{"id":7509,"date":"2025-08-20T09:26:35","date_gmt":"2025-08-20T09:26:35","guid":{"rendered":"https:\/\/www.omch.com\/?p=7509"},"modified":"2025-11-14T09:06:24","modified_gmt":"2025-11-14T09:06:24","slug":"what-is-a-rotary-encoder","status":"publish","type":"post","link":"https:\/\/www.omch.com\/vi\/what-is-a-rotary-encoder\/","title":{"rendered":"B\u1ed9 m\u00e3 h\u00f3a quay l\u00e0 g\u00ec? C\u00e1c lo\u1ea1i, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p>\u0110\u1ed9 ch\u00ednh x\u00e1c hi\u1ec7n nay l\u00e0 m\u1ed9t y\u00eau c\u1ea7u thi\u1ebft y\u1ebfu trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt ng\u00e0y nay, n\u01a1i kh\u00f4ng c\u00f3 g\u00ec l\u00e0 xa x\u1ec9. Trong t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p, \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c, vi\u1ec7c ki\u1ec3m so\u00e1t chuy\u1ec3n \u0111\u1ed9ng l\u00e0 ho\u00e0n to\u00e0n kh\u1ea3 thi, nh\u01b0ng n\u00f3 ph\u1ea3i \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c. Y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ee7a kh\u1ea3 n\u0103ng n\u00e0y ch\u00ednh l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n \u0111i\u1ec7n c\u01a1 thi\u1ebft y\u1ebfu: b\u1ed9 m\u00e3 h\u00f3a quay. B\u00e0i h\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u chi ti\u1ebft v\u1ec1 b\u1ed9 m\u00e3 h\u00f3a quay, gi\u1ea3i th\u00edch m\u1ee5c \u0111\u00edch, c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng b\u00ean trong, c\u00e1c lo\u1ea1i ch\u00ednh c\u0169ng nh\u01b0 c\u00e1ch s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n trong ph\u1ea1m vi c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 h\u1ec7 th\u1ed1ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 m\u00e3 h\u00f3a quay l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng?<\/h2>\n\n\n\n<p>B\u1ed9 m\u00e3 h\u00f3a quay l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb c\u01a1 \u0111i\u1ec7n, hay c\u00f2n g\u1ecdi l\u00e0 c\u1ea3m bi\u1ebfn c\u01a1 \u0111i\u1ec7n, c\u00f3 ch\u1ee9c n\u0103ng \u0111o g\u00f3c quay ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a tr\u1ee5c quay v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00f4ng tin n\u00e0y th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n. T\u00edn hi\u1ec7u n\u00e0y c\u00f3 b\u1ea3n ch\u1ea5t l\u00e0 t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 ho\u1eb7c c\u00f3 th\u1ec3 l\u00e0 t\u00edn hi\u1ec7u s\u1ed1, cung c\u1ea5p th\u00f4ng tin h\u1eefu \u00edch v\u1ec1 v\u1ecb tr\u00ed g\u00f3c c\u1ee7a thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o, h\u01b0\u1edbng quay c\u1ee7a tr\u1ee5c, t\u1ed1c \u0111\u1ed9 v\u00e0 gia t\u1ed1c. Kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 l\u00e0 v\u00f4 c\u00f9ng qu\u00fd gi\u00e1 trong nhi\u1ec1u c\u01a1 ch\u1ebf kh\u00e1c nhau, n\u01a1i c\u1ea7n c\u00f3 ph\u1ea3n h\u1ed3i quay ch\u00ednh x\u00e1c trong c\u01a1 ch\u1ebf \u0111i\u1ec1u khi\u1ec3n v\u00f2ng k\u00edn ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<p>B\u1ed9 m\u00e3 h\u00f3a quay v\u1ec1 c\u01a1 b\u1ea3n kh\u00e1c v\u1edbi chi\u1ebft \u00e1p, m\u1eb7c d\u00f9 hai thi\u1ebft b\u1ecb n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi nhau. Chi\u1ebft \u00e1p l\u00e0 m\u1ed9t c\u1ea3m bi\u1ebfn t\u01b0\u01a1ng t\u1ef1 tuy\u1ec7t \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n, t\u1ea1o ra \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra t\u0103ng d\u1ea7n theo v\u1ecb tr\u00ed c\u1ee7a thanh tr\u01b0\u1ee3t di \u0111\u1ed9ng, v\u00e0 c\u00f3 gi\u1edbi h\u1ea1n g\u00f3c quay nh\u1ecf h\u01a1n 360A}}$S \u1edf kho\u1ea3ng 270 \u0111\u1ed9, v\u1edbi \u0111i\u1ec3m 0 c\u1ee7a \u0111\u1ea7u ra t\u01b0\u01a1ng \u1ee9ng v\u1edbi kho\u1ea3ng t\u1eeb 0 \u0111\u1ebfn 360 \u0111\u1ed9 (t\u00f9y thu\u1ed9c v\u00e0o nh\u00e0 s\u1ea3n xu\u1ea5t). Ng\u01b0\u1ee3c l\u1ea1i, h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 m\u00e3 h\u00f3a quay \u0111\u1ec1u l\u00e0 lo\u1ea1i kh\u00f4ng ti\u1ebfp x\u00fac ho\u1eb7c c\u00f3 kh\u1ea3 n\u0103ng xoay \u0111\u1ebfn m\u1ed9t g\u00f3c l\u00fd thuy\u1ebft kh\u00f4ng gi\u1edbi h\u1ea1n, v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt c\u1ea3m bi\u1ebfn kh\u00f4ng ti\u1ebfp x\u00fac \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1edd \u0111\u00f3 gi\u00fap tr\u00e1nh \u0111\u01b0\u1ee3c s\u1ef1 m\u00e0i m\u00f2n c\u01a1 h\u1ecdc v\u1ed1n c\u00f3 \u1edf thanh tr\u01b0\u1ee3t c\u1ee7a chi\u1ebft \u00e1p. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf n\u00ean ho\u00e0n h\u1ea3o \u0111\u1ec3 s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng xoay li\u00ean t\u1ee5c v\u00e0 gi\u00fap t\u0103ng \u0111\u00e1ng k\u1ec3 tu\u1ed5i th\u1ecd ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p>C\u00e1c b\u1ed9 m\u00e3 h\u00f3a quay cung c\u1ea5p d\u1eef li\u1ec7u n\u1ec1n t\u1ea3ng cho h\u00e0ng tri\u1ec7u quy tr\u00ecnh t\u1ef1 \u0111\u1ed9ng. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p, robot, gia c\u00f4ng CNC v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c, \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong vi\u1ec7c gi\u00fap h\u1ec7 th\u1ed1ng n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00ednh m\u00ecnh, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh cho ph\u00f9 h\u1ee3p v\u00e0 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea3n th\u00e2n. Vi\u1ec7c nghi\u00ean c\u1ee9u c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang l\u00e0 \u0111i\u1ec1u quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 k\u1ef9 s\u01b0 hay k\u1ef9 thu\u1eadt vi\u00ean n\u00e0o l\u00e0m vi\u1ec7c trong c\u00e1c l\u0129nh v\u1ef1c n\u00e0y.