{"id":16284,"date":"2026-07-31T13:09:43","date_gmt":"2026-07-31T05:09:43","guid":{"rendered":"https:\/\/www.wehopower.com\/?post_type=news&#038;p=16284"},"modified":"2026-08-03T10:45:55","modified_gmt":"2026-08-03T02:45:55","slug":"shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/","title":{"rendered":"Shielded vs Unshielded C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng: C\u00e1i n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey 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=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" 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: #999;color:#999\" 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.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Introduction\" >Gi\u1edbi thi\u1ec7u<\/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.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#What_Is_a_Shielded_Inductive_Proximity_Sensor\" >C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng Shielded l\u00e0 g\u00ec?<\/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.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#What_Is_an_Unshielded_Inductive_Proximity_Sensor\" >C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn l\u00e0 g\u00ec?<\/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.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Shielded_vs_Unshielded_Inductive_Proximity_Sensors_Key_Differences\" >Shielded vs C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn: S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Sensing_Distance_Comparison\" >So s\u00e1nh kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Mounting_Flexibility\" >G\u1eafn k\u1ebft linh ho\u1ea1t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Resistance_to_Surrounding_Metal_Interference\" >Kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u kim lo\u1ea1i xung quanh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Cost_and_Availability\" >Chi ph\u00ed v\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Typical_Structural_Design_Differences\" >S\u1ef1 kh\u00e1c bi\u1ec7t thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u \u0111i\u1ec3n h\u00ecnh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Shielded_vs_Unshielded_Which_Sensor_Fits_Your_Application\" >Shielded vs Unshielded: C\u1ea3m bi\u1ebfn n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#FAQs\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#What_is_the_difference_between_shielded_and_unshielded_inductive_proximity_sensors\" >S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng \u0111\u01b0\u1ee3c che ch\u1eafn v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Which_inductive_proximity_sensor_has_a_longer_sensing_distance\" >C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng n\u00e0o c\u00f3 kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn d\u00e0i h\u01a1n?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Can_shielded_sensors_be_mounted_flush_with_metal\" >C\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c che ch\u1eafn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eafn tu\u00f4n ra b\u1eb1ng kim lo\u1ea1i?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Are_unshielded_sensors_better_than_shielded_sensors\" >C\u1ea3m bi\u1ebfn kh\u00f4ng che ch\u1eafn c\u00f3 t\u1ed1t h\u01a1n c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c che ch\u1eafn kh\u00f4ng?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/#Conclusion\" >Ph\u1ea7n k\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Gi\u1edbi thi\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">L\u1ef1a ch\u1ecdn gi\u1eefa m\u1ed9t <\/span><strong><span class=\"\">shielded c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng<\/span><\/strong><span class=\"\"> v\u00e0 m\u1ed9t ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng <\/span><strong><span class=\"\">c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1edf<\/span><\/strong><span class=\"\"> l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh c\u01a1 b\u1ea3n trong thi\u1ebft k\u1ebf t\u1ef1 \u0111\u1ed9ng h\u00f3a. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh trong x\u00e2y d\u1ef1ng, kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn v\u00e0 t\u00ednh linh ho\u1ea1t l\u1eafp \u0111\u1eb7t \u0111\u1ec3 gi\u00fap b\u1ea1n ch\u1ecdn c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_a_Shielded_Inductive_Proximity_Sensor\"><\/span><span class=\"\">M\u1ed9t Shielded l\u00e0 g\u00ec <a href=\"https:\/\/www.wehopower.com\/vi\/products\/\" target=\"_blank\" rel=\"noopener\">C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng<\/a>?