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    ÖÝñå ÅÓÕ ôçí áëëáãÞ ðïõ èÜ 'èåëåò íá Äåßò
    « #60 : , 26 2006, 23:32:58 »
    ÅíôÜîåé âñÝ ðáéäéÜ ... ìÞí âáñÜôå üëïé ìáæß ...

    Panelpni ... äåßîå åóý ôá ó÷Ýäéá êáé üôé Ý÷åéò öôéÜîåé ãéá íá äïýìå êáé ôï Åëëçíéêüôáôï Äáéìüíéï ...  Wink

    Êþóôá , ãéá ðüóá ÷ñüíéá åßðåò ðùò èá êéíåßóáé áêüìç ìå ÐåôñÝëáéï ?? .. ?? .. ??

    Tangfoglio , ÅíôÜîåé ôï Êüóôïò ôï âãÜæïõìå åêôüò ðñïò ñï Ðáñüí ...

    ÐÜíôùò , ðñïò åíçìÝñùóÞ óáò , ÔåôñáèÝóéï Ý÷åé Þäç ðåôÜîåé Çëåêôñéêü .
    ÕðÜñ÷åé åðßóçò êáé ôï Ãåñìáíéêü Ìïôïáíåìüðôåñï 'Antares' ìå 55 Üëïãá ÌïôÝñ Outrunner êáé Ýëéêá 2 ìÝôñá . Óå 10 ëåðôÜ óå âãÜæåé óôá 3000 ìÝôñá ìå Ëéèßïõ óôïé÷åßá êáé Åðáíáöïñôßæåé óå 8 þñåò ...  Thumbs up
     
    Êáé îÝñù ôïõëÜ÷éóôïí Ýíá ößëï óôçí ÅëëÜäá ðïõ èá ðñïôéìïýóå ôï Çëåêôñéêü óôçí ÐëÜôç ôïõ óôï Ìç÷áíïêßíçôï Parapente ëüãù Èïñýâïõ ...  Wink  ¹ôáí ðñï÷ôÝò óôï åñãáóôÞñéü ìïõ êáé ôá ëÝãáìå ...  Cheesy

     
    « : , 26 2006, 23:37:08 DeltaMan »
    Åðéôõ÷ßá óôç ÆùÞ= ÐÝöôù "í" öïñÝò, Îáíáóçêþíïìáé "í+1" öïñÝò. ÂïÞèá ôïõò ¸ëëçíåò åðáããåëìáôßåò.
    bleriot
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    « #61 : , 28 2006, 15:24:52 »
     íá ôï ðñïáíáöåñüìåíï ìïôÝñ

    http://www.plettenberg-motoren.com/UK/Motoren/aussen/Predator/Motor.htm

    11.000 watt üóï ðåñßðïõ 5 ðëõíôÞñéá êáé áðüäïóç 15 ßððïõò (bhp)
    DeltaMan
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    ÖÝñå ÅÓÕ ôçí áëëáãÞ ðïõ èÜ 'èåëåò íá Äåßò
    « #62 : , 29 2006, 11:33:49 »
    Bleriot ... ÅÃÑÁØÅÓ ...  Grin   Cheesy   Thumbs up

    Êáé ìå ëßãï øÜîéìï ... ï ÅëåãêôÞò åßíáé ï Future 40.160H ôïõ Schulze  ôùí 160 ÁìðÝñ (  Åêðëçîç )  . Êïóôßæåé ðåñßðïõ 550 euro ×ùñßò Öüñï ...

