{"id":177,"date":"2024-10-30T16:00:07","date_gmt":"2024-10-30T15:00:07","guid":{"rendered":"http:\/\/theme-fusion.com\/avada\/classic\/?p=177"},"modified":"2024-11-03T17:44:39","modified_gmt":"2024-11-03T16:44:39","slug":"dso-tc2","status":"publish","type":"post","link":"https:\/\/www.mwtc.tech\/index.php\/2024\/10\/30\/dso-tc2\/","title":{"rendered":"DSO-TC2"},"content":{"rendered":"
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fNIRSi – nie\u010do medzi osciloskopom a testerom s\u00fa\u010diastok.<\/h2><\/span>
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Op\u00e4\u0165 \u010c\u00ednsky v\u00fdrobok, ktor\u00fd sa na obale nehrd\u00ed ni\u010d\u00edm, asi len t\u00fdm, \u017ee je to digit\u00e1lny osciloskop a tester tranzistorov v jednom. Asi najzauj\u00edmavej\u0161ie \u010do uvid\u00edte pri otvoren\u00ed obalu v\u00fdrobku, je n\u00e1vod na obsluhu, ktor\u00fd okrem Mandar\u00edn\u010diny je nap\u00edsan\u00fd aj v Angli\u010dtine.<\/p>\n

Aby sme sa v tomto texte pohli \u010falej uvediem niektor\u00e9 technick\u00e9 d\u00e1ta z manu\u00e1lu.<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Veli\u010dina<\/th>\nRozsah<\/th>\n<\/tr>\n<\/thead>\n
Frekvencia vzorkovania v re\u00e1lnom \u010dase<\/td>\n2~MS\/s<\/span><\/td>\n<\/tr>\n
Frekven\u010dn\u00fd rozsah<\/td>\n0 - 200 kHz<\/span><\/td>\n<\/tr>\n
Vstupn\u00fd odpor<\/td>\n1~M\\Omega <\/span><\/td>\n<\/tr>\n
Vstupn\u00fd nap\u00e4\u0165ov\u00fd rozsah<\/td>\nsonda 1 : 1 \\;- \\;80 V_{pp} (\\pm 40~V)<\/span><\/td>\n<\/tr>\n
Column 1 Value 5<\/td>\n\u00a0sonda 10 : 1 \\;- \\;800 V_{pp} (\\pm 400~V)<\/span><\/td>\n<\/tr>\n
Vertik\u00e1lny rozsah<\/td>\n 10~mV\/div\\; - \\;10~V\/div<\/span>\n

zmena rozsahu po 1 – 2 – 5<\/td>\n<\/tr>\n

Vertik\u00e1lny posun<\/td>\nmanu\u00e1ne nastavite\u013en\u00fd<\/td>\n<\/tr>\n
\u010casov\u00e1 z\u00e1klad\u0148a<\/td>\n 10~\\mu s\/div~ - ~500~s\/div<\/span>\n

zmena rozsahu po 1 – 2 – 5<\/td>\n<\/tr>\n

Trigger<\/td>\nAut, Norm, Simgle<\/td>\n<\/tr>\n
Trigger – slope<\/td>\nN\u00e1be\u017en\u00e1 a dobe\u017en\u00e1 hrana<\/td>\n<\/tr>\n
Trigger – \u00farove\u0148<\/td>\nmanu\u00e1ne nastavite\u013en\u00e1<\/td>\n<\/tr>\n
Zamrznutie obrazovky<\/td>\n\u00c1no (funkcia HOLD)<\/td>\n<\/tr>\n
Automaticn\u00e9 meranie<\/td>\n\u00a0 U_{MAX},\\; U_{MIN},\\; U_{AVR},\\;\u00a0U_{RMS}, \\; U_{PP}, \\;f, \\;T,\\; Dcyc<\/span><\/td>\n<\/tr>\n
PWM v\u00fdstup<\/td>\n 0\\;-\\;80~kHz, Dcyc:\\;0\\;-\\;100~\\%,U_{AMP}=5~V<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Pri parametroch testera tranzistorov si rad\u0161ej pom\u00f4\u017eem obr\u00e1zkom.<\/p>\n<\/div>

