to.<\/p>\n\n\n\n<p>Sau \u0111\u00f3, m\u1ed9t cu\u1ed9n d\u00e2y th\u1ee9 c\u1ea5p t\u1ea1o ra \u0111i\u1ec7n \u00e1p t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi h\u00e0m sin c\u1ee7a g\u00f3c, trong khi cu\u1ed9n d\u00e2y c\u00f2n l\u1ea1i t\u1ea1o ra \u0111i\u1ec7n \u00e1p t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi h\u00e0m cosin. D\u1ef1a tr\u00ean c\u00e1c t\u00edn hi\u1ec7u \u0111\u1ea7u ra sin v\u00e0 cosin n\u00e0y, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed hi\u1ec7n t\u1ea1i c\u1ee7a r\u00f4to. Qu\u00e1 tr\u00ecnh \u01b0\u1edbc l\u01b0\u1ee3ng n\u00e0y di\u1ec5n ra li\u00ean t\u1ee5c, kh\u00f4ng qua x\u1eed l\u00fd s\u1ed1, v\u00e0 t\u1ea1o ra m\u1ed9t t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed9 m\u00e3 h\u00f3a: C\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n t\u1eed k\u1ef9 thu\u1eadt s\u1ed1<\/h3>\n\n\n\n<p>N\u1ebfu b\u1ed9 gi\u1ea3i m\u00e3 l\u00e0 m\u1ed9t \u201cc\u1ed7 m\u00e1y ch\u1ee7 l\u1ef1c\u201d analog, th\u00ec b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc l\u1ea1i l\u00e0 nh\u1eefng thi\u1ebft b\u1ecb k\u1ef9 thu\u1eadt s\u1ed1 ch\u00ednh x\u00e1c. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang d\u1ef1a tr\u00ean s\u1ef1 gi\u00e1n \u0111o\u1ea1n c\u1ee7a \u00e1nh s\u00e1ng. B\u00ean trong b\u1ed9 m\u00e3 h\u00f3a quay, b\u1ea1n s\u1ebd th\u1ea5y m\u1ed9t \u0111\u0129a m\u00e3 \u2014 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u1ee7y tinh ho\u1eb7c nh\u1ef1a cao c\u1ea5p \u2014 \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o tr\u1ee5c quay. \u0110\u0129a n\u00e0y \u0111\u01b0\u1ee3c kh\u1eafc h\u00e0ng ngh\u00ecn \u0111\u01b0\u1eddng k\u1ebb si\u00eau nh\u1ecf, t\u1ea1o th\u00e0nh m\u1ed9t m\u1eabu g\u1ed3m c\u00e1c khe trong su\u1ed1t v\u00e0 m\u1edd \u0111\u1ee5c. M\u1ed9t ngu\u1ed3n s\u00e1ng LED n\u1eb1m \u1edf m\u1ed9t b\u00ean c\u1ee7a \u0111\u0129a, v\u00e0 m\u1ed9t m\u1ea3ng c\u1ea3m bi\u1ebfn quang n\u1eb1m \u1edf b\u00ean kia.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img alt=\"\" decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/encoder.webp\" class=\"wp-image-9115\" style=\"width:512px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/encoder.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/encoder-300x164.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/encoder-768x419.webp 768w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/encoder-18x10.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Khi \u0111\u0129a quay, n\u00f3 chia ch\u00f9m \u00e1nh s\u00e1ng th\u00e0nh c\u00e1c tia s\u00e1ng l\u00f3e l\u00ean li\u00ean t\u1ee5c. C\u1ea3m bi\u1ebfn ph\u00e1t hi\u1ec7n c\u00e1c tia s\u00e1ng n\u00e0y v\u00e0 chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh c\u00e1c xung \u0111i\u1ec7n. H\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed b\u00ean trong (m\u1ed9t chip ASIC) ngay l\u1eadp t\u1ee9c x\u1eed l\u00fd c\u00e1c xung n\u00e0y th\u00e0nh t\u00edn hi\u1ec7u \u0111\u1ea7u ra k\u1ef9 thu\u1eadt s\u1ed1 r\u00f5 r\u00e0ng \u2014 th\u01b0\u1eddng l\u00e0 m\u1ed9t chu\u1ed7i s\u00f3ng vu\u00f4ng (0 v\u00e0 1).<\/p>\n\n\n\n<p>B\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc cung c\u1ea5p m\u1ed9t t\u00edn hi\u1ec7u s\u1ed1 tr\u1ef1c ti\u1ebfp m\u00e0 c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n \u0111\u1ea1i c\u00f3 th\u1ec3 x\u1eed l\u00fd ngay l\u1eadp t\u1ee9c, mang l\u1ea1i ph\u1ea3n h\u1ed3i c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao, chia m\u1ed9t v\u00f2ng quay th\u00e0nh h\u00e0ng tri\u1ec7u \u0111\u01a1n v\u1ecb \u0111\u1ebfm ch\u00ednh x\u00e1c. B\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc cung c\u1ea5p m\u1ed9t t\u00edn hi\u1ec7u s\u1ed1 tr\u1ef1c ti\u1ebfp m\u00e0 c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n \u0111\u1ea1i c\u00f3 th\u1ec3 x\u1eed l\u00fd ngay l\u1eadp t\u1ee9c, mang l\u1ea1i ph\u1ea3n h\u1ed3i c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao, chia m\u1ed9t v\u00f2ng quay th\u00e0nh h\u00e0ng tri\u1ec7u \u0111\u01a1n v\u1ecb \u0111\u1ebfm ch\u00ednh x\u00e1c. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t l\u1ee3i th\u1ebf r\u00f5 r\u1ec7t so v\u1edbi c\u00e1c b\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng \u0111\u01a1n gi\u1ea3n, v\u1ed1n c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh \u0111\u1ecbnh v\u1ecb l\u1ea1i sau khi m\u1ea5t \u0111i\u1ec7n.<\/p>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 so s\u00e1nh b\u1ed9 m\u00e3 h\u00f3a v\u00e0 b\u1ed9 gi\u1ea3i m\u00e3 nh\u01b0 sau: b\u1ed9 gi\u1ea3i m\u00e3 ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nh\u01b0 nh\u1eefng chi\u1ebfc \u0111\u1ed3ng h\u1ed3 \u0111eo tay c\u01a1 truy\u1ec1n th\u1ed1ng. Ch\u00fang \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb nhi\u1ec1u l\u1edbp l\u00f2 xo v\u00e0 b\u00e1nh r\u0103ng ph\u1ee9c t\u1ea1p, n\u1eb7ng (b\u1eb1ng \u0111\u1ed3ng v\u00e0 s\u1eaft). Ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ec1n b\u1ec9 v\u00e0 ho\u00e0n to\u00e0n d\u1ef1a tr\u00ean c\u00e1c nguy\u00ean l\u00fd c\u01a1 h\u1ecdc, v\u1eadt l\u00fd. Ng\u01b0\u1ee3c l\u1ea1i, b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc gi\u1ed1ng nh\u01b0 m\u1ed9t chi\u1ebfc \u0111\u1ed3ng h\u1ed3 th\u00f4ng minh. Nh\u1eefng k\u1ef3 quan hi\u1ec7n \u0111\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c trang b\u1ecb vi x\u1eed l\u00fd, c\u1ea3m bi\u1ebfn v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i. Ch\u00fang c\u00f3 v\u00f4 s\u1ed1 t\u00ednh n\u0103ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n. T\u1ea5t nhi\u00ean, \u0111i\u1ec1u \u0111\u00f3 ch\u1ec9 \u0111\u00fang cho \u0111\u1ebfn khi b\u1ea1n \u0111\u1eadp ch\u00fang v\u00e0o m\u1ed9t t\u1ea3ng \u0111\u00e1. Kh\u00f4ng ch\u1ec9 c\u00e1c c\u1ea3m bi\u1ebfn b\u1ecb h\u1ecfng, m\u00e0 \u0111\u0129a m\u00e3 c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng b\u1ecb n\u1ee9t do l\u1ef1c qu\u00e1n t\u00ednh t\u1eeb m\u1ed9t c\u00fa va ch\u1ea1m m\u1ea1nh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 gi\u1ea3i m\u00e3 so v\u1edbi b\u1ed9 m\u00e3 h\u00f3a: C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt hi\u1ec7u su\u1ea5t ch\u00ednh<\/h2>\n\n\n\n<p>\u0110\u1ec3 chuy\u1ec3n t\u1eeb l\u00fd thuy\u1ebft sang \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt, ch\u00fang ta c\u1ea7n c\u00f3 c\u00e1c s\u1ed1 li\u1ec7u th\u1ef1c t\u1ebf, c\u1ee5 th\u1ec3 l\u00e0 c\u00e1c s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, nh\u01b0 \u0111\u01b0\u1ee3c minh ch\u1ee9ng qua b\u1ea3ng so s\u00e1nh c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt d\u01b0\u1edbi \u0111\u00e2y gi\u1eefa c\u00e1c lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a (encoder) v\u00e0 b\u1ed9 gi\u1ea3i m\u00e3 (resolver) ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>T\u00ednh n\u0103ng<\/td><td>Gi\u1ea3i quy\u1ebft<\/td><td>B\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc<\/td><\/tr><tr><td>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/td><td>C\u1ea3m \u1ee9ng (T\u01b0\u01a1ng t\u1ef1)<\/td><td>Quang \u0111i\u1ec7n (K\u1ef9 thu\u1eadt s\u1ed1)<\/td><\/tr><tr><td>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a<\/td><td>T\u1eeb 155\u00b0C \u0111\u1ebfn 200\u00b0C+<\/td><td>85\u00b0C \u0111\u1ebfn 100\u00b0C (120\u00b0C - ch\u00edn t\u00e1i)<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng s\u1ed1c<\/td><td>Cao (200g tr\u1edf l\u00ean)<\/td><td>Th\u1ea5p \u0111\u1ebfn trung b\u00ecnh (50g \u2013 100g)<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng ch\u1ecbu rung<\/td><td>Xu\u1ea5t s\u1eafc (20g \u2013 40g)<\/td><td>Trung b\u00ecnh (10g \u2013 20g)<\/td><\/tr><tr><td>T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a (RPM)<\/td><td>Gi\u1edbi h\u1ea1n (10.000 \u2013 20.000 v\u00f2ng\/ph\u00fat)<\/td><td>Cao (th\u01b0\u1eddng tr\u00ean 100.000 v\u00f2ng\/ph\u00fat)<\/td><\/tr><tr><td>\u0110\u1ed9 ph\u00e2n gi\u1ea3i\/\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td><td>Trung b\u00ecnh (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 10\u201314 bit)<\/td><td>R\u1ea5t cao (12\u201324+ bit)<\/td><\/tr><tr><td>T\u00edn hi\u1ec7u \u0111\u1ea7u ra<\/td><td>\u0110i\u1ec7n \u00e1p xoay chi\u1ec1u sin\/cosin<\/td><td>T\u00edn hi\u1ec7u s\u1ed1 (TTL, HTL) ho\u1eb7c giao th\u1ee9c (SSI, EtherCAT)<\/td><\/tr><tr><td>R\u1ee7i ro h\u1ecfng h\u00f3c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed<\/td><td>G\u1ea7n b\u1eb1ng kh\u00f4ng (Linh ki\u1ec7n th\u1ee5 \u0111\u1ed9ng)<\/td><td>Trung b\u00ecnh (Th\u00e0nh ph\u1ea7n ho\u1ea1t t\u00ednh)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>D\u1eef li\u1ec7u \u0111\u00e3 ch\u1ec9 ra m\u1ed9t ranh gi\u1edbi r\u00f5 r\u00e0ng. N\u1ebfu b\u1ea1n c\u00f3 m\u1ed9t \u1ee9ng d\u1ee5ng m\u00e0 \u0111\u1ed9ng c\u01a1 ph\u1ea3i quay \u1edf t\u1ed1c \u0111\u1ed9 50.000 v\u00f2ng\/ph\u00fat, c\u00e1c \u0111\u1eb7c t\u00ednh tr\u1edf kh\u00e1ng c\u1ee7a b\u1ed9 gi\u1ea3i m\u00e3 resolver s\u1ebd d\u1eabn \u0111\u1ebfn suy gi\u1ea3m t\u00edn hi\u1ec7u, bu\u1ed9c b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a encoder nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p cu\u1ed1i c\u00f9ng. M\u1eb7t kh\u00e1c, n\u1ebfu nhi\u1ec7t \u0111\u1ed9 v\u1ecf \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n l\u00e0 140\u00b0C, th\u00ec c\u00e1c chip silicon trong b\u1ed9 m\u00e3 h\u00f3a encoder s\u1ebd b\u1ecb ch\u00e1y. Do \u0111\u00f3, c\u1ea3m bi\u1ebfn resolver s\u1ebd l\u00e0 l\u1ef1a ch\u1ecdn duy nh\u1ea5t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec khi\u1ebfn b\u1ed9 gi\u1ea3i m\u00e3 v\u00e0 b\u1ed9 m\u00e3 h\u00f3a tr\u1edf n\u00ean n\u1ed5i b\u1eadt?