    Èá ôï âñåßôå ó'áõôÝò ôéò óåëßäåò  :   http://www.schulze-elektronik-gmbh.de/index_uk.htm
    « : , 29 2006, 11:43:45 DeltaMan »
    Åðéôõ÷ßá óôç ÆùÞ= ÐÝöôù "í" öïñÝò, Îáíáóçêþíïìáé "í+1" öïñÝò. ÂïÞèá ôïõò ¸ëëçíåò åðáããåëìáôßåò.
    ilias
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    : 4.887
    « #63 : , 16 2006, 20:59:43 »
    Õðáñ÷åé ôñïðïò íá õðïëïãéóïõìå óå åíá ìïôåñ ôá watt ðïõ ìðïñåé íá âãáëåé??
    Velox 26cc
    Last down xxxl
    PrecisionAerobatics Addiction
    Polaris seaplane
    Bard glider
    TopModel CZ Stinger
    Pilot Q.B. 10L
    Tarot 450PRO V2 Flybarless
    ...êáôé ðôÝñõãåò êáé ðïëý óáâïýñá
    Periklis
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    « #64 : , 16 2006, 21:38:24 »
    : ilias , 16 2006, 20:59:43
    Õðáñ÷åé ôñïðïò íá õðïëïãéóïõìå óå åíá ìïôåñ ôá watt ðïõ ìðïñåé íá âãáëåé??

    Êáëçóðåñá êáé áðï ìåíá!
    Åé÷áìå êáíåé åíá ðáñïìïéï ðåéñáìá óôï ÔÅÉ áëëá åé÷áìå êáé åîïðëéóìï êáôáëëçëï. Ç äéáäéêáóéá ðáíôùò çôáí ó÷åôéêá åõêïëç. Åíáó åõêïëïò ôñïðïò åéíáé íá âñåéò ôï âáèìï áðïäùóçò ôïõ ìïôåñ êáé âáóç ôçò ó=Pout/Pin ïðïõ:ó åéíáé ï âáèâìïò áðïäùóçò êáé  Pin  ç éó÷õò åéóïäïõ (Pin=V*I).  Ôáóç óå volt êáé ñåõìá óå Áìðåñ Thumbs up
    Ðñïóï÷ç ìïíï óôç óõíäåóç ôïõ áìðåñïìåôñïõ ãéá ôç ìåôñçóç ôïõ ñåõìáôïò!!! Óå óåéñá óôï êõêëùìá!!!   ×áìüãåëï
    « : , 16 2006, 21:40:14 Periklis »
    ÃéÜííçò ÊùíóôáíôáêÜôïò
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    AKA "jkon" Þ "èåßïò ÃéÜííçò"


    WWW
    « #65 : , 16 2006, 21:43:18 »
    Ìå Üëëá ëüãéá
    Èá ðïëëáðëáóéÜóåéò ôçí ôÜóç (V) ðïõ äÝ÷åôáé ôï ìïôÝñ åðß ôçí Ýíôáóç (A) ðïõ ôñáâÜåé.
    Áõôü åßíáé ç éó÷ýò åéóüäïõ (óå watt)
    Ðïëëáðëáóßáóå ìåôÜ áõôü ôï íïýìåñï ìå ôïí âáèìü áðüäïóçò ôïõ ìïôÝñ êáé èá Ý÷åéò ôçí éó÷ý åîüäïõ (watt).

