{"id":6247134,"date":"2022-01-10T06:46:16","date_gmt":"2022-01-10T06:46:16","guid":{"rendered":"https:\/\/yp.vn\/?p=6247134"},"modified":"2022-01-10T13:55:37","modified_gmt":"2022-01-10T06:55:37","slug":"4-giai-doan-hong-cua-bac-dan","status":"publish","type":"post","link":"https:\/\/yp.vn\/4-giai-doan-hong-cua-bac-dan\/","title":{"rendered":"4 Giai \u0111o\u1ea1n h\u1ecfng c\u1ee7a b\u1ea1c \u0111\u1ea1n"},"content":{"rendered":"<blockquote><p><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c <a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/bac-dan-vong-bi-802\/\">v\u00f2ng bi<\/a> s\u1eafp h\u1ecfng? N\u00f3 kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i v\u0129nh vi\u1ec5n v\u00e0 c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng b\u1ea5t c\u1ee9 l\u00fac n\u00e0o n\u1ebfu b\u1ea1n kh\u00f4ng th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba th\u00edch h\u1ee3p, v\u1eady n\u00ean b\u1ea1n c\u1ea7n bi\u1ebft c\u00e1c d\u1ea5u hi\u1ec7u cho th\u1ea5y v\u00f2ng bi s\u1eafp h\u1ecfng. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng nhau xem qua v\u1ec1 4 giai \u0111o\u1ea1n h\u1ecfng c\u1ee7a <a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/bac-dan-vong-bi-802\/\">v\u00f2ng bi \u2013 b\u1ea1c \u0111\u1ea1n<\/a> v\u00e0 c\u00e1ch n\u00f3 hi\u1ec7n th\u1ecb tr\u00ean quang ph\u1ed5 nh\u00e9.<\/strong><\/p><\/blockquote>\n<p><em>L\u1ed7i v\u00f2ng bi \u0111\u01b0\u1ee3c chia l\u00e0m b\u1ed1n giai \u0111o\u1ea1n, d\u1ef1a tr\u00ean\u00a0<\/em><em>b\u1ea1c <\/em><em>\u0111\u1ea1n\u00a0 t\u00e1c \u0111\u1ed9ng th\u1ebf n\u00e0o \u0111\u1ebfn c\u00e1c r\u00e3nh trong ho\u1eb7c ngo\u00e0i v\u00f2ng bi.<\/em><\/p>\n<p>\u1ede giai \u0111o\u1ea1n \u0111\u00e2u ti\u00ean, c\u00e1c v\u1ebft r\u1ed7 nh\u1ecf xu\u1ea5t hi\u1ec7n trong c\u00e1c r\u00e3nh v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c b\u1ea1c \u0111\u1ea1n\u00a0 xu\u1ea5t hi\u1ec7n t\u1ea7n s\u1ed1 si\u00eau \u00e2m trong m\u1ed9t quang ph\u1ed5. \u1ede giai 1 th\u00ec v\u00f2ng bi c\u1ee7a b\u1ea1n s\u1ebd v\u1eabn ho\u1ea1t \u0111\u00f4ng b\u00ecnh th\u01b0\u1eddng. Nh\u01b0\u1ee3c \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n trong kho\u1ea3ng t\u1eeb 20.000-60.000 Hz, d\u00f9 n\u00f3 ch\u01b0a \u0111\u1ebfn m\u1ee9c m\u00e0 b\u1ea1n c\u1ea7n ph\u1ea3i thay th\u1ebf v\u00f2ng bi, nh\u01b0ng t\u1eeb giai \u0111o\u1ea1n 1 ta c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c v\u00f2ng bi thi\u1ebfu s\u1ef1 b\u00f4i tr\u01a1n gi\u1eefa c\u00e1c r\u00e3nh v\u00e0 v\u00f2ng bi. D\u1ef1a theo k\u1ef9 thu\u1eadt chu\u1ea9n \u0111o\u00e1n thi\u1ebft b\u1ecb b\u1eb1ng ph\u00e2n t\u00edch tung th\u00ec \u201cC\u00e1c t\u1ea7n s\u1ed1 th\u1ec3 hi\u1ec7n l\u1ed7i v\u00f2ng bi s\u1ebd xu\u1ea5t hi\u1ec7n trong ph\u1ed5 HFE nh\u01b0ng s\u1ebd kh\u00f4ng xu\u00e2t hi\u1ec7n trong ph\u1ed5 rung \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng trong giai \u0111o\u1ea1n 1\u201d.<\/p>\n<p>Sang t\u1edbi giai \u0111o\u1ea1n 2, c\u00e1c l\u1ed7i b\u1eaft \u0111\u1ea7u ph\u00e1t ra \u1edf t\u1ea7n s\u1ed1 ri\u00eang c\u1ee7a \u1ed5 tr\u1ee5c. Vi\u1ec7c n\u00e0y th\u01b0\u1eddng x\u1ea3y ra trong kho\u1ea3ng t\u1eeb 500 \u0111\u1ebfn 2000 Hz. C\u00e1c t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean n\u00e0y c\u00f3 th\u1ec3 l\u00e0 do s\u1ef1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a k\u1ebft c\u1ea5u h\u1ed7 tr\u1ee3 \u1ed5 tr\u1ee5c ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a ch\u00ednh \u1ed5 tr\u1ee5c ch\u1eb3ng h\u1ea1n nh\u01b0 r\u00e3nh l\u0103n hay\u00a0<a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/bac-dan-vong-bi-802\/\">b\u1ea1c <\/a><a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/bac-dan-vong-bi-802\/\">\u0111\u1ea1n <\/a> t\u1ea1o th\u00e0nh. C\u00e1c t\u1ea7n s\u1ed1 d\u1ea3i b\u00ean c\u0169ng b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n tr\u00ean v\u00e0 d\u01b0\u1edbi c\u00e1c t\u1ea7n s\u1ed1 n\u00e0y. N\u00ean l\u00ean l\u1ecbch s\u1eeda ch\u1eefa s\u1edbm cho m\u00e1y m\u00f3c trong giai \u0111o\u1ea1n n\u00e0y.