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	<title>simonk&#039;s blog</title>
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	<description>Fotografije od vsepovsod.</description>
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		<title>Regulacija gretja in izvedba grelca za finder 8&#215;50</title>
		<link>http://www.simonk.net/blog/?p=414</link>
		<comments>http://www.simonk.net/blog/?p=414#comments</comments>
		<pubDate>Fri, 23 Jul 2010 12:03:46 +0000</pubDate>
		<dc:creator>simonk</dc:creator>
				<category><![CDATA[Elektronika]]></category>

		<guid isPermaLink="false">http://www.simonk.net/blog/?p=414</guid>
		<description><![CDATA[Za guiding teleskopa imam iskalo 8&#215;50 (v nadaljevanju guidefinder) predelano tako, da dobim fokus tudi s web-kamero Philips Vesta. Kljub temu, da ponavadi nimam težav z rosenjem, se občasno pojavijo tudi te težave, sploh v poletnih in jesenskih mesecih. Zato sem se odločil narediti čim bolj efektiven grelec z nastavljivo regulacije gretja (dejansko gre za [...]]]></description>
			<content:encoded><![CDATA[<p>Za guiding teleskopa imam iskalo 8&#215;50 (v nadaljevanju guidefinder) predelano tako, da dobim fokus tudi s web-kamero Philips Vesta. Kljub temu, da ponavadi nimam težav z rosenjem, se občasno pojavijo tudi te težave, sploh v poletnih in jesenskih mesecih. Zato sem se odločil narediti čim bolj efektiven grelec z nastavljivo regulacije gretja (dejansko gre za 2-položajni regulator (VKLOP-IZKLOP)). </p>
<p>Izveden je tako, da potrebujemo 2 temperaturna senzorja (KTY). Prvi daje referenčno temperaturo okolice, drugi pa meri temperaturo ogrevane površine. Regulacija je izvedena s primerjanjem teh dveh temperatur, pri čemer je možno ročno nastavljati dodatek k okoliški temperaturi (s potenciometrom). </p>
<p>Kot je razvidno iz sheme &#8211; je uporaba vezja možna za dva takšna grelca, ki sta medsebojno povsem neodvisno regulirana.</p>
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<p>Med X1-1 in X1-2 se priklopi prvi grelec, med X3-1 in X3-2 temperaturni senzor ogrevane površine, med X3-1 in X3-3 pa temperaturni senzor okoliške temprerature. Pomembno je, da sta senzorja nameščena tako, da je podatek o izmerjeni temperaturi čim bolj točen. Ekvivalentno je tudi na spodnjem delu sheme za drugi grelec.</p>
<p><a href="http://www.simonk.net/blog/?attachment_id=417" rel="attachment wp-att-417"><img src="http://www.simonk.net/blog/wp-content/uploads/2010/07/Untitled-2.gif" alt="" title="Untitled-2" width="320" height="374" class="aligncenter size-full wp-image-417" /></a></p>
<p>Samo vezje je zaradi želene majhnosti večinoma izvedeno s SMD komponentami, ki so za uporabo nekoliko zahtevnejše. Kljub temu pa je izvedljivo tudi v domači delavnici.</p>
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Ohišje 8&#215;4x2cm s konektorjem za napajanje in stikalom za vklop/izklop</center><br />
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<p>Sam grelec ima moč približno 4W (ob priklopu na 12V), izveden je s pomočjo 15ih 620 ohmskih 1/4W uporov, ki so prilotani med dve vzporedni žici. Tako se vsak posamezen upor lepo greje, ob enem pa moč ni prevelika.</p>
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		<item>
		<title>Živalice</title>
		<link>http://www.simonk.net/blog/?p=403</link>
		<comments>http://www.simonk.net/blog/?p=403#comments</comments>
		<pubDate>Mon, 19 Jul 2010 10:00:12 +0000</pubDate>
		<dc:creator>simonk</dc:creator>
				<category><![CDATA[Narava]]></category>
		<category><![CDATA[Živali]]></category>

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		<description><![CDATA[Fotogenična kobilica na travnati bilki&#8230;


			     
                 
								
			       		
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				Kobilica 1
	
			    