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">A <\/span><strong><span class=\"\">shielded c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng<\/span><\/strong><span class=\"\"> (also\u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 g\u1eafn li\u1ec1n ho\u1eb7c c\u00f3 th\u1ec3 nh\u00fang) c\u00f3 l\u00f5i ferrite ch\u1ec9 \u0111\u1ea1o t\u1eeb tr\u01b0\u1eddng c\u1ee7a c\u1ea3m bi\u1ebfn ch\u1ec9 t\u1ecfa ra t\u1eeb m\u1eb7t ph\u00e1t hi\u1ec7n <\/span><span class=\"\">. M\u1ed9t l\u00e1 ch\u1eafn kim lo\u1ea1i bao quanh cu\u1ed9n d\u00e2y, ch\u1ee9a t\u1eeb tr\u01b0\u1eddng v\u00e0 ng\u0103n kh\u00f4ng cho n\u00f3 t\u1ecfa ra ngang ho\u1eb7c ng\u01b0\u1ee3c.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c g\u1eafn ho\u00e0n to\u00e0n v\u1edbi kim lo\u1ea1i xung quanh m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t <\/span><span class=\"\">. C\u00e1c lu\u1ed3ng c\u1ee7a c\u1ea3m bi\u1ebfn k\u00e9o d\u00e0i \u0111\u1ebfn t\u1eadn m\u1eb7t c\u1ea3m bi\u1ebfn, t\u1ea1o ra m\u1ed9t c\u1ea5u h\u00ecnh h\u00ecnh tr\u1ee5 \u0111\u1ed3ng nh\u1ea5t <\/span><span class=\"\">.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i ch\u00ednh l\u00e0 che ch\u1eafn l\u00e0m gi\u1ea3m kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn so v\u1edbi c\u00e1c thi\u1ebft k\u1ebf kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc. V\u00ed d\u1ee5: c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c che ch\u1eafn M18 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n \u1edf m\u1ee9c 5mm, trong khi phi\u00ean b\u1ea3n kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn ph\u00e1t hi\u1ec7n \u1edf m\u1ee9c 8mm.<\/span><\/p>\n<figure id=\"attachment_6970\" aria-describedby=\"caption-attachment-6970\" style=\"width: 800px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.wehopower.com\/vi\/products\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-6970 size-full\" title=\"C\u00f4ng t\u1eafc ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng h\u00ecnh tr\u1ee5 d\u00e0i LJA18 8\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA18-Long-Cylindrical-Inductive-Proximity-Switch-8.png?quality=85&strip=all\" alt=\"C\u00f4ng t\u1eafc ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng h\u00ecnh tr\u1ee5 d\u00e0i LJA18 8\" width=\"800\" height=\"800\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA18-Long-Cylindrical-Inductive-Proximity-Switch-8.png?quality=85&strip=all 800w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA18-Long-Cylindrical-Inductive-Proximity-Switch-8-300x300.png?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA18-Long-Cylindrical-Inductive-Proximity-Switch-8-500x500.png?quality=85&strip=all 500w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA18-Long-Cylindrical-Inductive-Proximity-Switch-8-768x768.png?quality=85&strip=all 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption id=\"caption-attachment-6970\" class=\"wp-caption-text\">C\u00f4ng t\u1eafc ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng h\u00ecnh tr\u1ee5 d\u00e0i LJA18 8<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_an_Unshielded_Inductive_Proximity_Sensor\"><\/span><span class=\"\">C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn l\u00e0 g\u00ec?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">M\u1ed8T <\/span><strong><span class=\"\">c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1edf<\/span><\/strong><span class=\"\"> (kh\u00f4ng g\u1eafn ph\u1eb3ng) kh\u00f4ng c\u00f3 v\u1ecf kim lo\u1ea1i xung quanh khu v\u1ef1c cu\u1ed9n d\u00e2y <\/span><span class=\"\">. Thay v\u00e0o \u0111\u00f3, cu\u1ed9n d\u00e2y \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u1ed9, ch\u1ec9 c\u00f3 m\u1ed9t n\u1eafp nh\u1ef1a che m\u1eb7t c\u1ea3m bi\u1ebfn. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t di\u1ec7n m\u1ea1o \u0111\u1eb7c bi\u1ec7t trong \u0111\u00f3 ph\u1ea7n cu\u1ed1i c\u1ee7a c\u1ea3m bi\u1ebfn k\u00e9o d\u00e0i ra ngo\u00e0i th\u00f9ng ren <\/span><span class=\"\">.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">S\u1ef1 v\u1eafng m\u1eb7t c\u1ee7a che ch\u1eafn cho ph\u00e9p t\u1eeb tr\u01b0\u1eddng t\u1ecfa ra trong m\u1ed9t m\u00f4 h\u00ecnh l\u1edbn h\u01a1n, tr\u00f2n h\u01a1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn d\u00e0i h\u01a1n-th\u01b0\u1eddng l\u00e0 1,5 \u0111\u1ebfn 2 l\u1ea7n so v\u1edbi c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c che ch\u1eafn c\u00f3 c\u00f9ng \u0111\u01b0\u1eddng k\u00ednh.