{"id":673314,"date":"2024-11-02T21:39:46","date_gmt":"2024-11-02T20:39:46","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=673314"},"modified":"2024-11-02T21:39:46","modified_gmt":"2024-11-02T20:39:46","slug":"cach-may-anh-nhiet-phat-hien-nhiet-do","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-may-anh-nhiet-phat-hien-nhiet-do\/","title":{"rendered":"C\u00e1ch m\u00e1y \u1ea3nh nhi\u1ec7t ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9"},"content":{"rendered":"

C\u00e1ch m\u00e1y \u1ea3nh nhi\u1ec7t ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9: T\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y \u1ea3nh nhi\u1ec7t, c\u00e1ch ch\u00fang \u0111o v\u00e0 hi\u1ec3n th\u1ecb nhi\u1ec7t \u0111\u1ed9 tr\u00ean m\u00e0n h\u00ecnh.<\/p>\n

\"C\u00e1ch<\/p>\n

C\u00e1ch m\u00e1y \u1ea3nh nhi\u1ec7t ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9<\/h2>\n

M\u00e1y \u1ea3nh nhi\u1ec7t l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 quan tr\u1ecdng trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t nh\u1eb1m ph\u00e1t hi\u1ec7n v\u00e0 \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a c\u00e1c b\u1ec1 m\u1eb7t kh\u00e1c nhau. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd h\u1ed3ng ngo\u1ea1i, cho ph\u00e9p ch\u00fang ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9 m\u00e0 kh\u00f4ng c\u1ea7n ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch m\u00e1y \u1ea3nh nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng:<\/p>\n

C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng<\/h2>\n

M\u1ed7i v\u1eadt th\u1ec3 c\u00f3 nhi\u1ec7t \u0111\u1ed9 tr\u00ean kh\u00f4ng \u0111\u1ed9 Kelvin (0 K) \u0111\u1ec1u ph\u00e1t ra b\u1ee9c x\u1ea1 nhi\u1ec7t. M\u00e1y \u1ea3nh nhi\u1ec7t s\u1eed d\u1ee5ng c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u1ec3 ph\u00e1t hi\u1ec7n b\u1ee9c x\u1ea1 nhi\u1ec7t n\u00e0y. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ee7a lu\u1eadt Stefan-Boltzmann, m\u00e0 m\u00f4 t\u1ea3 r\u1eb1ng l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng b\u1ee9c x\u1ea1 b\u1edfi m\u1ed9t v\u1eadt th\u1ec3 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi l\u0169y th\u1eeba b\u1ed1n c\u1ee7a nhi\u1ec7t \u0111\u1ed9 tuy\u1ec7t \u0111\u1ed1i (T) c\u1ee7a v\u1eadt th\u1ec3 \u0111\u00f3:<\/p>\n

\\( E = \\sigma T^4 \\) <\/p>\n

Trong \u0111\u00f3:<\/p>\n

<\/p>\n

  • \\( E \\) l\u00e0 n\u0103ng l\u01b0\u1ee3ng b\u1ee9c x\u1ea1<\/li>\n
  • \\( \\sigma \\) l\u00e0 h\u1eb1ng s\u1ed1 Stefan-Boltzmann<\/li>\n
  • \\( T \\) l\u00e0 nhi\u1ec7t \u0111\u1ed9 tuy\u1ec7t \u0111\u1ed1i (t\u00ednh theo Kelvin)<\/li>\n

    <\/u1><\/p>\n

    C\u1ea5u t\u1ea1o c\u1ee7a m\u00e1y \u1ea3nh nhi\u1ec7t<\/h2>\n

    M\u1ed9t m\u00e1y \u1ea3nh nhi\u1ec7t bao g\u1ed3m ba th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n

    <\/p>\n

  • \u1ed0ng k\u00ednh quang h\u1ecdc:<\/strong> \u1ed0ng k\u00ednh n\u00e0y t\u1eadp trung b\u1ee9c x\u1ea1 h\u1ed3ng ngo\u1ea1i t\u1eeb \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0o c\u1ea3m bi\u1ebfn.<\/li>\n
  • C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9:<\/strong> \u0110\u00e2y l\u00e0 ph\u1ea7n quan tr\u1ecdng c\u00f3 nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i b\u1ee9c x\u1ea1 h\u1ed3ng ngo\u1ea1i th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eed.<\/li>\n
  • B\u1ed9 x\u1eed l\u00fd h\u00ecnh \u1ea3nh:<\/strong> T\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 t\u1ea1o ra h\u00ecnh \u1ea3nh nhi\u1ec7t, hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh c\u1ee7a m\u00e1y \u1ea3nh.<\/li>\n

    <\/o1><\/p>\n

    \u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n

    M\u00e1y \u1ea3nh nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau:<\/p>\n

    <\/p>\n

  • Ki\u1ec3m tra c\u00f4ng nghi\u1ec7p:<\/strong> Ph\u00e1t hi\u1ec7n l\u1ed7i trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n v\u00e0 c\u01a1 kh\u00ed.<\/li>\n
  • Ch\u1ea9n \u0111o\u00e1n y t\u1ebf:<\/strong> Gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe nh\u01b0 vi\u00eam nhi\u1ec5m ho\u1eb7c t\u1ed5n th\u01b0\u01a1ng m\u00f4.<\/li>\n
  • An ninh v\u00e0 gi\u00e1m s\u00e1t:<\/strong> D\u00f9ng trong vi\u1ec7c gi\u00e1m s\u00e1t v\u00e0 b\u1ea3o v\u1ec7 t\u00e0i s\u1ea3n.<\/li>\n
  • Nghi\u00ean c\u1ee9u khoa h\u1ecdc:<\/strong> S\u1eed d\u1ee5ng trong c\u00e1c nghi\u00ean c\u1ee9u li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 v\u00e0 b\u1ee9c x\u1ea1.<\/li>\n

    <\/u1><\/p>\n

    K\u1ebft lu\u1eadn<\/h2>\n

    M\u00e1y \u1ea3nh nhi\u1ec7t l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd, gi\u00fap ch\u00fang ta ph\u00e1t hi\u1ec7n v\u00e0 \u0111o l\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 kh\u00f4ng x\u00e2m nh\u1eadp. Hi\u1ec3u v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u0169ng nh\u01b0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 kh\u00f4ng ch\u1ec9 gi\u00fap ta \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n m\u1edbi trong c\u00e1c l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t v\u00e0 khoa h\u1ecdc.<\/p>\n","protected":false},"excerpt":{"rendered":"

    C\u00e1ch m\u00e1y \u1ea3nh nhi\u1ec7t ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9: T\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y \u1ea3nh nhi\u1ec7t, c\u00e1ch ch\u00fang \u0111o v\u00e0 hi\u1ec3n th\u1ecb nhi\u1ec7t \u0111\u1ed9 tr\u00ean m\u00e0n h\u00ecnh.<\/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":"\nC\u00e1ch m\u00e1y \u1ea3nh nhi\u1ec7t ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9<\/title>\n<meta name=\"description\" content=\"C\u00e1ch m\u00e1y \u1ea3nh nhi\u1ec7t ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9: T\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y \u1ea3nh nhi\u1ec7t, c\u00e1ch ch\u00fang \u0111o v\u00e0 hi\u1ec3n th\u1ecb nhi\u1ec7t \u0111\u1ed9 tr\u00ean m\u00e0n h\u00ecnh.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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