<\/h2>\n\n\n\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa b\u1ed9 gi\u1ea3i m\u00e3 (resolver) v\u00e0 b\u1ed9 m\u00e3 h\u00f3a (encoder) kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 xem c\u00e1i n\u00e0o t\u1ed1t h\u01a1n. \u0110\u00f3 \u0111\u01a1n gi\u1ea3n ch\u1ec9 l\u00e0 v\u1ea5n \u0111\u1ec1 gi\u1eefa vi\u1ec7c t\u1ed3n t\u1ea1i trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t (t\u1ee9c l\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ef1c \u0111oan) d\u00f9 hi\u1ec7u su\u1ea5t k\u00e9m, hay ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c v\u00e0 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00fd do c\u1ea7n \u0111\u1ed9 b\u1ec1n b\u1ec9 (Resolver)<\/h3>\n\n\n\n<p>Thi\u1ebft k\u1ebf c\u1ed5 \u0111i\u1ec3n c\u1ee7a b\u1ed9 gi\u1ea3i m\u00e3, v\u1edbi c\u1ea5u tr\u00fac ch\u1ed1ng nhi\u1ec5u \u0111i\u1ec7n t\u1eed, kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf v\u01b0\u1ee3t tr\u1ed9i m\u00e0 c\u00f2n gi\u00fap n\u00f3 tr\u1edf th\u00e0nh nh\u00e0 v\u00f4 \u0111\u1ecbch kh\u00f4ng th\u1ec3 tranh c\u00e3i v\u1ec1 \u0111\u1ed9 b\u1ec1n c\u1ef1c cao. Do kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn n\u00e0o c\u00f3 th\u1ec3 h\u1ecfng h\u00f3c v\u00ec nhi\u1ec7t \u0111\u1ed9 cao hay b\u1ee9c x\u1ea1 (t\u1ee9c l\u00e0 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t), b\u1ed9 gi\u1ea3i m\u00e3 lu\u00f4n \u0111\u1ee9ng \u0111\u1ea7u v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> M\u1ed9t b\u1ed9 gi\u1ea3i m\u00e3 ti\u00eau chu\u1ea9n ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c \u1edf nhi\u1ec7t \u0111\u1ed9 kho\u1ea3ng 155\u00b0C. C\u00e1c m\u1eabu chuy\u00ean d\u1ee5ng th\u1eadm ch\u00ed c\u00f2n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u1ea1t t\u1edbi 200\u00b0C ho\u1eb7c cao h\u01a1n trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, \u0111\u00e2y \u0111\u01b0\u1ee3c coi l\u00e0 gi\u1edbi h\u1ea1n t\u1ed1i \u0111a. \u0110i\u1ec1u n\u00e0y \u0111\u01a1n gi\u1ea3n l\u00e0 do \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t v\u00e0 d\u00e2y d\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u1ea5u tr\u00fac \u0111\u1ed3ng.<\/li>\n\n\n\n<li><strong>Rung \u0111\u1ed9ng v\u00e0 va \u0111\u1eadp:<\/strong> B\u1ed9 gi\u1ea3i m\u00e3 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c c\u00fa s\u1ed1c c\u01a1 h\u1ecdc (nh\u01b0 tr\u00ean 200g) v\u00e0 rung \u0111\u1ed9ng m\u1ea1nh. Thi\u1ebft b\u1ecb kh\u00f4ng c\u00f3 \u0111\u0129a th\u1ee7y tinh d\u1ec5 v\u1ee1 c\u0169ng nh\u01b0 kh\u00f4ng c\u00f3 c\u00e1c m\u1ed1i h\u00e0n d\u1ec5 b\u1ecb \u0111\u1ee9t g\u00e3y.<\/li>\n\n\n\n<li><strong>C\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m:<\/strong> T\u1eeb tr\u01b0\u1eddng kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi d\u1ea7u, m\u1ee1, \u0111\u1ed9 \u1ea9m hay b\u1ee5i. B\u1ed9 gi\u1ea3i m\u00e3 v\u1eabn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng ngay c\u1ea3 khi b\u1ecb ng\u1eadp trong d\u1ea7u. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp b\u00ean trong v\u1ecf \u0111\u1ed9ng c\u01a1 \u0111\u1ec3 theo d\u00f5i v\u1ecb tr\u00ed tr\u1ee5c.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00fd do ch\u1ecdn \u0111\u1ed9 ch\u00ednh x\u00e1c (B\u1ed9 m\u00e3 h\u00f3a)<\/h3>\n\n\n\n<p>D\u1eef li\u1ec7u c\u00e0ng ch\u00ednh x\u00e1c th\u00ec b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc s\u1ebd c\u00e0ng k\u00e9m b\u1ec1n.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c:<\/strong> C\u00f4ng ngh\u1ec7 quang h\u1ecdc s\u1ebd c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao h\u01a1n nhi\u1ec1u. \u0110\u1ed9 ph\u00e2n gi\u1ea3i c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc cao h\u01a1n so v\u1edbi b\u1ed9 gi\u1ea3i m\u00e3 c\u01a1 kh\u00ed. B\u1ed9 gi\u1ea3i m\u00e3 c\u01a1 kh\u00ed b\u1ecb m\u1ea5t \u0111\u1ed9 ch\u00ednh x\u00e1c do \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u01a1 c\u1ea5u cu\u1ed9n d\u00e2y c\u01a1 kh\u00ed v\u00e0 nhi\u1ec5u t\u00edn hi\u1ec7u. B\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc kh\u00f4ng g\u1eb7p v\u1ea5n \u0111\u1ec1 n\u00e0y v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ed9 ph\u00e2n gi\u1ea3i 20 bit \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 r\u00f5 r\u00e0ng c\u1ee7a t\u00edn hi\u1ec7u:<\/strong> T\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c s\u1ed1 h\u00f3a ngay l\u1eadp t\u1ee9c, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ee9c \u0111\u1ed9 ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) s\u1ebd gi\u1ea3m \u0111i. Do \u0111\u00f3, so v\u1edbi b\u1ed9 gi\u1ea3i m\u00e3 (resolver), b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 t\u1ed1t h\u01a1n trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u00edn hi\u1ec7u.