{"id":70752,"date":"2023-09-02T06:00:31","date_gmt":"2023-09-02T04:00:31","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/czujnik-pt100-co-to-jest-i-do-czego-sluzy\/"},"modified":"2026-04-08T11:07:08","modified_gmt":"2026-04-08T09:07:08","slug":"senzor-pt100-co-je-to-a-k-cemu-se-pouziva","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/senzor-pt100-co-je-to-a-k-cemu-se-pouziva\/","title":{"rendered":"Senzor PT100 – 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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Sn\u00edma\u010d PT100 hraje navzdory sv\u00fdm skromn\u00fdm rozm\u011br\u016fm mimo\u0159\u00e1dn\u011b d\u016fle\u017eitou roli v r\u016fzn\u00fdch oblastech, od potravin\u00e1\u0159sk\u00e9ho pr\u016fmyslu a\u017e po letectv\u00ed. V tomto \u010dl\u00e1nku v\u00e1m \u0159ekneme, co p\u0159esn\u011b to je. Dozv\u00edme se, jak funguje, a uvedeme p\u0159\u00edklady jeho pou\u017eit\u00ed v r\u016fzn\u00fdch situac\u00edch.<\/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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Senzor PT100 - co to je a jak vypad\u00e1?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Senzor PT100<\/strong><\/a> je vysoce p\u0159esn\u00fd termorezistor<\/strong> pou\u017e\u00edvan\u00fd k m\u011b\u0159en\u00ed teploty v \u0161irok\u00e9m rozsahu od -200 do 850 stup\u0148\u016f Celsia<\/strong>. N\u00e1zev PT100 vych\u00e1z\u00ed ze dvou vlastnost\u00ed tohoto p\u0159\u00edstroje: “PT”<\/strong> znamen\u00e1 platinu,<\/strong> kov, z n\u011bho\u017e je sn\u00edma\u010d vyroben, a “100”<\/strong> znamen\u00e1 odpor 100 ohm\u016f p\u0159i 0 stupn\u00edch Celsia<\/strong>. To je standardn\u00ed hodnota pro platinov\u00e9 termorezistory, kter\u00e1 umo\u017e\u0148uje jejich pou\u017eit\u00ed v \u0161irok\u00e9m rozsahu teplot.<\/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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Sn\u00edma\u010d PT100 se skl\u00e1d\u00e1 z tenk\u00e9ho platinov\u00e9ho dr\u00e1tu navinut\u00e9ho na keramick\u00e9 nebo sklen\u011bn\u00e9 struktu\u0159e, kter\u00fd je uzav\u0159en v kovov\u00e9m nebo keramick\u00e9m ochrann\u00e9m pouzd\u0159e<\/strong>. Tento tenk\u00fd dr\u00e1tek je srdcem sn\u00edma\u010de PT100 a jeho odpor se m\u011bn\u00ed s teplotou, co\u017e umo\u017e\u0148uje p\u0159esn\u00e9 m\u011b\u0159en\u00ed.<\/p>\n

Senzory PT100 se dod\u00e1vaj\u00ed v r\u016fzn\u00fdch form\u00e1ch a velikostech, od mal\u00fdch sond zabudovan\u00fdch do kovov\u00fdch trubek a\u017e po v\u011bt\u0161\u00ed modely namontovan\u00e9 v robustn\u00edch pouzdrech, v z\u00e1vislosti na po\u017eadavc\u00edch aplikace. Bez ohledu na jejich podobu z\u016fst\u00e1v\u00e1 jejich princip fungov\u00e1n\u00ed stejn\u00fd.<\/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

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Vysokoteplotn\u00ed m\u011b\u0159ic\u00ed sonda PT100 - 7x200 mm.<\/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\tPOD\u00cdVEJTE SE NA<\/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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Senzor PT100 - na jak\u00e9m principu funguje?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Senzor PT100 pracuje na z\u00e1klad\u011b tepeln\u00e9ho odporu<\/strong>, co\u017e je vlastnost n\u011bkter\u00fdch kov\u016f, v\u010detn\u011b platiny. Tepeln\u00fd odpor znamen\u00e1, \u017ee odpor materi\u00e1lu se m\u011bn\u00ed se zm\u011bnou teploty. U platiny je tato zm\u011bna line\u00e1rn\u00ed a dob\u0159e definovan\u00e1, co\u017e z n\u00ed \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro p\u0159esn\u00e1 m\u011b\u0159en\u00ed teploty.<\/p>\n

