{"id":49772,"date":"2023-04-21T15:41:42","date_gmt":"2023-04-21T20:41:42","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-control-the-driving-frequency-when-working-with-high-power-ultrasonic-transducers\/"},"modified":"2025-01-21T07:15:00","modified_gmt":"2025-01-21T12:15:00","slug":"how-to-control-the-driving-frequency-when-working-with-high-power-ultrasonic-transducers","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-control-the-driving-frequency-when-working-with-high-power-ultrasonic-transducers\/","title":{"rendered":"Ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i si\u00eau \u00e2m c\u00f4ng su\u1ea5t cao"},"content":{"rendered":"<p>Vi\u1ec7c ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m c\u00f4ng su\u1ea5t cao. T\u1ea7n s\u1ed1 l\u00e1i kh\u00f4ng ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn gi\u1ea3m hi\u1ec7u su\u1ea5t, qu\u00e1 nhi\u1ec7t, th\u1eadm ch\u00ed h\u01b0 h\u1ecfng \u0111\u1ea7u d\u00f2. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 k\u1ef9 thu\u1eadt \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i khi l\u00e0m vi\u1ec7c v\u1edbi \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m c\u00f4ng su\u1ea5t cao.<\/p>\n<h3>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng C\u1ee7a \u0110\u1ea7u D\u00f2 Si\u00eau \u00c2m<\/h3>\n<p>\u0110\u1ea7u d\u00f2 si\u00eau \u00e2m ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, 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 si\u00eau \u00e2m v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. T\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a \u0111\u1ea7u d\u00f2 l\u00e0 t\u1ea7n s\u1ed1 m\u00e0 t\u1ea1i \u0111\u00f3 n\u00f3 dao \u0111\u1ed9ng v\u1edbi bi\u00ean \u0111\u1ed9 l\u1edbn nh\u1ea5t. Vi\u1ec7c l\u00e1i \u0111\u1ea7u d\u00f2 \u1edf t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng n\u00e0y l\u00e0 t\u1ed1i \u01b0u \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t.<\/p>\n<h3>C\u00e1c Y\u1ebfu T\u1ed1 \u1ea2nh H\u01b0\u1edfng \u0110\u1ebfn T\u1ea7n S\u1ed1 L\u00e1i<\/h3>\n<p>T\u1ea7n s\u1ed1 l\u00e1i c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a b\u1ea3n th\u00e2n \u0111\u1ea7u d\u00f2 c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u v\u00e0 do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng.<\/li>\n<li><strong>T\u1ea3i:<\/strong> T\u1ea3i tr\u1ecdng t\u00e1c \u0111\u1ed9ng l\u00ean \u0111\u1ea7u d\u00f2, v\u00ed d\u1ee5 nh\u01b0 \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng ho\u1eb7c \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd, c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ea7n s\u1ed1 l\u00e1i.<\/li>\n<li><strong>M\u1ea1ch L\u00e1i:<\/strong> \u0110\u1eb7c t\u00ednh c\u1ee7a m\u1ea1ch l\u00e1i, bao g\u1ed3m c\u1ea3 t\u1ea7n s\u1ed1 t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o, c\u0169ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i.<\/li>\n<\/ul>\n<h3>C\u00e1c Ph\u01b0\u01a1ng Ph\u00e1p Ki\u1ec3m So\u00e1t T\u1ea7n S\u1ed1 L\u00e1i<\/h3>\n<p>C\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m c\u00f4ng su\u1ea5t cao:<\/p>\n<ul>\n<li><strong>S\u1eed d\u1ee5ng M\u1ea1ch Kh\u00f3a Pha (PLL):<\/strong> M\u1ea1ch PLL c\u00f3 th\u1ec3 theo d\u00f5i v\u00e0 \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 l\u00e1i \u0111\u1ec3 duy tr\u00ec s\u1ef1 \u0111\u1ed3ng b\u1ed9 v\u1edbi t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a \u0111\u1ea7u d\u00f2.<\/li>\n<li><strong>\u0110i\u1ec1u Ch\u1ec9nh T\u1ea7n S\u1ed1 \u0110\u1ea7u V\u00e0o:<\/strong>  Vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o c\u1ee7a m\u1ea1ch l\u00e1i cho ph\u00e9p ki\u1ec3m so\u00e1t tr\u1ef1c ti\u1ebfp t\u1ea7n s\u1ed1 l\u00e1i c\u1ee7a \u0111\u1ea7u d\u00f2.