{"id":44468,"date":"2023-04-25T14:51:05","date_gmt":"2023-04-25T19:51:05","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-piezo-element\/"},"modified":"2025-01-21T07:28:53","modified_gmt":"2025-01-21T12:28:53","slug":"what-is-piezo-element","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/what-is-piezo-element\/","title":{"rendered":"Hi\u1ec3u V\u1ec1 Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng C\u1ee7a V\u1eadt Li\u1ec7u \u00c1p \u0110i\u1ec7n"},"content":{"rendered":"<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd \u0111\u1eb7c bi\u1ec7t x\u1ea3y ra \u1edf m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u nh\u1ea5t \u0111\u1ecbnh, cho ph\u00e9p ch\u00fang chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.  V\u1eadt li\u1ec7u th\u1ec3 hi\u1ec7n t\u00ednh ch\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, v\u00e0 &quot;piezo element&quot; \u2013 ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n \u2013 ch\u00ednh l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u n\u00e0y \u0111\u1ec3 khai th\u00e1c hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. Ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau, t\u1eeb nh\u1eefng mi\u1ebfng g\u1ed1m m\u1ecfng \u0111\u1ebfn nh\u1eefng kh\u1ed1i tinh th\u1ec3 ph\u1ee9c t\u1ea1p, t\u00f9y thu\u1ed9c v\u00e0o m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n<\/h3>\n<p>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n d\u1ef1a tr\u00ean c\u1ea5u tr\u00fac tinh th\u1ec3 c\u1ee7a v\u1eadt li\u1ec7u. Khi ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c c\u01a1 h\u1ecdc, nh\u01b0 \u00e1p su\u1ea5t, l\u1ef1c k\u00e9o ho\u1eb7c l\u1ef1c n\u00e9n, c\u1ea5u tr\u00fac tinh th\u1ec3 n\u00e0y b\u1ecb bi\u1ebfn d\u1ea1ng, d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e2n b\u1ed1 l\u1ea1i \u0111i\u1ec7n t\u00edch b\u00ean trong v\u1eadt li\u1ec7u. S\u1ef1 ph\u00e2n b\u1ed1 l\u1ea1i n\u00e0y t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n. Ng\u01b0\u1ee3c l\u1ea1i, khi \u0111\u1eb7t m\u1ed9t \u0111i\u1ec7n \u00e1p v\u00e0o ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n, c\u1ea5u tr\u00fac tinh th\u1ec3 s\u1ebd thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng, t\u1ea1o ra s\u1ef1 gi\u00e3n n\u1edf ho\u1eb7c co l\u1ea1i v\u1ec1 m\u1eb7t k\u00edch th\u01b0\u1edbc.<\/p>\n<h3>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/h3>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u th\u1ec3 hi\u1ec7n t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n, bao g\u1ed3m c\u1ea3 v\u1eadt li\u1ec7u t\u1ef1 nhi\u00ean v\u00e0 v\u1eadt li\u1ec7u nh\u00e2n t\u1ea1o. M\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i v\u1eadt li\u1ec7u<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>G\u1ed1m \u00e1p \u0111i\u1ec7n (v\u00ed d\u1ee5: PZT)<\/td>\n<td>Gi\u00e1 th\u00e0nh th\u1ea5p, hi\u1ec7u su\u1ea5t cao, d\u1ec5 ch\u1ebf t\u1ea1o<\/td>\n<td>\u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc k\u00e9m h\u01a1n th\u1ea1ch anh<\/td>\n<\/tr>\n<tr>\n<td>Th\u1ea1ch anh (SiO2)<\/td>\n<td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh cao, \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc t\u1ed1t<\/td>\n<td>Hi\u1ec7u su\u1ea5t \u00e1p \u0111i\u1ec7n th\u1ea5p h\u01a1n g\u1ed1m<\/td>\n<\/tr>\n<tr>\n<td>Polyvinylidene fluoride (PVDF)<\/td>\n<td>Linh ho\u1ea1t, d\u1ebbo dai<\/td>\n<td>Hi\u1ec7u su\u1ea5t \u00e1p \u0111i\u1ec7n th\u1ea5p h\u01a1n g\u1ed1m v\u00e0 th\u1ea1ch anh<\/td>\n<\/tr>\n<tr>\n<td>G\u1ed1m composite<\/td>\n<td>K\u1ebft h\u1ee3p \u01b0u \u0111i\u1ec3m c\u1ee7a g\u1ed1m v\u00e0 polymer<\/td>\n<td>Kh\u00f3 ch\u1ebf t\u1ea1o h\u01a1n g\u1ed1m \u0111\u01a1n pha<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n<\/h3>\n<p>Ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, t\u1eeb c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed d\u00e2n d\u1ee5ng \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 y t\u1ebf. M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ti\u00eau bi\u1ec3u bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>B\u1ed9 c\u1ea3m bi\u1ebfn:<\/strong> Ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u00e1p su\u1ea5t, l\u1ef1c, gia t\u1ed1c v\u00e0 c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd kh\u00e1c.