<\/li>\n\n\n\n<li><strong>Ph\u1ea3n \u1ee9ng \u0111\u1ed9ng:<\/strong> \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng, b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc s\u1ebd \u0111\u01b0\u1ee3c \u01b0u ti\u00ean h\u01a1n b\u1ed9 gi\u1ea3i m\u00e3 v\u00ec n\u00f3 c\u00f3 m\u1eadt \u0111\u1ed9 ph\u1ea3n h\u1ed3i cao h\u01a1n v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ed1 v\u1ea1ch cao h\u01a1n, gi\u00fap ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ngo\u00e0i m\u1ee9c gi\u00e1 ni\u00eam y\u1ebft: Ph\u00e2n t\u00edch chi ph\u00ed th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<p>Khi m\u1ed9t gi\u00e1m \u0111\u1ed1c mua s\u1eafm xem x\u00e9t B\u1ea3ng danh m\u1ee5c v\u1eadt t\u01b0 (BOM), m\u1ed9t trong nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 ch\u1ec9 so s\u00e1nh chi ph\u00ed c\u1ee7a m\u1ed9t c\u1ea3m bi\u1ebfn trong BOM. M\u1ed9t c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u00e0 t\u1ed5ng th\u1ec3 h\u01a1n s\u1ebd d\u1eabn \u0111\u1ebfn quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t h\u01a1n d\u1ef1a tr\u00ean T\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO). Trong b\u1ed1i c\u1ea3nh so s\u00e1nh chi ph\u00ed gi\u1eefa b\u1ed9 gi\u1ea3i m\u00e3 (resolver) v\u00e0 b\u1ed9 m\u00e3 h\u00f3a (encoder), vi\u1ec7c xem x\u00e9t v\u01b0\u1ee3t ra ngo\u00e0i m\u1ee9c gi\u00e1 ni\u00eam y\u1ebft l\u00e0 \u0111i\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n<p>Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc ch\u1ea5t l\u01b0\u1ee3ng cao c\u00f3 gi\u00e1 cao h\u01a1n, do \u0111\u00f3 chi ph\u00ed s\u1ea3n xu\u1ea5t c\u0169ng \u0111\u1eaft h\u01a1n so v\u1edbi b\u1ed9 gi\u1ea3i m\u00e3 ti\u00eau chu\u1ea9n. M\u1ed9t b\u1ed9 gi\u1ea3i m\u00e3 \u0111\u01a1n gi\u1ea3n c\u00f3 gi\u00e1 b\u00e1n l\u1ebb th\u1ea5p h\u01a1n, v\u00ec v\u1eady chi\u1ebfm \u01b0u th\u1ebf v\u1ec1 m\u1eb7t gi\u00e1 c\u1ea3.<\/p>\n\n\n\n<p>R\u1ee7i ro l\u1edbn nh\u1ea5t n\u1eb1m \u1edf kh\u00e2u t\u00edch h\u1ee3p. B\u1ed9 gi\u1ea3i m\u00e3 (resolver) ph\u00e1t ra t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 \u201cth\u00f4\u201d m\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ec3 \u0111\u1ecdc tr\u1ef1c ti\u1ebfp. B\u1ed9 truy\u1ec1n \u0111\u1ed9ng c\u1ee7a b\u1ea1n c\u1ea7n t\u00edch h\u1ee3p b\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u1eeb Resolver sang K\u1ef9 thu\u1eadt s\u1ed1 (R\/D), v\u1ed1n th\u01b0\u1eddng l\u00e0 t\u00ednh n\u0103ng cao c\u1ea5p tr\u00ean b\u1ed9 truy\u1ec1n \u0111\u1ed9ng servo ho\u1eb7c m\u1ed9t th\u1ebb m\u1edf r\u1ed9ng \u0111\u1eaft ti\u1ec1n. Ngo\u00e0i ra, b\u1ed9 gi\u1ea3i m\u00e3 c\u1ea7n s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng c\u00e1p nhi\u1ec1u c\u1eb7p, xo\u1eafn v\u00e0 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 kh\u00f4ng b\u1ecb nhi\u1ec5u trong c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i.<\/p>\n\n\n\n<p>M\u1eb7t kh\u00e1c, b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc t\u1ea1o ra t\u00edn hi\u1ec7u s\u1ed1 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c. Thi\u1ebft b\u1ecb n\u00e0y k\u1ebft n\u1ed1i d\u1ec5 d\u00e0ng v\u1edbi c\u00e1c c\u1ed5ng \u0111\u1ea7u v\u00e0o ti\u00eau chu\u1ea9n c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea7n c\u1ee9ng hay ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng \u0111\u1eaft ti\u1ec1n \u0111\u1ec3 gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u ho\u1eb7c c\u00e1c bi\u1ec7n ph\u00e1p kh\u1eed nhi\u1ec5u b\u1ed5 sung. V\u00ec l\u00fd do n\u00e0y, b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc th\u01b0\u1eddng gi\u00fap gi\u1ea3m chi ph\u00ed h\u1ec7 th\u1ed1ng t\u1ed5ng th\u1ec3 trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p n\u00f3i chung, do ch\u00fang \u0111\u01a1n gi\u1ea3n h\u00f3a ki\u1ebfn tr\u00fac v\u00e0 thi\u1ebft k\u1ebf t\u1ed5ng th\u1ec3 \u2014 gi\u1ea3 s\u1eed r\u1eb1ng ph\u1ea7n c\u1ee9ng c\u00f3 gi\u00e1 th\u00e0nh cao h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p: Resolver so v\u1edbi Encoder<\/h2>\n\n\n\n<p>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt m\u00e0 ch\u00fang ta \u0111\u00e3 th\u1ea3o lu\u1eadn \u0111\u00e3 d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e2n chia t\u1ef1 nhi\u00ean c\u1ee7a th\u1ecb tr\u01b0\u1eddng trong ng\u00e0nh n\u00e0y d\u1ef1a tr\u00ean nh\u1eefng nhu c\u1ea7u kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng c\u1ee7a xe \u0111i\u1ec7n: L\u1ee3i \u00edch c\u1ee7a b\u1ed9 gi\u1ea3i m\u00e3<\/h3>\n\n\n\n<p>Khi xem x\u00e9t c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed n\u00e0o c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t nh\u1ea5t, \u0111\u1ed9ng c\u01a1 truy\u1ec1n \u0111\u1ed9ng c\u1ee7a xe \u0111i\u1ec7n (EV) \u0111\u1ee9ng \u0111\u1ea7u danh s\u00e1ch. \u0110\u1ed9ng c\u01a1 n\u00e0y ph\u1ea3i ch\u1ecbu c\u00e1c c\u00fa s\u1ed1c do \u1ed5 g\u00e0, rung \u0111\u1ed9ng t\u1eeb m\u1eb7t \u0111\u01b0\u1eddng v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao do d\u00f2ng \u0111i\u1ec7n m\u1ea1nh c\u0169ng nh\u01b0 qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t c\u1ea3m bi\u1ebfn, v\u00e0 t\u00ecnh tr\u1ea1ng n\u00e0y c\u00e0ng tr\u1edf n\u00ean nghi\u00eam tr\u1ecdng h\u01a1n do c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t s\u00e2u b\u00ean trong c\u1ea5u tr\u00fac \u0111\u1ed9ng c\u01a1.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img alt=\"\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/electric-vehicle.webp\" class=\"wp-image-9114\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/electric-vehicle.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/electric-vehicle-300x225.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/electric-vehicle-768x576.webp 768w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/12\/electric-vehicle-16x12.webp 16w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t n\u00e0y, c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng s\u1ebd th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady, b\u1edfi v\u00ec n\u1ebfu kh\u00f4ng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra nguy hi\u1ec3m tr\u00ean \u0111\u01b0\u1eddng do khi\u1ebfn xe \u0111i\u1ec7n (EV) kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng. \u0110i\u1ec1u n\u00e0y gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t xe \u0111i\u1ec7n (EV) l\u1ea1i l\u1ef1a ch\u1ecdn b\u1ed9 gi\u1ea3i m\u00e3 (resolver): ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng b\u1ec1n b\u1ec9 trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n m\u00e0 b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc s\u1ebd h\u1ecfng ch\u1ec9 sau v\u00e0i ph\u00fat. B\u1ed9 gi\u1ea3i m\u00e3 (resolver) \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 l\u00e0 c\u00f3 c\u1ea5u t\u1ea1o gi\u1ed1ng nh\u01b0 m\u1ed9t \u2018chi\u1ebfc xe t\u0103ng\u2019, t\u00edn hi\u1ec7u ph\u1ea3n h\u1ed3i v\u1ecb tr\u00ed \u0111\u1ed9ng c\u01a1 c\u1ee7a ch\u00fang lu\u00f4n \u1ed5n \u0111\u1ecbnh mi\u1ec5n l\u00e0 tr\u1ee5c \u0111\u1ed9ng c\u01a1 v\u1eabn quay.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">CNC v\u00e0 robot: L\u1ee3i \u00edch c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc<\/h3>\n\n\n\n<p>Trong gia c\u00f4ng b\u1eb1ng \u0111i\u1ec1u khi\u1ec3n s\u1ed1 m\u00e1y t\u00ednh (CNC) v\u00e0 h\u1ec7 th\u1ed1ng robot s\u00e1u tr\u1ee5c th\u1ef1c hi\u1ec7n c\u00f4ng \u0111o\u1ea1n n\u00e0y, vi\u1ec7c \u0111\u1ea3m b\u1ea3o an to\u00e0n ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u00f2n l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u. Thay v\u00e0o \u0111\u00f3, \u01b0u ti\u00ean n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh x\u00e1c tr\u00ean c\u00e1c d\u00e2y chuy\u1ec1n l\u1eafp r\u00e1p.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n:<\/strong> \u0110\u01b0\u1eddng cong t\u1ed1c \u0111\u1ed9 ti\u1ebfn dao c\u1ee7a m\u00e1y CNC ph\u1ea3i ch\u00ednh x\u00e1c khi gia c\u00f4ng khu\u00f4n \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh. B\u1ea5t k\u1ef3 s\u1ef1 sai l\u1ec7ch n\u00e0o so v\u1edbi t\u1ed1c \u0111\u1ed9 ti\u1ebfn dao \u0111\u00e3 l\u1eadp tr\u00ecnh \u0111\u1ec1u s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng g\u1ee3n s\u00f3ng tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i. B\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ed9 truy\u1ec1n \u0111\u1ed9ng servo c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec t\u1ed1c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh.<\/li>\n\n\n\n<li><strong>\u0110\u1ecbnh v\u1ecb:<\/strong> C\u00e1nh tay robot ph\u1ea3i duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c d\u01b0\u1edbi micromet khi \u0111\u1eb7t chip l\u00ean b\u1ea3ng m\u1ea1ch. Vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c khi gi\u1eef nh\u01b0 v\u1eady l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c do m\u1ee9c nhi\u1ec5u n\u1ec1n t\u01b0\u01a1ng t\u1ef1 c\u1ee7a b\u1ed9 gi\u1ea3i m\u00e3 (resolver). \u0110\u1ed1i v\u1edbi m\u1ee9c \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng h\u00f3a n\u00e0y, b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc mang l\u1ea1i kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n \u1ed5n \u0111\u1ecbnh v\u00e0 v\u00f2ng ph\u1ea3n h\u1ed3i ch\u00ednh x\u00e1c c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Xu h\u01b0\u1edbng th\u1ecb tr\u01b0\u1eddng: S\u1ef1 tr\u1ed7i d\u1eady c\u1ee7a c\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf t\u1eeb t\u00ednh<\/h2>\n\n\n\n<p>Trong v\u00e0i th\u1eadp k\u1ef7 qua, c\u00e1c nghi\u00ean c\u1ee9u th\u1ecb tr\u01b0\u1eddng m\u1edbi nh\u1ea5t \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng vi\u1ec7c ch\u1ec9 c\u00f3 hai l\u1ef1a ch\u1ecdn ch\u1ee7 y\u1ebfu l\u00e0 b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc v\u00e0 b\u1ed9 gi\u1ea3i m\u00e3 g\u00f3c l\u00e0 ch\u01b0a t\u1ed1i \u01b0u. V\u1edbi nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 hi\u1ec7u \u1ee9ng Hall v\u00e0 AMR (\u0110i\u1ec7n tr\u1edf t\u1eeb d\u1ecb h\u01b0\u1edbng), ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u00e3 b\u1eaft \u0111\u1ea7u \u01b0a chu\u1ed9ng b\u1ed9 m\u00e3 h\u00f3a t\u1eeb t\u00ednh (v\u00e0 \u0111\u00f4i khi l\u00e0 b\u1ed9 m\u00e3 h\u00f3a \u0111i\u1ec7n dung) nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p c\u00e2n b\u1eb1ng gi\u1eefa c\u00e1c lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a.<\/p>\n\n\n\n<p>C\u00e1c doanh nghi\u1ec7p d\u1eabn \u0111\u1ea7u trong l\u0129nh v\u1ef1c xe \u0111i\u1ec7n nh\u01b0 Tesla v\u00e0 BYD, c\u00f9ng c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng nh\u01b0 Universal Robots v\u00e0 Yaskawa, \u0111ang \u0111i \u0111\u1ea7u trong ng\u00e0nh khi thay th\u1ebf c\u00e1c b\u1ed9 gi\u1ea3i m\u00e3 c\u1ee1 l\u1edbn b\u1eb1ng c\u00e1c c\u1ea3m bi\u1ebfn t\u1eeb t\u00ednh thu nh\u1ecf. H\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i t\u1eeb t\u00ednh 10\u201320 bit \u0111ang gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc v\u00e0 c\u1eaft gi\u1ea3m chi ph\u00ed t\u1edbi 15% m\u00e0 kh\u00f4ng l\u00e0m suy gi\u1ea3m hi\u1ec7u su\u1ea5t. \u0110i\u1ec1u n\u00e0y ch\u1ee9ng minh r\u1eb1ng c\u00f4ng ngh\u1ec7 t\u1eeb t\u00ednh l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u v\u00e0 h\u1ee3p l\u00fd cho nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, trong l\u0129nh v\u1ef1c h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, s\u1ef1 thay \u0111\u1ed5i n\u00e0y l\u1ea1i \u0111i ng\u01b0\u1ee3c l\u1ea1i xu h\u01b0\u1edbng chung. Do t\u00ednh ch\u1ea5t kh\u1eafc nghi\u1ec7t c\u1ee7a c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u1ee9ng d\u1ee5ng, b\u1ed9 gi\u1ea3i m\u00e3 v\u1eabn \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i. C\u00e1c nhi\u1ec7m v\u1ee5 li\u00ean quan \u0111\u1ebfn th\u00e1ch th\u1ee9c v\u1ec1 nhi\u1ec7t \u0111\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 ho\u1ea1t \u0111\u1ed9ng trong kho\u1ea3ng t\u1eeb -55\u00b0C \u0111\u1ebfn +180\u00b0C, ho\u1eb7c y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb 0,1\u00b0C tr\u1edf l\u00ean, v\u1eabn s\u1eed d\u1ee5ng b\u1ed9 gi\u1ea3i m\u00e3. C\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf d\u1ef1a tr\u00ean t\u1eeb t\u00ednh, m\u1eb7c d\u00f9 v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c ch\u1ee9ng minh v\u1ec1 kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng \u0111\u1ea1i tr\u00e0 trong c\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi an to\u00e0n bay, hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn<\/h2>\n\n\n\n<p>Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, vi\u1ec7c c\u00e2n nh\u1eafc c\u00e1c y\u1ebfu t\u1ed1 \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng b\u1edfi m\u1ed9t b\u1ed9 tham s\u1ed1 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111i \u0111\u1ebfn k\u1ebft lu\u1eadn nh\u1eb1m \u0111\u01b0a ra l\u1ef1a ch\u1ecdn s\u00e1ng su\u1ed1t. So s\u00e1nh gi\u1eefa b\u1ed9 m\u00e3 h\u00f3a v\u00e0 b\u1ed9 gi\u1ea3i m\u00e3 \u1edf \u0111\u00e2y kh\u00f4ng nh\u1eb1m \u00e1m ch\u1ec9 s\u1ef1 l\u1ed7i th\u1eddi, m\u00e0 l\u00e0 \u0111\u1ec3 m\u00f4 t\u1ea3 m\u1ee9c \u0111\u1ed9 chuy\u00ean bi\u1ec7t h\u00f3a c\u1ea7n thi\u1ebft. H\u00e3y s\u1eed d\u1ee5ng Ma tr\u1eadn Quy\u1ebft \u0111\u1ecbnh 3 B\u01b0\u1edbc d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb ph\u1ea3n h\u1ed3i ph\u00f9 h\u1ee3p nh\u1ea5t cho \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n v\u00e0 lo\u1ea1i b\u1ecf nh\u1eefng th\u00f4ng tin kh\u00f4ng c\u1ea7n thi\u1ebft trong qu\u00e1 tr\u00ecnh n\u00e0y:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>B\u01b0\u1edbc<\/td><td>Y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh<\/td><td>C\u00e2u h\u1ecfi then ch\u1ed1t<\/td><td>N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 C\u00d3<\/td><td>N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 KH\u00d4NG<\/td><\/tr><tr><td>1<\/td><td>Nhi\u1ec7t \u0111\u1ed9<\/td><td>Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng v\u01b0\u1ee3t qu\u00e1 120\u00b0C (248\u00b0F) kh\u00f4ng?