{"id":1829,"date":"2026-10-26T09:25:00","date_gmt":"2026-10-26T09:25:00","guid":{"rendered":"https:\/\/kaivoy.com\/guides\/inductive-vs-capacitive-proximity-sensor\/"},"modified":"2026-10-26T09:25:00","modified_gmt":"2026-10-26T09:25:00","slug":"inductive-vs-capacitive-proximity-sensor","status":"publish","type":"page","link":"https:\/\/kaivoy.com\/zh\/guides\/inductive-vs-capacitive-proximity-sensor\/","title":{"rendered":"\u7535\u611f\u5f0f vs \u7535\u5bb9\u5f0f\u63a5\u8fd1\u5f00\u5173\uff1a\u4ea7\u7ebf\u4e0a\u8be5\u600e\u4e48\u9009"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Both sensor families detect an object without touching it, but they answer different questions. An <a href=\"https:\/\/kaivoy.com\/zh\/inductive-proximity-sensor-m18\/\">inductive proximity sensor<\/a> reacts to metal only; a <a href=\"https:\/\/kaivoy.com\/zh\/capacitive-proximity-sensor-m30\/\">capacitive proximity sensor<\/a> reacts to almost anything that changes the dielectric constant in front of its face &#8211; plastic, granules, liquids, glass. Picking the wrong family is the most common reason a proximity sensor &#8220;works on the bench and fails on the line&#8221;.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e24\u7c7b\u4f20\u611f\u5668\u5bf9\u6bd4<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Property<\/th><th>\u7535\u611f\u5f0f\uff08M18\uff0c8 mm\uff09<\/th><th>\u7535\u5bb9\u5f0f\uff08M30\uff0c15 mm\uff09<\/th><\/tr><\/thead><tbody><tr><td>\u68c0\u6d4b\u5bf9\u8c61<\/td><td>\u4ec5\u91d1\u5c5e\uff08\u78c1\u6027\u4e0e\u975e\u78c1\u6027\u5747\u53ef\uff09<\/td><td>\u51e0\u4e4e\u4efb\u4f55\u6750\u8d28\uff1a\u5851\u6599\u3001\u6db2\u4f53\u3001\u9897\u7c92\u3001\u73bb\u7483\u3001\u6728\u6750<\/td><\/tr><tr><td>\u5178\u578b\u68c0\u6d4b\u8ddd\u79bb<\/td><td>8 mm<\/td><td>15 mm\uff08\u7075\u654f\u5ea6\u53ef\u8c03\uff09<\/td><\/tr><tr><td>\u80fd\u5426\u9694\u5bb9\u5668\u58c1\u68c0\u6d4b<\/td><td>\u4e0d\u80fd<\/td><td>\u80fd &#8211; \u9694\u5851\u6599\u6216\u73bb\u7483\u6d4b\u6db2\u4f4d<\/td><\/tr><tr><td>\u7c89\u5c18 \/ \u6f6e\u6c14\u654f\u611f\u5ea6<\/td><td>\u4f4e<\/td><td>\u8f83\u9ad8 &#8211; \u611f\u5e94\u9762\u810f\u6c61\u53ef\u80fd\u8bef\u89e6\u53d1<\/td><\/tr><tr><td>\u5178\u578b\u7528\u9014<\/td><td>\u91d1\u5c5e\u4ef6\u5230\u4f4d \/ \u6ed1\u53f0\u4f4d\u7f6e\u68c0\u6d4b<\/td><td>\u6db2\u4f4d\u3001\u975e\u91d1\u5c5e\u4ef6\u5230\u4f4d\u3001\u5835\u6599\u68c0\u6d4b<\/td><\/tr><tr><td>\u5916\u58f3 \/ \u63a5\u7ebf<\/td><td>M18 \u87ba\u7eb9\u6876\u8eab\u3001IP \u9632\u62a4\u3001M12 \u63d2\u5934<\/td><td>M30 \u87ba\u7eb9\u6876\u8eab\u3001IP \u9632\u62a4\u3001M12 \u63d2\u5934<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u9645\u5de5\u7a0b\u4e2d\u7684\u9009\u578b\u89c4\u5219<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><b>Metal target within 8 mm?<\/b> Inductive, every time &#8211; it ignores dust, chips and coolant that would false-trigger a capacitive head.<\/li><li><b>Plastic, liquid or granular target?<\/b> Capacitive, and mount it so the face can be wiped or blown clean; sensitivity is adjusted on the body.<\/li><li><b>Wiring both types:<\/b> keep the run to the <a href=\"https:\/\/kaivoy.com\/zh\/m12-4-pin-waterproof-connector\/\">M12 waterproof connector<\/a> short and use a properly rated waterproof connector &#8211; most field failures traced to &#8220;bad sensors&#8221; are actually connector entries that were never sealed.