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Tuy nhi\u00ean, thi\u1ebft k\u1ebf kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1edf \u0111\u00f2i h\u1ecfi m\u1ed9t v\u00f9ng kh\u00f4ng c\u00f3 kim lo\u1ea1i xung quanh c\u1ea3m bi\u1ebfn. N\u1ebfu \u0111\u01b0\u1ee3c g\u1eafn trong ho\u1eb7c g\u1ea7n kim lo\u1ea1i, c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t sai ho\u1eb7c b\u1ecb gi\u1ea3m kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn <\/span><span class=\"\">.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Shielded_vs_Unshielded_Inductive_Proximity_Sensors_Key_Differences\"><\/span><span class=\"\">Shielded vs C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn: S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Sensing_Distance_Comparison\"><\/span><span class=\"\">So s\u00e1nh kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">C\u00e1c c\u1ea3m bi\u1ebfn kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn cung c\u1ea5p kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn d\u00e0i h\u01a1n \u0111\u00e1ng k\u1ec3 v\u00ec t\u1eeb tr\u01b0\u1eddng c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng t\u1ef1 do m\u00e0 kh\u00f4ng b\u1ecb ng\u0103n ch\u1eb7n <\/span><span class=\"\">.<\/span><\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9 _5ac647c\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">T\u00ednh n\u0103ng<\/span><\/th>\n<th><span class=\"\">Che ch\u1eafn (Flush)<\/span><\/th>\n<th><span class=\"\">Kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn (Kh\u00f4ng x\u1ea3)<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong><span class=\"\">Sn \u0111i\u1ec3n h\u00ecnh (M18)<\/span><\/strong><\/td>\n<td><span class=\"\">5m m m.<\/span><\/td>\n<td><span class=\"\">8mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Sn \u0111i\u1ec3n h\u00ecnh (M30)<\/span><\/strong><\/td>\n<td><span class=\"\">Chi\u1ec1u r\u1ed9ng: 10mm<\/span><\/td>\n<td><span class=\"\">Chi\u1ec1u r\u1ed9ng: 15mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Kho\u1ea3ng c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i<\/span><\/strong><\/td>\n<td><span class=\"\">Ng\u1eafn h\u01a1n ng\u1eafn h\u01a1n.<\/span><\/td>\n<td><span class=\"\">D\u00e0i h\u01a1n 1,5 - 2x<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Khi ph\u1ea1m vi ph\u00e1t hi\u1ec7n t\u1ed1i \u0111a l\u00e0 b\u1eaft bu\u1ed9c, c\u00e1c c\u1ea3m bi\u1ebfn kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1edf l\u00e0 th\u00edch h\u1ee3p h\u01a1n. Gi\u00e1 tr\u1ecb \u0111i\u1ec7n c\u1ea3m tham chi\u1ebfu c\u1ee7a c\u1ea3m bi\u1ebfn kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1edf c\u0169ng v\u01b0\u1ee3t tr\u1ed9i (0893 H) so v\u1edbi c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c che ch\u1eafn (0845 H) <\/span><span class=\"\">, g\u00f3p ph\u1ea7n v\u00e0o kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn d\u00e0i h\u01a1n.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mounting_Flexibility\"><\/span><span class=\"\">G\u1eafn k\u1ebft linh ho\u1ea1t<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">C\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7<\/span><\/strong><span class=\"\"> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nh\u00fang tu\u00f4n ra trong \u0111\u1ed3 \u0111\u1ea1c l\u1eafp kim lo\u1ea1i. Ch\u00fang r\u1ea5t l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 kh\u00f4ng gian ch\u1eadt h\u1eb9p ho\u1eb7c c\u1ea3m bi\u1ebfn ph\u1ea3i \u0111\u01b0\u1ee3c ch\u00ecm v\u00e0o m\u00e1y m\u00f3c.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">C\u1ea3m bi\u1ebfn kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn<\/span><\/strong><span class=\"\"> y\u00eau c\u1ea7u m\u1ed9t v\u00f9ng kh\u00f4ng c\u00f3 kim lo\u1ea1i xung quanh m\u1eb7t c\u1ea3m bi\u1ebfn <\/span><span class=\"\">. Khu v\u1ef1c kh\u00f4ng c\u00f3 kim lo\u1ea1i ph\u1ea3i m\u1edf r\u1ed9ng theo m\u1ecdi h\u01b0\u1edbng, v\u1edbi \u0111\u1ed9 h\u1edf s\u00e2u \u00edt nh\u1ea5t g\u1ea5p hai l\u1ea7n kho\u1ea3ng c\u00e1ch ph\u00e1t hi\u1ec7n \u0111\u1ecbnh m\u1ee9c c\u1ee7a c\u1ea3m bi\u1ebfn <\/span><span class=\"\">. The distance from opposing metal surfaces must be no closer than three times the rated nominal sensing distance <\/span><span class=\"\">.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">For unshielded sensors, adjacent sensors must also be spaced further apart to prevent mutual interference\u2014typically 3 times the sensor diameter for unshielded vs 2 times for shielded <\/span><span class=\"\">.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Resistance_to_Surrounding_Metal_Interference\"><\/span><span class=\"\">Kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u kim lo\u1ea1i xung quanh<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">C\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7<\/span><\/strong><span class=\"\"> offer excellent resistance to interference from surrounding metal. The ferrite core and metal shield contain the magnetic field, preventing false triggers from nearby metallic objects.