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Pri zapnut\u00ed zariadenia sa na obrazovke objav\u00ed menu spo\u010d\u00edvaj\u00face z dvoch polo\u017eiek: Mos Test<\/strong> a Oscilloscope<\/strong>. \u0160\u00edpkami si vyberieme polo\u017eku a stla\u010d\u00edme tla\u010didlo OK. Ak je t\u00e1to polo\u017eka Mos Test, zariadenie rovno zmeria parametre pripojenej s\u00fa\u010diastky. Ak \u017eiadna nie je pripojen\u00e1 na displeji bude hl\u00e1\u0161ka o nezn\u00e1mej alebo po\u0161kodenej s\u00fa\u010diastke. Ak s\u00fa\u010diastku pripoj\u00edme mus\u00edme stla\u010di\u0165 tla\u010didlo Test aby do\u0161lo k op\u00e4tovn\u00e9mu meraniu. Ak ni\u010d neurob\u00edme, zariadenie sa po \u010dase vypne. Tento m\u00f3d pomerne presne deteguje typ s\u00fa\u010diastky a jej z\u00e1kladn\u00e9 parametre (pri kondenz\u00e1tore dokonca ESR, s\u00edce netu\u0161\u00edm, \u010di to je ESR alebo nejak\u00e1 strata pri nejakej frekvencii). Pri bipol\u00e1rnom tranzistore zariadenie nameria dokonca h_{21E}<\/span>, a v\u0161ak neviem pri akom pracovnom bode. A v\u0161ak t\u00e1to fi\u010dura zariadenia je ve\u013emi u\u017eito\u010dn\u00e1 pri r\u00fdchlom informat\u00edvnom meran\u00ed parametrov pas\u00edvnych \u010di akt\u00edvnych elektronick\u00fdch prvkov. Napr\u00edklad na cvi\u010deniach z elektroniky alebo obvodov je k nezaplateniu (ke\u010f v\u00e1m kurzisti doplet\u00fa s\u00fa\u010diastky, alebo potrebujete r\u00fdchlo n\u00e1js\u0165 vhodn\u00fd tranzistor …). Odpor\u00fa\u010dam si tento m\u00f3d (alebo podobn\u00e9, \u010di u\u017e toto zariadenie) vysk\u00fa\u0161a\u0165.<\/p>\n

DSO-TC2 ako bolo spomenut\u00e9, m\u00e1 aj funkciu oscilloskop. Tuto si vieme navoli\u0165 hne\u0165 v prvom menu. Na displeji sa vykresl\u00ed obrazovka osciloskopu v re\u017eime auto<\/strong>. Tento re\u017eim, \u010d\u00ednski program\u00e1tori pochopili doslovne. V\u0161etko je auto… synchroniz\u00e1cia, Y rozsah, X rozsah aj zapnutie merania z\u00e1kladn\u00fdch parametrov zobrazen\u00e9ho sign\u00e1lu.<\/p>\n<\/div>

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Treba si dobre pozrie\u0165, ako je osciloskop nastaven\u00fd, lebo od toho sa odv\u00edja v\u00fdsledok merania. Moje prv\u00e9 meranie skon\u010dilo fiaskom, d\u00e1ta boli divn\u00e9 charakteristika osciloskopu, nie\u010do sk\u00f4r z kvantovej fyziky, ne\u017e z elektroniky … :D Osciloskop treba nakalibrova\u0165 . Dlh\u00fdm stla\u010den\u00edm tla\u010didla Menu<\/strong> a nepripojen\u00edm sign\u00e1lu na vstup, sa probl\u00e9m s divn\u00fdmi d\u00e1tami vyrie\u0161i – osciloskop sa skalibruje.<\/p>\n

Pri \u010fal\u0161om meran\u00ed u\u017e neodpor\u00fa\u010dam stl\u00e1\u010da\u0165 tla\u010didlo Menu<\/strong>, ale v\u0161etko rie\u0161i\u0165 manu\u00e1lne za pomoci stl\u00e1\u010dania tla\u010didla OK<\/strong> (ka\u017ed\u00fdm stla\u010den\u00edm sa vysvieti in\u00e1 polo\u017eka na displeji, ktor\u00fa m\u00f4\u017eeme manu\u00e1lne nastavi\u0165)\u00a0 a \u0161\u00edpkami. Takto m\u00f4\u017eeme nastavi\u0165 triger<\/em>, slope<\/em>, \u010dasov\u00fa z\u00e1klad\u0148u<\/em>, vstupn\u00fd deli\u010d,<\/em> vstupn\u00fa v\u00e4zbu<\/em> a re\u017eim<\/em> osciloskopu.<\/p>\n

