{"id":52052,"date":"2023-04-21T13:12:01","date_gmt":"2023-04-21T18:12:01","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/diy-piezo-transducer\/"},"modified":"2025-01-21T07:08:54","modified_gmt":"2025-01-21T12:08:54","slug":"diy-piezo-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/diy-piezo-transducer\/","title":{"rendered":"T\u1ef1 ch\u1ebf c\u1ea3m bi\u1ebfn \u00e1p \u0111i\u1ec7n: H\u01b0\u1edbng d\u1eabn chi ti\u1ebft"},"content":{"rendered":"<p>Piezo l\u00e0 g\u00ec? Ch\u1eafc h\u1eb3n nhi\u1ec1u ng\u01b0\u1eddi \u0111\u00e3 t\u1eebng nghe \u0111\u1ebfn lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t n\u00e0y, nh\u01b0ng ch\u01b0a hi\u1ec3u r\u00f5 v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng c\u1ee7a n\u00f3. Piezo, vi\u1ebft t\u1eaft c\u1ee7a piezoelectric, l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng sinh ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n n\u0103ng th\u00e0nh n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc d\u01b0\u1edbi d\u1ea1ng rung \u0111\u1ed9ng.  B\u00e0i vi\u1ebft n\u00e0y s\u1ebd t\u1eadp trung v\u00e0o vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o c\u1ea3m bi\u1ebfn piezo, kh\u00e1m ph\u00e1 t\u00ednh ch\u1ea5t th\u00fa v\u1ecb c\u1ee7a n\u00f3 v\u00e0 h\u01b0\u1edbng d\u1eabn c\u00e1ch \u00e1p d\u1ee5ng v\u00e0o c\u00e1c d\u1ef1 \u00e1n DIY.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn Piezo<\/h3>\n<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn piezo. Khi m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean v\u1eadt li\u1ec7u piezo, n\u00f3 l\u00e0m thay \u0111\u1ed5i c\u1ea5u tr\u00fac tinh th\u1ec3 b\u00ean trong, t\u1ea1o ra s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng \u0111i\u1ec7n t\u00edch v\u00e0 sinh ra \u0111i\u1ec7n \u00e1p. \u0110i\u1ec7n \u00e1p n\u00e0y t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi l\u1ef1c t\u00e1c \u0111\u1ed9ng, cho ph\u00e9p c\u1ea3m bi\u1ebfn piezo \u0111o l\u01b0\u1eddng \u00e1p su\u1ea5t, rung \u0111\u1ed9ng, v\u00e0 c\u00e1c d\u1ea1ng bi\u1ebfn d\u1ea1ng c\u01a1 h\u1ecdc kh\u00e1c. Ng\u01b0\u1ee3c l\u1ea1i, khi \u00e1p d\u1ee5ng m\u1ed9t \u0111i\u1ec7n \u00e1p v\u00e0o v\u1eadt li\u1ec7u piezo, n\u00f3 s\u1ebd thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng, t\u1ea1o ra rung \u0111\u1ed9ng.<\/p>\n<h3>V\u1eadt li\u1ec7u v\u00e0 d\u1ee5ng c\u1ee5 c\u1ea7n thi\u1ebft<\/h3>\n<p>\u0110\u1ec3 t\u1ef1 ch\u1ebf t\u1ea1o m\u1ed9t c\u1ea3m bi\u1ebfn piezo \u0111\u01a1n gi\u1ea3n, b\u1ea1n s\u1ebd c\u1ea7n chu\u1ea9n b\u1ecb nh\u1eefng v\u1eadt li\u1ec7u v\u00e0 d\u1ee5ng c\u1ee5 sau:<\/p>\n<ul>\n<li>Mi\u1ebfng g\u1ed1m piezo (c\u00f3 th\u1ec3 l\u1ea5y t\u1eeb buzzer c\u0169, loa \u00e1p \u0111i\u1ec7n,&#8230;)<\/li>\n<li>D\u00e2y \u0111i\u1ec7n<\/li>\n<li>M\u1ecf h\u00e0n<\/li>\n<li>K\u00ecm c\u1eaft<\/li>\n<li>B\u0103ng keo c\u00e1ch \u0111i\u1ec7n<\/li>\n<li>V\u1eadt li\u1ec7u n\u1ec1n (v\u00ed d\u1ee5: mi\u1ebfng g\u1ed7 nh\u1ecf)<\/li>\n<\/ul>\n<h3>C\u00e1c b\u01b0\u1edbc ch\u1ebf t\u1ea1o c\u1ea3m bi\u1ebfn Piezo<\/h3>\n<ol>\n<li><strong>Chu\u1ea9n b\u1ecb mi\u1ebfng g\u1ed1m piezo:<\/strong>  N\u1ebfu s\u1eed d\u1ee5ng buzzer c\u0169, b\u1ea1n c\u1ea7n th\u00e1o r\u1eddi \u0111\u1ec3 l\u1ea5y mi\u1ebfng g\u1ed1m piezo b\u00ean trong.<\/li>\n<li><strong>H\u00e0n d\u00e2y \u0111i\u1ec7n:<\/strong> H\u00e0n hai d\u00e2y \u0111i\u1ec7n v\u00e0o hai m\u1eb7t kim lo\u1ea1i c\u1ee7a mi\u1ebfng g\u1ed1m piezo. \u0110\u1ea3m b\u1ea3o m\u1ed1i h\u00e0n ch\u1eafc ch\u1eafn v\u00e0 \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n c\u1ea9n th\u1eadn.<\/li>\n<li><strong>G\u1eafn l\u00ean v\u1eadt li\u1ec7u n\u1ec1n:<\/strong> D\u00f9ng b\u0103ng keo c\u00e1ch \u0111i\u1ec7n \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh mi\u1ebfng g\u1ed1m piezo l\u00ean v\u1eadt li\u1ec7u n\u1ec1n.