    jkon (èåßïò ÃéÜííçò)
    ÃéÜííçò ÊùíóôáíôáêÜôïò
    Ðñüåäñïò Å.Á.Á.
    ilias
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    « #66 : , 16 2006, 22:08:22 »
    Èåéå Ãéáííç äçëáäç ð.÷. 10 âïëô  åðé 18 áìðåñ éóïí 180 watt óôçí åéóïäï
    Ï âáèìïò áðïäïóçò ðïéïò åéíáé?
    Ìåôá å÷åé ñïëï ïé óôñïöåò , ç ðñïðåëá êáé ç ìåéùóç óôá watt Þ ìïíï óôá áìðåñ???
    « : , 16 2006, 22:10:53 ilias »
    Velox 26cc
    Last down xxxl
    PrecisionAerobatics Addiction
    Polaris seaplane
    Bard glider
    TopModel CZ Stinger
    Pilot Q.B. 10L
    Tarot 450PRO V2 Flybarless
    ...êáôé ðôÝñõãåò êáé ðïëý óáâïýñá
    bleriot
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    « #67 : , 17 2006, 07:32:10 »
    ï âáèìüò áðüäïóçò åßíáé ìåãáëç éóôïñßá..
    óå ãåíéêÝò ãñáììÝò åßíáé éó÷ýò (Ýñãï? äéïñèþóôå ìå ãéá ôçí ïñïëïãßá) ðïõ ìðáßíåé óôï ìïôÝñ ðñïò áõôü ðïõ âãáßíåé. ç åíÝñãåéá ðïõ ÷Üíåôáé ãßíåôáé èåñìüôçôá.
    Ôï ðñüâëçìá åßíáé, ðùò íá ìåôñÞóïõìå ôçí åíÝñãåéá ôïõ ìïôÝñ ðïõ âãáßíåé äéüôé åßíáé óå ìïñöÞ ñïðÞò óôïí Üîïíá êáé èÝëåé äõíáìüìåôñï.
    Ç þóç ðïõ ìáò åíäéáöÝñåé ãéá ìïíôåëéóôéêïýò ëüãïõò ðáñÜãåôáé áðü ôçí Ýëéêá óýìöùíá ìå ôéò óôñïöÝò, ôá ÷áñáêôçñéóôéêÜ ôçò êáé ôç óôáèåñÜ ôçò, ü÷é áðü ôï ìïôÝñ.
     õðÜñ÷ïõí êÜðïéá ðñïãñÜììáôá ðïõ ìðïñïýí íá óïõ äþóïõí êáôÜ ðñïóÝããéóç ôçí áðüäïôéêüôçôá åíüò ìïôÝñ áí ìåôñÞóåéò ôéò óôñïöÝò, ôá watt êáé ôçí þóç ìå Ýíáí óõãêåêñéìÝíï óõíäõáóìü ìðáôáñßáò-Ýëéêáò.   
    DeltaMan
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    ÖÝñå ÅÓÕ ôçí áëëáãÞ ðïõ èÜ 'èåëåò íá Äåßò
    « #68 : , 17 2006, 11:10:17 »
    ÏíïìÜæåôáé Áðïäïôéêüôçôá (Efficiency) êáé ìåôñÜôáé óå Ðïóïóôü åðß ôïéò åêáôü (%) .
    Ôçí éó÷ý åéóüäïõ ôç ìåôñÜìå ìå Ýíá áðëü Âáôüìåôñï óôï åñãáóôÞñéü ìáò óå Watts . Áõôü äéáèÝôïõìå êáé åßíáé öèçíü .
    Ôçí éó÷ý åîüäïõ ðñÝðåé íá ôç ìåôñÞóïõìå ìå Äõíáìüìåôñï ðÜíù óôïí Üîïíá ôïõ ÌïôÝñ üðùò åðéóÞìáíå êáé ï bleriot .
    Ç äéáöïñÜ ôïõò ìáò äßíåé ôçí 'åðéôõ÷ßá' ôïõ ìïôÝñ íá åêìåôáëëåõôåß ôç ìÝãéóôç äõíáôÞ áðï ôçí éó÷ý åéóüäïõ . Ôçí åðéôõ÷ßá äçëáäÞ ïëüêëçñïõ ôïõ êõêëþìáôïò ìéÜò êáé ôá êáëþäéá , ïé óõíäÝóåéò êáé ôá ìÞêç ðáßæïõí óçìáíôéêü ëüãï .