V\u00fdrobca deklaruje pri DC re\u017eime AFCH od 0 do 200kHz. T\u00e1 nula ma celkom zaujala a tak som sa pok\u00fasil zmera\u0165 AFCH pomocou osciloskopu TEKTRONIX od frekvencie 0,01Hz. V\u00fdsledok je na nasleduj\u00facom obr\u00e1zku.<\/p>\n<\/div>

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DSO-TC2 m\u00e1 e\u0161te jednu fi\u010duru a to zdroj obd\u013a\u017enikov\u00e9ho sign\u00e1lu, ktor\u00e9ho striedu m\u00f4\u017eeme manu\u00e1lne meni\u0165 z prostredia osciloskopu., Frekvencia sign\u00e1lu sa d\u00e1 meni\u0165 od 0 kHz po 80 kHz a strieda od 0 po 100 %. V\u0161etky tieto parametre som overil. \u010casovo aj frekvencia aj stried sedeli na 3 desatinn\u00e9 miesta s kalibra\u010dn\u00fdm osciloskopom TEKTRONIX. D\u013a\u017eka n\u00e1be\u017enej a dobe\u017enej hrany impulzu bola 12,4 ns pre v\u0161etk\u00fdch nastaven\u00fdch frekvenci\u00e1ch. Na nasleduj\u00facom obr\u00e1zku je zobrazen\u00fd priebeh dobe\u017enej hrany obd\u013a\u017enikov\u00e9ho impulzu.<\/p>\n<\/div>

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Pri zvy\u0161ovan\u00ed frekvencie gener\u00e1tora obd\u013a\u017enikov\u00e9ho impulzu sa zvy\u0161oval aj prekmit na hran\u00e1ch. Najvy\u0161\u0161\u00ed prekmit bol pri maxim\u00e1lnej frekvencii 80 kHz. Prekmit bol a\u017e do \u00farovne 3 V nad aj pod 5 V impulzom. Pri pou\u017e\u00edvan\u00ed tohto gener\u00e1tora treba by\u0165 opatrn\u00fd aby sme nezni\u010dili obvod na ktor\u00fd budeme impulzy priv\u00e1dza\u0165.<\/p>\n<\/div>

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Z\u00e1ver:<\/p>\n

Zariadenie – hra\u010dka DSO-TC2, ktor\u00fa m\u00f4\u017eem nazva\u0165 ukazov\u00e1tko a testov\u00e1tko, ve\u013emi dobre posl\u00fa\u017ei v nen\u00e1ro\u010dn\u00fdch aplik\u00e1ci\u00e1ch, napr\u00edklad na laborat\u00f3rnych cvi\u010deniach, kde je potrebn\u00e9 skon\u0161truova\u0165 jednoduch\u00fd audio zosil\u0148ova\u010d alebo sp\u00edna\u010d, pr\u00edpadne RC gener\u00e1tor. Parametre, ktor\u00e9 ud\u00e1va v\u00fdrobca s preh\u013eadom sp\u013a\u0148a. Jedin\u00e1 nev\u00fdhoda zariadenia: je \u013eahko odnesite\u013en\u00e9 vo vrecku.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Zas zauj\u00edmav\u00e9 \u010d\u00ednske zariadenie.<\/p>\n","protected":false},"author":1,"featured_media":5518,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[18,21],"class_list":["post-177","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meracia-technika","tag-desk","tag-notebook"],"_links":{"self":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/posts\/177","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=177"}],"version-history":[{"count":34,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/posts\/177\/revisions"}],"predecessor-version":[{"id":5614,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/posts\/177\/revisions\/5614"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/media\/5518"}],"wp:attachment":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/media?parent=177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/categories?post=177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/tags?post=177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}