{"id":43355,"date":"2024-11-21T15:27:19","date_gmt":"2024-11-21T20:27:19","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-sound-can-clean-weld-and-more-the-wonders-of-piezoelectric-transducers\/"},"modified":"2025-01-21T07:13:39","modified_gmt":"2025-01-21T12:13:39","slug":"how-sound-can-clean-weld-and-more-the-wonders-of-piezoelectric-transducers","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-sound-can-clean-weld-and-more-the-wonders-of-piezoelectric-transducers\/","title":{"rendered":"\u00c2m thanh l\u00e0m s\u1ea1ch m\u1ed1i h\u00e0n: K\u1ef3 di\u1ec7u c\u1ee7a \u00e1p \u0111i\u1ec7n"},"content":{"rendered":"<p>\u00c2m thanh, th\u1ee9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi c\u1ea3m nh\u1eadn th\u00ednh gi\u00e1c, l\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m s\u1ea1ch, th\u1eadm ch\u00ed l\u00e0 tinh ch\u1ec9nh c\u00e1c m\u1ed1i h\u00e0n. \u0110i\u1ec1u n\u00e0y nghe c\u00f3 v\u1ebb kh\u00f3 tin, nh\u01b0ng l\u1ea1i l\u00e0 s\u1ef1 th\u1eadt nh\u1edd v\u00e0o s\u1ef1 k\u1ef3 di\u1ec7u c\u1ee7a c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n.  Ch\u00fang ta s\u1ebd c\u00f9ng kh\u00e1m ph\u00e1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y v\u00e0 nh\u1eefng \u1ee9ng d\u1ee5ng tuy\u1ec7t v\u1eddi c\u1ee7a n\u00f3.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n<\/h3>\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n l\u00e0 nh\u1eefng thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n th\u00e0nh n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc d\u01b0\u1edbi d\u1ea1ng s\u00f3ng \u00e2m, v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.  Khi \u00e1p m\u1ed9t \u0111i\u1ec7n \u00e1p v\u00e0o v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, n\u00f3 s\u1ebd thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng, t\u1ea1o ra c\u00e1c rung \u0111\u1ed9ng. T\u1ea7n s\u1ed1 c\u1ee7a rung \u0111\u1ed9ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i t\u1ea7n s\u1ed1 c\u1ee7a \u0111i\u1ec7n \u00e1p \u0111\u1eb7t v\u00e0o.  Ch\u00ednh nh\u1eefng rung \u0111\u1ed9ng n\u00e0y, khi \u0111\u01b0\u1ee3c truy\u1ec1n v\u00e0o m\u00f4i tr\u01b0\u1eddng nh\u01b0 n\u01b0\u1edbc ho\u1eb7c dung d\u1ecbch t\u1ea9y r\u1eeda, t\u1ea1o ra c\u00e1c s\u00f3ng si\u00eau \u00e2m, n\u1ec1n t\u1ea3ng cho vi\u1ec7c l\u00e0m s\u1ea1ch m\u1ed1i h\u00e0n.<\/p>\n<h3>L\u00e0m s\u1ea1ch m\u1ed1i h\u00e0n b\u1eb1ng s\u00f3ng si\u00eau \u00e2m<\/h3>\n<p>S\u00f3ng si\u00eau \u00e2m, v\u1edbi t\u1ea7n s\u1ed1 cao h\u01a1n ng\u01b0\u1ee1ng nghe c\u1ee7a con ng\u01b0\u1eddi, t\u1ea1o ra h\u00e0ng tri\u1ec7u bong b\u00f3ng kh\u00ed nh\u1ecf li ti trong dung d\u1ecbch t\u1ea9y r\u1eeda th\u00f4ng qua hi\u1ec7n t\u01b0\u1ee3ng cavitation. C\u00e1c bong b\u00f3ng n\u00e0y implodes (n\u1ed5 trong l\u00f2ng ch\u1ea5t l\u1ecfng) v\u1edbi m\u1ed9t l\u1ef1c c\u1ef1c m\u1ea1nh, \u0111\u1ee7 \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t b\u1ea9n, d\u1ea7u m\u1ee1, oxit v\u00e0 c\u00e1c t\u1ea1p ch\u1ea5t kh\u00e1c b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t m\u1ed1i h\u00e0n m\u00e0 kh\u00f4ng g\u00e2y t\u1ed5n h\u1ea1i \u0111\u1ebfn v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 v\u1edbi c\u00e1c m\u1ed1i h\u00e0n ph\u1ee9c t\u1ea1p, nh\u1eefng n\u01a1i m\u00e0 vi\u1ec7c l\u00e0m s\u1ea1ch b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng g\u1eb7p kh\u00f3 kh\u0103n.<\/p>\n<h3>C\u00e1c \u01b0u \u0111i\u1ec3m c\u1ee7a vi\u1ec7c l\u00e0m s\u1ea1ch m\u1ed1i h\u00e0n b\u1eb1ng s\u00f3ng si\u00eau \u00e2m<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hi\u1ec7u qu\u1ea3 cao<\/td>\n<td>Lo\u1ea1i b\u1ecf tri\u1ec7t \u0111\u1ec3 c\u00e1c ch\u1ea5t b\u1ea9n c\u1ee9ng \u0111\u1ea7u.<\/td>\n<\/tr>\n<tr>\n<td>An to\u00e0n<\/td>\n<td>Kh\u00f4ng g\u00e2y t\u1ed5n h\u1ea1i \u0111\u1ebfn v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n.<\/td>\n<\/tr>\n<tr>\n<td>Ti\u1ebft ki\u1ec7m th\u1eddi gian<\/td>\n<td>Quy tr\u00ecnh l\u00e0m s\u1ea1ch nhanh ch\u00f3ng.