{"id":47628,"date":"2023-04-22T00:07:15","date_gmt":"2023-04-22T05:07:15","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-ultrasonic-generator\/"},"modified":"2025-01-21T07:20:26","modified_gmt":"2025-01-21T12:20:26","slug":"how-to-make-ultrasonic-generator","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-ultrasonic-generator\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u1ebf t\u1ea1o m\u00e1y ph\u00e1t si\u00eau \u00e2m"},"content":{"rendered":"<p>Vi\u1ec7c t\u1ea1o ra m\u1ed9t m\u00e1y ph\u00e1t si\u00eau \u00e2m, d\u00f9 l\u00e0 cho m\u1ee5c \u0111\u00edch c\u00f4ng nghi\u1ec7p hay h\u1ecdc t\u1eadp, \u0111\u00f2i h\u1ecfi s\u1ef1 hi\u1ec3u bi\u1ebft v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u0169ng nh\u01b0 l\u1ef1a ch\u1ecdn linh ki\u1ec7n ph\u00f9 h\u1ee3p. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t si\u00eau \u00e2m \u0111\u01a1n gi\u1ea3n, t\u1eadp trung v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n v\u00e0 quy tr\u00ecnh l\u1eafp r\u00e1p.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ph\u00e1t si\u00eau \u00e2m<\/h3>\n<p>M\u00e1y ph\u00e1t si\u00eau \u00e2m ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, bi\u1ebfn \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 c\u00f3 t\u1ea7n s\u1ed1 cao h\u01a1n ng\u01b0\u1ee1ng nghe c\u1ee7a con ng\u01b0\u1eddi (th\u01b0\u1eddng tr\u00ean 20kHz).  M\u1ed9t t\u00edn hi\u1ec7u \u0111i\u1ec7n xoay chi\u1ec1u \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n (th\u01b0\u1eddng l\u00e0 tinh th\u1ec3 th\u1ea1ch anh ho\u1eb7c g\u1ed1m \u00e1p \u0111i\u1ec7n), khi\u1ebfn v\u1eadt li\u1ec7u n\u00e0y dao \u0111\u1ed9ng v\u00e0 t\u1ea1o ra s\u00f3ng si\u00eau \u00e2m.<\/p>\n<h3>Ch\u1ecdn linh ki\u1ec7n cho m\u00e1y ph\u00e1t si\u00eau \u00e2m<\/h3>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn linh ki\u1ec7n ph\u00f9 h\u1ee3p \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 t\u1ea7n s\u1ed1 c\u1ee7a m\u00e1y ph\u00e1t. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y li\u1ec7t k\u00ea c\u00e1c linh ki\u1ec7n c\u1ea7n thi\u1ebft v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ea7n l\u01b0u \u00fd:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Linh ki\u1ec7n<\/th>\n<th>Ch\u1ee9c n\u0103ng<\/th>\n<th>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/td>\n<td>T\u1ea1o ra s\u00f3ng si\u00eau \u00e2m<\/td>\n<td>T\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng, k\u00edch th\u01b0\u1edbc, c\u00f4ng su\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 dao \u0111\u1ed9ng<\/td>\n<td>T\u1ea1o t\u00edn hi\u1ec7u \u0111i\u1ec7n xoay chi\u1ec1u<\/td>\n<td>T\u1ea7n s\u1ed1, bi\u00ean \u0111\u1ed9<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 khu\u1ebfch \u0111\u1ea1i<\/td>\n<td>Khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u \u0111i\u1ec7n<\/td>\n<td>C\u00f4ng su\u1ea5t, d\u1ea3i t\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td>Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td>Cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng<\/td>\n<td>\u0110i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>L\u1eafp r\u00e1p m\u00e1y ph\u00e1t si\u00eau \u00e2m<\/h3>\n<p>Sau khi \u0111\u00e3 chu\u1ea9n b\u1ecb \u0111\u1ea7y \u0111\u1ee7 linh ki\u1ec7n, ta ti\u1ebfn h\u00e0nh l\u1eafp r\u00e1p theo c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<ol>\n<li>K\u1ebft n\u1ed1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i.  \u0110\u1ea3m b\u1ea3o c\u00e1c c\u1ef1c \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u00fang \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ecfng linh ki\u1ec7n.<\/li>\n<li>K\u1ebft n\u1ed1i b\u1ed9 dao \u0111\u1ed9ng v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i.  \u0110i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 c\u1ee7a b\u1ed9 dao \u0111\u1ed9ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ea7n s\u1ed1 si\u00eau \u00e2m mong mu\u1ed1n.<\/li>\n<li>K\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n v\u1edbi b\u1ed9 dao \u0111\u1ed9ng v\u00e0 b\u1ed9 khu\u1ebfch \u0111\u1ea1i.  Ki\u1ec3m tra l\u1ea1i c\u00e1c k\u1ebft n\u1ed1i tr\u01b0\u1edbc khi b\u1eadt ngu\u1ed3n.<\/li>\n<li>B\u1eadt ngu\u1ed3n v\u00e0 ki\u1ec3m tra ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ph\u00e1t.  C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t microphone si\u00eau \u00e2m ho\u1eb7c thi\u1ebft b\u1ecb \u0111o chuy\u00ean d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra t\u1ea7n s\u1ed1 v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 s\u00f3ng si\u00eau \u00e2m.<\/li>\n<\/ol>\n<h3>\u0110i\u1ec1u ch\u1ec9nh v\u00e0 ki\u1ec3m tra<\/h3>\n<p>Sau khi l\u1eafp r\u00e1p, c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 v\u00e0 bi\u00ean \u0111\u1ed9 c\u1ee7a b\u1ed9 dao \u0111\u1ed9ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.  Ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng c\u00e1c k\u1ebft n\u1ed1i v\u00e0 \u0111\u1ea3m b\u1ea3o v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng. N\u1ebfu c\u1ea7n thi\u1ebft, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ed9 t\u1ea3n nhi\u1ec7t cho b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u0111\u1ec3 tr\u00e1nh qu\u00e1 nhi\u1ec7t.<\/p>\n<p>Vi\u1ec7c ch\u1ebf t\u1ea1o m\u00e1y ph\u00e1t si\u00eau \u00e2m \u0111\u00f2i h\u1ecfi s\u1ef1 t\u1ec9 m\u1ec9 v\u00e0 ki\u1ebfn th\u1ee9c v\u1ec1 \u0111i\u1ec7n t\u1eed.  Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p nh\u1eefng th\u00f4ng tin h\u1eefu \u00edch \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 tay x\u00e2y d\u1ef1ng m\u1ed9t m\u00e1y ph\u00e1t si\u00eau \u00e2m \u0111\u01a1n gi\u1ea3n.  Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 c\u00f4ng su\u1ea5t l\u1edbn, n\u00ean tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a chuy\u00ean gia ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m th\u01b0\u01a1ng m\u1ea1i c\u00f3 s\u1eb5n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c t\u1ea1o ra m\u1ed9t m\u00e1y ph\u00e1t si\u00eau \u00e2m, d\u00f9 l\u00e0 cho m\u1ee5c \u0111\u00edch c\u00f4ng nghi\u1ec7p hay h\u1ecdc t\u1eadp, \u0111\u00f2i h\u1ecfi s\u1ef1 hi\u1ec3u bi\u1ebft v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u0169ng nh\u01b0 l\u1ef1a ch\u1ecdn linh ki\u1ec7n ph\u00f9 h\u1ee3p. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t si\u00eau \u00e2m \u0111\u01a1n gi\u1ea3n, t\u1eadp<\/p>\n","protected":false},"author":1,"featured_media":19238,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-47628","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\/47628","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=47628"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47628\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/19238"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=47628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=47628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=47628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}