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img alt=\"\" fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder.webp\" class=\"wp-image-7513\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder-300x225.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Hi\u1ec3u c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a quay<\/h2>\n\n\n\n<p>V\u1ec1 c\u01a1 b\u1ea3n, ch\u1ee9c n\u0103ng c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a quay ch\u1ec9 l\u00e0 chuy\u1ec3n \u0111\u1ed5i chuy\u1ec3n \u0111\u1ed9ng quay c\u01a1 h\u1ecdc th\u00e0nh m\u1ed9t chu\u1ed7i c\u00e1c xung \u0111i\u1ec7n. B\u1ed9 m\u00e3 h\u00f3a quay ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh n\u00e0y th\u00f4ng qua s\u1ef1 t\u01b0\u01a1ng t\u00e1c \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh m\u1ed9t c\u00e1ch tinh vi gi\u1eefa b\u1ed9 ph\u1eadn m\u00e3 h\u00f3a v\u00e0 b\u1ed9 ph\u1eadn c\u1ea3m bi\u1ebfn.<\/p>\n\n\n\n<p>B\u1ed9 ph\u1eadn quan tr\u1ecdng nh\u1ea5t l\u00e0 m\u1ed9t \u0111\u0129a c\u00f3 hoa v\u0103n ho\u1eb7c b\u00e1nh xe m\u00e3 \u0111\u01b0\u1ee3c \u00e9p v\u00e0o tr\u1ee5c c\u1ea7n ki\u1ec3m tra. \u0110\u0129a n\u00e0y c\u00f3 hoa v\u0103n l\u1eb7p l\u1ea1i v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee5 th\u1ec3 m\u00e0 m\u1ed9t c\u1ea3m bi\u1ebfn c\u1ed1 \u0111\u1ecbnh c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n. Vi\u1ec7c \u00e1p d\u1ee5ng nguy\u00ean l\u00fd n\u00e0y \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n qua ba c\u00f4ng ngh\u1ec7 ch\u00ednh sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc quay: <\/strong>\u0110\u00e2y l\u00e0 lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a ph\u1ed5 bi\u1ebfn nh\u1ea5t trong s\u1ed1 c\u00e1c lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a kh\u00e1c nhau v\u00e0 h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, n\u00f3 c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao nh\u1ea5t. B\u00e1nh xe m\u00e3 h\u00f3a l\u00e0 m\u1ed9t \u0111\u0129a trong su\u1ed1t c\u00f3 b\u1ed1 tr\u00ed c\u00e1c \u0111\u01b0\u1eddng ho\u1eb7c v\u1ebft c\u1eaft kh\u00f4ng trong su\u1ed1t tr\u00ean b\u1ec1 m\u1eb7t. Thay v\u00e0o \u0111\u00f3, ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng m\u1ed9t \u0111i-\u1ed1t ph\u00e1t s\u00e1ng (LED) \u0111\u1ec3 chi\u1ebfu ch\u00f9m s\u00e1ng xuy\u00ean qua \u0111\u0129a; sau \u0111\u00f3, m\u1ed9t b\u1ed9 c\u1ea3m bi\u1ebfn quang ghi nh\u1eadn c\u00e1c l\u1ea7n ch\u1ea1m v\u00e0o ch\u00f9m s\u00e1ng khi c\u00e1c \u0111\u01b0\u1eddng kh\u00f4ng trong su\u1ed1t di chuy\u1ec3n qua \u0111\u01b0\u1eddng ph\u00e1t hi\u1ec7n; \u0111i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t xung.<\/li>\n\n\n\n<li><strong>B\u1ed9 m\u00e3 h\u00f3a t\u1eeb t\u00ednh:<\/strong> Trong thi\u1ebft k\u1ebf n\u00e0y, m\u1ed9t r\u00f4to t\u1eeb h\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng d\u01b0\u1edbi d\u1ea1ng b\u00e1nh xe m\u00e3 h\u00f3a c\u00f3 m\u1ed9t chu\u1ed7i c\u00e1c c\u1ef1c B\u1eafc v\u00e0 Nam. Nh\u1eefng thay \u0111\u1ed5i trong t\u1eeb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1edfi m\u1ed9t c\u1ea3m bi\u1ebfn t\u1eeb t\u00ednh c\u1ed1 \u0111\u1ecbnh ho\u1ea1t \u0111\u1ed9ng theo hi\u1ec7u \u1ee9ng Hall ho\u1eb7c hi\u1ec7u \u1ee9ng t\u1eeb tr\u1edf khi b\u00e1nh xe quay. B\u1ed9 m\u00e3 h\u00f3a t\u1eeb t\u00ednh c\u00f3 th\u1ec3 r\u1ea5t b\u1ec1n b\u1ec9 v\u00e0 c\u00f3 \u0111\u1ed9 tin c\u1eady cao, \u0111\u1ed3ng th\u1eddi kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng nh\u01b0 b\u1ee5i, \u0111\u1ed9 \u1ea9m v\u00e0 d\u1ea7u m\u1ee1, khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p trong \u0111i\u1ec1u ki\u1ec7n b\u1ea9n.<\/li>\n\n\n\n<li><strong>B\u1ed9 m\u00e3 h\u00f3a c\u01a1 h\u1ecdc:<\/strong> \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p r\u1ebb nh\u1ea5t v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng nh\u1ea5t. M\u00f4 h\u00ecnh c\u00e1c \u0111\u01b0\u1eddng d\u1eabn \u0111i\u1ec7n tr\u00ean m\u1ed9t \u0111\u0129a s\u1ebd ti\u1ebfp x\u00fac v\u1eadt l\u00fd v\u1edbi m\u1ed9t b\u1ed9 ch\u1ed5i than c\u1ed1 \u0111\u1ecbnh. S\u1ef1 thay \u0111\u1ed5i c\u1ee7a m\u00f4 h\u00ecnh n\u00e0y khi tr\u1ee5c quay s\u1ebd l\u00e0m ng\u1eaft v\u00e0 n\u1ed1i l\u1ea1i c\u00e1c m\u1ea1ch \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o ra t\u00edn hi\u1ec7u. Nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u00ednh c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 s\u1ef1 m\u00e0i m\u00f2n c\u01a1 h\u1ecdc, tu\u1ed5i th\u1ecd ng\u1eafn v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng dao \u0111\u1ed9ng ti\u1ebfp x\u00fac, \u0111i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i th\u1ef1c hi\u1ec7n x\u1eed l\u00fd kh\u1eed dao \u0111\u1ed9ng t\u00edn hi\u1ec7u.