{"id":44484,"date":"2023-04-25T14:50:02","date_gmt":"2023-04-25T19:50:02","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-piezoelectric-generator\/"},"modified":"2025-01-21T07:28:55","modified_gmt":"2025-01-21T12:28:55","slug":"what-is-piezoelectric-generator","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/what-is-piezoelectric-generator\/","title":{"rendered":"Hi\u1ec3u V\u1ec1 M\u00e1y Ph\u00e1t \u0110i\u1ec7n \u00c1p \u0110i\u1ec7n"},"content":{"rendered":"<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd \u0111\u1eb7c bi\u1ec7t, \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng m\u1edbi v\u00e0 b\u1ec1n v\u1eefng.  B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u v\u1ec1 m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n, m\u1ed9t thi\u1ebft b\u1ecb \u1ee9ng d\u1ee5ng hi\u1ec7u \u1ee9ng n\u00e0y \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n. Ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u1ea5u t\u1ea1o, \u1ee9ng d\u1ee5ng v\u00e0 ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 \u0111\u1ea7y h\u1ee9a h\u1eb9n n\u00e0y.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/h3>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ee7a hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n.  Hi\u1ec7u \u1ee9ng n\u00e0y \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1edfi Pierre v\u00e0 Jacques Curie v\u00e0o n\u0103m 1880.  C\u1ee5 th\u1ec3, m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u nh\u1ea5t \u0111\u1ecbnh, g\u1ecdi l\u00e0 v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, s\u1ebd t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c c\u01a1 h\u1ecdc (\u00e1p su\u1ea5t, rung \u0111\u1ed9ng, u\u1ed1n cong&#8230;). Ng\u01b0\u1ee3c l\u1ea1i, khi \u0111\u1eb7t \u0111i\u1ec7n \u00e1p v\u00e0o v\u1eadt li\u1ec7u n\u00e0y, ch\u00fang s\u1ebd thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng. M\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n t\u1eadn d\u1ee5ng kh\u1ea3 n\u0103ng t\u1ea1o \u0111i\u1ec7n \u00e1p khi c\u00f3 t\u00e1c \u0111\u1ed9ng l\u1ef1c \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n.<\/p>\n<h3>C\u1ea5u t\u1ea1o c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n<\/h3>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n th\u01b0\u1eddng bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh sau:<\/p>\n<ul>\n<li><strong>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n:<\/strong> \u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb g\u1ed1m \u00e1p \u0111i\u1ec7n (nh\u01b0 PZT), polymer \u00e1p \u0111i\u1ec7n (nh\u01b0 PVDF) ho\u1eb7c v\u1eadt li\u1ec7u composite.<\/li>\n<li><strong>\u0110i\u1ec7n c\u1ef1c:<\/strong>  \u0110i\u1ec7n c\u1ef1c \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u1ec3 thu th\u1eadp \u0111i\u1ec7n t\u00edch \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/li>\n<li><strong>M\u1ea1ch \u0111i\u1ec7n:<\/strong> M\u1ea1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/li>\n<li><strong>V\u1ecf b\u1ea3o v\u1ec7:<\/strong> V\u1ecf b\u1ea3o v\u1ec7 gi\u00fap b\u1ea3o v\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong kh\u1ecfi t\u00e1c \u0111\u1ed9ng c\u1ee7a m\u00f4i tr\u01b0\u1eddng.<\/li>\n<\/ul>\n<h3>C\u00e1c lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n<\/h3>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n kh\u00e1c nhau, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean c\u1ea5u tr\u00fac v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i m\u00e1y ph\u00e1t<\/th>\n<th>Nguy\u00ean l\u00fd<\/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>\u00c1p \u0111i\u1ec7n d\u1ea1ng n\u00e9n<\/td>\n<td>Ch\u1ecbu l\u1ef1c n\u00e9n tr\u1ef1c ti\u1ebfp<\/td>\n<td>C\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n<\/td>\n<td>Hi\u1ec7u su\u1ea5t th\u1ea5p \u1edf t\u1ea7n s\u1ed1 cao<\/td>\n<\/tr>\n<tr>\n<td>\u00c1p \u0111i\u1ec7n d\u1ea1ng u\u1ed1n<\/td>\n<td>Ch\u1ecbu l\u1ef1c u\u1ed1n<\/td>\n<td>Hi\u1ec7u su\u1ea5t cao \u1edf t\u1ea7n s\u1ed1 th\u1ea5p<\/td>\n<td>D\u1ec5 b\u1ecb h\u01b0 h\u1ecfng<\/td>\n<\/tr>\n<tr>\n<td>\u00c1p \u0111i\u1ec7n d\u1ea1ng c\u1eaft<\/td>\n<td>Ch\u1ecbu l\u1ef1c c\u1eaft<\/td>\n<td>\u0110\u1ed9 nh\u1ea1y cao<\/td>\n<td>Kh\u00f3 ch\u1ebf t\u1ea1o<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n<\/h3>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n \u0111ang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb m\u00f4i tr\u01b0\u1eddng:<\/strong>  Chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng t\u1eeb rung \u0111\u1ed9ng, \u00e1p l\u1ef1c, chuy\u1ec3n \u0111\u1ed9ng (gi\u00f3, s\u00f3ng bi\u1ec3n, b\u01b0\u1edbc ch\u00e2n&#8230;) th\u00e0nh \u0111i\u1ec7n n\u0103ng.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn:<\/strong>  \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t, gia t\u1ed1c, rung \u0111\u1ed9ng&#8230;<\/li>\n<li><strong>Thi\u1ebft b\u1ecb y t\u1ebf:<\/strong>  \u1ee8ng d\u1ee5ng trong m\u00e1y si\u00eau \u00e2m, thi\u1ebft b\u1ecb theo d\u00f5i s\u1ee9c kh\u1ecfe&#8230;<\/li>\n<li><strong>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed:<\/strong>  S\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb \u0111\u00e1nh l\u1eeda, m\u00e1y in&#8230;<\/li>\n<\/ul>\n<h3>Ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n<\/h3>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 ti\u1ec1m n\u0103ng trong vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng xanh v\u00e0 b\u1ec1n v\u1eefng.  Vi\u1ec7c nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n m\u1edbi, hi\u1ec7u su\u1ea5t cao v\u00e0 chi ph\u00ed th\u1ea5p s\u1ebd m\u1edf ra nhi\u1ec1u \u1ee9ng d\u1ee5ng h\u01a1n n\u1eefa cho c\u00f4ng ngh\u1ec7 n\u00e0y trong t\u01b0\u01a1ng lai.<\/p>\n<p>T\u00f3m l\u1ea1i, m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n. V\u1edbi nh\u1eefng \u01b0u \u0111i\u1ec3m v\u1ec1 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 cao v\u00e0 ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i, m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n h\u1ee9a h\u1eb9n s\u1ebd \u0111\u00f3ng g\u00f3p quan tr\u1ecdng v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng c\u1ee7a x\u00e3 h\u1ed9i trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd \u0111\u1eb7c bi\u1ec7t, \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng m\u1edbi v\u00e0 b\u1ec1n v\u1eefng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u v\u1ec1 m\u00e1y ph\u00e1t \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n, m\u1ed9t thi\u1ebft b\u1ecb \u1ee9ng d\u1ee5ng hi\u1ec7u \u1ee9ng n\u00e0y \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng<\/p>\n","protected":false},"author":1,"featured_media":26481,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-44484","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\/44484","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=44484"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/44484\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26481"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=44484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=44484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=44484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}