    ¸ôóé , Üí óôÝëíïõìå ð.÷. 100 Watts óå Ýíá ìïôÝñ êáé óôçí Ýîïäï ôï Äõíáìüìåôñï ìáò äåß÷íåé ðùò ôá 80 Watts èá öôÜóïõí óôïí Üîïíá ðåñéóôñïöÞò ôïõ Ýëéêá , óçìáßíåé ðùò ôá 20 Watts ðÞãáíå ... ×áìÝíá .
    ×áìÝíá åßíáé ãéá ôçí ðôÞóç ìáò ôá 20 Watts , ìéÜò êáé ç Áñ÷Þ ÄéáôÞñçóçò ôçò ÅíÝñãåéáò áðáéôåß Ýíá ðïóïóôü íá ãõñßóåé ðßóù óôç öýóç ...
    Ôï ìïôÝñ ìáò ëïéðüí åêìåôáëëåýåôáé ôá 80 Watts êáé óôç óõãêåêñéìÝíç ðåñßðôùóç Ý÷åé 80% Áðïäïôéêüôçôá (Efficiency) .

    Ðéóôåýù íá ôá åßðá êáëÜ ...  ×áìüãåëï

    DM     
    Åðéôõ÷ßá óôç ÆùÞ= ÐÝöôù "í" öïñÝò, Îáíáóçêþíïìáé "í+1" öïñÝò. ÂïÞèá ôïõò ¸ëëçíåò åðáããåëìáôßåò.
    coolvag
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    ÅõÜããåëïò ÊïõëÜäçò
    « #69 : , 17 2006, 11:25:05 »
    êÁËÇ̸ÑÁ Áðüóôïëå,

    Ãéá åìÝíá ôá åéðåò ôÝëåéá!!!! Thumbs up Thumbs up Thumbs up laugh laugh

    Ôùñá ðáíôá êáôá ôçí äéêç ìïõ ðñïóùðéêç ãíùìç áí èá åêìåôáëåõïóïõí êáé ëéãï ôï back EMF ôïõ  ðçíéïõ ôïõ ìïôåñ, ôïôå èá áíåâáéíå  ëßãï  ç áðïäïôéêüôçôá.

    ÂáããÝëçò
    DeltaMan
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    ÖÝñå ÅÓÕ ôçí áëëáãÞ ðïõ èÜ 'èåëåò íá Äåßò
    « #70 : , 17 2006, 15:01:07 »
    ÂáããÝëç ÊáëçóðÝñá .
    Ôß åßíáé ôï Back EMF ôïõ ðçíßïõ ??
    Åðéôõ÷ßá óôç ÆùÞ= ÐÝöôù "í" öïñÝò, Îáíáóçêþíïìáé "í+1" öïñÝò. ÂïÞèá ôïõò ¸ëëçíåò åðáããåëìáôßåò.
    evan
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    : 7.090


    ÅõÜããåëïò Ìé÷áçëßäçò


    WWW
    « #71 : , 17 2006, 18:42:48 »
    Áí ìïõ åðéôñÝðåé ï óõíïíüìáôïò...