<\/li>\n<\/ul>\n\n\n\n<p>\u0110i\u1ec3m \u0111\u1ed9t ph\u00e1 l\u1edbn nh\u1ea5t c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng t\u00edn hi\u1ec7u vu\u00f4ng g\u00f3c, do \u0111\u00f3 c\u00f3 t\u00ean g\u1ecdi l\u00e0 b\u1ed9 m\u00e3 h\u00f3a vu\u00f4ng g\u00f3c. Ch\u00fang t\u1ea1o ra hai chu\u1ed7i xung ri\u00eang bi\u1ec7t (m\u1ed9t chu\u1ed7i \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Giai \u0111o\u1ea1n A v\u00e0 chu\u1ed7i c\u00f2n l\u1ea1i \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Giai \u0111o\u1ea1n B), l\u1ec7ch pha nhau 90 \u0111\u1ed9. B\u1eb1ng c\u00e1ch so s\u00e1nh pha c\u1ee7a t\u00edn hi\u1ec7u n\u00e0o \u0111i tr\u01b0\u1edbc pha c\u1ee7a t\u00edn hi\u1ec7u kia, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c h\u01b0\u1edbng quay. Khi A d\u1eabn tr\u01b0\u1edbc B, tr\u1ee5c quay theo chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3; khi B d\u1eabn tr\u01b0\u1edbc A, tr\u1ee5c quay ng\u01b0\u1ee3c chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3. Ngo\u00e0i ra, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 \u0111o t\u1ea7n s\u1ed1 c\u1ee7a c\u00e1c xung n\u00e0y \u0111\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 c\u1ee7a tr\u1ee5c.<\/p>\n\n\n\n<p>B\u1ed9 m\u00e3 h\u00f3a c\u00e0ng ch\u00ednh x\u00e1c th\u00ec \u0111\u1ed9 ph\u00e2n gi\u1ea3i c\u1ee7a n\u00f3 c\u00e0ng cao, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng s\u1ed1 xung tr\u00ean m\u1ed7i v\u00f2ng quay (PPR) ho\u1eb7c s\u1ed1 \u0111\u1ebfm tr\u00ean m\u1ed7i v\u00f2ng quay (CPR). M\u1ed9t b\u1ed9 m\u00e3 h\u00f3a 1000 PPR s\u1ebd t\u1ea1o ra 1000 xung cho m\u1ed7i v\u00f2ng quay 360 \u0111\u1ed9 tr\u00ean c\u00e1c k\u00eanh A v\u00e0 B c\u1ee7a n\u00f3. B\u1ed9 m\u00e3 h\u00f3a \u0111a k\u00eanh c\u00f2n bao g\u1ed3m m\u1ed9t k\u00eanh th\u1ee9 ba l\u00e0 t\u00edn hi\u1ec7u Z ho\u1eb7c t\u00edn hi\u1ec7u ch\u1ec9 s\u1ed1, v\u1edbi m\u1ed9t xung duy nh\u1ea5t xu\u1ea5t hi\u1ec7n m\u1ed7i v\u00f2ng quay. \u0110i\u1ec1u n\u00e0y s\u1ebd r\u1ea5t h\u1eefu \u00edch trong c\u00e1c tr\u00ecnh t\u1ef1 \u0111\u1ecbnh v\u1ecb ban \u0111\u1ea7u v\u00e0 hi\u1ec7u chu\u1ea9n v\u1ecb tr\u00ed.<\/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\/08\/what-is-a-rotary-encoder3.webp\" class=\"wp-image-7515\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder3.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder3-300x225.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder3-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a ch\u00ednh v\u00e0 nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa ch\u00fang<\/h2>\n\n\n\n<p>M\u1eb7c d\u00f9 b\u1ed9 m\u00e3 h\u00f3a c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o c\u00e1ch th\u1ee9c c\u1ea3m bi\u1ebfn, nh\u01b0ng c\u00e1ch ph\u00e2n lo\u1ea1i quan tr\u1ecdng nh\u1ea5t c\u1ee7a ch\u00fang l\u00e0 d\u1ef1a tr\u00ean \u0111\u1ea7u ra. Vi\u1ec7c l\u1ef1a ch\u1ecdn s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a ki\u1ec3u t\u0103ng d\u1ea7n hay b\u1ed9 m\u00e3 h\u00f3a ki\u1ec3u tuy\u1ec7t \u0111\u1ed1i l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u v\u1ec1 v\u1ecb tr\u00ed c\u0169ng nh\u01b0 chi ph\u00ed c\u1ee7a \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 \u0111\u00f3.<\/p>\n\n\n\n<p><strong>B\u1ed9 m\u00e3 h\u00f3a quay t\u0103ng d\u1ea7n<\/strong>: B\u1ed9 m\u00e3 h\u00f3a quay gia t\u0103ng l\u00e0 lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a c\u00f3 lu\u1ed3ng t\u00edn hi\u1ec7u \u0111\u1ea7u ra d\u1ea1ng xung th\u1ec3 hi\u1ec7n chuy\u1ec3n \u0111\u1ed9ng t\u01b0\u01a1ng \u0111\u1ed1i. N\u00f3 kh\u00f4ng ph\u1ea3n \u00e1nh v\u1ecb tr\u00ed th\u1ef1c t\u1ebf c\u1ee7a tr\u1ee5c, m\u00e0 ch\u1ec9 cho bi\u1ebft tr\u1ee5c c\u00f3 \u0111ang di chuy\u1ec3n hay kh\u00f4ng v\u00e0 theo h\u01b0\u1edbng n\u00e0o. B\u1ed9 \u0111i\u1ec1u khi\u1ec3n trong h\u1ec7 th\u1ed1ng s\u1ebd ph\u1ea3i ghi l\u1ea1i c\u00e1c xung n\u00e0y so v\u1edbi m\u1ed9t \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u \u0111\u00e3 bi\u1ebft. \u0110i\u1ec3m kh\u1edfi \u0111\u1ea7u n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb v\u1ec1 v\u1ecb tr\u00ed g\u1ed1c, th\u01b0\u1eddng th\u00f4ng qua m\u1ed9t quy tr\u00ecnh \u0111\u1ecbnh v\u1ecb g\u1ed1c tr\u00ean t\u00edn hi\u1ec7u Z. \u01afu \u0111i\u1ec3m \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a t\u0103ng d\u1ea7n l\u00e0 ch\u00fang \u0111\u01a1n gi\u1ea3n v\u00e0 r\u1ebb ti\u1ec1n. Tuy nhi\u00ean, nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u00ednh l\u00e0 trong tr\u01b0\u1eddng h\u1ee3p m\u1ea5t \u0111i\u1ec7n, t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 v\u1ecb tr\u00ed s\u1ebd b\u1ecb x\u00f3a. Sau khi kh\u00f4i ph\u1ee5c ngu\u1ed3n \u0111i\u1ec7n, h\u1ec7 th\u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb l\u1ea1i v\u1ec1 v\u1ecb tr\u00ed g\u1ed1c \u0111\u1ec3 l\u1ea5y l\u1ea1i v\u1ecb tr\u00ed.<\/p>\n\n\n\n<p><strong>B\u1ed9 m\u00e3 h\u00f3a quay tuy\u1ec7t \u0111\u1ed1i: <\/strong>Ng\u01b0\u1ee3c l\u1ea1i, b\u1ed9 m\u00e3 h\u00f3a quay tuy\u1ec7t \u0111\u1ed1i c\u00f3 t\u00edn hi\u1ec7u kh\u00e1c \u2013 m\u1ed9t t\u1eeb s\u1ed1 ho\u1eb7c m\u00e3 t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u1eebng v\u1ecb tr\u00ed tr\u1ee5c. Trong b\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i, b\u00e1nh xe m\u00e3 ph\u1ee9c t\u1ea1p h\u01a1n \u1edf ch\u1ed7 m\u1ed7i v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a th\u00e0nh m\u1ed9t b\u1ed9 m\u00e3 nh\u1ecb ph\u00e2n c\u1ee5 th\u1ec3. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 khi h\u1ec7 th\u1ed1ng b\u1ecb m\u1ea5t \u0111i\u1ec7n nh\u01b0ng sau \u0111\u00f3 \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n tr\u1edf l\u1ea1i, b\u1ed9 m\u00e3 h\u00f3a s\u1ebd cung c\u1ea5p v\u1ecb tr\u00ed th\u1ef1c ngay khi c\u00f3 \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf y\u00eau c\u1ea7u v\u1ec1 chu\u1ed7i \u0111\u1ecbnh v\u1ecb ban \u0111\u1ea7u (homing) v\u00e0 kh\u00f4ng l\u00e0m m\u1ea5t d\u1eef li\u1ec7u \u0111\u1ecbnh v\u1ecb trong qu\u00e1 tr\u00ecnh ng\u1eaft\/b\u1eadt ngu\u1ed3n, \u0111i\u1ec1u c\u1ea7n thi\u1ebft trong h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng an to\u00e0n quan tr\u1ecdng v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u1ec1 v\u1ecb tr\u00ed. B\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i c\u00f2n \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c lo\u1ea1i sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u1ed9t v\u00f2ng:<\/strong> Cung c\u1ea5p v\u1ecb tr\u00ed tuy\u1ec7t \u0111\u1ed1i trong m\u1ed9t v\u00f2ng quay 360 \u0111\u1ed9.