CroDriver Posted October 10, 2009 Author Share Posted October 10, 2009 (edited) J I jedno glupo pitanje. Ako ti je taj motor trofazni, sinkroni sa upravljajućom elektronikom, zar onda elektronika nezna na koliko se to vrti? Zar ne možeš uzeti direktno rpm sa struje motora?! :huh: Nop. DC motor aka torque monster :naughty: Kasnije možda SepEx ili AC ali su oni puuuuno kompliciraniji i teže je, rekao bi i nemoguće izvući tolike snage na koje ciljam iz relativno malog i laganog motora Edited October 10, 2009 by CroDriver Link to comment Share on other sites More sharing options...
mr_G Posted October 10, 2009 Share Posted October 10, 2009 Dobro DC motor. Nema četkice, jel tako? Ima namotaj statora i permanentni magnet na rotoru? Ili? Nekako mi nevjerovatno zvuči da 400A guraš kroz četkice... :lol: Link to comment Share on other sites More sharing options...
CroDriver Posted October 10, 2009 Author Share Posted October 10, 2009 Dobro DC motor. Nema četkice, jel tako? Ima namotaj statora i permanentni magnet na rotoru? Ili? Nekako mi nevjerovatno zvuči da 400A guraš kroz četkice... :lol: Nije 400 Amp nego 2000 No dosta o detaljima konstrukcije motora Link to comment Share on other sites More sharing options...
mr_G Posted October 10, 2009 Share Posted October 10, 2009 Uopće me ne zanima konstrukcija nego kako radi. Možda možemo smisliti nešto bolje. No ako neznam kako radi... Uglavnom trofazni, AC, step ili neznam koji, možeš izvući van iz pobude... DC ne možeš, ali DC neće ići na 2000A.. Link to comment Share on other sites More sharing options...
CroDriver Posted October 10, 2009 Author Share Posted October 10, 2009 Uopće me ne zanima konstrukcija nego kako radi. Možda možemo smisliti nešto bolje. No ako neznam kako radi... Uglavnom trofazni, AC, step ili neznam koji, možeš izvući van iz pobude... DC ne možeš, ali DC neće ići na 2000A.. Ovo ti je posebna vrst motora: Custom-made-one-of-a-kind-madafaka-dual-DC-motor-mit-komutator Link to comment Share on other sites More sharing options...
mr_G Posted October 10, 2009 Share Posted October 10, 2009 hebaji ga, Nisam baš volio predmet elektro-energetika tako da jedinoo da mi nacrtaš bi nešto shvatio iz toga.. :lol: Link to comment Share on other sites More sharing options...
ivwan19 Posted October 10, 2009 Share Posted October 10, 2009 http://images.google.hr/imgres?imgurl=http://img.directindustry.com/pdf/repository_di/27096/migatron-ultrasonic-sensors-for-industry-level-control-22637_2b.jpg&imgrefurl=http://pdf.directindustry.com/pdf/migatron/migatron-ultrasonic-sensors-for-industry-level-control/27096-22637-_2.html&usg=__Vg5tukIQZFDQZkw2ttlOWEl4YpA=&h=1263&w=1000&sz=116&hl=hr&start=2&tbnid=PoOA8tS5mjLx-M:&tbnh=150&tbnw=119&prev=/images%3Fq%3Dsenzors%2Bin%2Bindustry%26gbv%3D2%26hl%3Dhr%26client%3Dfirefox-a%26rls%3Dorg.mozilla:hr:official%26sa%3DG ovak imam ja nekaj u firmi ak ti odgovara! Link to comment Share on other sites More sharing options...
Risbo Posted October 13, 2009 Share Posted October 13, 2009 Za hallov senzor ne treba biti rotor sa magnetima - sto posto isprobano. I hallov je puno pouzdaniji od magnetnog uz "čitljiviji" signal (pravokutni) naspram sinusoide kod magnetnog. Link to comment Share on other sites More sharing options...
fire Posted October 13, 2009 Share Posted October 13, 2009 Za hallov senzor ne treba biti rotor sa magnetima - sto posto isprobano.I hallov je puno pouzdaniji od magnetnog uz "čitljiviji" signal (pravokutni) naspram sinusoide kod magnetnog. nije sinus kod vr senzora. Link to comment Share on other sites More sharing options...
Risbo Posted October 14, 2009 Share Posted October 14, 2009 jbga, je, mjerio osciloskopom Link to comment Share on other sites More sharing options...
fire Posted October 14, 2009 Share Posted October 14, 2009 jbga, je, mjerio osciloskopom Mozda imas los osciloskop, mozda gledao posle nekog filtera, a mozda ti je remenica bez ostrih rubova(ima glake rubove). To je bas fora vr senzora, dok dode blizu zub da napravi jaki i kratki signal. Link to comment Share on other sites More sharing options...
Risbo Posted October 21, 2009 Share Posted October 21, 2009 a kaj je ovo nego sinusoida Samo ima strme bregove.... Link to comment Share on other sites More sharing options...
fire Posted October 21, 2009 Share Posted October 21, 2009 a kaj je ovo nego sinusoida Samo ima strme bregove.... cista sinosuida koja se sastoji od zbroj beskonacno sisnusa Link to comment Share on other sites More sharing options...
mr_G Posted October 21, 2009 Share Posted October 21, 2009 Upravo. Kakva sinusoida... :lol: S tim da je napon impulsa ovisan o brzini vrtnje, tako da moraš imati filter za to... Dakle, puno bolji hall... Link to comment Share on other sites More sharing options...
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