{"id":678188,"date":"2024-08-03T13:27:44","date_gmt":"2024-08-03T12:27:44","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=678188"},"modified":"2024-08-03T13:27:44","modified_gmt":"2024-08-03T12:27:44","slug":"cam-bien-nhiet-sac-phat-hien-qua-nhiet-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cam-bien-nhiet-sac-phat-hien-qua-nhiet-nhu-the-nao\/","title":{"rendered":"C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc ph\u00e1t hi\u1ec7n qu\u00e1 nhi\u1ec7t nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"<p class=\"sidekick\">C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc ph\u00e1t hi\u1ec7n qu\u00e1 nhi\u1ec7t th\u00f4ng qua vi\u1ec7c \u0111o l\u01b0\u1eddng s\u1ef1 thay \u0111\u1ed5i m\u00e0u s\u1eafc do nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao, gi\u00fap b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi h\u01b0 h\u1ecfng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cam_bien_nhiet_sac_phat_hien_qua_nhiet_nhu_the_nao.png\" alt=\"C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc ph\u00e1t hi\u1ec7n qu\u00e1 nhi\u1ec7t nh\u01b0 th\u1ebf n\u00e0o\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc ph\u00e1t hi\u1ec7n qu\u00e1 nhi\u1ec7t nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, vi\u1ec7c ph\u00e1t hi\u1ec7n qu\u00e1 nhi\u1ec7t l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t. M\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y l\u00e0 c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc. C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc s\u1eed d\u1ee5ng c\u00e1c d\u1ea3i nhi\u1ec7t s\u1eafc \u0111\u1ed9ng \u0111\u1ec3 thay \u0111\u1ed5i m\u00e0u s\u1eafc khi nhi\u1ec7t \u0111\u1ed9 xung quanh thay \u0111\u1ed5i, gi\u00fap ng\u01b0\u1eddi s\u1eed d\u1ee5ng d\u1ec5 d\u00e0ng quan s\u00e1t v\u00e0 ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n m\u1ee9c an to\u00e0n.<\/p>\n<h2>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc<\/h2>\n<p>C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng quang h\u1ecdc g\u1ecdi l\u00e0 nhi\u1ec7t s\u1eafc (thermochromism). D\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9, c\u00e1c h\u1ee3p ch\u1ea5t nhi\u1ec7t s\u1eafc s\u1ebd thay \u0111\u1ed5i c\u1ea5u tr\u00fac ph\u00e2n t\u1eed, d\u1eabn \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i trong c\u00e1ch ch\u00fang h\u1ea5p th\u1ee5 v\u00e0 ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng. T\u1eeb \u0111\u00f3, m\u00e0u s\u1eafc c\u1ee7a ch\u00fang s\u1ebd thay \u0111\u1ed5i. C\u00e1c h\u1ee3p ch\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o m\u1ed9t l\u1edbp nh\u1ef1a trong su\u1ed1t ho\u1eb7c ch\u1ea5t n\u1ec1n kh\u00e1c \u0111\u1ec3 t\u1ea1o n\u00ean c\u00e1c c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc.<\/p>\n<h2>\u1ee8ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc<\/h2>\n<ul>\n<li><strong>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 trong c\u00e1c h\u1ec7 th\u1ed1ng c\u01a1 kh\u00ed:<\/strong> C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a \u0111\u1ed9ng c\u01a1, m\u00e1y b\u01a1m, v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c \u0111\u1ec3 ph\u00e1t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t.<\/li>\n<li><strong>Ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec:<\/strong> Trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec, c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c v\u00f9ng c\u00f3 nguy c\u01a1 qu\u00e1 nhi\u1ec7t, t\u1eeb \u0111\u00f3 ti\u1ebfn h\u00e0nh c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba k\u1ecbp th\u1eddi.