{"id":69122,"date":"2023-08-30T14:31:24","date_gmt":"2023-08-30T12:31:24","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/czujnik-indukcyjny-co-to-jest-i-do-czego-sluzy\/"},"modified":"2026-04-08T11:07:23","modified_gmt":"2026-04-08T09:07:23","slug":"indukcni-snimac-co-je-to-a-k-cemu-se-pouziva","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/indukcni-snimac-co-je-to-a-k-cemu-se-pouziva\/","title":{"rendered":"Induk\u010dn\u00ed sn\u00edma\u010d – Co je to a k \u010demu se pou\u017e\u00edv\u00e1?"},"content":{"rendered":"\u010cas \u010dten\u00ed:<\/span> 3<\/span> min.<\/span><\/span>\t\t
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Induk\u010dn\u00ed sn\u00edma\u010d hraje i p\u0159es sv\u00e9 mal\u00e9 rozm\u011bry v technologick\u00e9m sv\u011bt\u011b kl\u00ed\u010dovou roli. D\u00edky bezkontaktn\u00ed detekci kovov\u00fdch p\u0159edm\u011bt\u016f je nepostradateln\u00fd nejen v automatizaci. P\u0159e\u010dt\u011bte si tento \u010dl\u00e1nek a seznamte se s konstruk\u010dn\u00edm sch\u00e9matem, principem fungov\u00e1n\u00ed a p\u0159\u00edklady praktick\u00e9ho vyu\u017eit\u00ed tohoto pozoruhodn\u00e9ho za\u0159\u00edzen\u00ed!<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Induk\u010dn\u00ed sn\u00edma\u010d - konstruk\u010dn\u00ed sch\u00e9ma<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Induk\u010dn\u00ed sn\u00edma\u010d<\/strong><\/a> je mal\u00e9, ale d\u016fle\u017eit\u00e9 za\u0159\u00edzen\u00ed, kter\u00e9 se pou\u017e\u00edv\u00e1 k bezkontaktn\u00ed detekci kovov\u00fdch p\u0159edm\u011bt\u016f. Je d\u016fle\u017eitou sou\u010d\u00e1st\u00ed mnoha automatick\u00fdch \u0159\u00eddic\u00edch syst\u00e9m\u016f v pr\u016fmyslu i ve spot\u0159ebn\u00edm vybaven\u00ed.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Konstruk\u010dn\u00ed sch\u00e9ma induk\u010dn\u00edho sn\u00edma\u010de se m\u016f\u017ee m\u00edrn\u011b li\u0161it v z\u00e1vislosti na konkr\u00e9tn\u00edm modelu a v\u00fdrobci, ale existuj\u00ed n\u011bkter\u00e9 z\u00e1kladn\u00ed prvky, kter\u00e9 jsou spole\u010dn\u00e9 pro v\u011bt\u0161inu t\u011bchto za\u0159\u00edzen\u00ed.<\/p>\n

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  1. Induk\u010dn\u00ed c\u00edvka<\/span> – jedn\u00e1 se o nejd\u016fle\u017eit\u011bj\u0161\u00ed sou\u010d\u00e1st induk\u010dn\u00edho sn\u00edma\u010de. Je nap\u00e1jen st\u0159\u00eddav\u00fdm proudem a vytv\u00e1\u0159\u00ed magnetick\u00e9 pole.<\/li>\n
  2. Oscil\u00e1tor<\/span> – pr\u00e1v\u011b oscil\u00e1tor generuje st\u0159\u00eddav\u00fd proud, kter\u00fd nap\u00e1j\u00ed c\u00edvku.<\/li>\n
  3. Detek\u010dn\u00ed obvod<\/span> – detekuje zm\u011bny magnetick\u00e9ho pole generovan\u00e9ho c\u00edvkou a p\u0159ev\u00e1d\u00ed tyto zm\u011bny na v\u00fdstupn\u00ed sign\u00e1ly.<\/li>\n
  4. Kryt<\/span> – induk\u010dn\u00ed senzory jsou obvykle um\u00edst\u011bny v odoln\u00e9m krytu, kter\u00fd chr\u00e1n\u00ed vnit\u0159n\u00ed sou\u010d\u00e1sti p\u0159ed po\u0161kozen\u00edm.<\/li>\n<\/ol>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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    \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t
    Induk\u010dn\u00ed sn\u00edma\u010d p\u0159ibl\u00ed\u017een\u00ed LJ30A3-10-Z\/CY 10mm 6-36V.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    \n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tZKONTROLUJTE U SPOLE\u010cNOSTI BOTLAND<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    Jak\u00fd je princip induk\u010dn\u00edho sn\u00edma\u010de?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Sch\u00e9ma konstrukce induk\u010dn\u00edho sn\u00edma\u010de jsme ji\u017e uvedli. A na jak\u00e9m principu to funguje?<\/strong> \u010ct\u011bte d\u00e1l a dozv\u00edte se to!<\/p>\n

