{"id":2370,"date":"2023-05-17T11:35:08","date_gmt":"2023-05-17T03:35:08","guid":{"rendered":"https:\/\/sj-gauge.com\/?p=2370"},"modified":"2026-05-26T18:34:23","modified_gmt":"2026-05-26T10:34:23","slug":"bimetal-vs-gas-thermometers","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/vi\/bimetal-vs-gas-thermometers\/","title":{"rendered":"Nhi\u1ec7t k\u1ebf l\u01b0\u1ee1ng kim v\u00e0 nhi\u1ec7t k\u1ebf gi\u00e3n n\u1edf kh\u00ed kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i nhi\u1ec7t k\u1ebf c\u00f4ng nghi\u1ec7p, trong \u0111\u00f3 ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 nhi\u1ec7t k\u1ebf l\u01b0\u1ee1ng kim v\u00e0 nhi\u1ec7t k\u1ebf gi\u00e3n n\u1edf kh\u00ed. Hai lo\u1ea1i n\u00e0y c\u00f3 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, \u01b0u \u0111i\u1ec3m v\u00e0 gi\u1edbi h\u1ea1n kh\u00e1c nhau. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y ph\u00e2n t\u00edch c\u00e1c \u0111i\u1ec3m kh\u00e1c bi\u1ec7t quan tr\u1ecdng \u0111\u1ec3 h\u1ed7 tr\u1ee3 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng.<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1415\" height=\"1111\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-vs-gas-actuated-thermometer-comparison.png\" alt=\"\" class=\"wp-image-4525\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-vs-gas-actuated-thermometer-comparison.png 1415w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-vs-gas-actuated-thermometer-comparison-300x236.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-vs-gas-actuated-thermometer-comparison-1024x804.png 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-vs-gas-actuated-thermometer-comparison-768x603.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-vs-gas-actuated-thermometer-comparison-15x12.png 15w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-vs-gas-actuated-thermometer-comparison-600x471.png 600w\" sizes=\"(max-width: 1415px) 100vw, 1415px\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"B\u1eadt\/t\u1eaft M\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">B\u1eadt\/T\u1eaft<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #7b1e1c;color:#7b1e1c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #7b1e1c;color:#7b1e1c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sj-gauge.com\/vi\/bimetal-vs-gas-thermometers\/#1-bimetal-thermometer\" >1. Nhi\u1ec7t k\u1ebf l\u01b0\u1ee1ng kim<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sj-gauge.com\/vi\/bimetal-vs-gas-thermometers\/#2-gas-expansion-thermometer\" >2. Nhi\u1ec7t k\u1ebf gi\u00e3n n\u1edf kh\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sj-gauge.com\/vi\/bimetal-vs-gas-thermometers\/#4-still-unclear-click-the-video-below-or-contact-us\" >4. V\u1eabn ch\u01b0a r\u00f5? H\u00e3y nh\u1ea5p v\u00e0o video b\u00ean d\u01b0\u1edbi ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sj-gauge.com\/vi\/bimetal-vs-gas-thermometers\/#5-summary\" >5. T\u00f3m t\u1eaft<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-b1f30be97dd0c0e987ba41cf380843e4\" id=\"h-1-bimetal-thermometer\"><span class=\"ez-toc-section\" id=\"1-bimetal-thermometer\"><\/span>1. Nhi\u1ec7t k\u1ebf l\u01b0\u1ee1ng kim<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Nhi\u1ec7t k\u1ebf l\u01b0\u1ee1ng kim s\u1eed d\u1ee5ng hai l\u1edbp kim lo\u1ea1i c\u00f3 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t kh\u00e1c nhau \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi nhau. Khi nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i, ch\u00eanh l\u1ec7ch \u0111\u1ed9 gi\u00e3n n\u1edf l\u00e0m d\u1ea3i kim lo\u1ea1i u\u1ed1n cong v\u00e0 d\u1eabn \u0111\u1ed9ng kim ch\u1ec9 th\u1ecb. Th\u00f4ng th\u01b0\u1eddng, d\u1ea3i l\u01b0\u1ee1ng kim \u0111\u01b0\u1ee3c cu\u1ed9n th\u00e0nh l\u00f2 xo; \u0111\u1ea7u t\u1ef1 do n\u1ed1i v\u1edbi tr\u1ee5c kim, c\u00f2n \u0111\u1ea7u c\u1ed1 \u0111\u1ecbnh g\u1eafn v\u1edbi th\u00e2n nhi\u1ec7t k\u1ebf. Nhi\u1ec7t \u0111\u1ed9 t\u0103ng ho\u1eb7c gi\u1ea3m l\u00e0m cu\u1ed9n l\u01b0\u1ee1ng kim quay theo hai h\u01b0\u1edbng t\u01b0\u01a1ng \u1ee9ng, t\u1eeb \u0111\u00f3 hi\u1ec3n th\u1ecb gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 tr\u00ean m\u1eb7t s\u1ed1.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1402\" height=\"1122\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermometer-working-principle-1.png\" alt=\"\" class=\"wp-image-4529\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermometer-working-principle-1.png 1402w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermometer-working-principle-1-300x240.