{"id":49388,"date":"2023-04-21T22:19:52","date_gmt":"2023-04-22T03:19:52","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-generate-electricity-from-piezoelectric-material\/"},"modified":"2025-01-21T07:16:07","modified_gmt":"2025-01-21T12:16:07","slug":"how-to-generate-electricity-from-piezoelectric-material","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-generate-electricity-from-piezoelectric-material\/","title":{"rendered":"Khai th\u00e1c \u0111i\u1ec7n n\u0103ng t\u1eeb v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n"},"content":{"rendered":"

V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u00e3 v\u00e0 \u0111ang thu h\u00fat s\u1ef1 ch\u00fa \u00fd \u0111\u00e1ng k\u1ec3 nh\u1edd kh\u1ea3 n\u0103ng 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. \u0110i\u1ec1u n\u00e0y m\u1edf ra ti\u1ec1m n\u0103ng khai th\u00e1c n\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u00e1c ngu\u1ed3n rung \u0111\u1ed9ng v\u00e0 \u00e1p l\u1ef1c trong m\u00f4i tr\u01b0\u1eddng xung quanh, t\u1eeb b\u01b0\u1edbc ch\u00e2n \u0111\u1ebfn s\u00f3ng bi\u1ec3n. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n n\u0103ng.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/h3>\n

Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0o cu\u1ed1i th\u1ebf k\u1ef7 19, m\u00f4 t\u1ea3 kh\u1ea3 n\u0103ng c\u1ee7a m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c c\u01a1 h\u1ecdc (\u00e1p \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp) v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, bi\u1ebfn d\u1ea1ng khi \u0111\u1eb7t d\u01b0\u1edbi \u0111i\u1ec7n tr\u01b0\u1eddng (\u00e1p \u0111i\u1ec7n ngh\u1ecbch \u0111\u1ea3o). Nguy\u00ean l\u00fd n\u00e0y b\u1eaft ngu\u1ed3n t\u1eeb c\u1ea5u tr\u00fac tinh th\u1ec3 b\u1ea5t \u0111\u1ed1i x\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u. Khi v\u1eadt li\u1ec7u b\u1ecb n\u00e9n ho\u1eb7c k\u00e9o gi\u00e3n, s\u1ef1 thay \u0111\u1ed5i trong c\u1ea5u tr\u00fac tinh th\u1ec3 g\u00e2y ra s\u1ef1 ph\u00e2n b\u1ed1 l\u1ea1i \u0111i\u1ec7n t\u00edch, t\u1ea1o ra \u0111i\u1ec7n \u00e1p tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u.<\/p>\n

C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/h3>\n

C\u00f3 nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 g\u1ed1m, polymer v\u00e0 composite. G\u1ed1m \u00e1p \u0111i\u1ec7n nh\u01b0 ch\u00ec zirconat titanat (PZT) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng do hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng cao. Polymer nh\u01b0 polyvinylidene fluoride (PVDF) l\u1ea1i c\u00f3 t\u00ednh linh ho\u1ea1t cao, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng u\u1ed1n cong. V\u1eadt li\u1ec7u composite k\u1ebft h\u1ee3p \u01b0u \u0111i\u1ec3m c\u1ee7a c\u1ea3 g\u1ed1m v\u00e0 polymer, mang l\u1ea1i hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n.<\/p>\n\n\n\n\n\n\n\n
Lo\u1ea1i v\u1eadt li\u1ec7u<\/th>\n\u01afu \u0111i\u1ec3m<\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n
G\u1ed1m (PZT)<\/td>\nHi\u1ec7u su\u1ea5t cao, gi\u00e1 th\u00e0nh h\u1ee3p l\u00fd<\/td>\n\u0110\u1ed9 gi\u00f2n, ch\u1ee9a ch\u00ec<\/td>\n<\/tr>\n
Polymer (PVDF)<\/td>\nLinh ho\u1ea1t, nh\u1eb9<\/td>\nHi\u1ec7u su\u1ea5t th\u1ea5p h\u01a1n g\u1ed1m<\/td>\n<\/tr>\n
Composite<\/td>\nK\u1ebft h\u1ee3p \u01b0u \u0111i\u1ec3m c\u1ee7a g\u1ed1m v\u00e0 polymer<\/td>\nGi\u00e1 th\u00e0nh cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u1ee8ng d\u1ee5ng c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n<\/h3>\n