<\/li>\n\n\n\n<li><strong>\u0110a v\u00f2ng:<\/strong> \u0110\u01b0\u1ee3c trang b\u1ecb th\u00eam m\u1ed9t c\u01a1 c\u1ea5u b\u00e1nh r\u0103ng \u0111\u1ec3 \u0111\u1ebfm s\u1ed1 v\u00f2ng quay \u0111\u1ea7y \u0111\u1ee7, t\u1eeb \u0111\u00f3 t\u1ea1o ra m\u1ed9t m\u00e3 duy nh\u1ea5t trong ph\u1ea1m vi chuy\u1ec3n \u0111\u1ed9ng r\u1ea5t r\u1ed9ng.<\/li>\n<\/ul>\n\n\n\n<p>Kh\u00f4ng c\u00f3 g\u00ec ng\u1ea1c nhi\u00ean khi \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 kh\u1ea3 n\u0103ng cao h\u01a1n c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i khi\u1ebfn ch\u00fang c\u00f3 gi\u00e1 cao h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>T\u00ednh n\u0103ng<\/td><td>B\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng<\/td><td>B\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i<\/td><\/tr><tr><td>\u0110\u1ea7u ra<\/td><td>D\u00e3y xung A\/B\/Z<\/td><td>M\u00e3 s\u1ed1 k\u1ef9 thu\u1eadt s\u1ed1 duy nh\u1ea5t cho t\u1eebng v\u1ecb tr\u00ed<\/td><\/tr><tr><td>D\u1eef li\u1ec7u v\u1ecb tr\u00ed<\/td><td>S\u1ef1 thay \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u1ed1i so v\u1edbi \u0111i\u1ec3m xu\u1ea5t ph\u00e1t<\/td><td>V\u1ecb tr\u00ed tuy\u1ec7t \u0111\u1ed1i ch\u00ednh x\u00e1c m\u1ecdi l\u00fac<\/td><\/tr><tr><td>M\u1ea5t \u0111i\u1ec7n<\/td><td>D\u1eef li\u1ec7u v\u1ecb tr\u00ed b\u1ecb m\u1ea5t<\/td><td>D\u1eef li\u1ec7u v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef<\/td><\/tr><tr><td>T\u1ef1 t\u00ecm \u0111\u01b0\u1eddng v\u1ec1<\/td><td>Y\u00eau c\u1ea7u sau khi m\u1ea5t \u0111i\u1ec7n<\/td><td>Kh\u00f4ng b\u1eaft bu\u1ed9c<\/td><\/tr><tr><td>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/td><td>\u0110\u01a1n gi\u1ea3n h\u01a1n, \u00edt d\u00e2y h\u01a1n<\/td><td>\u0110\u1ea7u ra ph\u1ee9c t\u1ea1p h\u01a1n, nhi\u1ec1u bit<\/td><\/tr><tr><td>Chi ph\u00ed<\/td><td>Th\u1ea5p h\u01a1n<\/td><td>Cao h\u01a1n<\/td><\/tr><tr><td>C\u00e1ch s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/td><td>\u0110i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9, \u0111\u1ecbnh v\u1ecb t\u01b0\u01a1ng \u0111\u1ed1i<\/td><td>C\u00e1nh tay robot, CNC, \u0111\u1ecbnh v\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u1ea7u ra t\u00edn hi\u1ec7u v\u00e0 c\u00e1ch gi\u1ea3i m\u00e3 b\u1ed9 m\u00e3 h\u00f3a quay<\/h2>\n\n\n\n<p>T\u00edn hi\u1ec7u \u0111\u1ea7u ra d\u1ea1ng s\u00f3ng vu\u00f4ng do b\u1ed9 m\u00e3 h\u00f3a t\u1ea1o ra ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1ea3i m\u00e3 ch\u00ednh x\u00e1c t\u1ea1i b\u1ed9 \u0111i\u1ec1u khi\u1ec3n nh\u1eadn (th\u01b0\u1eddng l\u00e0 PLC, vi \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c b\u1ed9 bi\u1ebfn t\u1ea7n). Vi\u1ec7c ph\u00e2n lo\u1ea1i ch\u00ednh x\u00e1c c\u00e1c lo\u1ea1i t\u00edn hi\u1ec7u \u0111\u1ea7u ra kh\u00e1c nhau l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u1ea7n c\u1ee9ng v\u00e0 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<p>T\u00edn hi\u1ec7u ch\u1ee7 \u0111\u1ea1o \u0111\u01b0\u1ee3c t\u1ea1o ra l\u00e0 t\u00edn hi\u1ec7u Quadrature (c\u00e1c pha A\/B) nh\u01b0 \u0111\u00e3 gi\u1ea3i th\u00edch trong c\u00e1c \u0111o\u1ea1n tr\u01b0\u1edbc. Tuy nhi\u00ean, m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n \u0111\u1ea7u ra quy\u1ebft \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n c\u1ee7a c\u00e1ch th\u1ee9c c\u00e1c t\u00edn hi\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n. C\u00e1c v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Push-Pull (HTL \u2013 M\u1ea1ch logic ng\u01b0\u1ee1ng cao):<\/strong> M\u1ed9t lo\u1ea1i \u0111\u1ea7u ra ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. N\u00f3 l\u00e0m dao \u0111\u1ed9ng t\u00edn hi\u1ec7u theo h\u01b0\u1edbng d\u01b0\u01a1ng (l\u00ean m\u1ee9c \u0111i\u1ec7n \u00e1p ngu\u1ed3n) v\u00e0 \u00e2m (xu\u1ed1ng m\u1ee9c \u0111\u1ea5t) nh\u1eb1m t\u1ea1o ra t\u00edn hi\u1ec7u m\u1ea1nh v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u t\u1ed1t. Lo\u1ea1i \u0111\u1ea7u ra n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p 24V.<\/li>\n\n\n\n<li><strong>TTL<\/strong><strong> (<\/strong><strong>M\u1ea1ch logic Transistor-Transistor<\/strong><strong>):<\/strong> B\u1ed9 khu\u1ebfch \u0111\u1ea1i n\u00e0y cung c\u1ea5p t\u00edn hi\u1ec7u vu\u00f4ng 5V v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh cho c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i h\u01a1n nh\u1edd c\u00e1c t\u00edn hi\u1ec7u \u0111\u1ea7u ra A v\u00e0 A-not, B v\u00e0 B-not, Z v\u00e0 Z-not \u2013 \u0111\u00e2y l\u00e0 b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u0111\u01b0\u1eddng truy\u1ec1n vi sai. Nh\u1edd c\u00e1c t\u00edn hi\u1ec7u vi sai n\u00e0y, b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng kh\u1eed nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3.