{"id":47532,"date":"2023-04-22T00:13:58","date_gmt":"2023-04-22T05:13:58","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-ultrasound-transducer\/"},"modified":"2025-01-21T07:20:41","modified_gmt":"2025-01-21T12:20:41","slug":"how-to-make-ultrasound-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-ultrasound-transducer\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u1ebf t\u1ea1o \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m"},"content":{"rendered":"<p>Vi\u1ec7c ch\u1ebf t\u1ea1o \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c v\u00e0 hi\u1ec3u bi\u1ebft s\u00e2u v\u1ec1 v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n v\u00e0 c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd li\u00ean quan. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o chi ti\u1ebft c\u00e1c b\u01b0\u1edbc v\u00e0 k\u1ef9 thu\u1eadt c\u1ea7n thi\u1ebft \u0111\u1ec3 ch\u1ebf t\u1ea1o m\u1ed9t \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m, t\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u1ebfn qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p v\u00e0 ki\u1ec3m tra.<\/p>\n<h3>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/h3>\n<p>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n l\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m, ch\u1ecbu tr\u00e1ch nhi\u1ec7m chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n th\u00e0nh n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. C\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn bao g\u1ed3m g\u1ed1m PZT (ch\u00ec zirconat titanat), PVDF (polyvinylidene fluoride) v\u00e0 c\u00e1c v\u1eadt li\u1ec7u composite. Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng, \u0111\u1ed9 nh\u1ea1y, nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c v\u00e0 c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 kh\u00e1c c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>V\u1eadt li\u1ec7u<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PZT<\/td>\n<td>\u0110\u1ed9 nh\u1ea1y cao, gi\u00e1 th\u00e0nh h\u1ee3p l\u00fd<\/td>\n<td>\u0110\u1ed9 gi\u00f2n, kh\u00f3 gia c\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td>PVDF<\/td>\n<td>Linh ho\u1ea1t, d\u1ea3i t\u1ea7n s\u1ed1 r\u1ed9ng<\/td>\n<td>\u0110\u1ed9 nh\u1ea1y th\u1ea5p h\u01a1n PZT<\/td>\n<\/tr>\n<tr>\n<td>Composite<\/td>\n<td>\u0110\u1ed9 nh\u1ea1y cao, d\u1ea3i t\u1ea7n s\u1ed1 r\u1ed9ng<\/td>\n<td>Gi\u00e1 th\u00e0nh cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Thi\u1ebft k\u1ebf v\u00e0 gia c\u00f4ng ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n<\/h3>\n<p>Sau khi ch\u1ecdn v\u1eadt li\u1ec7u, ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 gia c\u00f4ng theo k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng mong mu\u1ed1n. Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m c\u1eaft, m\u00e0i, \u0111\u00e1nh b\u00f3ng v\u00e0 ph\u1ee7 l\u1edbp \u0111i\u1ec7n c\u1ef1c. \u0110\u1ed9 ch\u00ednh x\u00e1c trong gia c\u00f4ng l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u c\u1ee7a \u0111\u1ea7u d\u00f2.<\/p>\n<h3>L\u1eafp r\u00e1p \u0111\u1ea7u d\u00f2<\/h3>\n<p>Ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o m\u1ed9t v\u1ecf b\u1ecdc b\u1ea3o v\u1ec7 v\u00e0 k\u1ebft n\u1ed1i v\u1edbi d\u00e2y d\u1eabn.  V\u1ecf b\u1ecdc th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u nh\u01b0 nh\u1ef1a epoxy ho\u1eb7c kim lo\u1ea1i, gi\u00fap b\u1ea3o v\u1ec7 ph\u1ea7n t\u1eed \u00e1p \u0111i\u1ec7n kh\u1ecfi m\u00f4i tr\u01b0\u1eddng b\u00ean ngo\u00e0i v\u00e0 cung c\u1ea5p kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i c\u01a1 h\u1ecdc.  Vi\u1ec7c l\u1ef1a ch\u1ecdn ch\u1ea5t k\u1ebft d\u00ednh v\u00e0 k\u1ef9 thu\u1eadt l\u1eafp r\u00e1p c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ea7u d\u00f2.<\/p>\n<h3>Ki\u1ec3m tra v\u00e0 hi\u1ec7u chu\u1ea9n<\/h3>\n<p>Sau khi l\u1eafp r\u00e1p, \u0111\u1ea7u d\u00f2 c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u00e0 hi\u1ec7u chu\u1ea9n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.  C\u00e1c th\u00f4ng s\u1ed1 c\u1ea7n ki\u1ec3m tra bao g\u1ed3m t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng, \u0111\u1ed9 nh\u1ea1y, \u0111\u1ed9 ph\u00e2n gi\u1ea3i v\u00e0 d\u1ea3i t\u1ea7n s\u1ed1.  Qu\u00e1 tr\u00ecnh hi\u1ec7u chu\u1ea9n gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00f4ng s\u1ed1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ea7u d\u00f2 v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.  N\u1ebfu c\u1ea7n thi\u1ebft, vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh thi\u1ebft k\u1ebf v\u00e0 l\u1eafp r\u00e1p c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t mong mu\u1ed1n.<\/p>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t<\/h3>\n<p>Hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, thi\u1ebft k\u1ebf v\u00e0 gia c\u00f4ng, k\u1ef9 thu\u1eadt l\u1eafp r\u00e1p v\u00e0 \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng. Vi\u1ec7c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ea7u d\u00f2 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n<p>T\u00f3m l\u1ea1i, vi\u1ec7c ch\u1ebf t\u1ea1o \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u00f2i h\u1ecfi s\u1ef1 t\u1ec9 m\u1ec9 v\u00e0 ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n.  T\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u1ebfn qu\u00e1 tr\u00ecnh ki\u1ec3m tra v\u00e0 hi\u1ec7u chu\u1ea9n, m\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t cu\u1ed1i c\u00f9ng c\u1ee7a \u0111\u1ea7u d\u00f2.  Hi\u1ec3u r\u00f5 c\u00e1c nguy\u00ean t\u1eafc v\u1eadt l\u00fd v\u00e0 k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o s\u1ebd gi\u00fap t\u1ea1o ra nh\u1eefng \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u kh\u1eaft khe c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c ch\u1ebf t\u1ea1o \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c v\u00e0 hi\u1ec3u bi\u1ebft s\u00e2u v\u1ec1 v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n v\u00e0 c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd li\u00ean quan. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o chi ti\u1ebft c\u00e1c b\u01b0\u1edbc v\u00e0 k\u1ef9 thu\u1eadt c\u1ea7n thi\u1ebft \u0111\u1ec3 ch\u1ebf t\u1ea1o m\u1ed9t<\/p>\n","protected":false},"author":1,"featured_media":24651,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-47532","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\/47532","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=47532"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47532\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/24651"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=47532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=47532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=47532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}