    Princip induk\u010dn\u00edho sn\u00edma\u010de<\/strong> je zalo\u017een na \u00fa\u010dinku elektromagnetick\u00e9 indukce<\/strong>. Uvnit\u0159 sn\u00edma\u010de je c\u00edvka, kterou prot\u00e9k\u00e1 st\u0159\u00eddav\u00fd proud generovan\u00fd oscil\u00e1torem. Tento proud vytv\u00e1\u0159\u00ed kolem c\u00edvky magnetick\u00e9 pole.<\/p>\n

    Kdy\u017e se ke sn\u00edma\u010di p\u0159ibl\u00ed\u017e\u00ed kovov\u00fd p\u0159edm\u011bt, magnetick\u00e9 pole generovan\u00e9 induk\u010dn\u00ed c\u00edvkou se naru\u0161\u00ed. Tyto poruchy jsou zp\u016fsobeny elektromagnetickou indukc\u00ed, co\u017e je proces, p\u0159i kter\u00e9m tok proudu v jednom obvodu vytv\u00e1\u0159\u00ed proud v jin\u00e9m obvodu, ani\u017e by mezi nimi bylo nutn\u00e9 p\u0159\u00edm\u00e9 spojen\u00ed. V p\u0159\u00edpad\u011b induk\u010dn\u00edho sn\u00edma\u010de ovliv\u0148uje kovov\u00fd p\u0159edm\u011bt, kter\u00fd p\u016fsob\u00ed jako druh\u00fd obvod, prim\u00e1rn\u00ed magnetick\u00e9 pole a vytv\u00e1\u0159\u00ed zm\u011bny proudu.<\/p>\n

    Sn\u00edmac\u00ed obvod<\/strong> v induk\u010dn\u00edm sn\u00edma\u010di je pak schopen tyto zm\u011bny proudu detekovat. Pokud je kovov\u00fd p\u0159edm\u011bt dostate\u010dn\u011b bl\u00edzko, tyto zm\u011bny p\u0159ekro\u010d\u00ed ur\u010ditou prahovou hodnotu, co\u017e je interpretov\u00e1no jako detekce objektu. Na z\u00e1klad\u011b t\u011bchto \u00fadaj\u016f m\u016f\u017ee senzor generovat odpov\u00eddaj\u00edc\u00ed v\u00fdstupn\u00ed sign\u00e1l, kter\u00fd se pak pou\u017e\u00edv\u00e1 k \u0159\u00edzen\u00ed r\u016fzn\u00fdch funkc\u00ed za\u0159\u00edzen\u00ed nebo syst\u00e9mu, v n\u011bm\u017e je pou\u017eit.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Induk\u010dn\u00ed sn\u00edma\u010de a jejich r\u016fzn\u00e9 typyy<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Induk\u010dn\u00ed sn\u00edma\u010de maj\u00ed sice spole\u010dn\u00fd princip \u010dinnosti, ale d\u011bl\u00ed se na r\u016fzn\u00e9 typy, kter\u00e9 jsou p\u0159izp\u016fsobeny konkr\u00e9tn\u00edm aplikac\u00edm. O jak\u00e9 typy se jedn\u00e1?<\/p>\n

