{"id":5330,"date":"2024-04-07T21:01:42","date_gmt":"2024-04-07T19:01:42","guid":{"rendered":"https:\/\/w2.mwtc.tech\/?p=5330"},"modified":"2024-11-08T18:59:44","modified_gmt":"2024-11-08T17:59:44","slug":"osciloskope","status":"publish","type":"post","link":"https:\/\/www.mwtc.tech\/index.php\/2024\/04\/07\/osciloskope\/","title":{"rendered":"Tablet Oscilloscope"},"content":{"rendered":"

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\u010c\u00ednsky v\u00fdrobok, ktor\u00fd sa hrd\u00ed na obale frekvenciou 100MHz a samplovacou frekvenciou 1GSa\/s, z hornej strany displeja ma dva BNC konektory, v\u00fdstup pravouhl\u00e9ho sign\u00e1lu 1kHz, dve LED – zelen\u00e1 Over a \u010derven\u00e1 Power, C usb konektor a tla\u010didlov\u00fd vyp\u00edna\u010d. Osciloskop sk\u00f4r p\u00f4sob\u00ed ako hra\u010dka pre zanieten\u00fdch rozobera\u010dov hardv\u00e9ru alebo inzitn\u00fdch elektrik\u00e1rov.<\/p>\n<\/div>