<\/li>\n\n\n\n<li><strong>C\u1ef1c thu h\u1edf (NPN\/PNP):<\/strong> M\u1ed9t trong c\u00e1c lo\u1ea1i \u0111\u1ea7u ra l\u00e0 Open Collector (NPN\/PNP), \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t c\u00f4ng t\u1eafc. Lo\u1ea1i \u0111\u1ea7u ra n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0a \u0111\u01b0\u1eddng t\u00edn hi\u1ec7u xu\u1ed1ng m\u1ee9c \u0111\u1ea5t (NPN) ho\u1eb7c l\u00ean m\u1ee9c \u0111i\u1ec7n \u00e1p ngu\u1ed3n (PNP), nh\u01b0ng kh\u00f4ng th\u1ec3 ch\u1ee7 \u0111\u1ed9ng \u0111\u01b0a t\u00edn hi\u1ec7u theo h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 m\u1ed9t \u0111i\u1ec7n tr\u1edf k\u00e9o l\u00ean (pull-up) ho\u1eb7c k\u00e9o xu\u1ed1ng (pull-down) b\u00ean ngo\u00e0i \u1edf ph\u00eda b\u1ed9 \u0111i\u1ec1u khi\u1ec3n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi m\u1ed9t ch\u00e2n chung nh\u01b0 VCC ho\u1eb7c m\u1ee9c \u0111\u1ea5t, v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t tr\u1ea1ng th\u00e1i logic x\u00e1c \u0111\u1ecbnh. C\u00e1ch k\u1ebft n\u1ed1i n\u00e0y r\u1ea5t h\u1eefu \u00edch khi k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 \u0111i\u1ec7n \u00e1p logic kh\u00e1c nhau.<\/li>\n<\/ul>\n\n\n\n<p>Qu\u00e1 tr\u00ecnh gi\u1ea3i m\u00e3 c\u00e1c t\u00edn hi\u1ec7u A\/B di\u1ec5n ra m\u1ed9t c\u00e1ch logic. B\u1ed9 \u0111i\u1ec1u khi\u1ec3n li\u00ean t\u1ee5c ki\u1ec3m tra xem k\u00eanh n\u00e0o trong hai k\u00eanh \u0111ang kh\u1ea3 d\u1ee5ng. N\u1ebfu k\u00eanh \u0111\u1ed1i di\u1ec7n ho\u1eb7c c\u00f9ng k\u00eanh, h\u1ec7 th\u1ed1ng s\u1ebd th\u1ef1c hi\u1ec7n ki\u1ec3m tra \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng. Trong tr\u01b0\u1eddng h\u1ee3p tr\u1ea1ng th\u00e1i c\u1ee7a k\u00eanh A v\u1eeba thay \u0111\u1ed5i, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n s\u1ebd ki\u1ec3m tra tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a k\u00eanh B. Khi tr\u1ea1ng th\u00e1i c\u1ee7a B kh\u00e1c v\u1edbi tr\u1ea1ng th\u00e1i tr\u01b0\u1edbc \u0111\u00f3 c\u1ee7a A, h\u01b0\u1edbng s\u1ebd l\u00e0 theo chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3; v\u00e0 t\u00ecnh hu\u1ed1ng ng\u01b0\u1ee3c l\u1ea1i c\u0169ng t\u01b0\u01a1ng t\u1ef1 (khi tr\u1ea1ng th\u00e1i tr\u01b0\u1edbc \u0111\u00f3 c\u1ee7a A gi\u1ed1ng v\u1edbi tr\u1ea1ng th\u00e1i c\u1ee7a B, th\u00ec h\u01b0\u1edbng s\u1ebd l\u00e0 ng\u01b0\u1ee3c chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3). Logic n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho b\u1ed9 \u0111\u1ebfm ph\u1ea7n c\u1ee9ng ho\u1eb7c th\u00f4ng qua ph\u1ea7n m\u1ec1m b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ng\u1eaft ngo\u1ea1i vi \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c \u0111\u00e1ng tin c\u1eady. S\u1ed1 l\u01b0\u1ee3ng d\u00e2y (v\u00ed d\u1ee5: 3 d\u00e2y, 5 d\u00e2y) m\u00e0 b\u1ed9 m\u00e3 h\u00f3a mang theo li\u00ean quan \u0111\u1ebfn lo\u1ea1i \u0111\u1ea7u ra c\u1ee7a n\u00f3 (b\u1ed9 m\u00e3 h\u00f3a c\u00f3 \u0111\u1ea7u ra lo\u1ea1i DC ph\u1ea3i c\u00f3 nhi\u1ec1u d\u00e2y h\u01a1n), kh\u1ea3 n\u0103ng ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng c\u1ee7a n\u00f3, v\u00e0 li\u1ec7u b\u1ed9 m\u00e3 h\u00f3a c\u00f3 t\u00edn hi\u1ec7u Z hay \u0111\u1ea7u ra vi sai hay kh\u00f4ng.<\/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\/08\/what-is-a-rotary-encoder4.webp\" class=\"wp-image-7516\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder4.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder4-300x225.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/what-is-a-rotary-encoder4-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt quan tr\u1ecdng khi l\u1ef1a ch\u1ecdn b\u1ed9 m\u00e3 h\u00f3a quay<\/h2>\n\n\n\n<p>C\u1ea7n ti\u1ebfn h\u00e0nh ph\u00e2n t\u00edch k\u1ef9 l\u01b0\u1ee1ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nhu c\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng, t\u1eeb \u0111\u00f3 quy\u1ebft \u0111\u1ecbnh lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Tr\u01b0\u1edbc khi \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh ch\u1ecdn lo\u1ea1i b\u1ed9 m\u00e3 h\u00f3a t\u0103ng d\u1ea7n (so v\u1edbi lo\u1ea1i tuy\u1ec7t \u0111\u1ed1i), c\u00f3 m\u1ed9t s\u1ed1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt quan tr\u1ecdng m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u1ea7n ph\u1ea3i xem x\u00e9t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ngh\u1ecb quy\u1ebft (PPR\/CPR):<\/strong> \u0110\u00f3 ch\u00ednh l\u00e0 s\u1ed1 xung ho\u1eb7c s\u1ed1 v\u00f2ng quay. \u0110\u1ed9 ph\u00e2n gi\u1ea3i cao h\u01a1n cho ph\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n trong c\u00e1c ph\u00e9p \u0111o, nh\u01b0ng \u0111i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i s\u1eed d\u1ee5ng b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f3 kh\u1ea3 n\u0103ng truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 cao h\u01a1n. B\u1ed9 \u0111i\u1ec1u khi\u1ec3n n\u00e0y ph\u1ea3i \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c:<\/strong> Kh\u00f4ng n\u00ean nh\u1ea7m l\u1eabn \u0111i\u1ec1u n\u00e0y v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c. \u0110\u1ed9 ch\u00ednh x\u00e1c l\u00e0 sai s\u1ed1 l\u1edbn nh\u1ea5t gi\u1eefa v\u1ecb tr\u00ed do b\u1ed9 m\u00e3 h\u00f3a ch\u1ec9 ra v\u00e0 v\u1ecb tr\u00ed v\u1eadt l\u00fd th\u1ef1c t\u1ebf. Th\u00f4ng th\u01b0\u1eddng, ng\u01b0\u1eddi ta \u0111o l\u01b0\u1eddng \u0111\u1ed9 ch\u00ednh x\u00e1c n\u00e0y b\u1eb1ng ph\u00fat cung ho\u1eb7c gi\u00e2y cung.<\/li>\n\n\n\n<li><strong>\u0110\u1ea7u ra<\/strong><strong> Lo\u1ea1i:<\/strong> Lo\u1ea1i \u0111\u1ea7u ra \u0111\u01b0\u1ee3c ch\u1ecdn (Push-Pull, TTL ho\u1eb7c Open Collector) ph\u1ea3i t\u01b0\u01a1ng th\u00edch v\u1edbi m\u1ea1ch \u0111\u1ea7u v\u00e0o c\u1ee7a b\u1ed9 \u0111i\u1ec1u khi\u1ec3n nh\u01b0 \u0111\u00e3 tr\u00ecnh b\u00e0y \u1edf tr\u00ean.