    Back EMF (Back electromotive force):  Åßíáé ç ôÜóç ðïõ áíáðôýóóåôáé óå êõêëþìáôá ðïõ ðåñéëáìâÜíïõí ðçíßï êáé óôá ïðïßá åöáñìüæåôáé åíáëáóóüìåíï Þ ðáëìéêü ñåýìá. ¸÷åé áíÜ ðÜóá óôéãìÞ áíÜðïäç ðïëéêüôçôá óå ó÷Ýóç ìå ôç ôÜóç åéóüäïõ.
    Óôçí ðåñßðôùóç ôùí çëåêôñéêþí êéíçôÞñùí ç ôÜóç áõôÞ ðñïêáëåß çëåêôñåãåñôéêÞ äýíáìç (EMF) ç ïðïßá åìöáíßæåôáé ùò áäñÜíåéá Þ áíôßäñáóç óôçí ðåñéóôñïöÞ ðïõ åðéäéþêïõìå.
    Ìßá ôå÷íéêÞ ãéá íá ìåôñçèåß áõôÞ åßíáé íá äéáêüðôïõìå ôçí ôñïöïäïóßá óå ìéêñÜ êëÜóìáôá ôïõ ÷ñüíïõ êáé íá ìåôñÜìå ôçí ôÜóç ðïõ ðáñÜãåé ôï ìïôÝñ êáôÜ ôçí ðåñéóôñïöÞ ôïõ. Ïðùò åßíáé ãíùóôü êÜèå çëåêôñïêéíçôÞñáò ëåéôïõñãåß êáé þò ãåííÞôñéá, ðáñÜãïíôáò ôÜóç, üôáí ðåñéóôñÝöåôáé.
    ÕðÜñ÷ïõí åëåãêôÝò ôá÷ýôçôáò (ESC) ïé ïðïßïé åöáñìüæïõí ôÜóç óå êÜèå ìïíÜäá ôïõ ÷ñüíïõ óå äýï áðü ôá ôñßá ðçíßá êáé ôï óÞìá ðïõ åìöáíßæåôáé óôï ôñßôï ðçíßï áíé÷íåýåôáé áðü êáôÜëëçëï êýêëùìá êáé  ìåôÜ áðü ìåôáôñïðÞ A to D (áíáëïãéêü óå øçöéáêü) åéóÜãåôáé óôïí åðåîåñãáóôÞ ãéá åðåîåñãáóßá êáé äéüñèùóç ôçò ôÜóçò óôïí åðüìåíï êýêëï. 

    ÖéëéêÜ,

    Å.
    Ç ýóôáôç ìïñöÞ åëåõèåñßáò åßíáé ç óéùðÞ. (ÃéÜííçò Ñßôóïò)
    DeltaMan
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    ÖÝñå ÅÓÕ ôçí áëëáãÞ ðïõ èÜ 'èåëåò íá Äåßò
    « #72 : , 17 2006, 20:33:35 »
    Ôñïìåñü ...
    Åõ÷áñéóôþ Êýñéïé ãéá ôç Äéáöþôéóç . ÄçëáäÞ óå Ðïóïóôü Áðïäïôéêüôçôáò , ðüóï íïìßæåôå ðùò ÷Üíåôáé ëüãù ôïõ öáéíïìÝíïõ Back EMF óå Ýíá áðëü Outrunner êáôçãïñßáò CD-Rom ?
    Êýñéå evan , ðïéïß ÅëåãêôÝò Ôá÷ýôçôáò ôïõ åìðïñßïõ Ý÷ïõí ôüóï ÓïöéóôéêÝ êýêëùìá ?? 
    Åðéôõ÷ßá óôç ÆùÞ= ÐÝöôù "í" öïñÝò, Îáíáóçêþíïìáé "í+1" öïñÝò. ÂïÞèá ôïõò ¸ëëçíåò åðáããåëìáôßåò.
    evan
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    ÅõÜããåëïò Ìé÷áçëßäçò


    WWW
    « #73 : , 17 2006, 21:12:09 »
    Ôï øÜ÷íù. Ìðïñåßò üìùò íá áñ÷ßóåéò ôï äéÜâáóìá áðü ôá ðáñáêÜôù:

    http://www.maxim-ic.com/appnotes.cfm/appnote_number/809
    http://www.elektor.gr/product_info.php?products_id=394?mar06 (Üñèñï áðü ôåý÷ïò Ìáñôßïõ 2006)
    http://www.freepatentsonline.com/4876491.html
    Ç ýóôáôç ìïñöÞ åëåõèåñßáò åßíáé ç óéùðÞ. (ÃéÜííçò Ñßôóïò)
    coolvag
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    ÅõÜããåëïò ÊïõëÜäçò
    « #74 : , 17 2006, 21:21:02 »
    ÊáëçóðÝñá óå ïëïõò

    Ïðùò ðÜíôá óõíïíüìáôå óùóôüò Thumbs up Thumbs up Thumbs up

    Áðïóôüëç êïéôá åíá ðáñÜäåéãìá.


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