{"id":44524,"date":"2023-04-25T14:45:45","date_gmt":"2023-04-25T19:45:45","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-temperature-transducer\/"},"modified":"2025-01-21T07:29:07","modified_gmt":"2025-01-21T12:29:07","slug":"what-is-temperature-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/what-is-temperature-transducer\/","title":{"rendered":"C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9: Kh\u00e1i ni\u1ec7m, nguy\u00ean l\u00fd v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p>Nhi\u1ec7t \u0111\u1ed9 l\u00e0 m\u1ed9t trong nh\u1eefng th\u00f4ng s\u1ed1 v\u1eadt l\u00fd quan tr\u1ecdng nh\u1ea5t c\u1ea7n \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng v\u00e0 ki\u1ec3m so\u00e1t trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb c\u00f4ng nghi\u1ec7p \u0111\u1ebfn y t\u1ebf v\u00e0 \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y.  Vi\u1ec7c \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, an to\u00e0n v\u1eadn h\u00e0nh v\u00e0 hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng. \u0110\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c \u0111o l\u01b0\u1eddng n\u00e0y, ch\u00fang ta c\u1ea7n \u0111\u1ebfn c\u00e1c c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9, hay c\u00f2n g\u1ecdi l\u00e0 transducer nhi\u1ec7t \u0111\u1ed9.  B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u transducer nhi\u1ec7t \u0111\u1ed9 l\u00e0 g\u00ec, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c lo\u1ea1i transducer ph\u1ed5 bi\u1ebfn v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang.<\/p>\n<h3>\u0110\u1ecbnh ngh\u0129a Transducer Nhi\u1ec7t \u0111\u1ed9<\/h3>\n<p>Transducer nhi\u1ec7t \u0111\u1ed9 l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 th\u00e0nh m\u1ed9t t\u00edn hi\u1ec7u \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c. T\u00edn hi\u1ec7u \u0111i\u1ec7n n\u00e0y th\u01b0\u1eddng l\u00e0 \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n ho\u1eb7c \u0111i\u1ec7n tr\u1edf, v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 hi\u1ec3n th\u1ecb b\u1edfi c\u00e1c thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng kh\u00e1c.  N\u00f3i c\u00e1ch kh\u00e1c, transducer nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t &quot;ng\u01b0\u1eddi phi\u00ean d\u1ecbch&quot; gi\u1eefa th\u1ebf gi\u1edbi v\u1eadt l\u00fd c\u1ee7a nhi\u1ec7t \u0111\u1ed9 v\u00e0 th\u1ebf gi\u1edbi \u0111i\u1ec7n t\u1eed c\u1ee7a t\u00edn hi\u1ec7u.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i Transducer Nhi\u1ec7t \u0111\u1ed9<\/h3>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i transducer nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau, m\u1ed7i lo\u1ea1i d\u1ef1a tr\u00ean m\u1ed9t nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ri\u00eang bi\u1ec7t v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.  M\u1ed9t s\u1ed1 lo\u1ea1i transducer ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111i\u1ec7n tr\u1edf (RTD):<\/strong>  D\u1ef1a tr\u00ean nguy\u00ean l\u00fd thay \u0111\u1ed5i \u0111i\u1ec7n tr\u1edf c\u1ee7a kim lo\u1ea1i theo nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li><strong>C\u1eb7p nhi\u1ec7t \u0111i\u1ec7n (Thermocouple):<\/strong> D\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng Seebeck, t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi hai kim lo\u1ea1i kh\u00e1c nhau \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau v\u00e0 \u0111\u1eb7t \u1edf hai nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111i\u1ec7n tr\u1edf b\u00e1n d\u1eabn (Thermistor):<\/strong>  D\u1ef1a tr\u00ean nguy\u00ean l\u00fd thay \u0111\u1ed5i \u0111i\u1ec7n tr\u1edf c\u1ee7a v\u1eadt li\u1ec7u b\u00e1n d\u1eabn theo nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 IC:<\/strong>  S\u1eed d\u1ee5ng m\u1ea1ch t\u00edch h\u1ee3p \u0111\u1ec3 \u0111o nhi\u1ec7t \u0111\u1ed9 v\u00e0 cung c\u1ea5p t\u00edn hi\u1ec7u \u0111\u1ea7u ra k\u1ef9 thu\u1eadt s\u1ed1 ho\u1eb7c analog.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i (IR):<\/strong>  \u0110o nhi\u1ec7t \u0111\u1ed9 t\u1eeb xa d\u1ef1a tr\u00ean b\u1ee9c x\u1ea1 h\u1ed3ng ngo\u1ea1i ph\u00e1t ra t\u1eeb v\u1eadt th\u1ec3.