{"id":47684,"date":"2023-04-22T00:03:50","date_gmt":"2023-04-22T05:03:50","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-piezoelectric-transducer\/"},"modified":"2025-01-21T07:20:18","modified_gmt":"2025-01-21T12:20:18","slug":"how-to-make-piezoelectric-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-piezoelectric-transducer\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u1ebf t\u1ea1o b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n"},"content":{"rendered":"

\u00c1p \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd th\u00fa v\u1ecb, n\u01a1i v\u1eadt li\u1ec7u t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t \u0111\u1ebfn m\u00e1y t\u1ea1o s\u00f3ng si\u00eau \u00e2m. Vi\u1ec7c ch\u1ebf t\u1ea1o m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n (piezoelectric transducer) tuy kh\u00f4ng \u0111\u01a1n gi\u1ea3n nh\u01b0ng ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c v\u1edbi ki\u1ebfn th\u1ee9c v\u00e0 k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch ch\u1ebf t\u1ea1o m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n \u0111\u01a1n gi\u1ea3n.<\/p>\n

Ch\u1ecdn v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/h3>\n

V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n l\u00e0 tr\u00e1i tim c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. C\u00f3 nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c t\u00ednh ri\u00eang. C\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn bao g\u1ed3m th\u1ea1ch anh, g\u1ed1m PZT (ch\u00ec zirconat titanat), v\u00e0 PVDF (polyvinylidene fluoride). L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, g\u1ed1m PZT c\u00f3 \u0111\u1ed9 nh\u1ea1y cao, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n \u0111\u1ed9 nh\u1ea1y l\u1edbn, trong khi th\u1ea1ch anh c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao h\u01a1n.<\/p>\n\n\n\n\n\n\n\n
V\u1eadt li\u1ec7u<\/th>\n\u0110\u1ed9 nh\u1ea1y<\/th>\n\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh<\/th>\nGi\u00e1 th\u00e0nh<\/th>\n<\/tr>\n<\/thead>\n
Th\u1ea1ch anh<\/td>\nTrung b\u00ecnh<\/td>\nCao<\/td>\nCao<\/td>\n<\/tr>\n
G\u1ed1m PZT<\/td>\nCao<\/td>\nTrung b\u00ecnh<\/td>\nTrung b\u00ecnh<\/td>\n<\/tr>\n
PVDF<\/td>\nTh\u1ea5p<\/td>\nTh\u1ea5p<\/td>\nTh\u1ea5p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft b\u1ecb<\/h3>\n

Sau khi ch\u1ecdn v\u1eadt li\u1ec7u, c\u1ea7n chu\u1ea9n b\u1ecb c\u00e1c v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft b\u1ecb c\u1ea7n thi\u1ebft. B\u00ean c\u1ea1nh v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, b\u1ea1n s\u1ebd c\u1ea7n c\u00e1c \u0111i\u1ec7n c\u1ef1c \u0111\u1ec3 thu th\u1eadp \u0111i\u1ec7n \u00e1p, d\u00e2y d\u1eabn, v\u1ecf b\u1ea3o v\u1ec7, v\u00e0 keo d\u1eabn \u0111i\u1ec7n. \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng, c\u00f3 th\u1ec3 c\u1ea7n th\u00eam m\u1ea1ch khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u.<\/p>\n

G\u1eafn \u0111i\u1ec7n c\u1ef1c<\/h3>\n

B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 g\u1eafn \u0111i\u1ec7n c\u1ef1c l\u00ean v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n. \u0110i\u1ec7n c\u1ef1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb kim lo\u1ea1i m\u1ecfng nh\u01b0 b\u1ea1c ho\u1eb7c v\u00e0ng. C\u1ea7n \u0111\u1ea3m b\u1ea3o \u0111i\u1ec7n c\u1ef1c \u0111\u01b0\u1ee3c g\u1eafn ch\u1eafc ch\u1eafn v\u00e0 ti\u1ebfp x\u00fac t\u1ed1t v\u1edbi v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u. Keo d\u1eabn \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u1eafn \u0111i\u1ec7n c\u1ef1c v\u00e0 \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i \u0111i\u1ec7n.<\/p>\n

L\u1eafp r\u00e1p b\u1ed9 chuy\u1ec3n \u0111\u1ed5i<\/h3>\n

Sau khi g\u1eafn \u0111i\u1ec7n c\u1ef1c, v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1eb7t trong v\u1ecf b\u1ea3o v\u1ec7. V\u1ecf b\u1ea3o v\u1ec7 gi\u00fap b\u1ea3o v\u1ec7 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u1ecfi c\u00e1c t\u00e1c \u0111\u1ed9ng b\u00ean ngo\u00e0i v\u00e0 c\u0169ng gi\u00fap c\u1ed1 \u0111\u1ecbnh c\u00e1c th\u00e0nh ph\u1ea7n. D\u00e2y d\u1eabn \u0111\u01b0\u1ee3c h\u00e0n v\u00e0o \u0111i\u1ec7n c\u1ef1c v\u00e0 \u0111\u01b0a ra ngo\u00e0i v\u1ecf b\u1ea3o v\u1ec7.<\/p>\n

Ki\u1ec3m tra v\u00e0 hi\u1ec7u ch\u1ec9nh<\/h3>\n

Sau khi l\u1eafp r\u00e1p ho\u00e0n ch\u1ec9nh, c\u1ea7n ki\u1ec3m tra ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y hi\u1ec7n s\u00f3ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra khi t\u00e1c d\u1ee5ng l\u1ef1c l\u00ean b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. N\u1ebfu c\u1ea7n thi\u1ebft, c\u00f3 th\u1ec3 hi\u1ec7u ch\u1ec9nh b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n ho\u1eb7c thay \u0111\u1ed5i \u0111i\u1ec7n c\u1ef1c. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi s\u00f3ng si\u00eau \u00e2m, vi\u1ec7c hi\u1ec7u ch\u1ec9nh c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng, v\u00e0 n\u1ebfu n\u00f3i v\u1ec1 si\u00eau \u00e2m, Beijing Ultrasonic l\u00e0 m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn trong l\u0129nh v\u1ef1c n\u00e0y.<\/p>\n

Vi\u1ec7c ch\u1ebf t\u1ea1o b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n \u0111\u00f2i h\u1ecfi s\u1ef1 t\u1ec9 m\u1ec9 v\u00e0 ki\u1ebfn th\u1ee9c v\u1ec1 v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt. Tuy nhi\u00ean, b\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c b\u01b0\u1edbc h\u01b0\u1edbng d\u1eabn tr\u00ean, b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 t\u1ef1 ch\u1ebf t\u1ea1o m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n \u0111\u01a1n gi\u1ea3n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u01a1 b\u1ea3n. L\u01b0u \u00fd r\u1eb1ng hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o. N\u00e2ng cao ki\u1ebfn th\u1ee9c v\u00e0 th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean s\u1ebd gi\u00fap b\u1ea1n c\u1ea3i thi\u1ec7n k\u1ef9 n\u0103ng v\u00e0 ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c nh\u1eefng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p \u0111i\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00c1p \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd th\u00fa v\u1ecb, n\u01a1i v\u1eadt li\u1ec7u t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t \u0111\u1ebfn m\u00e1y t\u1ea1o s\u00f3ng si\u00eau \u00e2m. Vi\u1ec7c ch\u1ebf t\u1ea1o m\u1ed9t b\u1ed9 chuy\u1ec3n<\/p>\n","protected":false},"author":1,"featured_media":19409,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-47684","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\/47684","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=47684"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47684\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/19409"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=47684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=47684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=47684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}