{"id":43796,"date":"2023-04-26T01:25:18","date_gmt":"2023-04-26T06:25:18","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-an-electrical-transducer\/"},"modified":"2025-01-21T07:28:36","modified_gmt":"2025-01-21T12:28:36","slug":"what-is-an-electrical-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/what-is-an-electrical-transducer\/","title":{"rendered":"C\u1ea3m bi\u1ebfn \u0110i\u1ec7n: Kh\u00e1i ni\u1ec7m, Ph\u00e2n lo\u1ea1i v\u00e0 \u1ee8ng d\u1ee5ng"},"content":{"rendered":"<p>C\u1ea3m bi\u1ebfn \u0111i\u1ec7n l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt v\u00e0 \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. Ch\u00fang ta th\u01b0\u1eddng xuy\u00ean ti\u1ebfp x\u00fac v\u1edbi ch\u00fang m\u00e0 \u0111\u00f4i khi kh\u00f4ng nh\u1eadn ra s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ch\u00fang. V\u1eady c\u1ea3m bi\u1ebfn \u0111i\u1ec7n l\u00e0 g\u00ec v\u00e0 ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u v\u1ec1 c\u1ea3m bi\u1ebfn \u0111i\u1ec7n, ph\u00e2n lo\u1ea1i v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang.<\/p>\n<h3>\u0110\u1ecbnh ngh\u0129a c\u1ea3m bi\u1ebfn \u0111i\u1ec7n<\/h3>\n<p>C\u1ea3m bi\u1ebfn \u0111i\u1ec7n, hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 transducer \u0111i\u1ec7n, l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i m\u1ed9t d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng phi \u0111i\u1ec7n (nh\u01b0 n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc, nhi\u1ec7t, \u00e1nh s\u00e1ng, \u00e2m thanh, h\u00f3a h\u1ecdc, v.v.) th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n, c\u1ee5 th\u1ec3 l\u00e0 m\u1ed9t t\u00edn hi\u1ec7u \u0111i\u1ec7n. T\u00edn hi\u1ec7u \u0111i\u1ec7n n\u00e0y th\u01b0\u1eddng l\u00e0 \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng, x\u1eed l\u00fd v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c ho\u1eb7c cung c\u1ea5p th\u00f4ng tin v\u1ec1 \u0111\u1ea1i l\u01b0\u1ee3ng phi \u0111i\u1ec7n \u0111ang \u0111\u01b0\u1ee3c \u0111o.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i c\u1ea3m bi\u1ebfn \u0111i\u1ec7n<\/h3>\n<p>C\u1ea3m bi\u1ebfn \u0111i\u1ec7n \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean nhi\u1ec1u ti\u00eau ch\u00ed kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>D\u1ef1a tr\u00ean nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng:<\/strong> c\u1ea3m bi\u1ebfn \u0111i\u1ec7n tr\u1edf, c\u1ea3m bi\u1ebfn \u0111i\u1ec7n dung, c\u1ea3m bi\u1ebfn \u0111i\u1ec7n c\u1ea3m, c\u1ea3m bi\u1ebfn \u00e1p \u0111i\u1ec7n, c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n, c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111i\u1ec7n, c\u1ea3m bi\u1ebfn h\u00f3a h\u1ecdc, v.v.<\/p>\n<\/li>\n<li>\n<p><strong>D\u1ef1a tr\u00ean \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd \u0111\u01b0\u1ee3c \u0111o:<\/strong> c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9, c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t, c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng, c\u1ea3m bi\u1ebfn m\u1ee9c, c\u1ea3m bi\u1ebfn \u0111\u1ed9 \u1ea9m, c\u1ea3m bi\u1ebfn v\u1ecb tr\u00ed, c\u1ea3m bi\u1ebfn t\u1ed1c \u0111\u1ed9, c\u1ea3m bi\u1ebfn gia t\u1ed1c, v.v.<\/p>\n<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i c\u1ea3m bi\u1ebfn<\/th>\n<th>\u0110\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd<\/th>\n<th>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng (v\u00ed d\u1ee5)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>Nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>Bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n tr\u1edf theo nhi\u1ec7t \u0111\u1ed9 (thermistor)<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t<\/td>\n<td>\u00c1p su\u1ea5t<\/td>\n<td>Bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n tr\u1edf theo \u00e1p su\u1ea5t (piezoresistive)<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng<\/td>\n<td>C\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng<\/td>\n<td>Hi\u1ec7u \u1ee9ng quang \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn \u00e2m thanh<\/td>\n<td>\u00c2m thanh<\/td>\n<td>Bi\u1ebfn \u0111\u1ed5i \u00e1p su\u1ea5t \u00e2m thanh th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n (microphone)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn \u0111i\u1ec7n<\/h3>\n<p>C\u1ea3m bi\u1ebfn \u0111i\u1ec7n c\u00f3 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>C\u00f4ng nghi\u1ec7p:<\/strong>  \u0111o l\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u khi\u1ec3n c\u00e1c qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, t\u1ef1 \u0111\u1ed9ng h\u00f3a.<\/li>\n<li><strong>Y t\u1ebf:<\/strong> theo d\u00f5i s\u1ee9c kh\u1ecfe b\u1ec7nh nh\u00e2n, ch\u1ea9n \u0111o\u00e1n b\u1ec7nh, \u0111i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb y t\u1ebf.<\/li>\n<li><strong>Giao th\u00f4ng v\u1eadn t\u1ea3i:<\/strong> \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1, h\u1ec7 th\u1ed1ng phanh, h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb.<\/li>\n<li><strong>N\u00f4ng nghi\u1ec7p:<\/strong> theo d\u00f5i m\u00f4i tr\u01b0\u1eddng, \u0111i\u1ec1u khi\u1ec3n t\u01b0\u1edbi ti\u00eau, qu\u1ea3n l\u00fd v\u1eadt nu\u00f4i.<\/li>\n<li><strong>\u0110\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y:<\/strong>  \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, m\u00e1y gi\u1eb7t, t\u1ee7 l\u1ea1nh, \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed.<\/li>\n<\/ul>\n<h3>V\u00ed d\u1ee5 v\u1ec1 c\u1ea3m bi\u1ebfn si\u00eau \u00e2m<\/h3>\n<p>M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 c\u1ea3m bi\u1ebfn \u0111i\u1ec7n l\u00e0 c\u1ea3m bi\u1ebfn si\u00eau \u00e2m. C\u1ea3m bi\u1ebfn n\u00e0y ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd s\u00f3ng si\u00eau \u00e2m \u0111\u1ec3 \u0111o kho\u1ea3ng c\u00e1ch, m\u1ee9c ch\u1ea5t l\u1ecfng, ho\u1eb7c ph\u00e1t hi\u1ec7n v\u1eadt c\u1ea3n.  M\u1eb7c d\u00f9 c\u00f3 nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ea3m bi\u1ebfn si\u00eau \u00e2m, nh\u01b0ng 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 trong b\u1ed1i c\u1ea3nh nh\u1ea5t \u0111\u1ecbnh,  Beijing Ultrasonic c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t.<\/p>\n<p>T\u00f3m l\u1ea1i, c\u1ea3m bi\u1ebfn \u0111i\u1ec7n l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong nhi\u1ec1u h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i. S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn \u0111i\u1ec7n \u0111ang g\u00f3p ph\u1ea7n quan tr\u1ecdng v\u00e0o vi\u1ec7c n\u00e2ng cao hi\u1ec7u qu\u1ea3, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 t\u00ednh t\u1ef1 \u0111\u1ed9ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, t\u1eeb c\u00f4ng nghi\u1ec7p \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn \u0111i\u1ec7n s\u1ebd gi\u00fap ch\u00fang ta khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ea3m bi\u1ebfn \u0111i\u1ec7n l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt v\u00e0 \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. Ch\u00fang ta th\u01b0\u1eddng xuy\u00ean ti\u1ebfp x\u00fac v\u1edbi ch\u00fang m\u00e0 \u0111\u00f4i khi kh\u00f4ng nh\u1eadn ra s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ch\u00fang. V\u1eady c\u1ea3m bi\u1ebfn \u0111i\u1ec7n l\u00e0 g\u00ec v\u00e0 ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? B\u00e0i vi\u1ebft n\u00e0y<\/p>\n","protected":false},"author":1,"featured_media":26464,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-43796","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\/43796","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=43796"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/43796\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26464"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=43796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=43796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=43796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}