{"id":14200,"date":"2023-09-25T02:21:10","date_gmt":"2023-09-25T02:21:10","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=14200"},"modified":"2023-12-26T08:45:20","modified_gmt":"2023-12-26T08:45:20","slug":"what-is-cathode","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/cs\/glosar\/co-je-katoda","title":{"rendered":"Co je katoda"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-cathode\">Co je katoda<\/h2><p>Katoda je z\u00e1porn\u011b nabit\u00e1 elektroda ve v\u00fdbojce nebo elektrick\u00e9m za\u0159\u00edzen\u00ed. Katoda je zodpov\u011bdn\u00e1 za vyza\u0159ov\u00e1n\u00ed elektron\u016f a usnad\u0148uje tok elektrick\u00e9ho proudu v za\u0159\u00edzen\u00ed.<\/p><div class=\"insert_inquiry_outer_wrapper\"><h3>Hled\u00e1te \u0159e\u0161en\u00ed \u00faspory energie aktivovan\u00e9 pohybem?<\/h3><p>Obra\u0165te se na n\u00e1s pro kompletn\u00ed PIR senzory pohybu, produkty pro \u00fasporu energie aktivovan\u00e9 pohybem, sp\u00edna\u010de se senzorem pohybu a komer\u010dn\u00ed \u0159e\u0161en\u00ed pro detekci p\u0159\u00edtomnosti\/volnosti.<\/p><div class = \"insert_inquiry_buttons\"><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email\"><div><a href = \"mailto:info@rayzeek.com\"><p>Odeslat e-mail<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email_contact\"><div><a href=\"https:\/\/www.rayzeek.com\/cs\/kontakt\"><p>Kontaktn\u00ed formul\u00e1\u0159<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_chat chat_jump\"><div><a href=\"#\"><p>Chat Online<\/p><\/a><\/div><\/div><\/div><\/div><p>U v\u00fdbojek, jako jsou neonov\u00e9 v\u00fdbojky, je katoda nezbytn\u00e1 pro v\u00fdrobu sv\u011btla jako indik\u00e1toru nebo pro specializovan\u00e9 osv\u011btlovac\u00ed \u00fa\u010dely. Vyu\u017e\u00edv\u00e1 se tak\u00e9 ve sp\u00ednac\u00edch trubic\u00edch se studenou katodou, kde iniciuje a udr\u017euje \u017ehav\u00fd v\u00fdboj nezbytn\u00fd pro specifick\u00e9 funkce, jako je sp\u00edn\u00e1n\u00ed a po\u010d\u00edt\u00e1n\u00ed. Krom\u011b toho se elektronky s regul\u00e1torem nap\u011bt\u00ed spol\u00e9haj\u00ed na relativn\u011b konstantn\u00ed nap\u011bt\u00ed generovan\u00e9 \u017ehavic\u00edm v\u00fdbojem katody, aby stabilizovaly nap\u00e1jec\u00ed nap\u011bt\u00ed v p\u0159\u00edstroj\u00edch zalo\u017een\u00fdch na elektronk\u00e1ch.<\/p><p>Katoda je kl\u00ed\u010dovou sou\u010d\u00e1st\u00ed i dal\u0161\u00edch za\u0159\u00edzen\u00ed, v\u010detn\u011b dekatron\u016f pou\u017e\u00edvan\u00fdch k po\u010d\u00edt\u00e1n\u00ed, z\u00e1bleskov\u00fdch trubic pro intenzivn\u00ed kr\u00e1tk\u00e9 sv\u011bteln\u00e9 impulsy a katodov\u00fdch trubic pou\u017e\u00edvan\u00fdch v r\u016fzn\u00fdch zobrazovac\u00edch aplikac\u00edch. Je d\u016fle\u017eit\u00e9 poznamenat, \u017ee katoda nevy\u017eaduje pro emisi elektron\u016f vn\u011bj\u0161\u00ed oh\u0159ev, \u010d\u00edm\u017e se li\u0161\u00ed od hork\u00e9 katody.<\/p><div class=\"insert_portfolio_outer_wrapper\"><h3>Inspirujte se portfoliem pohybov\u00fdch senzor\u016f Rayzeek.<\/h3><p>Nena\u0161li jste to, co jste cht\u011bli? Nebojte se. V\u017edy existuj\u00ed alternativn\u00ed zp\u016fsoby \u0159e\u0161en\u00ed va\u0161ich probl\u00e9m\u016f. Mo\u017en\u00e1 v\u00e1m pom\u016f\u017ee n\u011bkter\u00e9 z na\u0161ich portfoli\u00ed.<\/p><div class = \"insert_portfolio_buttons\"><div class = \"insert_portfolio_button_wrapper\"><div><a href = \"https:\/\/www.rayzeek.com\/cs\/kategorie-produktu\/snimace-pohybu\"><p>Senzory pohybu PIR<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/cs\/spinace-se-snimacem-pohybu\"><p>Sp\u00edna\u010de s pohybov\u00fdm senzorem<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/cs\/occupancy-vacancy-sensors\"><p>Senzory p\u0159\u00edtomnosti<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/cs\/produkty\/rz050\"><p>Senzor pohybu klimatizace<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/cs\/kategorie-produktu\/motion-sensor-light-strip\"><p>Sv\u011bteln\u00e9 p\u00e1sky s pohybov\u00fdm senzorem<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/cs\/kategorie-produktu\/stejnosmerny-senzorovy-stmivac\"><p>N\u00edzkonap\u011b\u0165ov\u00e9 