Ngati muli ndi mwayi wochotsa makina osindikizira a maginito, nthawi zambiri mumawona mawonekedwe amkati monga momwe tawonetsera pamwambapa.Maginito encoder amapangidwa ndi shaft makina, kapangidwe ka zipolopolo, gulu la PCB kumapeto kwa encoder, ndi kachipangizo kakang'ono.maginito disckuzungulira ndi shaft kumapeto kwa shaft yamakina.
Kodi makina ojambulira maginito amayesa bwanji kuyankha kozungulira?
Hall Effect: Kupanga kusiyana komwe kungathe kuchitika pa kondakitala yemwe amanyamula mphamvu yamagetsi pomwe mphamvu ya maginito ikugwiritsidwa ntchito molunjika kumayendedwe apano.
Ngati mphamvu ya maginito yomwe ikugwiritsidwa ntchito kwa kondakitala ikuzungulira momwe muvi wakumwamba uliri ndi njira yomwe ikuyenderera ngati axis, kusiyana kwa Hall kudzasintha chifukwa cha kusintha kwa ngodya pakati pa mphamvu ya maginito ndi kondakitala. Kusintha kosinthika kwa kusiyana komwe kungathe kukhala ndi mapindikira a sinusoidal.Chifukwa chake, kutengera mphamvu yamagetsi kumbali zonse ziwiri za kondakitala wopatsa mphamvu, ngodya yozungulira ya maginito imatha kuwerengedwa mosintha.Uwu ndiye njira yoyambira yogwirira ntchito ya makina ojambulira maginito poyesa mayankho a malo ozungulira.
Zofanana ndi mfundo yoti woyengayo amagwiritsa ntchito ma seti awiri amitundu iwiri yotulutsa, zinthu ziwiri (kapena ziwiri) zolowera holo zokhala ndi mayendedwe apakalipano zimafunikanso mu encoder ya maginito kuti zitsimikizire kulumikizana kwapadera pakati pa malo ozungulira a maginito. ndi mphamvu yamagetsi (yophatikiza).
Masiku ano, masensa a Hall (chips) omwe amagwiritsidwa ntchito mu ma encoder maginito nthawi zambiri amakhala ndi kuphatikizika kwakukulu, komwe sikumangophatikiza zigawo za semiconductor za holo ndi mawonekedwe okhudzana ndi ma siginecha ndi mabwalo owongolera, komanso kuphatikiza mitundu yosiyanasiyana ya ma module otulutsa, monga sine ndi cosine analog. ma siginali, ma sikelo a square wave digital level kapena ma unit bus communication output.
Mwanjira imeneyi, ikani maginito okhazikika ngati maginito a Neodymium omwe amapanga mphamvu yamagetsi kumapeto kwa encoder yozungulira shaft, ikani kachipangizo kakang'ono kamene tatchulidwa pamwambapa pa bolodi la dera la PCB, ndikuyandikira maginito okhazikika kumapeto kwa encoder. shaft malinga ndi zofunikira zina (njira ndi mtunda).
Pakuwunika ma voliyumu amagetsi kuchokera ku sensa ya holo kudzera pa bolodi ya PCB, malo ozungulira a encoder rotor amatha kudziwika.
Kapangidwe ndi mfundo yogwirira ntchito ya maginito encode imasankha chofunikira chapadera pa maginito okhazikika mwachitsanzo maginito, mawonekedwe a maginito, mayendedwe amagetsi, ndi zina zambiri.maginito a Neodymium maginitodisc ndiye njira yabwino kwambiri ya maginito.Ningbo Horizon Magnetics ndi odziwa kupereka ambiri opanga ma encodes maginito okhala ndi kukula kwake.maginito a diametrical Neodymium disk, D6x2.5mm ndi D10x2.5mm diametric disc Neodymium maginito omwe ali zitsanzo zotchuka kwambiri.
Zitha kuwoneka kuti poyerekeza ndi encoder yachikhalidwe ya optical, encoder ya maginito sifunikira disk code yovuta ndi gwero la kuwala, chiwerengero cha zigawo zake ndizochepa, ndipo mawonekedwe ozindikira ndi osavuta.Kuphatikiza apo, chinthu cha Hall chilinso ndi zabwino zambiri, monga mawonekedwe olimba, kukula kochepa, kulemera kochepa, moyo wautali wautumiki, kukana kugwedezeka, kusawopa fumbi, mafuta, nthunzi yamadzi ndi kuipitsidwa kwa chifunga chamchere kapena kudikirira kwa dzimbiri.
Pamene ukadaulo wa maginito encoder umagwiritsidwa ntchito pamayendedwe ozungulira agalimoto yamagetsi, thesintered NdFeB maginito yamphamvuya encoder maginito imatha kukhazikitsidwa mwachindunji kumapeto kwa shaft yamoto.Mwanjira iyi, imatha kuthetsa kuphatikizika kosinthika (kapena kulumikiza) komwe kumafunikira mukamagwiritsa ntchito cholembera chachikhalidwe, ndikukwaniritsa muyeso wopanda kulumikizana, womwe umachepetsa chiopsezo cha kulephera kwa encoder (kapena kuwonongeka) chifukwa cha kugwedezeka kwa shaft yamakina panthawi. ntchito ya galimoto yamagetsi.Chifukwa chake zimathandizira kukhazikika kwa magwiridwe antchito amagetsi amagetsi.
Nthawi yotumiza: Jul-21-2022