{"id":50372,"date":"2023-04-21T14:57:00","date_gmt":"2023-04-21T19:57:00","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-many-volts-does-a-piezo-produce\/"},"modified":"2025-01-21T07:13:23","modified_gmt":"2025-01-21T12:13:23","slug":"how-many-volts-does-a-piezo-produce","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-many-volts-does-a-piezo-produce\/","title":{"rendered":"\u0110i\u1ec7n \u00e1p t\u1ea1o ra t\u1eeb Piezo l\u00e0 bao nhi\u00eau Volt?"},"content":{"rendered":"<p>Piezo, vi\u1ebft t\u1eaft c\u1ee7a piezoelectric, l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc.  V\u1eady c\u00e2u h\u1ecfi \u0111\u1eb7t ra l\u00e0: m\u1ed9t piezo c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p bao nhi\u00eau v\u00f4n? C\u00e2u tr\u1ea3 l\u1eddi kh\u00f4ng h\u1ec1 \u0111\u01a1n gi\u1ea3n nh\u01b0 m\u1ed9t con s\u1ed1 c\u1ee5 th\u1ec3, m\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o ph\u00e2n t\u00edch c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra c\u1ee7a piezo v\u00e0 cung c\u1ea5p m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 ph\u1ea1m vi \u0111i\u1ec7n \u00e1p m\u00e0 ch\u00fang ta c\u00f3 th\u1ec3 k\u1ef3 v\u1ecdng.<\/p>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra c\u1ee7a Piezo<\/h3>\n<p>\u0110i\u1ec7n \u00e1p m\u00e0 m\u1ed9t piezo t\u1ea1o ra ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>L\u1ef1c t\u00e1c \u0111\u1ed9ng:<\/strong> L\u1ef1c t\u00e1c \u0111\u1ed9ng c\u00e0ng l\u1edbn, \u0111i\u1ec7n \u00e1p t\u1ea1o ra c\u00e0ng cao.  M\u1ed9t l\u1ef1c nh\u1eb9 s\u1ebd ch\u1ec9 t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p nh\u1ecf, trong khi m\u1ed9t l\u1ef1c m\u1ea1nh c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p l\u00ean \u0111\u1ebfn h\u00e0ng tr\u0103m v\u00f4n.<\/li>\n<li><strong>Lo\u1ea1i v\u1eadt li\u1ec7u piezo:<\/strong> C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u piezo kh\u00e1c nhau c\u00f3 \u0111\u1ed9 nh\u1ea1y kh\u00e1c nhau. V\u00ed d\u1ee5, g\u1ed1m PZT (ch\u00ec zirconate titanate) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng do c\u00f3 \u0111\u1ed9 nh\u1ea1y cao h\u01a1n so v\u1edbi c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a piezo:<\/strong> K\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a piezo c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra.  Piezo l\u1edbn h\u01a1n th\u01b0\u1eddng t\u1ea1o ra \u0111i\u1ec7n \u00e1p cao h\u01a1n. H\u00ecnh d\u1ea1ng c\u1ee7a piezo c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch ph\u00e2n b\u1ed1 \u00e1p l\u1ef1c v\u00e0 do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec7n \u00e1p.<\/li>\n<li><strong>T\u1ea7n s\u1ed1 dao \u0111\u1ed9ng:<\/strong>  Trong tr\u01b0\u1eddng h\u1ee3p \u1ee9ng d\u1ee5ng si\u00eau \u00e2m, t\u1ea7n s\u1ed1 dao \u0111\u1ed9ng c\u0169ng l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng. T\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a piezo s\u1ebd t\u1ea1o ra \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra t\u1ed1i \u0111a.<\/li>\n<\/ul>\n<h3>Ph\u1ea1m vi \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra c\u1ee7a Piezo<\/h3>\n<p>\u0110i\u1ec7n \u00e1p \u0111\u1ea7u ra c\u1ee7a piezo c\u00f3 th\u1ec3 dao \u0111\u1ed9ng t\u1eeb v\u00e0i miliv\u00f4n \u0111\u1ebfn h\u00e0ng tr\u0103m v\u00f4n.