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 Ïîìîæèòå. Êàê èçìåðèòü åìêîñòü ïëîñêîãî êîíäåíñàòîðà ñ âîäîé |
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 Jul 5 2016, 23:48
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Ìåñòíûé
Ãðóïïà: Ó÷àñòíèê
Ñîîáùåíèé: 236
Ðåãèñòðàöèÿ: 1-04-06
Ïîëüçîâàòåëü ¹: 15 688
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Ãðàæäàíå, çàíèìàëñÿ ëè êòî-íèáóäü ïðàêòè÷åñêè äåòñêèìè èçìåðåíèÿìè åìêîñòè ïëîñêîãî êîíäåíñàòîðà, ïîãðóæåííîãî â îáû÷íóþ âîäîïðîâîäíóþ âîäó?. Èìååòñÿ äâå ïëàñòèíû (èç ìåòàëëà) 100x60ìì ñ ðàññòîÿíèåì ìåæäó ïëàñòèíàìè ïîðÿäêà 100ìì. Ìåæäó ïëàñòèíàìè îáû÷íàÿ âîäà èç-ïîä êðàíà. Íó âîò ÷òî-òî âðîäå òàêîãî  Ïî øêîëüíîé ôîðìóëå äëÿ ïëîñêîãî êîíäåíñàòîðà C= ε0*ε*S/d åìêîñòü äîëæíà áûòü îêîëî 0.4 0.04 íàíîôàðàä. Áåðåì êîíäîâûé ñîâåòñêèé äèâàéñ äëÿ èçìåðåíèÿ åìêîñòè è ïîëó÷àåì   íó à åñëè áåç äèâàéñà ïîäàâàòü ñòóïåíüêó íàïðÿæåíèÿ íà êîíäåíñàòîð, òî ïîëó÷àåì âîò òàêóþ çàãîãóëèíó  Çàãîãóëèíà âðîäå áû êàê âïîëíå ñîîòâåòñòâóåò ñõåìå  RC-öåïî÷êè ñ ïàðàëëåëüíûì è ïîñëåäîâàòåëüíûì ñîïðîòèâëåíèÿìè. (èçâåñòíîå ñîïðîòèâëåíèå R=5êÎì, R1, R2 è C íåèçâåñòíû è îöåíèâàþòñÿ ïî ïåðåõîäíûì êðèâûì) Îäíàêî åñòü íüþàíñ. Âñÿêèå ïîäãîíêè ïàðàìåòðîâ ñõåìû ïîä íàáëþäàåìûå êðèâûå äàþò çíà÷åíèÿ åìêîñòè íà óðîâíå ìèëëèôàðàä. ×òî íèêàê íå ïîõîæå íè íà øêîëüíóþ ôîðìóëó, íè íà çíà÷åíèå åìêîñòè, èçìåðåííîå äèâàéñîì. È ÷òî äåëàòü - íåÿñíî.
Ñîîáùåíèå îòðåäàêòèðîâàë evgen2 - Jul 6 2016, 18:03
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Îòâåòîâ
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Jul 6 2016, 07:56
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Ìåñòíûé
Ãðóïïà: Ó÷àñòíèê
Ñîîáùåíèé: 236
Ðåãèñòðàöèÿ: 1-04-06
Ïîëüçîâàòåëü ¹: 15 688
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Öèòàòà(mcheb @ Jul 6 2016, 09:04)  Óâåëè÷üòå âðåìÿ èìïóëüñà ðàç â 10 è ëó÷øå ñäåëàòü åãî ðàçíîïîëÿðíûì. Ðàçíîïîëÿðíûì èìïóëüñ â ìèêðîñõåìå ñäåëàòü ïðîáëåìàòè÷íî, à âðåìÿ è òàê - ñåêóíäû (íà ôîòî - îêîëî 0.7), â èçìåðèòåëÿõ ýëåêòðîïðîâîäíîñòè âîäû âðîäå áû êàê ðåêîìåíäóþò ìèëëèñåêóíäû, "÷òîáû íå íà÷èíàëèñü ýëåêòðîõèìè÷åñêèå ïðîöåññû" Öèòàòà(MegaVolt @ Jul 6 2016, 10:48) Òàê íå âîïðîñ. Ýëåêòðîäû òîëüêî íóæíî çàèçîëèðîâàòü. Åñëè îíè êîíòàêòèðóþò ñî ñðåäîé òî óæå ìåíÿòüñÿ áóäåò ñîïðîòèâëåíèå. Ïðè÷¸ì íå òîëüêî îò âîäû íî è îò ñîëåé è ïðî÷åãî. òàê õî÷åòñÿ è ðûáêó ñúåñòü... è îäíîé ïàðîé ýëåêòðîäîâ îáîéòèñü
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Jul 6 2016, 08:08
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Ìåñòíûé
Ãðóïïà: Ó÷àñòíèê
Ñîîáùåíèé: 236
Ðåãèñòðàöèÿ: 1-04-06
Ïîëüçîâàòåëü ¹: 15 688
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Öèòàòà(MegaVolt @ Jul 6 2016, 10:59) Òàê êòî ìåøàåò. Áåð¸ì ïàðó ýëåêòðîäîâ è ïîêðûâàåì èõ ëàêîì. (äëÿ äîìàøíèõ ýêñïåðèìåíòîâ ïîéä¸ò) Äà íå âîïðîñ. Íî êàê îòëè÷èòü âëàæíûé òîðô, â êîòîðîì 99% îáú¸ìà âîäà, "íî åùå íå òå÷¸ò", îò ãðóíòîâîé âîäû?
