{"id":55007,"date":"2022-06-22T06:24:50","date_gmt":"2022-06-22T11:24:50","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-do-piezoelectric-crystals-work-in-generating-electricity\/"},"modified":"2025-01-21T07:11:25","modified_gmt":"2025-01-21T12:11:25","slug":"how-do-piezoelectric-crystals-work-in-generating-electricity","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-do-piezoelectric-crystals-work-in-generating-electricity\/","title":{"rendered":"Kh\u00e1m ph\u00e1 nguy\u00ean l\u00fd ph\u00e1t \u0111i\u1ec7n c\u1ee7a tinh th\u1ec3 \u00e1p \u0111i\u1ec7n"},"content":{"rendered":"<p>Tinh th\u1ec3 \u00e1p \u0111i\u1ec7n \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i, t\u1eeb nh\u1eefng thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf g\u1ecdn cho \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p. Kh\u1ea3 n\u0103ng sinh ra \u0111i\u1ec7n n\u0103ng t\u1eeb \u00e1p l\u1ef1c c\u01a1 h\u1ecdc khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng thay th\u1ebf \u0111\u1ea7y ti\u1ec1m n\u0103ng. V\u1eady ch\u00ednh x\u00e1c th\u00ec tinh th\u1ec3 \u00e1p \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang.<\/p>\n<h3>C\u1ea5u tr\u00fac Tinh th\u1ec3 v\u00e0 Hi\u1ec7u \u1ee9ng \u00c1p \u0111i\u1ec7n<\/h3>\n<p>Tinh th\u1ec3 \u00e1p \u0111i\u1ec7n l\u00e0 nh\u1eefng v\u1eadt li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac tinh th\u1ec3 \u0111\u1eb7c bi\u1ec7t. B\u00ecnh th\u01b0\u1eddng, c\u00e1c \u0111i\u1ec7n t\u00edch trong tinh th\u1ec3 ph\u00e2n b\u1ed1 c\u00e2n b\u1eb1ng, d\u1eabn \u0111\u1ebfn kh\u00f4ng c\u00f3 \u0111i\u1ec7n \u00e1p tr\u00ean b\u1ec1 m\u1eb7t. Tuy nhi\u00ean, khi tinh th\u1ec3 b\u1ecb t\u00e1c \u0111\u1ed9ng b\u1edfi m\u1ed9t l\u1ef1c c\u01a1 h\u1ecdc, c\u1ea5u tr\u00fac tinh th\u1ec3 b\u1ecb bi\u1ebfn d\u1ea1ng, l\u00e0m l\u1ec7ch t\u00e2m ph\u00e2n b\u1ed1 \u0111i\u1ec7n t\u00edch. S\u1ef1 l\u1ec7ch t\u00e2m n\u00e0y t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng v\u00e0 do \u0111\u00f3 sinh ra \u0111i\u1ec7n \u00e1p tr\u00ean b\u1ec1 m\u1eb7t tinh th\u1ec3. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp. Ng\u01b0\u1ee3c l\u1ea1i, khi \u0111\u1eb7t m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng l\u00ean tinh th\u1ec3, n\u00f3 s\u1ebd l\u00e0m thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng c\u1ee7a tinh th\u1ec3. \u0110\u00e2y g\u1ecdi l\u00e0 hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n ngh\u1ecbch.<\/p>\n<h3>C\u00e1c Lo\u1ea1i Tinh th\u1ec3 \u00c1p \u0111i\u1ec7n<\/h3>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i tinh th\u1ec3 \u00e1p \u0111i\u1ec7n kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 nh\u1eefng \u0111\u1eb7c t\u00ednh v\u00e0 \u1ee9ng d\u1ee5ng ri\u00eang. M\u1ed9t s\u1ed1 lo\u1ea1i ph\u1ed5 bi\u1ebfn bao g\u1ed3m th\u1ea1ch anh, g\u1ed1m \u00e1p \u0111i\u1ec7n (nh\u01b0 PZT), v\u00e0 c\u00e1c polyme \u00e1p \u0111i\u1ec7n (nh\u01b0 PVDF).<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i Tinh th\u1ec3<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<th>\u1ee8ng d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Th\u1ea1ch anh<\/td>\n<td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh cao, t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng ch\u00ednh x\u00e1c<\/td>\n<td>Hi\u1ec7u su\u1ea5t \u00e1p \u0111i\u1ec7n th\u1ea5p<\/td>\n<td>\u0110\u1ed3ng h\u1ed3, b\u1ed9 dao \u0111\u1ed9ng<\/td>\n<\/tr>\n<tr>\n<td>G\u1ed1m \u00e1p \u0111i\u1ec7n (PZT)<\/td>\n<td>Hi\u1ec7u su\u1ea5t \u00e1p \u0111i\u1ec7n cao<\/td>\n<td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00e9m h\u01a1n th\u1ea1ch anh<\/td>\n<td>\u0110\u1ea7u d\u00f2 si\u00eau \u00e2m, c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>Polyme \u00e1p \u0111i\u1ec7n (PVDF)<\/td>\n<td>Linh ho\u1ea1t, d\u1ec5 ch\u1ebf t\u1ea1o th\u00e0nh nhi\u1ec1u h\u00ecnh d\u1ea1ng<\/td>\n<td>Hi\u1ec7u su\u1ea5t \u00e1p \u0111i\u1ec7n th\u1ea5p h\u01a1n g\u1ed1m<\/td>\n<td>C\u1ea3m bi\u1ebfn rung \u0111\u1ed9ng, thi\u1ebft b\u1ecb y sinh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a Hi\u1ec7u \u1ee9ng \u00c1p \u0111i\u1ec7n trong vi\u1ec7c T\u1ea1o ra \u0110i\u1ec7n<\/h3>\n<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n n\u0103ng. V\u00ed d\u1ee5, trong c\u00e1c m\u00e1y b\u1eadt l\u1eeda, l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean tinh th\u1ec3 t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p \u0111\u1ee7 l\u1edbn \u0111\u1ec3 t\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n. Trong c\u00e1c h\u1ec7 th\u1ed1ng thu n\u0103ng l\u01b0\u1ee3ng, \u00e1p l\u1ef1c t\u1eeb b\u01b0\u1edbc ch\u00e2n, rung \u0111\u1ed9ng c\u1ee7a m\u00e1y m\u00f3c, hay th\u1eadm ch\u00ed l\u00e0 s\u00f3ng \u00e2m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111i\u1ec7n n\u0103ng nh\u1edd c\u00e1c tinh th\u1ec3 \u00e1p \u0111i\u1ec7n.  M\u1ed9t v\u00ed d\u1ee5 kh\u00e1c l\u00e0 trong l\u0129nh v\u1ef1c y sinh, c\u00e1c thi\u1ebft b\u1ecb c\u1ea5y gh\u00e9p c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng b\u1eb1ng chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u01a1 th\u1ec3.  Trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng si\u00eau \u00e2m, c\u00e1c tinh th\u1ec3 \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra s\u00f3ng si\u00eau \u00e2m.<\/p>\n<h3>Hi\u1ec7u su\u1ea5t Chuy\u1ec3n \u0111\u1ed5i N\u0103ng l\u01b0\u1ee3ng<\/h3>\n<p>Hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a tinh th\u1ec3 \u00e1p \u0111i\u1ec7n ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m lo\u1ea1i tinh th\u1ec3, thi\u1ebft k\u1ebf c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a l\u1ef1c t\u00e1c \u0111\u1ed9ng.  M\u1eb7c d\u00f9 hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i ch\u01b0a \u0111\u1ea1t m\u1ee9c l\u00fd t\u01b0\u1edfng cho t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng, nh\u01b0ng c\u00f4ng ngh\u1ec7 n\u00e0y v\u1eabn \u0111ang \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 m\u1edf r\u1ed9ng ph\u1ea1m vi \u1ee9ng d\u1ee5ng.<\/p>\n<p>T\u00f3m l\u1ea1i, tinh th\u1ec3 \u00e1p \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n nh\u1edd hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n.  V\u1edbi s\u1ef1 \u0111a d\u1ea1ng v\u1ec1 lo\u1ea1i h\u00ecnh v\u00e0 \u1ee9ng d\u1ee5ng, tinh th\u1ec3 \u00e1p \u0111i\u1ec7n h\u1ee9a h\u1eb9n s\u1ebd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00ean ti\u1ebfn trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tinh th\u1ec3 \u00e1p \u0111i\u1ec7n \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i, t\u1eeb nh\u1eefng thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf g\u1ecdn cho \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p. Kh\u1ea3 n\u0103ng sinh ra \u0111i\u1ec7n n\u0103ng t\u1eeb \u00e1p l\u1ef1c c\u01a1 h\u1ecdc khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng thay th\u1ebf<\/p>\n","protected":false},"author":1,"featured_media":18714,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-55007","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\/55007","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=55007"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/55007\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/18714"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=55007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=55007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=55007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}