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PYTANIA I ODPOWIEDZI ProScan Serwis Wykrywaczy Metali Naprawy, obsługa, porady, ciekawostki etc. (Uwaga: treści komercyjne !) 2021-01-06T20:24:09+01:00 http://www.proscan.gliwice.pl/forum/feed.php?f=9&t=195 2021-01-06T20:24:09+01:00 2021-01-06T20:24:09+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25717#p25717 <![CDATA[Re: ramówka]]> Statystyki: autor: Lampart — śr sty 06, 2021 8:24 pm

]]> 2018-02-14T22:47:07+01:00 2018-02-14T22:47:07+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25185#p25185 <![CDATA[Re: ramówka]]>
:pa

proscan

Statystyki: autor: ProScan — śr lut 14, 2018 10:47 pm

]]> 2018-02-14T22:39:40+01:00 2018-02-14T22:39:40+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25184#p25184 <![CDATA[Re: ramówka]]>
Więc testowałem już opcje gdzie cewka nadawcza wysyła sygnał, który jest odbierany przez odbiorczą a ta jest wpięta końcami w oba wejścia wzmacniacza operacyjnego.
Zauważyłem duży spadek zakłóceń na wyjściu wzmacniacza. Oczywistym jest że im mniejsza jest cewka odbiorcza, tym mniejsze zakłócenia. Średnicami cewki odbiorczej można dosyć bezkarnie manewrować. Zasięg i tak zależny jest od cewki nadawczej. Ponadto, taka konfiguracja niweluje wpływ pola magnetycznego ziemi podczas zmian położenia cewki co jest dosyć uciążliwe w wykrywaczach o małych opóźnieniach impulsów próbkujących.
Druga opcja polega na tym że na oba wejścia wzmacniacza wchodzą sygnały z cewki nadawczej i odbiorczej. W takim wypadku, drugie końcówki cewek podłączone są do masy.
Chcę jeszcze przetestować opcje, gdzie dwie cewki są nadawcze, kluczowane oddzielnymi tranzystorami i sygnały z nich również wchodzą na wzmacniacz w konfiguracji różnicowej. Nie wiem czy ma to sens ale i tak to zrobię. :lol:

Statystyki: autor: Unipuls — śr lut 14, 2018 10:39 pm

]]> 2018-02-14T21:11:50+01:00 2018-02-14T21:11:50+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25183#p25183 <![CDATA[Re: ramówka]]>
:pa

proscan

Statystyki: autor: ProScan — śr lut 14, 2018 9:11 pm

]]> 2018-02-14T15:25:29+01:00 2018-02-14T15:25:29+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25182#p25182 <![CDATA[Re: ramówka]]> Coś tam wiem ale przecież nie wszystko :)

Statystyki: autor: Unipuls — śr lut 14, 2018 3:25 pm

]]> 2018-02-14T09:07:23+01:00 2018-02-14T09:07:23+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25181#p25181 <![CDATA[Re: ramówka]]>
I faktycznie- sygnał napięciowy można odejmować na rożne sposoby. Ale to Pan wię - więc po co te pytanie?

:pa

proscan

Statystyki: autor: ProScan — śr lut 14, 2018 9:07 am

]]> 2018-02-13T23:32:21+01:00 2018-02-13T23:32:21+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25180#p25180 <![CDATA[Re: ramówka]]> Statystyki: autor: Unipuls — wt lut 13, 2018 11:32 pm

]]> 2018-02-02T17:24:40+01:00 2018-02-02T17:24:40+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=25158#p25158 <![CDATA[Re: ramówka]]> Statystyki: autor: Gość — pt lut 02, 2018 5:24 pm

]]> 2007-04-01T09:40:12+01:00 2007-04-01T09:40:12+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=2780#p2780 <![CDATA[Re: ramówka]]> de facto dwie cewki w konfiguracji różnicowej.

:pa

proscan

Statystyki: autor: ProScan — ndz kwie 01, 2007 9:40 am

]]> 2007-04-01T02:30:19+01:00 2007-04-01T02:30:19+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=2777#p2777 <![CDATA[Re: ramówka]]> Statystyki: autor: sOnar — ndz kwie 01, 2007 2:30 am

]]> 2007-03-31T10:04:13+01:00 2007-03-31T10:04:13+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=2774#p2774 <![CDATA[Re: ramówka]]> Statystyki: autor: ProScan — sob mar 31, 2007 10:04 am

]]> 2007-03-31T02:42:26+01:00 2007-03-31T02:42:26+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=2770#p2770 <![CDATA[Re: ramówka]]> Statystyki: autor: sOnar — sob mar 31, 2007 2:42 am

]]> 2006-03-11T06:42:50+01:00 2006-03-11T06:42:50+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=734#p734 <![CDATA[Re: ramówka]]> Statystyki: autor: wiciu_r — sob mar 11, 2006 6:42 am

]]> 2006-03-10T22:43:46+01:00 2006-03-10T22:43:46+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=730#p730 <![CDATA[Re: ramówka]]> Statystyki: autor: ProScan — pt mar 10, 2006 10:43 pm

]]> 2006-03-10T16:31:08+01:00 2006-03-10T16:31:08+01:00 http://www.proscan.gliwice.pl/forum/viewtopic.php?t=195&p=726#p726 <![CDATA[ramówka]]> Statystyki: autor: wiciu_r — pt mar 10, 2006 4:31 pm

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