<\/td><td>Ch\u1ecdn \u201cGi\u1ea3i quy\u1ebft\u201d<br>(Kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed n\u00e0o c\u00f3 th\u1ec3 h\u1ecfng h\u00f3c)<\/td><td>Ti\u1ebfp t\u1ee5c sang B\u01b0\u1edbc 2<\/td><\/tr><tr><td>2<\/td><td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td><td>Qu\u00fd v\u1ecb c\u00f3 y\u00eau c\u1ea7u \u0111\u1ecbnh v\u1ecb \u1edf m\u1ee9c nanomet hay t\u1ed1c \u0111\u1ed9 kh\u00f4ng dao \u0111\u1ed9ng kh\u00f4ng?<\/td><td>Ch\u1ecdn b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc<br>(\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a thang \u0111o k\u00ednh kh\u00f4ng th\u1ec3 so s\u00e1nh \u0111\u01b0\u1ee3c)<\/td><td>Ti\u1ebfp t\u1ee5c sang B\u01b0\u1edbc 3<\/td><\/tr><tr><td>3<\/td><td>M\u00f4i tr\u01b0\u1eddng<\/td><td>Khu v\u1ef1c n\u00e0y c\u00f3 b\u1ea9n, d\u00ednh d\u1ea7u m\u1ee1 hay ph\u1ea3i ch\u1ecbu rung \u0111\u1ed9ng m\u1ea1nh kh\u00f4ng?<\/td><td>Ch\u1ecdn b\u1ed9 m\u00e3 h\u00f3a t\u1eeb t\u00ednh<br>(B\u1ec1n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed)<\/td><td>Ch\u1ecdn b\u1ed9 m\u00e3 h\u00f3a ti\u00eau chu\u1ea9n<br>(T\u1ef7 l\u1ec7 c\u00e2n b\u1eb1ng t\u1ed1i \u01b0u gi\u1eefa chi ph\u00ed v\u00e0 hi\u1ec7u su\u1ea5t)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Gi\u1edd th\u00ec b\u1ea1n \u0111\u00e3 bi\u1ebft ch\u00ednh x\u00e1c m\u00ecnh c\u1ea7n g\u00ec, c\u00e2u h\u1ecfi duy nh\u1ea5t c\u00f2n l\u1ea1i l\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 mua \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m \u0111\u00f3 m\u00e0 kh\u00f4ng ph\u1ea3i tr\u1ea3 gi\u00e1 qu\u00e1 cao.<\/strong><\/p>\n\n\n\n<p>\u0110\u00e2y ch\u00ednh l\u00e0 l\u00fac OMCH ph\u00e1t huy vai tr\u00f2. K\u1ec3 t\u1eeb n\u0103m 1986, ch\u00fang t\u00f4i \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng \u0111\u1ed9 tin c\u1eady c\u00f4ng nghi\u1ec7p kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i \u0111i k\u00e8m v\u1edbi m\u1ee9c gi\u00e1 cao ng\u1ea5t ng\u01b0\u1edfng. Ch\u00fang t\u00f4i kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t nh\u00e0 cung c\u1ea5p th\u00f4ng th\u01b0\u1eddng; ch\u00fang t\u00f4i l\u00e0 m\u1ed9t \u201cc\u1ed7 m\u00e1y s\u1ea3n xu\u1ea5t\u201d ph\u1ee5c v\u1ee5 h\u01a1n 72.000 kh\u00e1ch h\u00e0ng t\u1ea1i 100 qu\u1ed1c gia, xu\u1ea5t x\u01b0\u1edfng 20 tri\u1ec7u s\u1ea3n ph\u1ea9m m\u1ed7i n\u0103m. V\u1edbi h\u01a1n 3.000 m\u00e3 s\u1ea3n ph\u1ea9m (SKU) c\u00f3 s\u1eb5n trong kho \u2014 bao g\u1ed3m d\u00f2ng s\u1ea3n ph\u1ea9m b\u1ed9 m\u00e3 h\u00f3a \u0111\u1ed9 ch\u00ednh x\u00e1c cao \u0111a d\u1ea1ng, \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn theo ti\u00eau chu\u1ea9n CE v\u00e0 RoHS \u2014 ch\u00fang t\u00f4i r\u1ea5t c\u00f3 th\u1ec3 c\u00f3 ch\u00ednh x\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u00e0 qu\u00fd kh\u00e1ch \u0111ang t\u00ecm ki\u1ebfm. T\u1ea1i sao ph\u1ea3i m\u1ea1o hi\u1ec3m ng\u00e2n s\u00e1ch c\u1ee7a qu\u00fd kh\u00e1ch cho nh\u1eefng th\u01b0\u01a1ng hi\u1ec7u \u0111\u01b0\u1ee3c th\u1ed5i ph\u1ed3ng gi\u00e1 tr\u1ecb khi qu\u00fd kh\u00e1ch c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh t\u01b0\u01a1ng t\u1ef1 tr\u1ef1c ti\u1ebfp t\u1eeb ngu\u1ed3n cung c\u1ea5p?<\/p>\n\n\n\n<p>D\u00f9 b\u1ea1n c\u1ea7n m\u1ed9t c\u1ea3m bi\u1ebfn b\u1ec1n b\u1ec9 cho \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p n\u1eb7ng hay m\u1ed9t b\u1ed9 m\u00e3 h\u00f3a ch\u00ednh x\u00e1c cho d\u00e2y chuy\u1ec1n t\u1ef1 \u0111\u1ed9ng, \u0111\u1eebng ch\u1ec9 ph\u1ecfng \u0111o\u00e1n n\u1eefa m\u00e0 h\u00e3y b\u1eaft \u0111\u1ea7u t\u1ed1i \u01b0u h\u00f3a ngay. <strong><a href=\"https:\/\/www.omch.com\/vi\/contact\/\">Li\u00ean h\u1ec7 v\u1edbi b\u1ed9 ph\u1eadn h\u1ed7 tr\u1ee3 c\u1ee7a OMCH<\/a><\/strong> H\u00e3y li\u00ean h\u1ec7 ngay h\u00f4m nay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed ho\u1eb7c <strong><a href=\"https:\/\/www.omch.com\/vi\/electrical-equipment-and-supplies\/\">Xem danh m\u1ee5c b\u1ed9 m\u00e3 h\u00f3a c\u1ee7a ch\u00fang t\u00f4i<\/a><\/strong> \u0111\u1ec3 t\u00ecm ra gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p nh\u1ea5t cho d\u1ef1 \u00e1n ti\u1ebfp theo c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng b\u1ed9 gi\u1ea3i m\u00e3 (resolver) thay v\u00ec b\u1ed9 m\u00e3 h\u00f3a (encoder)?