{"id":49396,"date":"2023-04-21T22:19:29","date_gmt":"2023-04-22T03:19:29","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-generate-electricity-from-piezoelectric-crystal\/"},"modified":"2025-01-21T07:16:02","modified_gmt":"2025-01-21T12:16:02","slug":"how-to-generate-electricity-from-piezoelectric-crystal","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-generate-electricity-from-piezoelectric-crystal\/","title":{"rendered":"T\u1ea1o \u0111i\u1ec7n t\u1eeb tinh th\u1ec3 \u00e1p \u0111i\u1ec7n: H\u01b0\u1edbng d\u1eabn chi ti\u1ebft"},"content":{"rendered":"<p>Piezoelectric l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd th\u00fa v\u1ecb, n\u01a1i m\u1ed9t s\u1ed1 lo\u1ea1i tinh th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc.  Kh\u1ea3 n\u0103ng bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh \u0111i\u1ec7n n\u0103ng n\u00e0y m\u1edf ra ti\u1ec1m n\u0103ng to l\u1edbn cho vi\u1ec7c t\u1ea1o ra \u0111i\u1ec7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u1eeb c\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng rung \u0111\u1ed9ng xung quanh ch\u00fang ta. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o chi ti\u1ebft v\u1ec1 c\u00e1ch th\u1ee9c t\u1ea1o ra \u0111i\u1ec7n t\u1eeb tinh th\u1ec3 piezoelectric.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a tinh th\u1ec3 Piezoelectric<\/h3>\n<p>Tinh th\u1ec3 piezoelectric s\u1edf h\u1eefu m\u1ed9t c\u1ea5u tr\u00fac tinh th\u1ec3 \u0111\u1eb7c bi\u1ec7t. Khi b\u1ecb n\u00e9n ho\u1eb7c k\u00e9o gi\u00e3n, s\u1ef1 thay \u0111\u1ed5i trong c\u1ea5u tr\u00fac n\u00e0y l\u00e0m l\u1ec7ch t\u00e2m \u0111i\u1ec7n t\u00edch, t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng v\u00e0 do \u0111\u00f3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p tr\u00ean b\u1ec1 m\u1eb7t tinh th\u1ec3. Hi\u1ec7u \u1ee9ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c, ngh\u0129a l\u00e0 khi \u00e1p d\u1ee5ng \u0111i\u1ec7n \u00e1p v\u00e0o tinh th\u1ec3, n\u00f3 s\u1ebd thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng.<\/p>\n<h3>C\u00e1c lo\u1ea1i tinh th\u1ec3 Piezoelectric<\/h3>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i tinh th\u1ec3 piezoelectric kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 \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 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, c\u1ea3m bi\u1ebfn<\/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>D\u1ec5 v\u1ee1<\/td>\n<td>M\u00e1y ph\u00e1t si\u00eau \u00e2m, \u0111\u1ea7u \u0111\u00e1nh l\u1eeda<\/td>\n<\/tr>\n<tr>\n<td>Polyme \u00e1p \u0111i\u1ec7n (PVDF)<\/td>\n<td>Linh ho\u1ea1t, d\u1ec5 ch\u1ebf t\u1ea1o<\/td>\n<td>Hi\u1ec7u su\u1ea5t \u00e1p \u0111i\u1ec7n th\u1ea5p h\u01a1n g\u1ed1m<\/td>\n<td>C\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t, micro<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Thi\u1ebft k\u1ebf m\u1ea1ch \u0111i\u1ec7n cho vi\u1ec7c thu n\u0103ng l\u01b0\u1ee3ng<\/h3>\n<p>\u0110\u1ec3 thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb tinh th\u1ec3 piezoelectric, c\u1ea7n ph\u1ea3i thi\u1ebft k\u1ebf m\u1ed9t m\u1ea1ch \u0111i\u1ec7n ph\u00f9 h\u1ee3p. M\u1ea1ch n\u00e0y th\u01b0\u1eddng bao g\u1ed3m m\u1ed9t b\u1ed9 ch\u1ec9nh l\u01b0u c\u1ea7u \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC) do tinh th\u1ec3 t\u1ea1o ra th\u00e0nh d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC), m\u1ed9t t\u1ee5 \u0111i\u1ec7n \u0111\u1ec3 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng v\u00e0 m\u1ed9t m\u1ea1ch \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p \u0111\u1ec3 cung c\u1ea5p \u0111i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh cho thi\u1ebft b\u1ecb.