{"id":55525,"date":"2022-05-18T03:30:06","date_gmt":"2022-05-18T08:30:06","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-does-temperature-effectpiezoceramic-transducers\/"},"modified":"2025-01-21T07:12:46","modified_gmt":"2025-01-21T12:12:46","slug":"how-does-temperature-effectpiezoceramic-transducers","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-does-temperature-effectpiezoceramic-transducers\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 l\u00ean hi\u1ec7u su\u1ea5t g\u1ed1m \u00e1p \u0111i\u1ec7n"},"content":{"rendered":"<p>Nhi\u1ec7t \u0111\u1ed9 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n (piezoceramic). S\u1ef1 bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 trong c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u n\u00e0y, t\u1eeb \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn 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. Hi\u1ec3u r\u00f5 t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 l\u00ean v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 v\u1eadn h\u00e0nh c\u00e1c thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n.<\/p>\n<h3>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn h\u1eb1ng s\u1ed1 \u00e1p \u0111i\u1ec7n<\/h3>\n<p>H\u1eb1ng s\u1ed1 \u00e1p \u0111i\u1ec7n, m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt li\u1ec7u, b\u1ecb \u1ea3nh h\u01b0\u1edfng m\u1ea1nh m\u1ebd b\u1edfi nhi\u1ec7t \u0111\u1ed9.  Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng, h\u1eb1ng s\u1ed1 \u00e1p \u0111i\u1ec7n th\u01b0\u1eddng gi\u1ea3m. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt li\u1ec7u s\u1ebd k\u00e9m \u0111i \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Ng\u01b0\u1ee3c l\u1ea1i, \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, h\u1eb1ng s\u1ed1 \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 t\u0103ng, nh\u01b0ng \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0m t\u0103ng nguy c\u01a1 n\u1ee9t v\u1ee1 do \u1ee9ng su\u1ea5t nhi\u1ec7t.<\/p>\n<h3>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng<\/h3>\n<p>T\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u0169ng thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9. S\u1ef1 thay \u0111\u1ed5i n\u00e0y c\u00f3 th\u1ec3 l\u00e0m l\u1ec7ch t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb, d\u1eabn \u0111\u1ebfn gi\u1ea3m hi\u1ec7u su\u1ea5t ho\u1eb7c th\u1eadm ch\u00ed h\u1ecfng h\u00f3c.  V\u00ed d\u1ee5, trong c\u00e1c \u1ee9ng d\u1ee5ng si\u00eau \u00e2m, vi\u1ec7c l\u1ec7ch t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh ho\u1eb7c hi\u1ec7u qu\u1ea3 l\u00e0m s\u1ea1ch.<\/p>\n<h3>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec7n dung<\/h3>\n<p>\u0110i\u1ec7n dung c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u0169ng nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t \u0111\u1ed9.  S\u1ef1 thay \u0111\u1ed5i \u0111i\u1ec7n dung c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ea1ch \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n v\u00e0 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<h3>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh<\/h3>\n<p>Nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng kh\u1eed c\u1ef1c trong v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, l\u00e0m m\u1ea5t \u0111i t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao trong th\u1eddi gian d\u00e0i.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>T\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>H\u1eb1ng s\u1ed1 \u00e1p \u0111i\u1ec7n<\/td>\n<td>Gi\u1ea3m khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng<\/td>\n<\/tr>\n<tr>\n<td>T\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng<\/td>\n<td>Thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec7n dung<\/td>\n<td>Thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh<\/td>\n<td>Gi\u1ea3m \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng si\u00eau \u00e2m v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9<\/h3>\n<p>Trong c\u00e1c \u1ee9ng d\u1ee5ng si\u00eau \u00e2m, v\u00ed d\u1ee5 nh\u01b0 c\u00e1c thi\u1ebft b\u1ecb si\u00eau \u00e2m y t\u1ebf ho\u1eb7c c\u00f4ng nghi\u1ec7p, vi\u1ec7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 c\u1ee7a \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m thay \u0111\u1ed5i qu\u00e1 nhi\u1ec1u, n\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00e9p \u0111o ho\u1eb7c hi\u1ec7u qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd.  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\u00ed d\u1ee5 nh\u01b0 khi so s\u00e1nh hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c lo\u1ea1i \u0111\u1ea7u d\u00f2 kh\u00e1c nhau trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i, c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a Beijing Ultrasonic. Tuy nhi\u00ean, c\u1ea7n h\u1ea1n ch\u1ebf vi\u1ec7c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn th\u01b0\u01a1ng hi\u1ec7u n\u1ebfu kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n<p>T\u00f3m l\u1ea1i, nhi\u1ec7t \u0111\u1ed9 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c t\u00e1c \u0111\u1ed9ng n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 thi\u1ebft k\u1ebf, l\u1ef1a ch\u1ecdn v\u00e0 v\u1eadn h\u00e0nh c\u00e1c thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady.  C\u1ea7n ph\u1ea3i c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb n\u00e0y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nhi\u1ec7t \u0111\u1ed9 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n (piezoceramic). S\u1ef1 bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 trong c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u n\u00e0y, t\u1eeb \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng<\/p>\n","protected":false},"author":1,"featured_media":24649,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-55525","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\/55525","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=55525"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/55525\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/24649"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=55525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=55525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=55525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}