<\/li>\n<\/ol>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn Piezo t\u1ef1 ch\u1ebf<\/h3>\n<p>C\u1ea3m bi\u1ebfn piezo t\u1ef1 ch\u1ebf c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u00fa v\u1ecb, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li><strong>C\u1ea3m bi\u1ebfn rung \u0111\u1ed9ng:<\/strong>  Ph\u00e1t hi\u1ec7n rung \u0111\u1ed9ng tr\u00ean b\u1ec1 m\u1eb7t, c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m b\u00e1o \u0111\u1ed9ng ch\u1ed1ng tr\u1ed9m \u0111\u01a1n gi\u1ea3n.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn g\u00f5:<\/strong>  Bi\u1ebfn \u0111\u1ed5i l\u1ef1c g\u00f5 th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n, c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng trong c\u00e1c d\u1ef1 \u00e1n nh\u1ea1c c\u1ee5 \u0111i\u1ec7n t\u1eed t\u1ef1 ch\u1ebf.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t:<\/strong>  \u0110o l\u01b0\u1eddng \u00e1p l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean b\u1ec1 m\u1eb7t.<\/li>\n<\/ul>\n<h3>M\u1ed9t s\u1ed1 l\u01b0u \u00fd khi l\u00e0m vi\u1ec7c v\u1edbi Piezo<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>V\u1ea5n \u0111\u1ec1<\/th>\n<th>L\u01b0u \u00fd<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u1ed9 nh\u1ea1y<\/td>\n<td>Piezo r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi rung \u0111\u1ed9ng v\u00e0 nhi\u1ec5u.<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 b\u1ec1n<\/td>\n<td>Tr\u00e1nh t\u00e1c \u0111\u1ed9ng l\u1ef1c qu\u00e1 m\u1ea1nh l\u00ean piezo.<\/td>\n<\/tr>\n<tr>\n<td>K\u1ebft n\u1ed1i<\/td>\n<td>\u0110\u1ea3m b\u1ea3o m\u1ed1i h\u00e0n ch\u1eafc ch\u1eafn v\u00e0 c\u00e1ch \u0111i\u1ec7n t\u1ed1t.<\/td>\n<\/tr>\n<tr>\n<td>T\u00ednh ph\u00e2n c\u1ef1c<\/td>\n<td>M\u1ed9t s\u1ed1 lo\u1ea1i piezo c\u00f3 ph\u00e2n c\u1ef1c, c\u1ea7n ch\u00fa \u00fd khi k\u1ebft n\u1ed1i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Qua b\u00e0i vi\u1ebft n\u00e0y, hy v\u1ecdng b\u1ea1n \u0111\u00e3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1ch t\u1ef1 ch\u1ebf t\u1ea1o c\u1ea3m bi\u1ebfn piezo. V\u1edbi nh\u1eefng v\u1eadt li\u1ec7u \u0111\u01a1n gi\u1ea3n v\u00e0 m\u1ed9t ch\u00fat kh\u00e9o l\u00e9o, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng \u1ee9ng d\u1ee5ng th\u00fa v\u1ecb t\u1eeb lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t n\u00e0y.  Vi\u1ec7c kh\u00e1m ph\u00e1 v\u00e0 tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 piezo v\u00e0 \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng c\u1ee7a n\u00f3 trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Piezo l\u00e0 g\u00ec? Ch\u1eafc h\u1eb3n nhi\u1ec1u ng\u01b0\u1eddi \u0111\u00e3 t\u1eebng nghe \u0111\u1ebfn lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t n\u00e0y, nh\u01b0ng ch\u01b0a hi\u1ec3u r\u00f5 v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng c\u1ee7a n\u00f3. Piezo, vi\u1ebft t\u1eaft c\u1ee7a piezoelectric, l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng sinh ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1<\/p>\n","protected":false},"author":1,"featured_media":19413,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-52052","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\/52052","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=52052"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/52052\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/19413"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=52052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=52052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=52052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}