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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Bude to i pyrotechnickými efekty.</DIV>
<DIV>Aze</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=ZuffaJ@cgc.sk
href="mailto:ZuffaJ@cgc.sk">Zuffa Jan</A> </DIV>
<DIV><B>Sent:</B> Thursday, August 13, 2015 5:17 PM</DIV>
<DIV><B>To:</B> <A title=hw-list@list.hw.cz
href="mailto:hw-list@list.hw.cz">HW-news</A> </DIV>
<DIV><B>Subject:</B> RE: 200W odpor , asi vyroba?</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'>Ale
on ho chce mat v oleji.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'>To
meni situaciu.<o:p></o:p></SPAN></P>
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style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'>j.<o:p></o:p></SPAN></P>
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<P class=MsoNormal><B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: windowtext'>From:</SPAN></B><SPAN
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Hw-list [mailto:hw-list-bounces@list.hw.cz] <B>On Behalf Of </B>Daniel
Valuch<BR><B>Sent:</B> Thursday, August 13, 2015 5:06 PM<BR><B>To:</B>
HW-news<BR><B>Subject:</B> Re: 200W odpor , asi
vyroba?<o:p></o:p></SPAN></P></DIV></DIV>
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<P class=MsoNormal>asi si nerozumieme. Skuste vypocitat aka bude hustota vykonu,
stracajuceho sa z povrchu 40cm dlheho dratu s priemerom 0.1mm (to bolo zadanie).
Bez toho aby bol vyhriaty minimalne do bielo-oranzova to s velkou
pravdepodobnostou nepojde. Udrzat konstantne elektricke vlastnosti uz vobec nie.
Ziarovka...<BR><BR><BR><BR>On 13/08/2015 16:35, <A
href="mailto:cipisek.cipr@seznam.cz">cipisek.cipr@seznam.cz</A>
wrote:<o:p></o:p></P></DIV>
<BLOCKQUOTE style="MARGIN-BOTTOM: 5pt; MARGIN-TOP: 5pt">
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><I>Co jineho je 200W odpor nez
zarovka, mysleno ve smyslu zarizeni jehoz ucelem je vyzarit 200W tepla a
pritom si udrzet konstantni eletricke vlastnosti. Odpor vlakna zarovky se s
teplotou vyrazne meni, Teplotní </I>součinitel odporu manganinu je 1800x
lepší než wolframu. <BR>Nejake ty super odopry jsou sice leptany z folie, ale
tak jako tak to je bud primo manganin nebo jemu podobna slitina Mn+ neco , viz
treba <A
href="http://www.isabellenhuette.de/fileadmin/content/praezisions-leistungswiderstaende/RUG-Z.PDF">http://www.isabellenhuette.de/fileadmin/content/praezisions-leistungswiderstaende/RUG-Z.PDF</A><BR>Tim
ze je to mensi tak stoupa problem s odvodem tepla. <BR>Jediny problem vidim v
parazitni L, Isabellenhuette ma L 10nH.<BR>ja si cvicne zadal do prvni
kalkulacky pro vypocet indukcnosti vzduchve civky <BR><A
href="http://www.radio-foto.eu/radio/civka.php">http://www.radio-foto.eu/radio/civka.php</A><BR>d=6.5mm,
l=150mm, pocet zavitu 20 <BR>a vypadlo na me 113nH <BR>s cimz nemam problem,
ale je to pravda podstatne mene nez vami uvadenych 400nH pro 40cm
dratu.<BR><BR>Ciprian<o:p></o:p></P></BLOCKQUOTE>
<P class=MsoNormal><o:p></o:p> </P></DIV>
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