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Osciloskop je pomerne \u0165a\u017ek\u00fd, ak \u010dlovek o\u010dak\u00e1va pr\u00e1zdny cover. Po zapnut\u00ed a prvopo\u010diato\u010dn\u00fdch o\u0148uch\u00e1vaniach sa navz\u00e1jom, kon\u0161tatujem, celkom neintuit\u00edvne ovl\u00e1danie, kde u\u017e\u00edvate\u013e m\u00e1rne stl\u00e1\u010da ikonku \u010dasovej z\u00e1kladne, alebo ikonku vstupn\u00e9ho nap\u00e4\u0165ov\u00e9ho deli\u010da a ni\u010d sa nedeje. Ete, \u017ee je tam ikona auto set<\/b>. <\/strong>Z\u00e1zra\u010dn\u00e1 to ikona pre \u0161tudentov a za\u010diato\u010dn\u00edkov. Po pripojen\u00ed sign\u00e1lu a zatla\u010den\u00ed ikony osciloskop osciloskopuje. Po dlh\u0161om zoznamovan\u00ed a nedajbo\u017ee pre\u010d\u00edtan\u00ed si manu\u00e1lu zist\u00edme, \u017ee \u010dasov\u00e1 z\u00e1klad\u0148a sa prep\u00edna dvojit\u00fdm poklepom na obrazovku. Ak poklepeme vpravo r\u00fdchlos\u0165 \u010dasovej z\u00e1kladne sa zvy\u0161uje, ak v\u013eavo zni\u017euje. Vstupn\u00fd nap\u00e4\u0165ov\u00fd deli\u010d sa v\u0161ak nepodarilo udvajklika\u0165, ani, keby sme si z prstu urobili plutvu. Ide to v\u0161ak in\u00fdm sp\u00f4sobom. Po zatla\u010den\u00ed ikonky CTRL<\/b>, sa menu prepne do stavu CH1<\/b> a CH2<\/b> s intuit\u00edvnym V+<\/b><\/strong> a V-<\/b>. Ide a prep\u00edna, v\u00fdborn\u00e1 spr\u00e1va. V\u00e4zba vstupu a vlastnosti vstupu sa daj\u00fa prep\u00edna\u0165 intuit\u00edvne cez ikony na hornom okraji obrazovky CH1 a CH2 (toto s\u00fa in\u00e9, ne\u017e o ktor\u00fdch som pred chv\u00ed\u013eou p\u00edsal). Trochu netradi\u010dn\u00e9 menu, ale d\u00e1 sa v \u0148om vyzna\u0165. Osciloskop obsahuje aj tak\u00e9 fi\u010dury ako horizont\u00e1lne a vertik\u00e1lne kurzory, ktor\u00e1 sa daj\u00fa pos\u00fava\u0165 posunut\u00edm prstu po obrazovke (treba si v\u0161ak na to zvykn\u00fa\u0165 ide to inak ne\u017e prst)., pri\u010dom, dok\u00e1\u017eu mera\u0165 Delta V alebo Delta t. \u010co je v\u0161ak ve\u013emi vhodn\u00e1 fi\u010dura, je ikonka MEAS URES, umo\u017e\u0148uj\u00faca mera\u0165 Vmax, Vmin, Vpp, Vp, Vrms, Vavg, Freq, Cycle, Tim+, Tim-, Duty+, Duty- pre ka\u017ed\u00fa kan\u00e1l (ak som nespomenul, m\u00e1 ich dva).<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Zvedavos\u0165 mi nedala a tak som zmeral Amplit\u00fadov\u00fa frekven\u010dn\u00fa charakteristiku osciloskopu. Porovn\u00e1val som ju s profesion\u00e1lnym digit\u00e1lnym osciloskopom TEKTRONIX. V\u00fdsledky s\u00fa na predch\u00e1dzaj\u00facich obr\u00e1zkoch, pri\u010dom pri meran\u00ed sa mi ten \u010d\u00ednsky osciloskop zdal vo v\u00fdsledku stabilnej\u0161\u00ed ne\u017e Tektronix. Pou\u017eit\u00fd gener\u00e1tor bol do 60 MHz, ale pri tejto frekvencii, u\u017e d\u00fdchal z posledn\u00e9ho, zmen\u0161ovala sa mu amplit\u00fada v\u00fdstupn\u00e9ho sign\u00e1lu, \u010do je zachyten\u00e9 aj na predch\u00e1dzaj\u00facich obr\u00e1zkoch. \u010cerven\u00e1 krivka Tektronix a zelen\u00e1 Table osc. Na Table osc. uz tie\u017e vidie\u0165 pokles AFCH.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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\u010co sa t\u00fdka amplit\u00fadovej charakteristiky, Table osc. za\u010dal zobrazova\u0165 sign\u00e1l a\u017e od 30 mV, pri ni\u017e\u0161\u00edch hodnot\u00e1ch sign\u00e1lu sa tv\u00e1ril, \u017ee na vstupe ni\u010d nem\u00e1. T\u00e1to charakteristika bola nameran\u00e1 pri frekvencii vstupn\u00e9ho sign\u00e1lu 1kHz a tvare – s\u00ednus. Pri desiatkach mV chyba amplit\u00fady cca -10%. Pri stovk\u00e1ch cca -5% a\u017e 0%. V\u00fdsledok v skutku zauj\u00edmav\u00fd.<\/p>\n

Pri meran\u00ed n\u00e1be\u017enej a dobe\u017enej hrany sa prejavila hrani\u010dn\u00e1 frekvencia osciloskopu. R\u00fdchle hrany: Tekronix 8.2 ns, Table osc. 24 ns. Pomal\u00e9 hrany: Tektronix 164 us, Table osc. 166 us.<\/p>\n

Z\u00e1ver:<\/h4>\n

Osciloskop Table osc. pr\u00edjemne prekvapil.<\/p>\n

Pozn\u00e1mka:<\/h4>\n

Nesk\u00fa\u0161al som pripojenie ku po\u010d\u00edta\u010du a prenos d\u00e1t, ale aj k tomu raz d\u00f4jde.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"

Sk\u00fasenosti z \u010c\u00ednskym prenosn\u00fdm osciloskopom.<\/p>\n","protected":false},"author":1,"featured_media":5725,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-5330","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meracia-technika"],"_links":{"self":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/posts\/5330","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/comments?post=5330"}],"version-history":[{"count":6,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/posts\/5330\/revisions"}],"predecessor-version":[{"id":5615,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/posts\/5330\/revisions\/5615"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/media\/5725"}],"wp:attachment":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/media?parent=5330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/categories?post=5330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/tags?post=5330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}