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">C\u1ea3m bi\u1ebfn kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn<\/span><\/strong><span class=\"\"> are more susceptible to surrounding metals because the magnetic field extends sideways and backward <\/span><span class=\"\">. Mounting them incorrectly can lead to false detection or reduced sensing distances. Some programmable sensors can be configured to reject side metal, but this typically reduces the effective sensing range <\/span><span class=\"\">.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cost_and_Availability\"><\/span><span class=\"\">Chi ph\u00ed v\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Shielded sensors are generally more common and available in a wider variety of sizes. Unshielded sensors may cost slightly more due to lower production volumes, though the price difference is often minimal for standard sizes.<\/span><\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9 _5ac647c\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Sensor Size<\/span><\/th>\n<th><span class=\"\">Shielded Detection Distance<\/span><\/th>\n<th><span class=\"\">Unshielded Detection Distance<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span class=\"\">M8<\/span><\/td>\n<td><span class=\"\">1.5\u20132mm<\/span><\/td>\n<td><span class=\"\">2\u20134mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">M12<\/span><\/td>\n<td><span class=\"\">2\u20134mm<\/span><\/td>\n<td><span class=\"\">4\u20138mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">M18<\/span><\/td>\n<td><span class=\"\">5\u20138mm<\/span><\/td>\n<td><span class=\"\">8\u201316mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">M30<\/span><\/td>\n<td><span class=\"\">10\u201315mm<\/span><\/td>\n<td><span class=\"\">15\u201330mm<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Typical_Structural_Design_Differences\"><\/span><span class=\"\">S\u1ef1 kh\u00e1c bi\u1ec7t thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u \u0111i\u1ec3n h\u00ecnh<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">C\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7<\/span><\/strong><span class=\"\">: Threads extend to the sensing face; the housing fully covers the coil; flush, uniform profile<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">C\u1ea3m bi\u1ebfn kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn<\/span><\/strong><span class=\"\">: Plastic cap extends past the threaded barrel; the housing is &#8220;peeled back&#8221; leaving the coil exposed; distinctive non-uniform profile <\/span><\/p>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Shielded_vs_Unshielded_Which_Sensor_Fits_Your_Application\"><\/span><span class=\"\">Shielded vs Unshielded: C\u1ea3m bi\u1ebfn n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Choose a shielded sensor when:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The sensor must be mounted flush with metal surfaces<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Space constraints require embedment<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Multiple sensors are mounted close together<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The application involves metal panels or fixtures around the sensor<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Maximum sensing distance is not critical<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Choose an unshielded sensor when:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Maximum possible sensing distance is required<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The sensor can be mounted with a clear metal-free zone<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Detection of smaller targets or non-ferrous metals requires extra range<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The sensor will not be surrounded by metal in the installation<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">For applications detecting aluminum, brass, or stainless steel, the longer sensing range of unshielded sensors helps compensate for material correction factors. Stainless steel reduces sensing distance to approximately 80% of mild steel, while aluminum and brass may reduce it to only 50% <\/span><span class=\"\">.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><span class=\"\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_shielded_and_unshielded_inductive_proximity_sensors\"><\/span><span class=\"\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng \u0111\u01b0\u1ee3c che ch\u1eafn v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c che ch\u1eafn l\u00e0 g\u00ec?