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i Piezo<\/th>\n<th>L\u1ef1c t\u00e1c \u0111\u1ed9ng<\/th>\n<th>\u0110i\u1ec7n \u00e1p \u0111\u1ea7u ra (\u01b0\u1edbc t\u00ednh)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Piezo g\u1ed1m nh\u1ecf<\/td>\n<td>Nh\u1eb9 (v\u00ed d\u1ee5: nh\u1ea5n b\u1eb1ng tay)<\/td>\n<td>V\u00e0i miliv\u00f4n \u0111\u1ebfn v\u00e0i v\u00f4n<\/td>\n<\/tr>\n<tr>\n<td>Piezo g\u1ed1m l\u1edbn<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>V\u00e0i v\u00f4n \u0111\u1ebfn v\u00e0i ch\u1ee5c v\u00f4n<\/td>\n<\/tr>\n<tr>\n<td>Piezo g\u1ed1m l\u1edbn<\/td>\n<td>M\u1ea1nh (v\u00ed d\u1ee5: va \u0111\u1eadp)<\/td>\n<td>H\u00e0ng ch\u1ee5c v\u00f4n \u0111\u1ebfn h\u00e0ng tr\u0103m v\u00f4n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a Piezo trong vi\u1ec7c t\u1ea1o ra \u0111i\u1ec7n \u00e1p<\/h3>\n<p>Piezo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>B\u1eadt l\u1eeda:<\/strong>  \u00c1p l\u1ef1c t\u1eeb n\u00fat b\u1ea5m t\u1ea1o ra \u0111i\u1ec7n \u00e1p \u0111\u1ee7 cao \u0111\u1ec3 t\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t:<\/strong>  Piezo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u00e1p su\u1ea5t trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau, t\u1eeb l\u1ed1p xe \u0111\u1ebfn c\u1ea3m bi\u1ebfn y t\u1ebf.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb si\u00eau \u00e2m:<\/strong>  M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb si\u00eau \u00e2m s\u1eed d\u1ee5ng piezo \u0111\u1ec3 t\u1ea1o ra s\u00f3ng si\u00eau \u00e2m.  N\u1ebfu c\u1ea7n nh\u1eafc \u0111\u1ebfn m\u1ed9t h\u00e3ng s\u1ea3n xu\u1ea5t trong b\u1ed1i c\u1ea3nh si\u00eau \u00e2m, c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc Beijing Ultrasonic.<\/li>\n<li><strong>Thu n\u0103ng l\u01b0\u1ee3ng:<\/strong>  Piezo c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb rung \u0111\u1ed9ng c\u01a1 h\u1ecdc v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111i\u1ec7n n\u0103ng.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, \u0111i\u1ec7n \u00e1p m\u00e0 m\u1ed9t piezo t\u1ea1o ra ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 v\u00e0 c\u00f3 th\u1ec3 dao \u0111\u1ed9ng trong m\u1ed9t ph\u1ea1m vi r\u1ed9ng.  Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y s\u1ebd gi\u00fap ch\u00fang ta l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng piezo hi\u1ec7u qu\u1ea3 trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.  T\u1eeb vi\u1ec7c t\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n trong b\u1eadt l\u1eeda \u0111\u1ebfn vi\u1ec7c thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb rung \u0111\u1ed9ng, piezo \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Piezo, vi\u1ebft t\u1eaft c\u1ee7a piezoelectric, l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc. V\u1eady c\u00e2u h\u1ecfi \u0111\u1eb7t ra l\u00e0: m\u1ed9t piezo c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p bao nhi\u00eau v\u00f4n? C\u00e2u tr\u1ea3 l\u1eddi kh\u00f4ng h\u1ec1 \u0111\u01a1n gi\u1ea3n nh\u01b0 m\u1ed9t con s\u1ed1 c\u1ee5 th\u1ec3,<\/p>\n","protected":false},"author":1,"featured_media":23776,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-50372","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\/50372","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=50372"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/50372\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/23776"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=50372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=50372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=50372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}