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    1. Jednof\u00e1zov\u00e9<\/span> – nejb\u011b\u017en\u011bj\u0161\u00ed. Ke generov\u00e1n\u00ed magnetick\u00e9ho pole pou\u017e\u00edvaj\u00ed jedin\u00fd oscil\u00e1tor. Jsou ide\u00e1ln\u00ed pro detekci kovov\u00fdch p\u0159edm\u011bt\u016f na kr\u00e1tkou vzd\u00e1lenost.<\/li>\n
    2. Dvouf\u00e1zov\u00e9<\/span> – maj\u00ed dva oscil\u00e1tory, kter\u00e9 generuj\u00ed magnetick\u00e1 pole opa\u010dn\u00fdch f\u00e1z\u00ed. Takov\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed umo\u017e\u0148uje p\u0159esnou detekci kov\u016f i na v\u011bt\u0161\u00ed vzd\u00e1lenosti.<\/li>\n
    3. Analogov\u00e9<\/span> – na rozd\u00edl od typick\u00fdch induk\u010dn\u00edch senzor\u016f, kter\u00e9 generuj\u00ed bin\u00e1rn\u00ed sign\u00e1l (detekov\u00e1no\/nedetekov\u00e1no), analogov\u00e9 senzory generuj\u00ed sign\u00e1l \u00fam\u011brn\u00fd vzd\u00e1lenosti od detekovan\u00e9ho objektu.<\/li>\n<\/ol>\n

      V\u00fdb\u011br spr\u00e1vn\u00e9ho typu induk\u010dn\u00edho sn\u00edma\u010de z\u00e1vis\u00ed na konkr\u00e9tn\u00ed aplikaci a rozmanitost model\u016f dostupn\u00fdch na trhu umo\u017e\u0148uje p\u0159esn\u00e9 p\u0159izp\u016fsoben\u00ed po\u017eadavk\u016fm ka\u017ed\u00e9 \u00falohy.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      Prozkoumejte p\u0159\u00edklady pou\u017eit\u00ed induk\u010dn\u00edch sn\u00edma\u010d\u016f v praxi<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Induk\u010dn\u00ed sn\u00edma\u010de jsou v na\u0161em ka\u017edodenn\u00edm \u017eivot\u011b v\u0161udyp\u0159\u00edtomn\u00e9, i kdy\u017e si to \u010dasto neuv\u011bdomujeme. Jsou kl\u00ed\u010dovou sou\u010d\u00e1st\u00ed mnoha syst\u00e9m\u016f – od pokro\u010dil\u00fdch pr\u016fmyslov\u00fdch proces\u016f a\u017e po b\u011b\u017en\u00e9 dom\u00e1c\u00ed spot\u0159ebi\u010de. Poj\u010fme tedy prozkoumat mo\u017enosti t\u011bchto mimo\u0159\u00e1dn\u011b u\u017eite\u010dn\u00fdch za\u0159\u00edzen\u00ed.<\/p>\n