<\/li>\n<li><strong>B\u1ed9 truy\u1ec1n \u0111\u1ed9ng:<\/strong> Kh\u1ea3 n\u0103ng bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n n\u0103ng th\u00e0nh n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc cho ph\u00e9p ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng si\u00eau \u00e2m, h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c, v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng vi c\u01a1 \u0111i\u1ec7n.<\/li>\n<li><strong>M\u00e1y ph\u00e1t \u0111i\u1ec7n:<\/strong> Ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n n\u0103ng t\u1eeb c\u00e1c rung \u0111\u1ed9ng c\u01a1 h\u1ecdc, v\u00ed d\u1ee5 nh\u01b0 trong vi\u1ec7c thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb b\u01b0\u1edbc ch\u00e2n ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a xe c\u1ed9.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb \u0111\u00e1nh l\u1eeda:<\/strong>  Trong c\u00e1c b\u1eadt l\u1eeda gas, l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n t\u1ea1o ra \u0111i\u1ec7n \u00e1p cao, t\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n \u0111\u1ec3 \u0111\u1ed1t ch\u00e1y gas.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb si\u00eau \u00e2m:<\/strong>  Trong l\u0129nh v\u1ef1c y t\u1ebf v\u00e0 c\u00f4ng nghi\u1ec7p, ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra s\u00f3ng si\u00eau \u00e2m cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea9n \u0111o\u00e1n h\u00ecnh \u1ea3nh,  l\u00e0m s\u1ea1ch, h\u00e0n, v\u00e0 gia c\u00f4ng v\u1eadt li\u1ec7u.  M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng si\u00eau \u00e2m c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nh\u01b0 Beijing Ultrasonic n\u1ebfu y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt \u0111\u1eb7c bi\u1ec7t.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 nh\u1edd kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i gi\u1eefa n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc v\u00e0 n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n.  S\u1ef1 \u0111a d\u1ea1ng v\u1ec1 v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft k\u1ebf cho ph\u00e9p ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhi\u1ec1u y\u00eau c\u1ea7u kh\u00e1c nhau, t\u1eeb c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p, \u0111\u00f3ng g\u00f3p \u0111\u00e1ng k\u1ec3 v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc v\u00e0 c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd \u0111\u1eb7c bi\u1ec7t x\u1ea3y ra \u1edf m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u nh\u1ea5t \u0111\u1ecbnh, cho ph\u00e9p ch\u00fang chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. V\u1eadt li\u1ec7u th\u1ec3 hi\u1ec7n t\u00ednh ch\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, v\u00e0 &quot;piezo element&quot; \u2013<\/p>\n","protected":false},"author":1,"featured_media":23773,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-44468","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\/44468","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=44468"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/44468\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/23773"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=44468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=44468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=44468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}