Konkr\u00e9tn\u011b v p\u0159\u00edpad\u011b PT100 je odpor 100 ohm\u016f p\u0159i 0 stupn\u00edch Celsia<\/strong>. S rostouc\u00ed teplotou se zvy\u0161uje i odpor sn\u00edma\u010de. Tento n\u00e1r\u016fst je konzistentn\u00ed a p\u0159esn\u00fd, co\u017e umo\u017e\u0148uje p\u0159esn\u00e9 ur\u010den\u00ed teploty na z\u00e1klad\u011b nam\u011b\u0159en\u00e9ho odporu.<\/p>\n

Odpor se m\u011b\u0159\u00ed p\u0159ipojen\u00edm sn\u00edma\u010de k Wheatstonovu m\u016fstku<\/strong>, co\u017e je speci\u00e1ln\u00ed m\u011b\u0159ic\u00ed obvod, kter\u00fd umo\u017e\u0148uje velmi p\u0159esn\u00e9 m\u011b\u0159en\u00ed odporu. Pomoc\u00ed tohoto obvodu lze p\u0159esn\u011b sledovat zm\u011bny odporu \u010didla PT100 a p\u0159ev\u00e1d\u011bt je na \u010diteln\u00e9 hodnoty teploty.<\/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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Postupn\u00e9 ovl\u00e1d\u00e1n\u00ed senzoru PT100<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  1. Funkce platinov\u00e9ho dr\u00e1tu<\/span> – platinov\u00fd dr\u00e1t je srdcem senzoru PT100. P\u0159i zm\u011bn\u011b okoln\u00ed teploty vodi\u010de se m\u011bn\u00ed i jeho odpor, proto\u017ee platina vykazuje tepeln\u00fd odpor.<\/li>\n
  2. Funkce krytu<\/span> – Kryt senzoru slou\u017e\u00ed k ochran\u011b platinov\u00e9ho vodi\u010de p\u0159ed vn\u011bj\u0161\u00edmi vlivy, kter\u00e9 mohou naru\u0161it m\u011b\u0159en\u00ed, jako je vlhkost, tlak nebo mechanick\u00e9 faktory. Zaji\u0161\u0165uje tak\u00e9 mechanickou stabilitu senzoru.<\/li>\n
  3. P\u0159ipojen\u00ed k Wheatstoneovu m\u016fstku<\/span> – platinov\u00fd vodi\u010d je p\u0159ipojen k Wheatstoneovu m\u016fstku, m\u011b\u0159ic\u00edmu obvodu, kter\u00fd dok\u00e1\u017ee p\u0159esn\u011b m\u011b\u0159it zm\u011bnu odporu. M\u016fstek je nap\u00e1jen konstantn\u00edm nap\u011bt\u00edm a zm\u011bnou odporu platinov\u00e9ho vodi\u010de se m\u011bn\u00ed nap\u011bt\u00ed na v\u00fdstupu m\u016fstku.<\/li>\n
  4. P\u0159epo\u010det odporu na hodnotu teploty<\/span> – v\u00fdstupn\u00ed nap\u011bt\u00ed z Wheatstonova m\u016fstku se pot\u00e9 p\u0159evede na hodnotu teploty pomoc\u00ed p\u0159\u00edslu\u0161n\u00fdch p\u0159evodn\u00edch koeficient\u016f, kter\u00e9 zohled\u0148uj\u00ed zn\u00e1m\u00fd vztah mezi teplotou a odporem platiny.<\/li>\n
  5. P\u0159enos v\u00fdsledk\u016f<\/span> – hodnota teploty se p\u0159en\u00e1\u0161\u00ed do \u0159\u00eddic\u00edho nebo monitorovac\u00edho syst\u00e9mu, kde se zaznamen\u00e1v\u00e1, analyzuje a pou\u017e\u00edv\u00e1 k \u0159\u00edzen\u00ed r\u016fzn\u00fdch proces\u016f v z\u00e1vislosti na pou\u017eit\u00ed sn\u00edma\u010de.<\/li>\n<\/ol>\n

    Jak vid\u00edte, fungov\u00e1n\u00ed senzoru PT100 je zalo\u017eeno na pom\u011brn\u011b jednoduch\u00fdch \u0159e\u0161en\u00edch. To v\u0161ak nic nem\u011bn\u00ed na tom, \u017ee je velmi u\u017eite\u010dn\u00e1 a pou\u017e\u00edv\u00e1 se v mnoha r\u016fzn\u00fdch oblastech pr\u016fmyslu i mimo n\u011bj.<\/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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    Senzor PT100 - p\u0159\u00edklady pou\u017eit\u00ed v praxi<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Sn\u00edma\u010d PT100 je v\u0161estrann\u00fd n\u00e1stroj pou\u017e\u00edvan\u00fd v mnoha pr\u016fmyslov\u00fdch odv\u011btv\u00edch a aplikac\u00edch. N\u00ed\u017ee jsou uvedeny n\u011bkter\u00e9 p\u0159\u00edklady aplikac\u00ed senzoru PT100.<\/p>\n