<\/td>\n<\/tr>\n<tr>\n<td>Th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/td>\n<td>S\u1eed d\u1ee5ng dung d\u1ecbch t\u1ea9y r\u1eeda \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng.<\/td>\n<\/tr>\n<tr>\n<td>Linh ho\u1ea1t<\/td>\n<td>\u00c1p d\u1ee5ng \u0111\u01b0\u1ee3c cho nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u v\u00e0 h\u00ecnh d\u1ea1ng m\u1ed1i h\u00e0n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng kh\u00e1c c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n<\/h3>\n<p>Ngo\u00e0i l\u00e0m s\u1ea1ch m\u1ed1i h\u00e0n, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n c\u00f2n c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c trong c\u00f4ng nghi\u1ec7p, y t\u1ebf v\u00e0 \u0111\u1eddi s\u1ed1ng, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li><strong>Ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y:<\/strong>  Ph\u00e1t hi\u1ec7n c\u00e1c khuy\u1ebft t\u1eadt b\u00ean trong v\u1eadt li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n ph\u00e1 h\u1ee7y ch\u00fang.<\/li>\n<li><strong>Y t\u1ebf:<\/strong>  S\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb si\u00eau \u00e2m ch\u1ea9n \u0111o\u00e1n h\u00ecnh \u1ea3nh.<\/li>\n<li><strong>\u0110o l\u01b0\u1eddng:<\/strong> \u0110o kho\u1ea3ng c\u00e1ch, \u00e1p su\u1ea5t v\u00e0 c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd kh\u00e1c.<\/li>\n<\/ul>\n<h3>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n v\u00e0 t\u01b0\u01a1ng lai<\/h3>\n<p>V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00f4ng ngh\u1ec7, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n \u0111ang ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn v\u1ec1 hi\u1ec7u su\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng.  Vi\u1ec7c nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n m\u1edbi, c\u00f9ng v\u1edbi s\u1ef1 k\u1ebft h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 kh\u00e1c, h\u1ee9a h\u1eb9n s\u1ebd m\u1edf ra nhi\u1ec1u ti\u1ec1m n\u0103ng to l\u1edbn h\u01a1n n\u1eefa cho b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n trong t\u01b0\u01a1ng lai.<\/p>\n<p>T\u1eeb vi\u1ec7c l\u00e0m s\u1ea1ch m\u1ed1i h\u00e0n \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf v\u00e0 c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n \u0111\u00e3 v\u00e0 \u0111ang ch\u1ee9ng minh t\u1ea7m quan tr\u1ecdng c\u1ee7a m\u00ecnh trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i.  S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa khoa h\u1ecdc v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt \u0111i\u1ec7n \u0111\u00e3 t\u1ea1o ra m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd, m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi m\u1ebb v\u00e0 \u0111\u00f3ng g\u00f3p \u0111\u00e1ng k\u1ec3 v\u00e0o s\u1ef1 ti\u1ebfn b\u1ed9 c\u1ee7a khoa h\u1ecdc c\u00f4ng ngh\u1ec7.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c2m thanh, th\u1ee9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi c\u1ea3m nh\u1eadn th\u00ednh gi\u00e1c, l\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m s\u1ea1ch, th\u1eadm ch\u00ed l\u00e0 tinh ch\u1ec9nh c\u00e1c m\u1ed1i h\u00e0n. \u0110i\u1ec1u n\u00e0y nghe c\u00f3 v\u1ebb kh\u00f3 tin, nh\u01b0ng l\u1ea1i l\u00e0 s\u1ef1 th\u1eadt nh\u1edd v\u00e0o s\u1ef1 k\u1ef3 di\u1ec7u c\u1ee7a c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n. Ch\u00fang ta s\u1ebd c\u00f9ng kh\u00e1m<\/p>\n","protected":false},"author":1,"featured_media":23741,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-43355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/43355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/comments?post=43355"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/43355\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/23741"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=43355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=43355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=43355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}