stejnosm\u011brn\u00e9 sn\u00edma\u010de pohybu\/stm\u00edva\u010de<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/cs\/kategorie-produktu\/bezdratove-senzory-pohybu\"><p>Sady bezdr\u00e1tov\u00fdch sn\u00edma\u010d\u016f pohybu<\/p><\/a><\/div><\/div><\/div><\/div><div class=\"wp-block-group glossary_faqs\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading\" id=\"h-frequently-asked-questions\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-how-do-you-tell-if-it-s-a-cathode-or-anode\">Jak pozn\u00e1te, zda se jedn\u00e1 o katodu nebo anodu?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Katodu a anodu lze rozli\u0161it na z\u00e1klad\u011b jejich potenci\u00e1lu. Elektroda s vy\u0161\u0161\u00edm potenci\u00e1lem je kladn\u00e1 elektroda. P\u0159i vyb\u00edjen\u00ed baterie funguje kladn\u00e1 elektroda jako katoda, zat\u00edmco z\u00e1porn\u00e1 elektroda jako anoda. Naopak p\u0159i nab\u00edjen\u00ed funguje kladn\u00e1 elektroda jako anoda a z\u00e1porn\u00e1 elektroda jako katoda.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-is-the-voltage-of-a-cold-cathode-lamp\">Jak\u00e9 je nap\u011bt\u00ed lampy se studenou katodou<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>V\u011bt\u0161ina obvod\u016f z\u00e1\u0159ivek se studenou katodou (CCFL) obvykle pot\u0159ebuje vstupn\u00ed nap\u011bt\u00ed v rozmez\u00ed od 5 V do 30 V. Tyto obvody jsou navr\u017eeny tak, aby nejl\u00e9pe pracovaly s proudem \u017e\u00e1rovky 5mA nebo vy\u0161\u0161\u00edm. Proto nejsou vhodn\u00e9 pro provoz s ni\u017e\u0161\u00edm v\u00fdkonem pomoc\u00ed dvou- nebo t\u0159\u00ed\u010dl\u00e1nkov\u00fdch bateri\u00ed, kter\u00e9 se b\u011b\u017en\u011b vyskytuj\u00ed v kapesn\u00edch po\u010d\u00edta\u010d\u00edch a p\u0159enosn\u00fdch za\u0159\u00edzen\u00edch.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-is-a-cathode-positive-or-negative\">Je katoda kladn\u00e1 nebo z\u00e1porn\u00e1?<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Katody jsou pojmenov\u00e1ny podle kationt\u016f, co\u017e jsou kladn\u011b nabit\u00e9 ionty, zat\u00edmco anody podle aniont\u016f, co\u017e jsou z\u00e1porn\u011b nabit\u00e9 ionty. V elektrick\u00e9m za\u0159\u00edzen\u00ed je katoda elektrodou, kter\u00e1 nese z\u00e1porn\u00fd n\u00e1boj.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-are-fluorescent-lights-cold-cathode\">Jsou z\u00e1\u0159ivky se studenou katodou<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>V\u00fdbojky se studenou katodou, jako jsou z\u00e1\u0159ivky se studenou katodou (CCFL) a neonov\u00e9 v\u00fdbojky, pat\u0159\u00ed do kategorie v\u00fdbojek se studenou katodou. Neonov\u00e9 v\u00fdbojky vyza\u0159uj\u00ed sv\u011btlo excitac\u00ed molekul plynu, zat\u00edmco CCFL vytv\u00e1\u0159ej\u00ed ultrafialov\u00e9 sv\u011btlo prost\u0159ednictv\u00edm v\u00fdboje ve rtu\u0165ov\u00fdch par\u00e1ch, kter\u00fd n\u00e1sledn\u011b vyvol\u00e1 emisi viditeln\u00e9ho sv\u011btla z fluorescen\u010dn\u00edho povlaku uvnit\u0159 v\u00fdbojky.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-is-an-example-of-a-hot-cathode-lamp\">Co je p\u0159\u00edkladem lampy s horkou katodou<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>V\u00fdbojky se studenou katodou, jako jsou neonov\u00e9 lampy, neonov\u00e9 n\u00e1pisy a sod\u00edkov\u00e9 v\u00fdbojky, jsou p\u0159\u00edklady v\u00fdbojek s horkou katodou. Krom\u011b toho mezi lampy s horkou katodou pat\u0159\u00ed st\u0159edotlak\u00e9 rtu\u0165ov\u00e9 v\u00fdbojky a n\u00edzkotlak\u00e9 rtu\u0165ov\u00e9 v\u00fdbojky, jako jsou z\u00e1\u0159ivky.