<\/li>\n<\/ul>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c lo\u1ea1i Transducer<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i Transducer<\/th>\n<th>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/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>RTD<\/td>\n<td>Thay \u0111\u1ed5i \u0111i\u1ec7n tr\u1edf theo nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c cao, \u1ed5n \u0111\u1ecbnh<\/td>\n<td>\u0110\u1eaft h\u01a1n Thermistor, th\u1eddi gian \u0111\u00e1p \u1ee9ng ch\u1eadm h\u01a1n Thermocouple<\/td>\n<\/tr>\n<tr>\n<td>Thermocouple<\/td>\n<td>Hi\u1ec7u \u1ee9ng Seebeck<\/td>\n<td>Th\u1eddi gian \u0111\u00e1p \u1ee9ng nhanh, d\u1ea3i \u0111o r\u1ed9ng<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c th\u1ea5p h\u01a1n RTD, c\u1ea7n b\u00f9 nhi\u1ec7t \u0111\u1ed9 \u0111i\u1ec3m n\u1ed1i l\u1ea1nh<\/td>\n<\/tr>\n<tr>\n<td>Thermistor<\/td>\n<td>Thay \u0111\u1ed5i \u0111i\u1ec7n tr\u1edf theo nhi\u1ec7t \u0111\u1ed9 (b\u00e1n d\u1eabn)<\/td>\n<td>Nh\u1ea1y, gi\u00e1 r\u1ebb<\/td>\n<td>Kh\u00f4ng tuy\u1ebfn t\u00ednh, d\u1ea3i \u0111o h\u1eb9p h\u01a1n RTD<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 IC<\/td>\n<td>M\u1ea1ch t\u00edch h\u1ee3p<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c cao, t\u00edch h\u1ee3p s\u1eb5n m\u1ea1ch x\u1eed l\u00fd t\u00edn hi\u1ec7u<\/td>\n<td>D\u1ea3i \u0111o nhi\u1ec7t \u0111\u1ed9 h\u1ea1n ch\u1ebf<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i<\/td>\n<td>B\u1ee9c x\u1ea1 h\u1ed3ng ngo\u1ea1i<\/td>\n<td>\u0110o nhi\u1ec7t \u0111\u1ed9 t\u1eeb xa, kh\u00f4ng ti\u1ebfp x\u00fac<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o b\u1ec1 m\u1eb7t v\u1eadt th\u1ec3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a Transducer Nhi\u1ec7t \u0111\u1ed9<\/h3>\n<p>Transducer nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c s\u1eed 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>  Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 trong c\u00e1c l\u00f2 nung, h\u1ec7 th\u1ed1ng HVAC, d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t.<\/li>\n<li><strong>Y t\u1ebf:<\/strong> \u0110o nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3, thi\u1ebft b\u1ecb y t\u1ebf.<\/li>\n<li><strong>\u00d4 t\u00f4:<\/strong>  Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed9ng c\u01a1, h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t.<\/li>\n<li><strong>N\u00f4ng nghi\u1ec7p:<\/strong>  Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 trong nh\u00e0 k\u00ednh, kho b\u1ea3o qu\u1ea3n.<\/li>\n<li><strong>\u0110\u1eddi s\u1ed1ng:<\/strong>  \u0110i\u1ec1u h\u00f2a nhi\u1ec7t \u0111\u1ed9, t\u1ee7 l\u1ea1nh, l\u00f2 vi s\u00f3ng.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, transducer nhi\u1ec7t \u0111\u1ed9 l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong vi\u1ec7c \u0111o l\u01b0\u1eddng v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9. Vi\u1ec7c l\u1ef1a ch\u1ecdn lo\u1ea1i transducer ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng \u1ee9ng d\u1ee5ng, bao g\u1ed3m d\u1ea3i \u0111o nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 ch\u00ednh x\u00e1c, t\u1ed1c \u0111\u1ed9 \u0111\u00e1p \u1ee9ng v\u00e0 chi ph\u00ed.  S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u0111ang h\u01b0\u1edbng t\u1edbi vi\u1ec7c n\u00e2ng cao \u0111\u1ed9 ch\u00ednh x\u00e1c, gi\u1ea3m k\u00edch th\u01b0\u1edbc v\u00e0 t\u00edch h\u1ee3p nhi\u1ec1u ch\u1ee9c n\u0103ng h\u01a1n, \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng cao c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nhi\u1ec7t \u0111\u1ed9 l\u00e0 m\u1ed9t trong nh\u1eefng th\u00f4ng s\u1ed1 v\u1eadt l\u00fd quan tr\u1ecdng nh\u1ea5t c\u1ea7n \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng v\u00e0 ki\u1ec3m so\u00e1t trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb c\u00f4ng nghi\u1ec7p \u0111\u1ebfn y t\u1ebf v\u00e0 \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. Vi\u1ec7c \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m,<\/p>\n","protected":false},"author":1,"featured_media":26938,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-44524","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\/44524","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=44524"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/44524\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26938"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=44524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=44524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=44524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}