{"id":51124,"date":"2023-04-21T14:09:52","date_gmt":"2023-04-21T19:09:52","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-do-piezoelectric-actuators-work\/"},"modified":"2025-01-21T07:11:24","modified_gmt":"2025-01-21T12:11:24","slug":"how-do-piezoelectric-actuators-work","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-do-piezoelectric-actuators-work\/","title":{"rendered":"Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n"},"content":{"rendered":"

Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng k\u1ef3 di\u1ec7u c\u1ee7a v\u1eadt li\u1ec7u, \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong l\u0129nh v\u1ef1c \u0111i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c. V\u1eady ch\u00ednh x\u00e1c th\u00ec b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n (piezoelectric actuator) ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? 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, t\u1eeb nguy\u00ean l\u00fd c\u01a1 b\u1ea3n \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n.<\/p>\n

Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp v\u00e0 ngh\u1ecbch \u0111\u1ea3o<\/h3>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n ngh\u1ecbch \u0111\u1ea3o. Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n c\u00f3 hai d\u1ea1ng: tr\u1ef1c ti\u1ebfp v\u00e0 ngh\u1ecbch \u0111\u1ea3o. Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp x\u1ea3y ra khi m\u1ed9t v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n b\u1ecb bi\u1ebfn d\u1ea1ng c\u01a1 h\u1ecdc, t\u1ea1o ra \u0111i\u1ec7n t\u00edch tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3. Ng\u01b0\u1ee3c l\u1ea1i, hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n ngh\u1ecbch \u0111\u1ea3o x\u1ea3y ra khi m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00ean v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, khi\u1ebfn n\u00f3 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc. Ch\u00ednh hi\u1ec7u \u1ee9ng ngh\u1ecbch \u0111\u1ea3o n\u00e0y \u0111\u01b0\u1ee3c khai th\u00e1c \u0111\u1ec3 t\u1ea1o ra chuy\u1ec3n \u0111\u1ed9ng trong b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n.<\/p>\n

C\u1ea5u t\u1ea1o c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n<\/h3>\n

B\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb c\u00e1c v\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n nh\u01b0 ch\u00ec zirconate titanate (PZT). C\u00e1c v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c ph\u00e2n c\u1ef1c trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n. C\u1ea5u tr\u00fac c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t mi\u1ebfng g\u1ed1m \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c k\u1eb9p gi\u1eefa hai \u0111i\u1ec7n c\u1ef1c, ho\u1eb7c ph\u1ee9c t\u1ea1p h\u01a1n v\u1edbi nhi\u1ec1u l\u1edbp g\u1ed1m x\u1ebfp ch\u1ed3ng l\u00ean nhau \u0111\u1ec3 t\u0103ng h\u00e0nh tr\u00ecnh di chuy\u1ec3n.<\/p>\n

C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng<\/h3>\n

Khi m\u1ed9t \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0o c\u00e1c \u0111i\u1ec7n c\u1ef1c c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng, \u0111i\u1ec7n tr\u01b0\u1eddng t\u1ea1o ra s\u1ebd t\u00e1c \u0111\u1ed9ng l\u00ean v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n. S\u1ef1 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u, d\u00f9 r\u1ea5t nh\u1ecf, nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i b\u1eb1ng c\u00e1c c\u01a1 c\u1ea5u c\u01a1 h\u1ecdc \u0111\u1ec3 t\u1ea1o ra chuy\u1ec3n \u0111\u1ed9ng l\u1edbn h\u01a1n. T\u1ea7n s\u1ed1 v\u00e0 bi\u00ean \u0111\u1ed9 c\u1ee7a \u0111i\u1ec7n \u00e1p \u00e1p d\u1ee5ng s\u1ebd quy\u1ebft \u0111\u1ecbnh t\u1ea7n s\u1ed1 v\u00e0 bi\u00ean \u0111\u1ed9 c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng.<\/p>\n

\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n<\/h3>\n\n\n\n\n\n\n\n\n
\u01afu \u0111i\u1ec3m<\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u1ed9 ch\u00ednh x\u00e1c cao<\/td>\nGi\u00e1 th\u00e0nh t\u01b0\u01a1ng \u0111\u1ed1i cao<\/td>\n<\/tr>\n
Th\u1eddi gian \u0111\u00e1p \u1ee9ng nhanh<\/td>\nH\u00e0nh tr\u00ecnh di chuy\u1ec3n nh\u1ecf<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng t\u1ea1o l\u1ef1c l\u1edbn<\/td>\n\u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc c\u00f3 th\u1ec3 b\u1ecb h\u1ea1n ch\u1ebf<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn<\/td>\n\u1ea2nh h\u01b0\u1edfng b\u1edfi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n<\/h3>\n

B\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb c\u00f4ng ngh\u1ec7 nano \u0111\u1ebfn k\u1ef9 thu\u1eadt h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5. M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ti\u00eau bi\u1ec3u bao g\u1ed3m:<\/p>\n

    \n
  • \u0110i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c trong k\u00ednh hi\u1ec3n vi:<\/strong> B\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh v\u1ecb tr\u00ed c\u1ee7a m\u1eabu v\u1eadt v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c nanomet.<\/li>\n
  • \u0110\u1ea7u phun m\u1ef1c in:<\/strong> B\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n vi\u1ec7c phun m\u1ef1c trong c\u00e1c m\u00e1y in phun.<\/li>\n
  • Thi\u1ebft b\u1ecb si\u00eau \u00e2m:<\/strong> Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra s\u00f3ng si\u00eau \u00e2m, v\u00ed d\u1ee5 nh\u01b0 trong c\u00e1c thi\u1ebft b\u1ecb l\u00e0m s\u1ea1ch si\u00eau \u00e2m. N\u1ebfu nh\u1eafc \u0111\u1ebfn thi\u1ebft b\u1ecb si\u00eau \u00e2m, m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 th\u01b0\u01a1ng hi\u1ec7u c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn l\u00e0 Beijing Ultrasonic.<\/li>\n
  • Van \u0111i\u1ec1u khi\u1ec3n d\u00f2ng ch\u1ea3y:<\/strong> B\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng v\u00e0 kh\u00ed.<\/li>\n<\/ul>\n

    T\u00f3m l\u1ea1i, b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng c\u1ef1c k\u1ef3 ch\u00ednh x\u00e1c. M\u1eb7c d\u00f9 c\u00f2n m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf, nh\u01b0ng v\u1edbi nh\u1eefng \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i, b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n h\u1ee9a h\u1eb9n s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a nhi\u1ec1u l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng k\u1ef3 di\u1ec7u c\u1ee7a v\u1eadt li\u1ec7u, \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong l\u0129nh v\u1ef1c \u0111i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c. V\u1eady ch\u00ednh x\u00e1c th\u00ec b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u00e1p \u0111i\u1ec7n (piezoelectric actuator) ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i<\/p>\n","protected":false},"author":1,"featured_media":26480,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-51124","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\/51124","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=51124"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/51124\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26480"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=51124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=51124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=51124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}