<\/li>\n<li><strong>B\u00f9 Nhi\u1ec7t:<\/strong> S\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 k\u1ebft h\u1ee3p v\u1edbi m\u1ea1ch b\u00f9 nhi\u1ec7t \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 l\u00e1i d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/li>\n<\/ul>\n<h3>So S\u00e1nh C\u00e1c Ph\u01b0\u01a1ng Ph\u00e1p Ki\u1ec3m So\u00e1t T\u1ea7n S\u1ed1 L\u00e1i<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Ph\u01b0\u01a1ng Ph\u00e1p<\/th>\n<th>\u01afu \u0110i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0110i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1ea1ch Kh\u00f3a Pha (PLL)<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c cao, t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh<\/td>\n<td>Ph\u1ee9c t\u1ea1p, chi ph\u00ed cao<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec1u Ch\u1ec9nh T\u1ea7n S\u1ed1 \u0110\u1ea7u V\u00e0o<\/td>\n<td>\u0110\u01a1n gi\u1ea3n, d\u1ec5 th\u1ef1c hi\u1ec7n<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c th\u1ea5p, c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh th\u1ee7 c\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td>B\u00f9 Nhi\u1ec7t<\/td>\n<td>Hi\u1ec7u qu\u1ea3 trong vi\u1ec7c gi\u1ea3m \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>C\u1ea7n c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9, ph\u1ee9c t\u1ea1p h\u01a1n so v\u1edbi \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 \u0111\u1ea7u v\u00e0o<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Thi\u1ebft K\u1ebf M\u1ea1ch L\u00e1i Cho \u0110\u1ea7u D\u00f2 Si\u00eau \u00c2m C\u00f4ng Su\u1ea5t Cao<\/h3>\n<p>Thi\u1ebft k\u1ebf m\u1ea1ch l\u00e1i hi\u1ec7u qu\u1ea3 l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i. M\u1ea1ch l\u00e1i c\u1ea7n ph\u1ea3i cung c\u1ea5p \u0111\u1ee7 c\u00f4ng su\u1ea5t cho \u0111\u1ea7u d\u00f2 ho\u1ea1t \u0111\u1ed9ng \u1edf hi\u1ec7u su\u1ea5t cao \u0111\u1ed3ng th\u1eddi cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.  Vi\u1ec7c l\u1ef1a ch\u1ecdn linh ki\u1ec7n ph\u00f9 h\u1ee3p v\u00e0 t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf m\u1ea1ch l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>Vi\u1ec7c ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i hi\u1ec7u qu\u1ea3 l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m c\u00f4ng su\u1ea5t cao. Vi\u1ec7c l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a \u1ee9ng d\u1ee5ng v\u00e0 ngu\u1ed3n l\u1ef1c s\u1eb5n c\u00f3.  Hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i s\u1ebd gi\u00fap ng\u01b0\u1eddi s\u1eed d\u1ee5ng v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng si\u00eau \u00e2m m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1 l\u00e1i l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m c\u00f4ng su\u1ea5t cao. T\u1ea7n s\u1ed1 l\u00e1i kh\u00f4ng ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn gi\u1ea3m hi\u1ec7u su\u1ea5t, qu\u00e1 nhi\u1ec7t, th\u1eadm ch\u00ed h\u01b0 h\u1ecfng \u0111\u1ea7u d\u00f2. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd tr\u00ecnh b\u00e0y chi<\/p>\n","protected":false},"author":1,"featured_media":19409,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-49772","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\/49772","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=49772"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/49772\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/19409"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=49772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=49772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=49772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}