{"id":685203,"date":"2024-10-30T11:10:51","date_gmt":"2024-10-30T10:10:51","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=685203"},"modified":"2024-10-30T11:10:51","modified_gmt":"2024-10-30T10:10:51","slug":"4-loai-may-phan-tich-do-dan-nhiet-trong-kiem-tra-vat-lieu","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/4-loai-may-phan-tich-do-dan-nhiet-trong-kiem-tra-vat-lieu\/","title":{"rendered":"4 Lo\u1ea1i M\u00e1y Ph\u00e2n T\u00edch \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Trong Ki\u1ec3m Tra V\u1eadt Li\u1ec7u"},"content":{"rendered":"<p class=\"sidekick\">4 Lo\u1ea1i M\u00e1y Ph\u00e2n T\u00edch \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Trong Ki\u1ec3m Tra V\u1eadt Li\u1ec7u: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch \u0111\u1ed9 d\u1eabn nhi\u1ec7t hi\u1ec7u qu\u1ea3 trong ki\u1ec3m tra v\u00e0 nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/4_loai_may_phan_tich_do_dan_nhiet_trong_kiem_tra_vat_lieu.png\" alt=\"4 Lo\u1ea1i M\u00e1y Ph\u00e2n T\u00edch \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Trong Ki\u1ec3m Tra V\u1eadt Li\u1ec7u\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>4 Lo\u1ea1i M\u00e1y Ph\u00e2n T\u00edch \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Trong Ki\u1ec3m Tra V\u1eadt Li\u1ec7u<\/h2>\n<p>M\u00e1y ph\u00e2n t\u00edch \u0111\u1ed9 d\u1eabn nhi\u1ec7t l\u00e0 c\u00f4ng c\u1ee5 quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m tra v\u00e0 \u0111\u00e1nh gi\u00e1 t\u00ednh ch\u1ea5t nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u. \u0110\u1ed9 d\u1eabn nhi\u1ec7t (k) ph\u1ea3n \u00e1nh kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t qua m\u1ed9t v\u1eadt li\u1ec7u v\u00e0 l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu trong ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 nghi\u00ean c\u1ee9u. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ed1n lo\u1ea1i m\u00e1y ph\u00e2n t\u00edch \u0111\u1ed9 d\u1eabn nhi\u1ec7t ph\u1ed5 bi\u1ebfn:<\/p>\n<h3>1. Thi\u1ebft B\u1ecb \u0110o \u0110\u1ed9 D\u1eabn Nhi\u1ec7t D\u00f2ng Nhi\u1ec7t (Heat Flow Meter)<\/h3>\n<p>Thi\u1ebft b\u1ecb \u0111o \u0111\u1ed9 d\u1eabn nhi\u1ec7t d\u00f2ng nhi\u1ec7t s\u1eed d\u1ee5ng nguy\u00ean l\u00fd d\u00f2ng nhi\u1ec7t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u. C\u00e1c c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o hai m\u1eb7t c\u1ee7a m\u1eabu v\u1eadt li\u1ec7u v\u00e0 m\u1ed9t ngu\u1ed3n nhi\u1ec7t \u0111\u1eb7t \u1edf gi\u1eefa. Nhi\u1ec7t l\u01b0\u1ee3ng truy\u1ec1n qua m\u1eabu \u0111\u01b0\u1ee3c \u0111o \u0111\u1ec3 t\u00ednh to\u00e1n \u0111\u1ed9 d\u1eabn nhi\u1ec7t.<\/p>\n<ul>\n<li><strong>\u01afu \u0111i\u1ec3m:<\/strong> D\u1ec5 s\u1eed d\u1ee5ng v\u00e0 cho k\u1ebft qu\u1ea3 nhanh ch\u00f3ng.<\/li>\n<li><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> C\u00f3 gi\u1edbi h\u1ea1n v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a m\u1eabu.<\/li>\n<\/ul>\n<h3>2. Thi\u1ebft B\u1ecb \u0110o \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Theo Ph\u01b0\u01a1ng Ph\u00e1p \u0110\u01b0\u1eddng N\u00f3ng (Hot Wire Method)<\/h3>\n<p>Ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1eddng n\u00f3ng s\u1eed d\u1ee5ng m\u1ed9t d\u00e2y nhi\u1ec7t \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng v\u00e0 \u0111\u01b0a v\u00e0o m\u1eabu v\u1eadt li\u1ec7u. Nhi\u1ec7t \u0111\u1ed9 v\u00e0 d\u00f2ng nhi\u1ec7t ph\u00e1t ra t\u1eeb d\u00e2y \u0111\u01b0\u1ee3c theo d\u00f5i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 d\u1eabn nhi\u1ec7t. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t hi\u1ec7u qu\u1ea3 cho c\u00e1c v\u1eadt li\u1ec7u r\u1eafn v\u00e0 d\u1ea1ng b\u1ed9t.<\/p>\n<ul>\n<li><strong>\u01afu \u0111i\u1ec3m:<\/strong> Ch\u00ednh x\u00e1c v\u00e0 c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho nhi\u1ec1u d\u1ea1ng v\u1eadt li\u1ec7u.<\/li>\n<li><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> C\u1ea7n ph\u1ea3i ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u1ed1t.<\/li>\n<\/ul>\n<h3>3. Thi\u1ebft B\u1ecb \u0110o \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Theo Ph\u01b0\u01a1ng Ph\u00e1p T\u1ea5m Ph\u1eb3ng Nhi\u1ec7t Kh\u00f4ng \u0110\u1ed1i X\u1ee9ng (Non-Steady-State Plate Method)<\/h3>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1eed d\u1ee5ng m\u1ed9t t\u1ea5m ph\u1eb3ng \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng m\u1ed9t ph\u1ea7n v\u00e0 \u0111\u1eb7t v\u00e0o m\u1eabu v\u1eadt li\u1ec7u. Nhi\u1ec7t \u0111\u1ed9 v\u00e0 d\u00f2ng nhi\u1ec7t qua t\u1ea5m \u0111\u01b0\u1ee3c \u0111o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a m\u1eabu. \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 cho c\u00e1c v\u1eadt li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p.<\/p>\n<ul>\n<li><strong>\u01afu \u0111i\u1ec3m:<\/strong> Ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c v\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p cao.<\/li>\n<li><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> Thi\u1ebft b\u1ecb ph\u1ee9c t\u1ea1p v\u00e0 chi ph\u00ed cao.<\/li>\n<\/ul>\n<h3>4. Thi\u1ebft B\u1ecb \u0110o \u0110\u1ed9 D\u1eabn Nhi\u1ec7t B\u1eb1ng Laser Flash (Laser Flash Method)<\/h3>\n<p>Ph\u01b0\u01a1ng ph\u00e1p Laser Flash l\u00e0 m\u1ed9t d\u1ea1ng c\u00f4ng ngh\u1ec7 cao, trong \u0111\u00f3 m\u1ed9t xung laser ng\u1eafn \u0111\u01b0\u1ee3c b\u1eafn v\u00e0o m\u1eabu v\u1eadt li\u1ec7u. S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 theo th\u1eddi gian tr\u00ean b\u1ec1 m\u1eb7t m\u1eabu \u0111\u01b0\u1ee3c ghi l\u1ea1i \u0111\u1ec3 t\u00ednh to\u00e1n \u0111\u1ed9 d\u1eabn nhi\u1ec7t. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c, th\u00edch h\u1ee3p cho nghi\u00ean c\u1ee9u khoa h\u1ecdc v\u00e0 ph\u00e1t tri\u1ec3n v\u1eadt li\u1ec7u m\u1edbi.<\/p>\n<ul>\n<li><strong>\u01afu \u0111i\u1ec3m:<\/strong> Nhanh ch\u00f3ng, ch\u00ednh x\u00e1c v\u00e0 c\u00f3 th\u1ec3 d\u00f9ng cho c\u00e1c m\u1eabu nh\u1ecf.<\/li>\n<li><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> Chi ph\u00ed cao v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n<p>Tr\u00ean \u0111\u00e2y l\u00e0 b\u1ed1n lo\u1ea1i m\u00e1y ph\u00e2n t\u00edch \u0111\u1ed9 d\u1eabn nhi\u1ec7t ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ki\u1ec3m tra v\u1eadt li\u1ec7u. M\u1ed7i lo\u1ea1i c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang, t\u00f9y theo y\u00eau c\u1ea7u v\u00e0 \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u m\u00e0 l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0\u1eddng ph\u00f9 h\u1ee3p.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>4 Lo\u1ea1i M\u00e1y Ph\u00e2n T\u00edch \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Trong Ki\u1ec3m Tra V\u1eadt Li\u1ec7u: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch \u0111\u1ed9 d\u1eabn nhi\u1ec7t hi\u1ec7u qu\u1ea3 trong ki\u1ec3m tra v\u00e0 nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u.<\/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 - 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