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    1. Potravin\u00e1\u0159sk\u00fd pr\u016fmysl<\/span> – v potravin\u00e1\u0159sk\u00e9m pr\u016fmyslu se senzory PT100 pou\u017e\u00edvaj\u00ed k monitorov\u00e1n\u00ed a kontrole teploty v procesech, jako je pasterizace, va\u0159en\u00ed, pe\u010den\u00ed nebo fermentace. Umo\u017e\u0148uj\u00ed dos\u00e1hnout optim\u00e1ln\u00ed teploty pot\u0159ebn\u00e9 pro zachov\u00e1n\u00ed kvality a bezpe\u010dnosti v\u00fdrobk\u016f.<\/li>\n
    2. Chemick\u00fd a farmaceutick\u00fd pr\u016fmysl<\/span> – regulace teploty m\u00e1 z\u00e1sadn\u00ed v\u00fdznam v chemick\u00fdch a farmaceutick\u00fdch procesech, a to jak v laborato\u0159\u00edch, tak i na \u00farovni \u0161irok\u00e9ho spektra. Senzory PT100 se pou\u017e\u00edvaj\u00ed k monitorov\u00e1n\u00ed teploty v chemick\u00fdch reaktorech, destila\u010dn\u00edch procesech nebo p\u0159i v\u00fdrob\u011b l\u00e9\u010div.<\/li>\n
    3. Energetick\u00fd pr\u016fmysl<\/span> – senzory PT100 se \u010dasto pou\u017e\u00edvaj\u00ed v elektr\u00e1rn\u00e1ch, kde je p\u0159esn\u00e9 m\u011b\u0159en\u00ed teploty nezbytn\u00e9 pro bezpe\u010dn\u00fd a efektivn\u00ed provoz syst\u00e9m\u016f. Lze je pou\u017e\u00edt nap\u0159\u00edklad ke sledov\u00e1n\u00ed teploty v gener\u00e1torech, turb\u00edn\u00e1ch nebo transform\u00e1torech.<\/li>\n
    4. Letectv\u00ed a kosmonautika<\/span> – senzory PT100 lze pou\u017e\u00edt k monitorov\u00e1n\u00ed teploty v leteck\u00fdch motorech, klimatiza\u010dn\u00edch syst\u00e9mech a dokonce i v syst\u00e9mech termoregulace kosmick\u00fdch lod\u00ed.<\/li>\n<\/ol>\n

      Jak vid\u00edte, senzor PT100 je mal\u00e9 za\u0159\u00edzen\u00ed s velk\u00fdmi mo\u017enostmi. Jeho funkce je jednoduch\u00e1, ale v mnoha oblastech je velmi d\u016fle\u017eit\u00fd nebo dokonce nezbytn\u00fd pro spr\u00e1vn\u00fd pr\u016fb\u011bh n\u011bkter\u00fdch proces\u016f.<\/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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      Sn\u00edma\u010d PT100 hraje navzdory sv\u00fdm skromn\u00fdm rozm\u011br\u016fm mimo\u0159\u00e1dn\u011b d\u016fle\u017eitou roli v r\u016fzn\u00fdch oblastech, od potravin\u00e1\u0159sk\u00e9ho pr\u016fmyslu a\u017e po letectv\u00ed. V tomto \u010dl\u00e1nku v\u00e1m \u0159ekneme, co p\u0159esn\u011b to je. Dozv\u00edme se, jak funguje, a uvedeme p\u0159\u00edklady jeho pou\u017eit\u00ed v r\u016fzn\u00fdch situac\u00edch.<\/p>\n","protected":false},"author":22,"featured_media":69002,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[549,557],"tags":[],"class_list":["post-70752","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kompendium-cs","category-zajimavosti"],"acf":[],"yoast_head":"\nSenzor PT100 - co je to a k \u010demu se pou\u017e\u00edv\u00e1? - Botland<\/title>\n<meta name=\"description\" content=\"Seznamte se s \u010didlem PT100 - jak funguje, jak\u00e9 m\u00e1 aplikace a pro\u010d je kl\u00ed\u010dovou sou\u010d\u00e1st\u00ed v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.cz\/blog\/senzor-pt100-co-je-to-a-k-cemu-se-pouziva\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Senzor PT100 - co je to a k \u010demu se pou\u017e\u00edv\u00e1? 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