<\/strong><\/li>\n<\/ul>\n\n\n\n<p>B\u1ed9 gi\u1ea3i m\u00e3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn ch\u1ee7 y\u1ebfu nh\u1edd \u0111\u1ed9 b\u1ec1n cao. Do kh\u00f4ng ch\u1ee9a c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed b\u00ean trong (chip, t\u1ee5 \u0111i\u1ec7n ho\u1eb7c m\u1ed1i h\u00e0n), ch\u00fang c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao (&gt;155\u00b0C), rung \u0111\u1ed9ng m\u1ea1nh v\u00e0 b\u1ee9c x\u1ea1 \u2013 nh\u1eefng y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m b\u00ean trong b\u1ed9 m\u00e3 h\u00f3a b\u1ecb h\u1ecfng ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Resolver c\u00f3 ph\u1ea3i l\u00e0 b\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng?<\/strong><\/li>\n<\/ul>\n\n\n\n<p>C\u00f3, m\u1ed9t resolver ti\u00eau chu\u1ea9n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t b\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i m\u1ed9t v\u00f2ng quay (th\u01b0\u1eddng \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi b\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i), cung c\u1ea5p d\u1eef li\u1ec7u v\u1ecb tr\u00ed tuy\u1ec7t \u0111\u1ed1i d\u01b0\u1edbi d\u1ea1ng t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1. N\u00f3 t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p t\u01b0\u01a1ng t\u1ef1 ri\u00eang bi\u1ec7t cho m\u1ed7i gi\u00e1 tr\u1ecb v\u1ecb tr\u00ed duy nh\u1ea5t trong qu\u00e1 tr\u00ecnh quay 360\u00b0C (cung c\u1ea5p <strong>v\u1ecb tr\u00ed tuy\u1ec7t \u0111\u1ed1i<\/strong>). Khi \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n, n\u00f3 bi\u1ebft v\u1ecb tr\u00ed c\u1ee7a m\u00ecnh, nh\u01b0ng kh\u00f4ng th\u1ec3 theo d\u00f5i c\u00e1c v\u00f2ng quay \u0111\u1ea7y \u0111\u1ee7 kh\u00e1c trong khi \u0111ang ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u00f3 m\u1ea1ch logic b\u1ed5 sung tr\u00ean m\u1ea1ch \u0111i\u1ec7n t\u1eed ph\u1ea3n h\u1ed3i.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u00f4i c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n thay th\u1ebf b\u1ed9 gi\u1ea3i m\u00e3 (resolver) b\u1eb1ng b\u1ed9 m\u00e3 h\u00f3a (encoder) kh\u00f4ng?<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 kh\u00f4ng. Giao di\u1ec7n \u0111i\u1ec7n t\u1eed tr\u00ean b\u1ed9 gi\u1ea3i m\u00e3 v\u00e0 b\u1ed9 m\u00e3 h\u00f3a r\u1ea5t kh\u00e1c nhau; b\u1ed9 m\u00e3 h\u00f3a s\u1eed d\u1ee5ng \u0111\u1ea7u ra k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC), trong khi b\u1ed9 gi\u1ea3i m\u00e3 y\u00eau c\u1ea7u \u0111\u1ea7u ra t\u01b0\u01a1ng t\u1ef1 v\u00e0 ngu\u1ed3n k\u00edch th\u00edch xoay chi\u1ec1u (AC). Trong tr\u01b0\u1eddng h\u1ee3p thay th\u1ebf c\u00e1c thi\u1ebft b\u1ecb n\u00e0y, r\u1ea5t c\u00f3 th\u1ec3 b\u1ea1n s\u1ebd ph\u1ea3i thay \u0111\u1ed5i b\u1ed9 \u0111i\u1ec1u khi\u1ec3n servo ho\u1eb7c l\u1eafp th\u00eam m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111\u1eaft ti\u1ec1n \u1edf gi\u1eefa.<\/p>","protected":false},"excerpt":{"rendered":"<p>Trong l\u0129nh v\u1ef1c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p, h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ea7n xem x\u00e9t. Tuy nhi\u00ean, b\u1ea1n kh\u00f4ng th\u1ec3 \u0111i\u1ec1u khi\u1ec3n m\u1ed9t th\u1ee9 g\u00ec \u0111\u00f3 n\u1ebfu tr\u01b0\u1edbc ti\u00ean kh\u00f4ng th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c n\u00f3. Encoder v\u00e0 resolver \u0111\u1ec1u th\u1ef1c hi\u1ec7n c\u00f9ng m\u1ed9t ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 l\u00e0 thi\u1ebft b\u1ecb ph\u1ea3n h\u1ed3i c\u1ee7a \u0111\u1ed9ng c\u01a1 servo, chuy\u1ec3n \u0111\u1ed5i chuy\u1ec3n \u0111\u1ed9ng c\u01a1 h\u1ecdc c\u1ee7a tr\u1ee5c quay t\u1eeb [\u2026]<\/p>","protected":false},"author":4,"featured_media":9116,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Resolver vs Encoder: Insights for Industrial Applications","_seopress_titles_desc":"Discover the key differences in our technical comparison of resolver vs encoder. Learn how each functions in industrial motor feedback systems.","_seopress_robots_index":"","footnotes":""},"categories":[46],"tags":[],"class_list":["post-9123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrial-control"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/9123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/comments?post=9123"}],"version-history":[{"count":1,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/9123\/revisions"}],"predecessor-version":[{"id":9126,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/9123\/revisions\/9126"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media\/9116"}],"wp:attachment":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media?parent=9123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/categories?post=9123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/tags?post=9123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}