<\/p>\n<h3>C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a vi\u1ec7c t\u1ea1o \u0111i\u1ec7n t\u1eeb tinh th\u1ec3 Piezoelectric<\/h3>\n<p>Vi\u1ec7c t\u1ea1o ra \u0111i\u1ec7n t\u1eeb tinh th\u1ec3 piezoelectric c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng, t\u1eeb vi\u1ec7c thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb rung \u0111\u1ed9ng c\u1ee7a m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p \u0111\u1ebfn vi\u1ec7c t\u1ea1o ra \u0111i\u1ec7n t\u1eeb b\u01b0\u1edbc ch\u00e2n tr\u00ean v\u1ec9a h\u00e8. V\u00ed d\u1ee5, c\u00e1c c\u1ea3m bi\u1ebfn \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng thu n\u0103ng l\u01b0\u1ee3ng rung \u0111\u1ed9ng, bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh \u0111i\u1ec7n n\u0103ng \u0111\u1ec3 cung c\u1ea5p cho c\u00e1c thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn kh\u00f4ng d\u00e2y.  M\u1ed9t \u1ee9ng d\u1ee5ng kh\u00e1c l\u00e0 s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb y sinh c\u1ea5y gh\u00e9p, n\u01a1i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc t\u1eeb chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u01a1 th\u1ec3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111i\u1ec7n n\u0103ng \u0111\u1ec3 cung c\u1ea5p cho thi\u1ebft b\u1ecb.<\/p>\n<h3>T\u1ed1i \u01b0u h\u00f3a vi\u1ec7c t\u1ea1o \u0111i\u1ec7n<\/h3>\n<p>Hi\u1ec7u su\u1ea5t t\u1ea1o \u0111i\u1ec7n t\u1eeb tinh th\u1ec3 piezoelectric ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m lo\u1ea1i tinh th\u1ec3, t\u1ea7n s\u1ed1 v\u00e0 bi\u00ean \u0111\u1ed9 c\u1ee7a rung \u0111\u1ed9ng, v\u00e0 thi\u1ebft k\u1ebf m\u1ea1ch \u0111i\u1ec7n. Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1i \u0111a.<\/p>\n<p>Vi\u1ec7c t\u1ea1o ra \u0111i\u1ec7n t\u1eeb tinh th\u1ec3 piezoelectric l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u \u0111\u1ea7y h\u1ee9a h\u1eb9n v\u1edbi ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i.  M\u1eb7c d\u00f9 c\u00f4ng ngh\u1ec7 n\u00e0y v\u1eabn \u0111ang trong giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n, nh\u01b0ng nh\u1eefng ti\u1ebfn b\u1ed9 trong v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft k\u1ebf m\u1ea1ch \u0111i\u1ec7n \u0111ang m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi cho vi\u1ec7c thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u00e1c ngu\u1ed3n rung \u0111\u1ed9ng xung quanh ch\u00fang ta, h\u01b0\u1edbng t\u1edbi m\u1ed9t t\u01b0\u01a1ng lai n\u0103ng l\u01b0\u1ee3ng b\u1ec1n v\u1eefng h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Piezoelectric l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd th\u00fa v\u1ecb, n\u01a1i m\u1ed9t s\u1ed1 lo\u1ea1i tinh th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc. Kh\u1ea3 n\u0103ng bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh \u0111i\u1ec7n n\u0103ng n\u00e0y m\u1edf ra ti\u1ec1m n\u0103ng to l\u1edbn cho vi\u1ec7c t\u1ea1o ra \u0111i\u1ec7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u1eeb c\u00e1c ngu\u1ed3n n\u0103ng<\/p>\n","protected":false},"author":1,"featured_media":26468,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-49396","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\/49396","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=49396"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/49396\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26468"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=49396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=49396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=49396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}