{"id":55109,"date":"2022-06-17T15:07:51","date_gmt":"2022-06-17T20:07:51","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-the-distance-a-bimorph-can-be-extended-before-it-breaks\/"},"modified":"2025-01-21T07:29:22","modified_gmt":"2025-01-21T12:29:22","slug":"what-is-the-distance-a-bimorph-can-be-extended-before-it-breaks","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/what-is-the-distance-a-bimorph-can-be-extended-before-it-breaks\/","title":{"rendered":"Gi\u1edbi h\u1ea1n u\u1ed1n cong c\u1ee7a bimorph tr\u01b0\u1edbc khi g\u00e3y"},"content":{"rendered":"<p>Bimorph, m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u00f3 kh\u1ea3 n\u0103ng bi\u1ebfn \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, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 c\u1ea3m bi\u1ebfn, m\u00e1y ph\u00e1t si\u00eau \u00e2m, v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng vi c\u01a1 \u0111i\u1ec7n t\u1eed.  M\u1ed9t c\u00e2u h\u1ecfi quan tr\u1ecdng khi thi\u1ebft k\u1ebf v\u00e0 s\u1eed d\u1ee5ng bimorph l\u00e0 kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a m\u00e0 n\u00f3 c\u00f3 th\u1ec3 u\u1ed1n cong ho\u1eb7c k\u00e9o d\u00e0i tr\u01b0\u1edbc khi g\u00e3y v\u1ee1. V\u1ea5n \u0111\u1ec1 n\u00e0y kh\u00f4ng \u0111\u01a1n gi\u1ea3n v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, \u0111\u00f2i h\u1ecfi s\u1ef1 ph\u00e2n t\u00edch k\u1ef9 l\u01b0\u1ee1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a Bimorph<\/h3>\n<p>Gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a bimorph, t\u1ee9c l\u00e0 kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a n\u00f3 c\u00f3 th\u1ec3 di chuy\u1ec3n tr\u01b0\u1edbc khi b\u1ecb h\u1ecfng, ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t lo\u1ea1t c\u00e1c y\u1ebfu t\u1ed1, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>V\u1eadt li\u1ec7u c\u1ea5u th\u00e0nh:<\/strong>  Bimorph th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb c\u00e1c v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n nh\u01b0 PZT (ch\u00ec zirconate titanate), PVDF (polyvinylidene fluoride), ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u composite. M\u1ed7i lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu u\u1ed1n kh\u00e1c nhau, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i.<\/li>\n<li><strong>H\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc:<\/strong>  Bimorph c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1ea1ng d\u1ea7m, d\u1ea1ng \u0111\u0129a, ho\u1eb7c d\u1ea1ng m\u00e0ng m\u1ecfng.  Chi\u1ec1u d\u00e0i, chi\u1ec1u r\u1ed9ng, \u0111\u1ed9 d\u00e0y c\u1ee7a bimorph \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu u\u1ed1n v\u00e0 gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i.<\/li>\n<li><strong>Thi\u1ebft k\u1ebf v\u00e0 c\u1ea5u tr\u00fac:<\/strong>  C\u1ea5u tr\u00fac l\u1edbp c\u1ee7a bimorph, bao g\u1ed3m s\u1ed1 l\u01b0\u1ee3ng l\u1edbp, \u0111\u1ed9 d\u00e0y t\u1eebng l\u1edbp v\u00e0 c\u00e1ch s\u1eafp x\u1ebfp c\u00e1c l\u1edbp, c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i.<\/li>\n<li><strong>\u0110i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng:<\/strong> Nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m, v\u00e0 t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n v\u00e0 gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a bimorph. V\u00ed d\u1ee5, \u1edf nhi\u1ec7t \u0111\u1ed9 cao, v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 tr\u1edf n\u00ean m\u1ec1m h\u01a1n v\u00e0 d\u1ec5 g\u00e3y h\u01a1n.<\/li>\n<\/ul>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i<\/h3>\n<p>Vi\u1ec7c x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a bimorph c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua c\u00e1c ph\u01b0\u01a1ng ph\u00e1p sau:<\/p>\n<ul>\n<li><strong>M\u00f4 ph\u1ecfng:<\/strong> S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m m\u00f4 ph\u1ecfng ph\u1ea7n t\u1eed h\u1eefu h\u1ea1n (FEA) \u0111\u1ec3 ph\u00e2n t\u00edch \u1ee9ng su\u1ea5t v\u00e0 bi\u1ebfn d\u1ea1ng c\u1ee7a bimorph d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c.