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Shielded sensors can be mounted flush with metal and have a shorter sensing distance. Unshielded sensors provide longer detection range but require a metal-free zone around the sensing face <\/span><span class=\"\">.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Which_inductive_proximity_sensor_has_a_longer_sensing_distance\"><\/span><span class=\"\">C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng n\u00e0o c\u00f3 kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn d\u00e0i h\u01a1n?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Unshielded sensors have a longer sensing distance\u2014typically 1.5 to 2 times that of a shielded sensor of the same diameter <\/span><span class=\"\">.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_shielded_sensors_be_mounted_flush_with_metal\"><\/span><span class=\"\">C\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c che ch\u1eafn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eafn tu\u00f4n ra b\u1eb1ng kim lo\u1ea1i?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Yes. Shielded sensors are designed specifically for flush mounting in metal without affecting performance <\/span><span class=\"\">.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_unshielded_sensors_better_than_shielded_sensors\"><\/span><span class=\"\">C\u1ea3m bi\u1ebfn kh\u00f4ng che ch\u1eafn c\u00f3 t\u1ed1t h\u01a1n c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c che ch\u1eafn kh\u00f4ng?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Neither is universally better. Unshielded sensors offer longer range but require careful mounting. Shielded sensors provide mounting flexibility and greater resistance to interference <\/span><span class=\"\">.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><span class=\"\">Ph\u1ea7n k\u1ebft lu\u1eadn<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The choice between shielded and unshielded sensors depends on your application&#8217;s mounting constraints and distance requirements. Shielded sensors offer flush mounting capability and interference resistance, while unshielded sensors provide longer detection range at the cost of installation complexity. Evaluate your metal target, available mounting space, and required sensing distance before making a selection.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Need help selecting the right sensor?<\/span><\/strong><span class=\"\"> Explore the WEHO ELEC range of inductive proximity sensors at <\/span><a href=\"https:\/\/www.wehopower.com\/vi\/\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"\">https:\/\/www.wehopower.com<\/span><\/a><span class=\"\"> and contact our technical support team for expert guidance on your application.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction Choosing between a shielded inductive proximity sensor and an unshielded inductive proximity sensor is a fundamental decision in automation design. This guide explains the key differences in construction, sensing distance, and mounting flexibility to help you select the right sensor for your application. &nbsp; What Is a Shielded Inductive Proximity Sensor? A shielded inductive&hellip; <a class=\"more-link\" href=\"https:\/\/www.wehopower.com\/vi\/news\/shielded-vs-unshielded-inductive-proximity-sensors-which-one-fits-your-application\/\">Ti\u1ebfp t\u1ee5c \u0111\u1ecdc <span class=\"screen-reader-text\">Shielded vs Unshielded C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn c\u1ea3m \u1ee9ng: C\u00e1i n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n?<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":16311,"parent":0,"menu_order":132,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,148],"class_list":["post-16284","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-industry-news","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news\/16284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/comments?post=16284"}],"version-history":[{"count":3,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news\/16284\/revisions"}],"predecessor-version":[{"id":16312,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news\/16284\/revisions\/16312"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/media\/16311"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/media?parent=16284"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news_category?post=16284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}