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermometer-working-principle-1-1024x819.png 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermometer-working-principle-1-768x615.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermometer-working-principle-1-15x12.png 15w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermometer-working-principle-1-600x480.png 600w\" sizes=\"(max-width: 1402px) 100vw, 1402px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermal-expansion-material-comparison-1-1024x768.png\" alt=\"Bimetal strip working principle and thermal expansion material comparison diagram.\" class=\"wp-image-4530\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermal-expansion-material-comparison-1-1024x768.png 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermal-expansion-material-comparison-1-300x225.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermal-expansion-material-comparison-1-768x576.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermal-expansion-material-comparison-1-16x12.png 16w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermal-expansion-material-comparison-1-600x450.png 600w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-bimetal-thermal-expansion-material-comparison-1.png 1448w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-advantages\">\u01afu \u0111i\u1ec3m<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, c\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n<\/li>\n\n\n\n<li>K\u1ebft qu\u1ea3 kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/li>\n\n\n\n<li>D\u1ea3i nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng t\u1eeb -70\u00b0C \u0111\u1ebfn 600\u00b0C<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-disadvantages\">Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Th\u1eddi gian ph\u1ea3n h\u1ed3i l\u00e2u h\u01a1n<\/li>\n\n\n\n<li>Ng\u01b0\u1eddi quan s\u00e1t ph\u1ea3i \u1edf g\u1ea7n \u0111i\u1ec3m \u0111o, kh\u00f4ng \u0111\u01b0\u1ee3c \u1edf n\u01a1i kh\u00e1c.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-620a90dc1c13532fd991ff6b410f058f\" id=\"h-2-gas-expansion-thermometer\"><span class=\"ez-toc-section\" id=\"2-gas-expansion-thermometer\"><\/span>2. Nhi\u1ec7t k\u1ebf gi\u00e3n n\u1edf kh\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Nhi\u1ec7t k\u1ebf gi\u00e3n n\u1edf kh\u00ed, c\u00f2n g\u1ecdi l\u00e0 nhi\u1ec7t k\u1ebf ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng kh\u00ed, \u0111o nhi\u1ec7t \u0111\u1ed9 d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i th\u1ec3 t\u00edch v\u00e0 \u00e1p su\u1ea5t c\u1ee7a kh\u00ed n\u1ea1p; heli (He) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng, kh\u00ed trong h\u1ec7 th\u1ed1ng gi\u00e3n n\u1edf v\u00e0 l\u00e0m thay \u0111\u1ed5i \u00e1p su\u1ea5t trong \u1ed1ng mao d\u1eabn. \u00c1p su\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ebfn c\u01a1 c\u1ea5u ch\u1ec9 th\u1ecb \u0111\u1ec3 d\u1eabn \u0111\u1ed9ng kim tr\u00ean m\u1eb7t s\u1ed1.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1402\" height=\"1122\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-gas-actuated-thermometer-working-principle-1.png\" alt=\"\" class=\"wp-image-4531\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-gas-actuated-thermometer-working-principle-1.png 1402w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-gas-actuated-thermometer-working-principle-1-300x240.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-gas-actuated-thermometer-working-principle-1-1024x819.png 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-gas-actuated-thermometer-working-principle-1-768x615.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-gas-actuated-thermometer-working-principle-1-15x12.png 15w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2023\/05\/SJ-Gauge-gas-actuated-thermometer-working-principle-1-600x480.png 600w\" sizes=\"(max-width: 1402px) 100vw, 1402px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-advantages-0\">\u01afu \u0111i\u1ec3m<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tr\u00ec ho\u00e3n ng\u1eafn<\/li>\n\n\n\n<li>D\u1ea3i nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng t\u1eeb -200\u00b0C \u0111\u1ebfn 700\u00b0C<\/li>\n\n\n\n<li>C\u00f3 th\u1ec3 quan s\u00e1t t\u1eeb xa qua \u1ed1ng mao d\u1eabn d\u00e0i \u0111\u1ebfn 60 m (A: \u0111i\u1ec3m \u0111o; B: v\u1ecb tr\u00ed quan s\u00e1t).