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Jul 6 2016, 09:02
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Ìåñòíûé
Ãðóïïà: Ó÷àñòíèê
Ñîîáùåíèé: 236
Ðåãèñòðàöèÿ: 1-04-06
Ïîëüçîâàòåëü ¹: 15 688
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Öèòàòà(MegaVolt @ Jul 6 2016, 11:22) Áîþñü ÷èñòî ýëåêòðè÷åñêè ñêàçàòü ÷òî ìåæäó äâóìÿ ýëåêòðîäàìè íå âîçìîæíî. Ïîòîìó ÷òî ÿ âïîëíå äîïóñêàþ âîçìîæíîñòü ñîçäàíèÿ äâóõ ñìåñåé ïåñêà âîäû è ñîëè ñ ðàçíûìè ñîñòàâàìè íî îäèíàêîâûìè ýëåêòðè÷åñêèìè ïàðàìåòðàìè. Ïðåäïîëàãàåòñÿ, ÷òî óñòðîéñòâî ñòîèò â îäíîì è òîì æå ìåñòå è îòñëåæèâàåòñÿ äèíàìèêà. À ïî ðàçíûì ìåñòàì òàñêàòü...òîæå ïðîáîâàëè. Áîëüøå âñåãî çàâèñèò îò íàëè÷èÿ çàçîðîâ ìåæäó èçìåðåÿìûì è ýëåêòðîäàìè. Åñëè âîòíóòü ïëîòíî, òî ìåðÿåì îäíî, à åñëè íåïëîòíî èëè ïîøàòàòü è íåò âîäû - íàìåðÿåì ñîâñåì äðóãîå.
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Ñîîáùåíèé â ýòîé òåìå
 evgen2 Ïîìîæèòå. Êàê èçìåðèòü åìêîñòü ïëîñêîãî êîíäåíñàòîðà ñ âîäîé Jul 5 2016, 23:48 Ìåäæèêèâèñ Ýòî ïðîöåññû â äâîéíîì ýëåêòðè÷åñêîì ñëîå íà ãðàíè... Jul 6 2016, 04:06  evgen2 Öèòàòà(Ìåäæèêèâèñ @ Jul 6 2016, 07:06) Ýò... Jul 6 2016, 07:48 MegaVolt Öèòàòà(evgen2 @ Jul 6 2016, 10:43) Ìåæäó ... Jul 6 2016, 07:48 Onkel Öèòàòà(evgen2 @ Jul 6 2016, 11:48) Ìåæäó ... Jul 6 2016, 21:25 evgen2 Öèòàòà(Onkel @ Jul 7 2016, 00:25) èçìåðèò... Jul 6 2016, 21:49 Àëåêñàíäð1 Ó êîíäåíñàòîðà ìåæäó ïëàñòèíàìè äîëæåí áûòü äèýëåê... Jul 6 2016, 05:06 agregat Öèòàòà(evgen2 @ Jul 6 2016, 12:02) Åñëè â... Jul 6 2016, 10:08 evgen2 Öèòàòà(agregat @ Jul 6 2016, 13:08) Äëÿ õ... Jul 6 2016, 10:51 MrYuran Öèòàòà(evgen2 @ Jul 6 2016, 10:56) Ðàçíîï... Jul 6 2016, 14:27 _pv Öèòàòà(MrYuran @ Jul 6 2016, 21:27) Íà ñà... Jul 6 2016, 15:31 Onkel êàê ïðàâèëüíî çàìåòèë ðÿä òîâàðèùåé, ó âàñ íå êîíä... Jul 6 2016, 07:14 _pv ÖèòàòàÏî øêîëüíîé ôîðìóëå äëÿ ïëîñêîãî êîíäåíñàòîð... Jul 6 2016, 14:17 evgen2 Öèòàòà(_pv @ Jul 6 2016, 17:17) íà ïîðÿäî... Jul 6 2016, 17:16 _pv Öèòàòà(evgen2 @ Jul 7 2016, 00:16) åùå ìî... Jul 6 2016, 18:07 evgen2 Öèòàòà(_pv @ Jul 6 2016, 21:07) â îïòè÷åñ... Jul 6 2016, 18:15 РўРёРјСѓСЂ Ð ÑžÐ Â°Ð Ñ Òàê âû ãåîôèçèêó èçîáðåòàåòå.
Ïîñìîòðèòå https://r... Jul 6 2016, 18:15 evgen2 Öèòàòà(РўРёРјСѓСЂ Ð ÑžÐ Â°Ð Ñ @ Jul... Jul 6 2016, 18:37 Onkel íó "ïðîêàëèòü" íå çíà÷èò ãðåòü äî 3 êèëî... Jul 7 2016, 09:18 evgen2 Öèòàòà(Onkel @ Jul 7 2016, 12:18) íó ... Jul 7 2016, 10:43 Ìåäæèêèâèñ Öèòàòà(evgen2 @ Jul 7 2016, 14:43) Õî÷åòñ... Jul 10 2016, 08:14 MrYuran Âîò, îòêîïàë.
Êñòàòè, êëàññíàÿ èäåÿ, ïðåîáðàçîâàò... Jul 7 2016, 11:31 rx3apf ß áû ïåðâûì äåëîì ïîïðîáîâàë LC-êîíóð, ãäå åìêîñòü... Jul 7 2016, 18:52 Onkel Öèòàòà(rx3apf @ Jul 7 2016, 22:52) Ìîæíî ... Jul 7 2016, 20:34 evgen2 Öèòàòà(Onkel @ Jul 7 2016, 23:34) öåëàÿ ã... Jul 7 2016, 21:18 GetSmart Èçìåðÿòü, íàâåðíîå, ëó÷øå êàêèì-òî ìíîãîñòàäèéíûì ... Jul 8 2016, 05:31 rudy_b Êîíòðîëèðîâàòü âîäó ïðàâèëüíåå ïî äèýëåêòðè÷åñêîé ... Jul 8 2016, 14:04
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