<\/li>\n<li><strong>\u1ee8ng d\u1ee5ng y t\u1ebf:<\/strong> Trong c\u00e1c thi\u1ebft b\u1ecb y t\u1ebf, c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc gi\u00fap theo d\u00f5i nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 v\u00e0 c\u00e1c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 s\u1ed1ng kh\u00e1c nh\u1ea1y c\u1ea3m v\u1edbi dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9.<\/li>\n<\/ul>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc<\/h2>\n<ol>\n<li><strong>\u00c1p d\u1ee5ng c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc:<\/strong> D\u00e1n ho\u1eb7c g\u1eafn c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc l\u00ean b\u1ec1 m\u1eb7t c\u1ea7n gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li><strong>Quan s\u00e1t m\u00e0u s\u1eafc:<\/strong> Theo d\u00f5i s\u1ef1 bi\u1ebfn \u0111\u1ed5i m\u00e0u s\u1eafc c\u1ee7a c\u1ea3m bi\u1ebfn \u0111\u1ec3 nh\u1eadn bi\u1ebft nhi\u1ec7t \u0111\u1ed9 hi\u1ec7n t\u1ea1i.<\/li>\n<li><strong>Gi\u1ea3i th\u00edch m\u00e0u s\u1eafc:<\/strong> S\u1eed d\u1ee5ng b\u1ea3ng m\u00e0u \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u00e0u s\u1eafc quan s\u00e1t \u0111\u01b0\u1ee3c tr\u00ean c\u1ea3m bi\u1ebfn.<\/li>\n<\/ol>\n<h2>V\u00ed d\u1ee5 v\u1ec1 s\u1ef1 thay \u0111\u1ed5i m\u00e0u s\u1eafc<\/h2>\n<p>Gi\u1ea3 s\u1eed ta c\u00f3 m\u1ed9t c\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc thay \u0111\u1ed5i t\u1eeb m\u00e0u xanh l\u00e1 c\u00e2y sang m\u00e0u \u0111\u1ecf khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng t\u1eeb 30\u00b0C \u0111\u1ebfn 70\u00b0C. Khi m\u00e1y m\u00f3c ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, m\u00e0u c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 l\u00e0 m\u00e0u xanh l\u00e1 c\u00e2y, t\u01b0\u01a1ng \u1ee9ng v\u1edbi nhi\u1ec7t \u0111\u1ed9 t\u1eeb 30\u00b0C \u0111\u1ebfn 40\u00b0C. Khi nhi\u1ec7t \u0111\u1ed9 b\u1eaft \u0111\u1ea7u t\u0103ng, m\u00e0u s\u1eafc s\u1ebd d\u1ea7n chuy\u1ec3n sang m\u00e0u v\u00e0ng (40\u00b0C \u0111\u1ebfn 50\u00b0C), m\u00e0u cam (50\u00b0C \u0111\u1ebfn 60\u00b0C), v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 m\u00e0u \u0111\u1ecf, b\u00e1o hi\u1ec7u hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111\u01a1n gi\u1ea3n nh\u01b0ng r\u1ea5t hi\u1ec7u qu\u1ea3 gi\u00fap ph\u00e1t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, t\u1eeb c\u01a1 kh\u00ed \u0111\u1ebfn y t\u1ebf. B\u1eb1ng c\u00e1ch thay \u0111\u1ed5i m\u00e0u s\u1eafc d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9, n\u00f3 cung c\u1ea5p m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c tr\u1ef1c quan v\u00e0 d\u1ec5 d\u00e0ng \u0111\u1ec3 gi\u00e1m s\u00e1t v\u00e0 ph\u00f2ng ng\u1eeba c\u00e1c nguy c\u01a1 li\u00ean quan \u0111\u1ebfn qu\u00e1 nhi\u1ec7t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ea3m bi\u1ebfn nhi\u1ec7t s\u1eafc ph\u00e1t hi\u1ec7n qu\u00e1 nhi\u1ec7t th\u00f4ng qua vi\u1ec7c \u0111o l\u01b0\u1eddng s\u1ef1 thay \u0111\u1ed5i m\u00e0u s\u1eafc do nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao, gi\u00fap b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi h\u01b0 h\u1ecfng.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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