V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb nhi\u1ec1u ngu\u1ed3n rung \u0111\u1ed9ng kh\u00e1c nhau. V\u00ed d\u1ee5, \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nh\u00fang trong v\u1ec9a h\u00e8 \u0111\u1ec3 thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb b\u01b0\u1edbc ch\u00e2n ng\u01b0\u1eddi \u0111i b\u1ed9, ho\u1eb7c \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o \u0111\u01b0\u1eddng ray t\u00e0u h\u1ecfa \u0111\u1ec3 t\u1eadn d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng t\u1eeb chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a t\u00e0u. Ngo\u00e0i ra, \u00e1p \u0111i\u1ec7n c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb thu n\u0103ng l\u01b0\u1ee3ng t\u1eeb s\u00f3ng bi\u1ec3n, gi\u00f3 v\u00e0 th\u1eadm ch\u00ed c\u1ea3 nh\u1ecbp tim.<\/p>\n

Thi\u1ebft k\u1ebf v\u00e0 t\u1ed1i \u01b0u h\u00f3a h\u1ec7 th\u1ed1ng thu n\u0103ng l\u01b0\u1ee3ng \u00e1p \u0111i\u1ec7n<\/h3>\n

Hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng thu n\u0103ng l\u01b0\u1ee3ng \u00e1p \u0111i\u1ec7n ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m lo\u1ea1i v\u1eadt li\u1ec7u, thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac v\u00e0 m\u1ea1ch \u0111i\u1ec7n k\u1ebft n\u1ed1i. Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a v\u1eadt li\u1ec7u v\u1edbi t\u1ea7n s\u1ed1 rung \u0111\u1ed9ng c\u1ee7a ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a. V\u00ed d\u1ee5, n\u1ebfu ngu\u1ed3n rung \u0111\u1ed9ng l\u00e0 s\u00f3ng si\u00eau \u00e2m, vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 t\u1ea7n s\u1ed1 ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p li\u00ean quan \u0111\u1ebfn s\u00f3ng si\u00eau \u00e2m, c\u00e1c thi\u1ebft b\u1ecb t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nh\u01b0 Beijing Ultrasonic c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t n\u1ebfu ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee5 th\u1ec3.<\/p>\n

Th\u00e1ch th\u1ee9c v\u00e0 tri\u1ec3n v\u1ecdng<\/h3>\n

M\u1eb7c d\u00f9 ti\u1ec1m n\u0103ng r\u1ea5t l\u1edbn, vi\u1ec7c \u1ee9ng d\u1ee5ng v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n v\u1eabn c\u00f2n \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c, bao g\u1ed3m hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u00f2n h\u1ea1n ch\u1ebf, \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t. Tuy nhi\u00ean, v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng, \u00e1p \u0111i\u1ec7n h\u1ee9a h\u1eb9n s\u1ebd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c khai th\u00e1c n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o trong t\u01b0\u01a1ng lai, g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng c\u1ee7a x\u00e3 h\u1ed9i. Vi\u1ec7c nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c v\u1eadt li\u1ec7u m\u1edbi, k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p thi\u1ebft k\u1ebf v\u00e0 t\u1ed1i \u01b0u h\u00f3a h\u1ec7 th\u1ed1ng ti\u00ean ti\u1ebfn, s\u1ebd m\u1edf ra nh\u1eefng c\u01a1 h\u1ed9i m\u1edbi cho vi\u1ec7c \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 \u00e1p \u0111i\u1ec7n trong vi\u1ec7c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng s\u1ea1ch v\u00e0 b\u1ec1n v\u1eefng.<\/p>\n","protected":false},"excerpt":{"rendered":"

V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u00e3 v\u00e0 \u0111ang thu h\u00fat s\u1ef1 ch\u00fa \u00fd \u0111\u00e1ng k\u1ec3 nh\u1edd kh\u1ea3 n\u0103ng 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. \u0110i\u1ec1u n\u00e0y m\u1edf ra ti\u1ec1m n\u0103ng khai th\u00e1c n\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u00e1c ngu\u1ed3n rung \u0111\u1ed9ng v\u00e0 \u00e1p l\u1ef1c trong m\u00f4i tr\u01b0\u1eddng xung quanh, t\u1eeb b\u01b0\u1edbc<\/p>\n","protected":false},"author":1,"featured_media":23778,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-49388","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\/49388","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=49388"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/49388\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/23778"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=49388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=49388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=49388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}