<\/li><li><b>Range derating:<\/b> capacitive sensing distance drops with the dielectric constant of the target; apply the nominal 15 mm only to water-like media, and test-set the switch point on the real product.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Both models and the full range of <a href=\"https:\/\/kaivoy.com\/zh\/micro-electronics\/industrial-automation-components\/\">industrial automation components<\/a> are listed with dimensions and electrical data on the product pages.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u7535\u5bb9\u5f0f\u80fd\u68c0\u6d4b\u91d1\u5c5e\u5417\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u80fd\uff0c\u4f46\u4f1a\u5931\u53bb\u7535\u611f\u5f0f\u5bf9\u810f\u6c61\u7684\u514d\u75ab\u529b\uff0c\u800c\u4e14\u52a8\u4f5c\u70b9\u968f\u76ee\u6807\u53d8\u5316\u3002\u76ee\u6807\u662f\u91d1\u5c5e\u65f6\uff0c\u7535\u611f\u5f0f\u6c38\u8fdc\u662f\u66f4\u5e72\u51c0\u7684\u9009\u62e9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">KaiVoy \u4f20\u611f\u5668\u7684\u5de5\u4f5c\u7535\u538b\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Standard DC three-wire ranges used on automated lines &#8211; the exact rating and output type (PNP\/NPN) is on each product page, and we confirm it against your PLC input cards when you <a href=\"https:\/\/kaivoy.com\/zh\/contact\/\">send an enquiry<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f9b\u7535\u7f06\u578b\u8fd8\u662f\u63d2\u5934\u578b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u884c\u4e1a\u91cc\u4e24\u79cd\u90fd\u6709\uff1b\u4e0a\u9762\u94fe\u63a5\u7684\u9875\u9762\u6807\u6ce8\u4e86 KaiVoy \u578b\u53f7\u7684\u51fa\u5382\u914d\u7f6e\uff0c\u914d\u5957 M12 \u7535\u7f06\u7ebf\u53ef\u4ee5\u968f\u4f20\u611f\u5668\u4e00\u5e76\u53d1\u8d27\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>Both sensor families detect an object without touching it, but they answer different questions. An inductive proximity sensor reacts to metal only; a capacitive proximity sensor reacts to almost anything that changes the dielectric constant in front of its face &#8211; plastic, granules, liquids, glass. Picking the wrong family is the most common reason a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1701,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_zipai_imported":false,"_zipai_import_id":"","footnotes":""},"class_list":["post-1829","page","type-page","status-publish","hentry"],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"spectra_blocks_featured_image_url":null,"spectra_blocks_author_info":{"display_name":"kaivoy2026@outlook.com","avatar_url":"https:\/\/en.cravatar.com\/avatar\/ded57db17ffa2b73846f62466c76c6092d34fdd2b14f9297ad5eaf18ca1a9333?s=96&d=mm&r=g","author_link":"https:\/\/kaivoy.com\/zh\/author\/kaivoy2026outlook-com\/","description":""},"_links":{"self":[{"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/pages\/1829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/comments?post=1829"}],"version-history":[{"count":0,"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/pages\/1829\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/pages\/1701"}],"wp:attachment":[{"href":"https:\/\/kaivoy.com\/zh\/wp-json\/wp\/v2\/media?parent=1829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}