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Katoda je z\u00e1porn\u011b nabit\u00e1 elektroda v plynov\u00e9 v\u00fdbojce nebo elektrick\u00e9m za\u0159\u00edzen\u00ed. Katoda je zodpov\u011bdn\u00e1 za emisi elektron\u016f a usnadn\u011bn\u00ed toku elektrick\u00e9ho proudu uvnit\u0159 za\u0159\u00edzen\u00ed.Looking For Motion-Activat<\/p>","protected":false},"author":4,"featured_media":12864,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"gas-discharge lamp\", \"idxall\": 0, \"keywordtitlesimi\": 0.8284668922424316, \"keywordslugsimi\": 0.8284668922424316, \"paratitlesimi\": 0.7006882429122925, \"paraslugsimi\": 0.7006882429122925, \"slug\": \"what-is-discharge-lamp\", \"title\": \"What is Discharge Lamp\", \"id\": 12938}, {\"keyword\": \"neon lamps\", \"idxall\": 0, \"keywordtitlesimi\": 0.8084534406661987, \"keywordslugsimi\": 0.8084534406661987, \"paratitlesimi\": 0.6463078856468201, \"paraslugsimi\": 0.6463078856468201, \"slug\": \"what-is-neon-light\", \"title\": \"What is Neon Light\", \"id\": 14046}, {\"keyword\": \"gas-discharge lamps\", \"idxall\": 0, \"keywordtitlesimi\": 0.8010953068733215, \"keywordslugsimi\": 0.8010953068733215, \"paratitlesimi\": 0.6775931119918823, \"paraslugsimi\": 0.6775931119918823, \"slug\": \"what-is-discharge-lamp\", \"title\": \"What is Discharge Lamp\", \"id\": 12938}]","article_topic":"","article_fact_check":"","mt_social_share":"","mt_content_meta":"","mt_glossary_display":"","glossary_heading":"","glossary":"Cathode","glossary_alter":"","glossary_def":"","article_task":"","footnotes":""},"categories":[102],"tags":[99],"class_list":["post-14200","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-glossary"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Cathode - Rayzeek<\/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.rayzeek.com\/cs\/glosar\/co-je-katoda\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Cathode - Rayzeek\" \/>\n<meta property=\"og:description\" content=\"A cathode is a negatively charged electrode in a gas-discharge lamp or electrical device. The cathode is responsible for emitting electrons and facilitating the flow of electrical current within the device.Looking For Motion-Activat\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rayzeek.com\/cs\/glosar\/co-je-katoda\" \/>\n<meta property=\"og:site_name\" content=\"Rayzeek\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/bester001\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/bester001\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-25T02:21:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-26T08:45:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-6.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Horace He\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@RayzeekTech\" \/>\n<meta name=\"twitter:site\" content=\"@RayzeekTech\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"Horace He\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode\"},\"author\":{\"name\":\"Horace He\",\"@id\":\"https:\/\/www.rayzeek.com\/#\/schema\/person\/ff0b4bd6573444e02efc8613274549c4\"},\"headline\":\"What is Cathode\",\"datePublished\":\"2023-09-25T02:21:10+00:00\",\"dateModified\":\"2023-12-26T08:45:20+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode\"},\"wordCount\":444,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.rayzeek.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-6.jpg\",\"keywords\":[\"glossary\"],\"articleSection\":[\"glossary\"],\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode\",\"url\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode\",\"name\":\"What is Cathode - Rayzeek\",\"isPartOf\":{\"@id\":\"https:\/\/www.rayzeek.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-6.jpg\",\"datePublished\":\"2023-09-25T02:21:10+00:00\",\"dateModified\":\"2023-12-26T08:45:20+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#primaryimage\",\"url\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-6.jpg\",\"contentUrl\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-6.jpg\",\"width\":1200,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-cathode#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.rayzeek.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is Cathode\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.rayzeek.com\/#website\",\"url\":\"https:\/\/www.rayzeek.com\/\",\"name\":\"Rayzeek\",\"description\":\"Motion Sensor &amp; 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