Kobilica 1
Ista kobilica iz drugega [...]]]></description>
			<content:encoded><![CDATA[<p>Fotogenična kobilica na travnati bilki&#8230;<br />
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Kobilica 1</center></p>
<p>Ista kobilica iz drugega profila<br />
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Kobilica 1 (drugič)</center></p>
<p>Jesenov škržat (Cicada orni)<br />
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<p>Jesenov škržat (Cicada orni) drugič<br />
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Jesenov škržat (Cicada orni)</center></p>
<p>Še ena zanimiva živalca&#8230;<br />
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</center></p>
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		<title>8. Škoda rally Maribor 2010</title>
		<link>http://www.simonk.net/blog/?p=383</link>
		<comments>http://www.simonk.net/blog/?p=383#comments</comments>
		<pubDate>Sun, 04 Jul 2010 11:51:41 +0000</pubDate>
		<dc:creator>simonk</dc:creator>
				<category><![CDATA[Šport]]></category>

		<guid isPermaLink="false">http://www.simonk.net/blog/?p=383</guid>
		<description><![CDATA[Nekaj utrinkov iz zelo zanimivega in razburljivega rally-a v Mariboru. Slike so bile posnete 3. 7., na hitrostnih preizkušnjah Meljski hrib (HP2 in HP4), Gaj (HP6 in HP8) ter nekaj malega iz servisne cone&#8230;


			     
                 [...]]]></description>
			<content:encoded><![CDATA[<p>Nekaj utrinkov iz zelo zanimivega in razburljivega rally-a v Mariboru. Slike so bile posnete 3. 7., na hitrostnih preizkušnjah Meljski hrib (HP2 in HP4), Gaj (HP6 in HP8) ter nekaj malega iz servisne cone&#8230;</p>
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Zmagovalec rallya &#8211; Baumschlager</center></p>
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Gassner</center></p>
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Zitta</center></p>
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Jagarinec</center></p>
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Vusić</center></p>
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Neubauer</center></p>
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Stengg</center></p>
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Turk</center></p>
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Čakalna vrsta v servisni coni</center></p>
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Zitta na startu predzadnje preizkušnje</center></p>
<p>Še več slik v dveh galerijah:<br />
<a target="_blank" href="/blog/wp-content/photos/rally_MB_2010_1/index.html">Dopoldan (HP2 in HP4)</a><br />
<a target="_blank" href="/blog/wp-content/photos/rally_MB_2010_2/index.html">Popoldan (HP2 in HP4) + servisna cona</a></p>
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		<title>KAF 0402 CCD</title>
		<link>http://www.simonk.net/blog/?p=366</link>
		<comments>http://www.simonk.net/blog/?p=366#comments</comments>
		<pubDate>Fri, 11 Jun 2010 09:06:31 +0000</pubDate>
		<dc:creator>simonk</dc:creator>
				<category><![CDATA[Elektronika]]></category>

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		<description><![CDATA[Pogled od blizu&#8230;


			     
                 
								
			       		
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				CCD
	
			    


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			<content:encoded><![CDATA[<p>Pogled od blizu&#8230;<br />
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		<title>Dve muhi</title>
		<link>http://www.simonk.net/blog/?p=356</link>
		<comments>http://www.simonk.net/blog/?p=356#comments</comments>
		<pubDate>Sun, 23 May 2010 10:35:47 +0000</pubDate>
		<dc:creator>simonk</dc:creator>
				<category><![CDATA[Živali]]></category>

		<guid isPermaLink="false">http://www.simonk.net/blog/?p=356</guid>
		<description><![CDATA[Od kar sem nabavil close-up ring, sem kar navdušen nad makro fotografijo&#8230; Treba bo le neko osvetlitev zrihtat &#8211; verjetno z LED diodami, potem pa bo še bolje, no, vsaj upam.


			     
                 
								
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			<content:encoded><![CDATA[<p>Od kar sem nabavil close-up ring, sem kar navdušen nad makro fotografijo&#8230; Treba bo le neko osvetlitev zrihtat &#8211; verjetno z LED diodami, potem pa bo še bolje, no, vsaj upam.<br />
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Muha 1</center><br />
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				<div style="clear:both">Muha 1</div>
	
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Muha 2</center></p>
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