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-disadvantages-0\">Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u00e1 cao h\u01a1n do c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p h\u01a1n khi s\u1eed d\u1ee5ng kh\u00ed \u0111\u1ed1t.<\/li>\n\n\n\n<li>K\u1ebft qu\u1ea3 s\u1ebd b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-67eebf435fd979ae291c21c3061cb592\" id=\"h-3-thermometer-comparison-table-clear-in-first-sight\">3. B\u1ea3ng so s\u00e1nh nhanh c\u00e1c lo\u1ea1i nhi\u1ec7t k\u1ebf<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td>Nhi\u1ec7t k\u1ebf l\u01b0\u1ee1ng kim<\/td><td>Nhi\u1ec7t k\u1ebf gi\u00e3n n\u1edf kh\u00ed<br>(Nhi\u1ec7t k\u1ebf ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng kh\u00ed)<\/td><\/tr><tr><td>Gi\u1edbi h\u1ea1n ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9<\/td><td>-70\u00b0C ~ 600\u00b0C<\/td><td>-200\u00b0C ~ 700\u00b0C<\/td><\/tr><tr><td>Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng<\/td><td>Kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng<\/td><td>B\u1ecb \u1ea3nh h\u01b0\u1edfng<\/td><\/tr><tr><td>Th\u1eddi gian ph\u1ea3n h\u1ed3i<\/td><td>Ch\u1eadm<\/td><td>Nhanh<\/td><\/tr><tr><td>Kho\u1ea3ng c\u00e1ch \u0111o l\u01b0\u1eddng<\/td><td>\u0110o l\u01b0\u1eddng ch\u1ec9 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n t\u1ea1i \u0111i\u1ec3m \u0111o l\u01b0\u1eddng.<\/td><td>Cho ph\u00e9p \u0111o v\u00e0 ch\u1ec9 th\u1ecb nhi\u1ec7t \u0111\u1ed9 t\u1eeb xa qua \u1ed1ng mao d\u1eabn<\/td><\/tr><tr><td>Gi\u00e1<\/td><td>R\u1ebb h\u01a1n<\/td><td>Cao h\u01a1n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-1f93f9a38c405138a3a3870c7d859aac\" id=\"h-4-still-unclear-click-the-video-below-or-contact-us\"><span class=\"ez-toc-section\" id=\"4-still-unclear-click-the-video-below-or-contact-us\"><\/span>4. V\u1eabn ch\u01b0a r\u00f5? H\u00e3y nh\u1ea5p v\u00e0o video b\u00ean d\u01b0\u1edbi ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i!<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Nhi\u1ec7t k\u1ebf l\u01b0\u1ee1ng kim v\u00e0 nhi\u1ec7t k\u1ebf ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng kh\u00ed kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?\" width=\"1290\" height=\"726\" src=\"https:\/\/www.youtube.com\/embed\/Vjse8sS800w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-2d02344b16bad616d3f744f27be7166a\" id=\"h-5-summary\"><span class=\"ez-toc-section\" id=\"5-summary\"><\/span>5. T\u00f3m t\u1eaft<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>M\u1ed7i lo\u1ea1i nhi\u1ec7t k\u1ebf c\u00f3 ph\u1ea1m vi \u1ee9ng d\u1ee5ng, \u01b0u \u0111i\u1ec3m v\u00e0 gi\u1edbi h\u1ea1n ri\u00eang. SJ Gauge h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng \u0111\u00e1nh gi\u00e1 d\u1ea3i nhi\u1ec7t, \u0111\u1ed9 ch\u00ednh x\u00e1c, v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 nhu c\u1ea7u ch\u1ec9 th\u1ecb t\u1eeb xa \u0111\u1ec3 l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p. Xem th\u00eam c\u00e1c b\u00e0i vi\u1ebft chuy\u00ean m\u00f4n v\u1ec1 \u0111o nhi\u1ec7t \u0111\u1ed9 b\u00ean d\u01b0\u1edbi.<\/p>","protected":false},"excerpt":{"rendered":"<p>There are many types of industrial thermometers. Among them, the common types are bimetallic and gas expansion thermometers. However, some people are often confused about the advantages and disadvantages between these thermometers. So let&#8217;s look at the differences between these thermometers. 1. Bimetal Thermometer Bimetal thermometers are made of two different kinds of metal bonded [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2376,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[72],"class_list":["post-2370","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-temperature"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>The Difference Between Bimetal and Gas Expansion Thermometers? - SJ Gauge | Pressure Gauges, Thermometers &amp; Pressure Sensors<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sj-gauge.com\/vi\/bimetal-vs-gas-thermometers\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Difference Between Bimetal and Gas Expansion Thermometers?\" \/>\n<meta property=\"og:description\" content=\"There are many types of industrial thermometers. 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