<\/li>\n\n\n\n<li><strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed:<\/strong> \u0110i\u1ec1u n\u00e0y (bao g\u1ed3m \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c, ki\u1ec3u l\u1eafp \u0111\u1eb7t (v\u00ed d\u1ee5: l\u1eafp b\u1eb1ng m\u1eb7t b\u00edch, l\u1eafp b\u1eb1ng servo) v\u00e0 k\u00edch th\u01b0\u1edbc th\u1ef1c t\u1ebf c\u1ee7a th\u00e2n b\u1ed9 m\u00e3 h\u00f3a). N\u00f3 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1ec1 m\u1eb7t k\u00edch th\u01b0\u1edbc v\u1edbi thi\u1ebft k\u1ebf c\u1ee7a m\u00e1y.<\/li>\n\n\n\n<li><strong>M\u00f4i tr\u01b0\u1eddng<\/strong><strong> Ch\u1ec9 s\u1ed1 b\u1ea3o v\u1ec7 (Ch\u1ec9 s\u1ed1 IP):<\/strong> Ch\u1ec9 s\u1ed1 IP (Ingress Protection) l\u00e0 ti\u00eau chu\u1ea9n \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng b\u1ee5i v\u00e0 ch\u1ed1ng n\u01b0\u1edbc c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a. Thi\u1ebft b\u1ecb n\u00e0y \u0111\u1ea1t c\u1ea5p \u0111\u1ed9 IP65, c\u00f3 ngh\u0129a l\u00e0 n\u00f3 ho\u00e0n to\u00e0n k\u00edn b\u1ee5i v\u00e0 ch\u1ed1ng \u0111\u01b0\u1ee3c tia n\u01b0\u1edbc phun, do \u0111\u00f3 c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng trong h\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p. Ch\u1ec9 s\u1ed1 ch\u1ed1ng rung v\u00e0 ch\u1ed1ng va \u0111\u1eadp: \u0110\u00e2y c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c m\u00e1y m\u00f3c ph\u1ea3i ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc l\u1edbn.<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t ng\u01b0\u1eddi nghi\u1ec7p d\u01b0 s\u1edf h\u1eefu m\u00e1y in 3D \u0111\u1ec3 b\u00e0n c\u00f3 th\u1ec3 s\u1ebd b\u1ecf qua chi ph\u00ed cao v\u00e0 s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng c\u01a1 kh\u00ed \u0111\u01a1n gi\u1ea3n h\u01a1n ho\u1eb7c b\u1ed9 m\u00e3 h\u00f3a quang h\u1ecdc c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ea5p. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ed9t k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf \u0111ang ph\u00e1t tri\u1ec3n c\u00e1nh tay robot \u0111\u1ec3 l\u1eafp \u0111\u1eb7t tr\u00ean d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ph\u1ea3i ch\u00fa tr\u1ecdng \u0111\u1ebfn \u0111\u1ecbnh v\u1ecb tuy\u1ec7t \u0111\u1ed1i, \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 ch\u1ec9 s\u1ed1 IP \u0111\u1ee7 cao, do \u0111\u00f3 s\u1ebd c\u00f3 xu h\u01b0\u1edbng l\u1ef1a ch\u1ecdn b\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i t\u1eeb t\u00ednh ho\u1eb7c quang h\u1ecdc c\u00f3 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt cao.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p v\u00e0 ti\u00eau d\u00f9ng<\/h2>\n\n\n\n<p>C\u00e1c b\u1ed9 m\u00e3 h\u00f3a quay c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 v\u00e0 h\u1ea7u nh\u01b0 m\u1ecdi ng\u00e0nh c\u00f4ng ngh\u1ec7.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/strong><strong>:<\/strong> B\u1ed9 m\u00e3 h\u00f3a l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t trong h\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i c\u1ee7a \u0111\u1ed9ng c\u01a1. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf ph\u1ea7n sau tr\u1ee5c truy\u1ec1n \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 servo, \u0111\u1ed9ng c\u01a1 b\u01b0\u1edbc ho\u1eb7c \u0111\u1ed9ng c\u01a1 m\u1ed9t chi\u1ec1u \u0111\u1ec3 truy\u1ec1n th\u00f4ng tin v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 v\u1ecb tr\u00ed \u0111\u1ebfn b\u1ed9 \u0111i\u1ec1u khi\u1ec3n, t\u1eeb \u0111\u00f3 gi\u00fap n\u00e2ng cao kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n b\u0103ng t\u1ea3i, m\u00e1y \u0111\u00f3ng g\u00f3i v\u00e0 c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t t\u1ef1 \u0111\u1ed9ng.<\/li>\n\n\n\n<li><strong>H\u1ec7 th\u1ed1ng robot:<\/strong> C\u00e1nh tay robot \u0111a tr\u1ee5c s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a tuy\u1ec7t \u0111\u1ed1i d\u1ecdc theo m\u1ed7i kh\u1edbp \u0111\u1ec3 \u0111o ch\u00ednh x\u00e1c c\u1ea3 g\u00f3c v\u00e0 v\u1ecb tr\u00ed c\u1ee7a t\u1eebng \u0111o\u1ea1n. Th\u00f4ng tin n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a b\u1ed9 ph\u1eadn th\u1ef1c thi cu\u1ed1i c\u00f9ng c\u1ee7a robot, \u0111\u1ed3ng th\u1eddi gi\u00fap b\u1ed9 \u0111i\u1ec1u khi\u1ec3n th\u1ef1c hi\u1ec7n c\u00e1c chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh x\u00e1c.<\/li>\n\n\n\n<li><strong>CNC<\/strong><strong> &amp; In 3D:<\/strong> In \u1ea5n 3D Trong c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n s\u1ed1 b\u1eb1ng m\u00e1y t\u00ednh (CNC) v\u00e0 m\u00e1y in 3D, c\u00e1c b\u1ed9 m\u00e3 h\u00f3a \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean c\u00e1c \u0111\u1ed9ng c\u01a1 servo \u0111i\u1ec1u khi\u1ec3n tr\u1ee5c v\u00edt bi v\u00e0 khung d\u1ea7m. Ch\u00fang \u0111\u1ea3m b\u1ea3o \u0111\u1ea7u gia c\u00f4ng ho\u1eb7c v\u00f2i phun in ho\u1ea1t \u0111\u1ed9ng v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c \u1edf m\u1ee9c micromet.<\/li>\n\n\n\n<li><strong>Ng\u00e0nh \u00f4 t\u00f4:<\/strong> Trong c\u00e1c m\u1eabu \u00f4 t\u00f4 hi\u1ec7n \u0111\u1ea1i, b\u1ed9 m\u00e3 h\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, t\u1eeb vi\u1ec7c c\u1ea3m bi\u1ebfn g\u00f3c quay v\u00f4-l\u0103ng trong h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t \u1ed5n \u0111\u1ecbnh \u0111i\u1ec7n t\u1eed cho \u0111\u1ebfn c\u00e1c n\u00fat \u0111i\u1ec1u khi\u1ec3n c\u00f3 ph\u1ea3n h\u1ed3i x\u00fac gi\u00e1c c\u1ee7a h\u1ec7 th\u1ed1ng th\u00f4ng tin gi\u1ea3i tr\u00ed.