<\/p>\n<p>V\u00e0o giai \u0111o\u1ea1n 3, m\u1ee9c \u0111\u1ed9 c\u1ee7a t\u1ea7n s\u1ed1 l\u1ed7i t\u0103ng l\u00ean v\u00e0 s\u00f3ng h\u00e0i xu\u1ea5t hi\u1ec7n tr\u00ean ph\u1ed5. Trong giai \u0111o\u1ea1n n\u00e0y, t\u1ea7n s\u1ed1 l\u1ed7i v\u00e0 s\u00f3ng h\u00e0i t\u0103ng l\u00ean nhi\u1ec1u. N\u1ebfu nh\u01b0 thay th\u1ebf v\u00f2ng bi kh\u00e1c, ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c s\u1ef1 h\u1ecfng h\u00f3c r\u00f5 r\u00e0ng tr\u00ean r\u00e3nh tr\u1ee5c c\u1ee7a v\u00f2ng bi c\u0169. X\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 h\u01b0 h\u1ecfng c\u1ee7a v\u00f2ng bi v\u00e0 thay th\u1ebf ch\u00fang cho c\u1ea3 m\u00e1y m\u00f3c thi\u1ebft y\u1ebfu hay kh\u00f4ng thi\u1ebft y\u1ebfu.<\/p>\n<p>Giai \u0111o\u1ea1n 4, \u0111\u00e2y l\u00e0 ch\u00ednh l\u00e0 giai \u0111o\u1ea1n b\u00e1o hi\u1ec7u cho v\u00f2ng bi \u0111\u00e3 \u0111i \u0111\u1ebfn cu\u1ed1i cu\u1ed9c \u0111\u1eddi. rong giai \u0111o\u1ea1n n\u00e0y, t\u1ea7ng nhi\u1ec5u \u0111\u01b0\u1ee3c n\u00e2ng l\u00ean \u1edf t\u1ea5t c\u1ea3 c\u00e1c t\u1ea7n s\u1ed1, t\u1ea1o ra m\u1ed9t ph\u1ed5 b\u0103ng r\u1ed9ng ng\u1eabu nhi\u00ean. Bi\u00ean \u0111\u1ed9 c\u1ee7a c\u1ea3 ti\u1ebfng \u1ed3n t\u1ea7n s\u1ed1 cao c\u1ee7a s\u00e0n v\u00e0 HFE th\u1ef1c s\u1ef1 c\u00f3 th\u1ec3 gi\u1ea3m, nh\u01b0ng \u0111\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u cho th\u1ea5y \u1ed5 tr\u1ee5c s\u1eafp h\u1ecfng. Hy v\u1ecdng r\u1eb1ng v\u00f2ng bi c\u1ee7a b\u1ea1n kh\u00f4ng bao gi\u1edd \u0111\u1ea1t \u0111\u1ebfn giai \u0111o\u1ea1n n\u00e0y, nh\u01b0ng n\u1ebfu ch\u00fang x\u1ea3y ra th\u00ec b\u1ea1n ph\u1ea3i thay th\u1ebf ch\u00fang ngay l\u1eadp t\u1ee9c.<\/p>\n<p>Mong r\u1eb1ng nh\u1edd b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap c\u00e1c b\u1ea1n ph\u1ea7n n\u00e0o x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c <a href=\"https:\/\/yp.vn\/nganh-nghe\/cong-nghiep-co-khi-cong-nghiep-102\/bac-dan-vong-bi-802\/\">v\u00f2ng bi<\/a> c\u1ee7a m\u00ecnh \u0111ang \u1edf giai \u0111o\u1ea1n n\u00e0o \u0111\u1ec3 l\u00ean l\u1ecbch b\u1ea3o tr\u00ec ch\u00ednh x\u00e1c h\u01a1n. Vi\u1ec7c n\u00e0y c\u0169ng s\u1ebd gi\u00fap cho m\u00e1y m\u00f3c c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru v\u00e0 ch\u00ednh x\u00e1c h\u01a1n v\u1edbi \u00edt th\u1eddi gian ch\u1ebft nh\u1ea5t c\u00f3 th\u1ec3.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c v\u00f2ng bi s\u1eafp h\u1ecfng? N\u00f3 kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i v\u0129nh vi\u1ec5n v\u00e0 c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng b\u1ea5t c\u1ee9 l\u00fac n\u00e0o n\u1ebfu b\u1ea1n kh\u00f4ng th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba th\u00edch h\u1ee3p, v\u1eady n\u00ean b\u1ea1n c\u1ea7n bi\u1ebft c\u00e1c d\u1ea5u hi\u1ec7u cho th\u1ea5y v\u00f2ng bi s\u1eafp h\u1ecfng&#8230;. <a class=\"view-article\" href=\"https:\/\/yp.vn\/4-giai-doan-hong-cua-bac-dan\/\">Xem b\u00e0i vi\u1ebft<\/a><\/p>\n","protected":false},"author":175,"featured_media":6247135,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"footnotes":""},"categories":[2542,2467],"tags":[],"class_list":["post-6247134","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bac-dan-vong-bi","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/6247134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/users\/175"}],"replies":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/comments?post=6247134"}],"version-history":[{"count":0,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/6247134\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media\/6247135"}],"wp:attachment":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media?parent=6247134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/categories?post=6247134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/tags?post=6247134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}