      P\u0159\u00edklady pr\u016fmyslov\u00fdch aplikac\u00ed induk\u010dn\u00edch sn\u00edmac\u00edch za\u0159\u00edzen\u00ed<\/h3>\n
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      1. Hutnick\u00fd pr\u016fmysl <\/span>– induk\u010dn\u00ed sn\u00edma\u010de se pou\u017e\u00edvaj\u00ed k detekci p\u0159\u00edtomnosti a polohy kovov\u00fdch surovin, kter\u00e9 se tepeln\u011b zpracov\u00e1vaj\u00ed v pec\u00edch.<\/li>\n
      2. Pr\u016fmyslov\u00e1 automatizace<\/span> – Induk\u010dn\u00ed sn\u00edma\u010de se pou\u017e\u00edvaj\u00ed k monitorov\u00e1n\u00ed p\u0159\u00edtomnosti a polohy p\u0159edm\u011bt\u016f na dopravn\u00edch p\u00e1sech, \u010d\u00edm\u017e zaji\u0161\u0165uj\u00ed spr\u00e1vn\u00fd pr\u016fb\u011bh v\u00fdrobn\u00edch proces\u016f.<\/li>\n
      3. Automobilov\u00fd pr\u016fmysl<\/span> – induk\u010dn\u00ed sn\u00edma\u010de se pou\u017e\u00edvaj\u00ed k m\u011b\u0159en\u00ed ot\u00e1\u010dek klikov\u00fdch h\u0159\u00eddel\u00ed v motorech nebo ke sledov\u00e1n\u00ed polohy sou\u010d\u00e1st\u00ed v \u0159\u00eddic\u00edch syst\u00e9mech.<\/li>\n
      4. V\u00fdroba elektroniky<\/span> – Induk\u010dn\u00ed sn\u00edma\u010de se pou\u017e\u00edvaj\u00ed ve stroj\u00edch pro mont\u00e1\u017e integrovan\u00fdch obvod\u016f, kde kontroluj\u00ed spr\u00e1vn\u00e9 um\u00edst\u011bn\u00ed sou\u010d\u00e1stek.<\/li>\n<\/ol>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        P\u0159\u00edklady pou\u017eit\u00ed induk\u010dn\u00edch sn\u00edma\u010d\u016f v ka\u017edodenn\u00edm \u017eivot\u011b<\/h3>\n
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        1. Spot\u0159ebn\u00ed elektronika<\/span> – Induk\u010dn\u00ed sn\u00edma\u010de se pou\u017e\u00edvaj\u00ed v induk\u010dn\u00edch varn\u00fdch desk\u00e1ch k detekci p\u0159\u00edtomnosti n\u00e1dob\u00ed a nastaven\u00ed \u00farovn\u011b oh\u0159evu.<\/li>\n
        2. Popla\u0161n\u00e9 syst\u00e9my<\/span> – Induk\u010dn\u00ed sn\u00edma\u010de se pou\u017e\u00edvaj\u00ed v n\u011bkter\u00fdch bezpe\u010dnostn\u00edch syst\u00e9mech, kde detekuj\u00ed pokus o vniknut\u00ed p\u0159es kovov\u00e9 dve\u0159e nebo okna.<\/li>\n
        3. Hodinky a smartphony<\/span> – n\u011bkter\u00e1 modern\u00ed elektronick\u00e1 za\u0159\u00edzen\u00ed pou\u017e\u00edvaj\u00ed induk\u010dn\u00ed sn\u00edma\u010de k bezdr\u00e1tov\u00e9mu nab\u00edjen\u00ed bateri\u00ed.<\/li>\n<\/ol>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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          Jak vid\u00edte, induk\u010dn\u00ed senzory jsou velmi u\u017eite\u010dn\u00e1 za\u0159\u00edzen\u00ed, kter\u00e1 nach\u00e1zej\u00ed uplatn\u011bn\u00ed v mnoha oblastech. Uv\u011bdomili jste si, \u017ee s nimi mus\u00edte tak \u010dasto jednat?<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

          Induk\u010dn\u00ed sn\u00edma\u010d hraje i p\u0159es sv\u00e9 mal\u00e9 rozm\u011bry v technologick\u00e9m sv\u011bt\u011b kl\u00ed\u010dovou roli. D\u00edky bezkontaktn\u00ed detekci kovov\u00fdch p\u0159edm\u011bt\u016f je nepostradateln\u00fd nejen v automatizaci. P\u0159e\u010dt\u011bte si tento \u010dl\u00e1nek a seznamte se s konstruk\u010dn\u00edm sch\u00e9matem, principem fungov\u00e1n\u00ed a p\u0159\u00edklady praktick\u00e9ho vyu\u017eit\u00ed tohoto pozoruhodn\u00e9ho za\u0159\u00edzen\u00ed!<\/p>\n","protected":false},"author":21,"featured_media":68757,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[548,549,560],"tags":[],"class_list":["post-69122","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika-cs","category-kompendium-cs","category-poradenstvi"],"acf":[],"yoast_head":"\nInduk\u010dn\u00ed sn\u00edma\u010d - Co je to a k \u010demu se pou\u017e\u00edv\u00e1? - Botland<\/title>\n<meta name=\"description\" content=\"Induk\u010dn\u00ed sn\u00edma\u010de - seznamte se s jejich konstrukc\u00ed, principem fungov\u00e1n\u00ed a praktick\u00fdm vyu\u017eit\u00edm v pr\u016fmyslu i ka\u017edodenn\u00edm \u017eivot\u011b. 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