<\/li>\n\n\n\n<li><strong>\u0110i\u1ec7n t\u1eed ti\u00eau d\u00f9ng<\/strong><strong>:<\/strong> M\u1ed9t b\u1ed9 m\u00e3 h\u00f3a t\u0103ng d\u1ea7n gi\u00e1 r\u1ebb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong b\u00e1nh xe cu\u1ed9n c\u1ee7a chu\u1ed9t m\u00e1y t\u00ednh \u2014 \u1edf quy m\u00f4 nh\u1ecf h\u01a1n. C\u00e1c b\u1ed9 m\u00e3 h\u00f3a c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 mang l\u1ea1i c\u1ea3m gi\u00e1c xoay m\u01b0\u1ee3t m\u00e0 v\u00e0 li\u00ean t\u1ee5c cho n\u00fam \u0111i\u1ec1u ch\u1ec9nh \u00e2m l\u01b0\u1ee3ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u00e2m thanh cao c\u1ea5p v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c k\u1ef9 thu\u1eadt s\u1ed1.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch k\u1ebft n\u1ed1i b\u1ed9 m\u00e3 h\u00f3a quay v\u1edbi vi \u0111i\u1ec1u khi\u1ec3n<\/h2>\n\n\n\n<p>M\u1ed9t trong nh\u1eefng nhi\u1ec7m v\u1ee5 k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh nh\u1ea5t l\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 k\u1ebft n\u1ed1i lo\u1ea1i c\u1ea3m bi\u1ebfn v\u1ecb tr\u00ed n\u00e0y v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u c\u1ee7a n\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n Arduino, Raspberry Pi ho\u1eb7c B\u1ed9 \u0111i\u1ec1u khi\u1ec3n logic l\u1eadp tr\u00ecnh (PLC). Vi\u1ec7c n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac \u0111i\u1ec7n ph\u00f9 h\u1ee3p v\u00e0 m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ec3 \u0111\u1ecdc c\u00e1c t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<p>Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c \u0111\u1ecbnh r\u00f5 c\u00e1c m\u1ee9c \u0111i\u1ec7n \u00e1p. M\u1ed9t b\u1ed9 m\u00e3 h\u00f3a c\u00f4ng nghi\u1ec7p 24 V HTL c\u1ea7n c\u00f3 giao di\u1ec7n 5 V. \u0110\u1ed1i v\u1edbi c\u00e1c \u0111\u1ea7u ra ki\u1ec3u thu m\u1edf (open-collector), ph\u1ea3i l\u1eafp \u0111\u1eb7t c\u00e1c \u0111i\u1ec7n tr\u1edf b\u00ean ngo\u00e0i \u0111\u1ec3 k\u00e9o m\u1ee9c \u0111i\u1ec7n \u00e1p l\u00ean cao nh\u1eb1m \u0111\u1ea3m b\u1ea3o m\u1ee9c cao \u1ed5n \u0111\u1ecbnh trong c\u00e1c kho\u1ea3ng th\u1eddi gian m\u00e0 \u0111\u1ea7u ra kh\u00f4ng \u0111ang \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n<p>Ng\u1eaft ph\u1ea7n c\u1ee9ng cung c\u1ea5p ph\u01b0\u01a1ng ph\u00e1p d\u1ef1a tr\u00ean ph\u1ea7n m\u1ec1m hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 \u0111\u1ecdc d\u1eef li\u1ec7u t\u1eeb b\u1ed9 m\u00e3 h\u00f3a. C\u00e1c ch\u00e2n tr\u00ean vi \u0111i\u1ec1u khi\u1ec3n m\u00e0 \u0111\u1ea7u ra c\u1ee7a k\u00eanh A v\u00e0 B \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u1ec1u h\u1ed7 tr\u1ee3 ng\u1eaft. M\u1ed7i c\u1ea1nh t\u0103ng v\u00e0 c\u1ea1nh gi\u1ea3m c\u1ee7a t\u00edn hi\u1ec7u s\u1ebd k\u00edch ho\u1ea1t m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh x\u1eed l\u00fd ng\u1eaft (ISR). Ch\u01b0\u01a1ng tr\u00ecnh x\u1eed l\u00fd ng\u1eaft c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd kho (ISR) Trong ISR, logic gi\u1ea3i m\u00e3 x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 t\u0103ng ho\u1eb7c gi\u1ea3m bi\u1ebfn \u0111\u1ebfm v\u1ecb tr\u00ed. K\u1ef9 thu\u1eadt n\u00e0y v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p g\u1ecdi l\u00e0 \"polling\" (ki\u1ec3m tra l\u1eb7p \u0111i l\u1eb7p l\u1ea1i tr\u1ea1ng th\u00e1i c\u1ee7a ch\u00e2n trong m\u1ed9t v\u00f2ng l\u1eb7p), v\u1ed1n c\u00f3 th\u1ec3 b\u1ecf s\u00f3t m\u1ed9t xung, ngay c\u1ea3 khi ch\u01b0\u01a1ng tr\u00ecnh ch\u00ednh \u0111ang b\u1eadn x\u1eed l\u00fd t\u00e1c v\u1ee5 kh\u00e1c.<\/p>\n\n\n\n<p>C\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p bao g\u1ed3m vi\u1ec7c n\u1ed1i d\u00e2y sai (tr\u1ed9n l\u1eabn c\u00e1c k\u00eanh A\/B ho\u1eb7c d\u00e2y pha\/d\u00e2y trung t\u00ednh) v\u00e0 kh\u00f4ng t\u00ednh \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng dao \u0111\u1ed9ng t\u00edn hi\u1ec7u khi s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a c\u01a1 h\u1ecdc. S\u1eed d\u1ee5ng t\u1ee5 \u0111i\u1ec7n nh\u1ecf trong ph\u1ea7n c\u1ee9ng ho\u1eb7c theo d\u00f5i trong v\u00e0i mili gi\u00e2y v\u00e0 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i trong ph\u1ea7n m\u1ec1m b\u1eb1ng c\u00e1ch ph\u1ea3n h\u1ed3i theo thu\u1eadt to\u00e1n \u201cch\u1ed1ng dao \u0111\u1ed9ng\u201d. Hi\u1ec7n t\u01b0\u1ee3ng dao \u0111\u1ed9ng c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng tr\u1edf kh\u00e1ng t\u01b0\u01a1ng \u0111\u1ed1i cao tr\u00ean \u0111\u01b0\u1eddng t\u00edn hi\u1ec7u chung gi\u1eefa nhi\u1ec1u thi\u1ebft b\u1ecb. Vi\u1ec7c tu\u00e2n th\u1ee7 quy tr\u00ecnh c\u1ee5 th\u1ec3 v\u1ec1 \u0111\u1ea5u d\u00e2y, l\u1eadp tr\u00ecnh v\u00e0 ki\u1ec3m th\u1eed l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao OMCH l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ed9 m\u00e3 h\u00f3a \u0111\u00e1ng tin c\u1eady c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n<p>B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 t\u00ecm hi\u1ec3u l\u00fd thuy\u1ebft v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a quay. B\u01b0\u1edbc th\u1ee9 hai, nh\u01b0ng c\u0169ng kh\u00f4ng k\u00e9m ph\u1ea7n quan tr\u1ecdng, l\u00e0 t\u00ecm ki\u1ebfm m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady v\u00e0 hi\u1ec7u su\u1ea5t m\u00e0 h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n c\u1ea7n.