<\/li>\n<li><strong>Th\u1ef1c nghi\u1ec7m:<\/strong> Ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m k\u00e9o, u\u1ed1n \u0111\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a bimorph.  \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch t\u0103ng d\u1ea7n l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean bimorph cho \u0111\u1ebfn khi n\u00f3 b\u1ecb g\u00e3y.<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Ph\u01b0\u01a1ng ph\u00e1p<\/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>M\u00f4 ph\u1ecfng<\/td>\n<td>Chi ph\u00ed th\u1ea5p, nhanh ch\u00f3ng<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o m\u00f4 h\u00ecnh v\u00e0 tham s\u1ed1 \u0111\u1ea7u v\u00e0o<\/td>\n<\/tr>\n<tr>\n<td>Th\u1ef1c nghi\u1ec7m<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c cao<\/td>\n<td>T\u1ed1n k\u00e9m, m\u1ea5t th\u1eddi gian<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>V\u00ed d\u1ee5 v\u1ec1 gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a m\u1ed9t s\u1ed1 lo\u1ea1i Bimorph<\/h3>\n<p>Gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a bimorph r\u1ea5t \u0111a d\u1ea1ng v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 \u0111\u00e3 n\u00eau tr\u00ean.  Do \u0111\u00f3, kh\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0a ra m\u1ed9t con s\u1ed1 c\u1ee5 th\u1ec3.  Tuy nhi\u00ean, \u0111\u1ec3 minh h\u1ecda, m\u1ed9t bimorph PZT d\u1ea1ng d\u1ea7m c\u00f3 chi\u1ec1u d\u00e0i 10mm, chi\u1ec1u r\u1ed9ng 2mm v\u00e0 \u0111\u1ed9 d\u00e0y 0.5mm c\u00f3 th\u1ec3 c\u00f3 gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i trong kho\u1ea3ng v\u00e0i micromet \u0111\u1ebfn v\u00e0i tr\u0103m micromet.<\/p>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a Bimorph trong si\u00eau \u00e2m<\/h3>\n<p>Bimorph c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft b\u1ecb si\u00eau \u00e2m, v\u00ed d\u1ee5 nh\u01b0 trong c\u00e1c \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m.  Vi\u1ec7c ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c \u0111\u1ed9 d\u1ecbch chuy\u1ec3n c\u1ee7a bimorph l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a thi\u1ebft b\u1ecb.  Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, n\u1ebfu c\u1ea7n thi\u1ebft ph\u1ea3i \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u c\u1ee5 th\u1ec3 v\u1ec1 thi\u1ebft b\u1ecb si\u00eau \u00e2m, Beijing Ultrasonic c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t.<\/p>\n<p>T\u00f3m l\u1ea1i, vi\u1ec7c x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i c\u1ee7a bimorph l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p, ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1.  Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y v\u00e0 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 s\u1eed d\u1ee5ng bimorph m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n c\u1ee7a thi\u1ebft b\u1ecb.  C\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e2n t\u00edch k\u1ef9 l\u01b0\u1ee1ng, k\u1ebft h\u1ee3p gi\u1eefa m\u00f4 ph\u1ecfng v\u00e0 th\u1ef1c nghi\u1ec7m, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c gi\u1edbi h\u1ea1n k\u00e9o d\u00e0i cho t\u1eebng \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bimorph, m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u00f3 kh\u1ea3 n\u0103ng bi\u1ebfn \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, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 c\u1ea3m bi\u1ebfn, m\u00e1y ph\u00e1t si\u00eau \u00e2m, v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng vi c\u01a1 \u0111i\u1ec7n t\u1eed. M\u1ed9t c\u00e2u h\u1ecfi quan tr\u1ecdng khi thi\u1ebft k\u1ebf<\/p>\n","protected":false},"author":1,"featured_media":4862,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-55109","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\/55109","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=55109"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/55109\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/4862"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=55109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=55109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=55109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}