<\/p>\n\n\n\n<p>OMCH l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t chuy\u00ean nghi\u1ec7p v\u1edbi h\u01a1n 10 n\u0103m kinh nghi\u1ec7m trong l\u0129nh v\u1ef1c \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n. Ch\u00fang t\u00f4i \u0111\u00e3 v\u00e0 \u0111ang cung c\u1ea5p c\u00e1c linh ki\u1ec7n hi\u1ec7u su\u1ea5t cao, ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady ngay c\u1ea3 trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng kh\u1eafc nghi\u1ec7t nh\u1ea5t.<\/p>\n\n\n\n<p>D\u00f2ng s\u1ea3n ph\u1ea9m b\u1ed9 m\u00e3 h\u00f3a quay c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u kh\u1eaft khe c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n \u0111\u1ea1i. Ch\u00fang t\u00f4i cung c\u1ea5p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0110\u1ed9 ph\u00e2n gi\u1ea3i cao<\/strong><strong> v\u00e0 c\u00e1c m\u00f4 h\u00ecnh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao:<\/strong> \u0110\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c nh\u01b0 m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf.<\/li>\n\n\n\n<li><strong>C\u00e1c \u0111\u1ea7u ra t\u00edn hi\u1ec7u \u0111a d\u1ea1ng:<\/strong> C\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i \u0111\u1ea7u ra ch\u00ednh, bao g\u1ed3m Push-Pull (HTL), B\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u TTL v\u00e0 \u0110\u1ea7u ra thu m\u1edf, nh\u1eb1m \u0111\u1ea3m b\u1ea3o t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi PLC ho\u1eb7c ph\u1ea7n c\u1ee9ng \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n c\u00f3 c\u1ee7a qu\u00fd kh\u00e1ch.<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 b\u1ec1n \u0111\u1ea1t ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p:<\/strong> V\u1edbi ch\u1ec9 s\u1ed1 IP cao v\u00e0 k\u1ebft c\u1ea5u ch\u1eafc ch\u1eafn, c\u00e1c b\u1ed9 m\u00e3 h\u00f3a c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c rung \u0111\u1ed9ng, c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m v\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 trong m\u00f4i tr\u01b0\u1eddng nh\u00e0 m\u00e1y.<\/li>\n<\/ul>\n\n\n\n<p>D\u00f9 m\u00e1y m\u00f3c c\u1ee7a qu\u00fd kh\u00e1ch \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 m\u00e1y CNC ti\u00ean ti\u1ebfn, robot hay c\u00e1c quy tr\u00ecnh t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p, gi\u1ea3i ph\u00e1p m\u00e0 ch\u00fang t\u00f4i cung c\u1ea5p lu\u00f4n \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady b\u1ea5t k\u1ec3 m\u1ee5c \u0111\u00edch \u1ee9ng d\u1ee5ng l\u00e0 g\u00ec. Ch\u00fang t\u00f4i cam k\u1ebft h\u1ed7 tr\u1ee3 s\u1ea3n ph\u1ea9m ph\u1ea7n c\u1ee9ng c\u1ee7a m\u00ecnh b\u1eb1ng d\u1ecbch v\u1ee5 chuy\u00ean nghi\u1ec7p, nh\u1eb1m gi\u00fap qu\u00fd kh\u00e1ch l\u1ef1a ch\u1ecdn b\u1ed9 m\u00e3 h\u00f3a ph\u00f9 h\u1ee3p nh\u1ea5t cho d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<p>T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m b\u1ed9 m\u00e3 h\u00f3a chuy\u00ean nghi\u1ec7p ch\u1ea5t l\u01b0\u1ee3ng cao c\u1ee7a ch\u00fang t\u00f4i c\u0169ng nh\u01b0 c\u00e1ch ch\u00fang t\u00f4i c\u00f3 th\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng c\u1ee7a qu\u00fd kh\u00e1ch t\u1ea1i <a href=\"https:\/\/www.omch.com\/vi\">https:\/\/www.omch.com<\/a>. Ch\u00fang t\u00f4i s\u1eb5n s\u00e0ng cung c\u1ea5p cho qu\u00fd kh\u00e1ch c\u00e1c d\u1ecbch v\u1ee5 t\u01b0 v\u1ea5n l\u1ef1a ch\u1ecdn v\u00e0 th\u1eed nghi\u1ec7m mi\u1ec5n ph\u00ed (m\u1eabu th\u1eed).<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9 ch\u00ednh x\u00e1c hi\u1ec7n nay l\u00e0 m\u1ed9t y\u00eau c\u1ea7u thi\u1ebft y\u1ebfu trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt ng\u00e0y nay, n\u01a1i kh\u00f4ng c\u00f3 g\u00ec l\u00e0 th\u1eeba th\u00e3i. Trong t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p, \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c, vi\u1ec7c ki\u1ec3m so\u00e1t chuy\u1ec3n \u0111\u1ed9ng l\u00e0 ho\u00e0n to\u00e0n kh\u1ea3 thi, nh\u01b0ng n\u00f3 ph\u1ea3i \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c. Y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ee7a kh\u1ea3 n\u0103ng n\u00e0y ch\u00ednh l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn c\u01a1 \u0111i\u1ec7n kh\u00f4ng th\u1ec3 thi\u1ebfu: b\u1ed9 m\u00e3 h\u00f3a quay. [\u2026]<\/p>","protected":false},"author":4,"featured_media":7513,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"What is a Rotary Encoder? Learn About Its Functions","_seopress_titles_desc":"Learn what is a rotary encoder and how it works. Explore the different types and their applications in various industries on our blog today!","_seopress_robots_index":"","footnotes":""},"categories":[46],"tags":[],"class_list":["post-7509","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\/7509","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=7509"}],"version-history":[{"count":4,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7509\/revisions"}],"predecessor-version":[{"id":8792,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7509\/revisions\/8792"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media\/7513"}],"wp:attachment":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media?parent=7509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/categories?post=7509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/tags?post=7509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}