Ngokwemvelo yento etholiwe, ukusetshenziswa kwabo kwenzwa ye-Magnetic Hall effect ingahlukaniswa ngokusebenza okuqondile kanye nokusetshenziswa okungaqondile.Eyokuqala iwukubona ngokuqondile inkambu kazibuthe noma izici kazibuthe zento ehloliwe, futhi okokugcina ukuthola indawo kazibuthe esethwe ngokuzenzisa entweni ehloliwe.Le nkundla kazibuthe ingumthwali wolwazi olutholiwe.Ngayo, izinto eziningi ezibonakalayo ezingezona zikagesi nezingezona uzibuthe, njengejubane, ukusheshisa, i-engeli, isivinini se-angular, ama-revolutions, isivinini sokujikeleza kanye nesikhathi lapho isimo sokusebenza sishintsha khona siguqulelwa kubuningi bukagesi ukuze kutholwe futhi kulawuleke.
Izinzwa zomphumela wehholo zihlukaniswe ngezinhlobo zedijithali ne-analog ngokusekelwe kusignali yokuphumayo.
I-voltage ephumayo yokuphuma kwedijithali Izinzwa zomphumela wehholo inobudlelwano bomugqa nobukhulu benkambu kazibuthe esetshenziswayo.
Inzwa yomphumela we-analogi yehholo iqukethe isici se-Hall, i-amplifier yomugqa kanye nomlandeli we-emitter, okhipha ubuningi be-analog.
Ukukalwa Kokususwa
Ozibuthe ababili unomphela bathandaI-Neodymium Magnetszibekwe nge-polarity efanayo.Inzwa yeHholo yedijithali ibekwe phakathi nendawo, futhi amandla ayo okungenisa kazibuthe anguziro.Leli phuzu lingasetshenziswa njengephoyinti elinguziro lokusuka.Lapho inzwa yehholo yenza i-displacement, inzwa inokukhishwa kwe-voltage, futhi i-voltage ilingana ngokuqondile nokufuduka.
Ukukala Ngempoqo
Uma amapharamitha anjengokushuba nokucindezela ashintshwa abe ukugudluka, ubukhulu bengcindezi nokucindezela kungalinganiswa.Ngokwalesi simiso, inzwa yamandla ingenziwa.
I-Angular Velocity Measurement
Namathisela ucezu lwensimbi kazibuthe onqenqemeni lwediski yezinto ezingezona uzibuthe, beka inzwa yehholo eduze komphetho wediski, uzungezisa idiski ngomjikelezo owodwa, inzwa yehholo ikhipha ukushaya kwenhliziyo, ukuze inani lama-revolutions ( counter) ingalinganiswa.Uma imitha yefrikhwensi ixhunyiwe, isivinini singalinganiswa.
I-Linear Velocity Measurement
Uma inzwa yeHholo eshintshayo ihlelwa njalo kuthrekhi ngokuya ngesimo esinqunywe kusengaphambili, isignali ye-pulse ingalinganiswa kusuka kumjikelezo wokulinganisa lapho uzibuthe unomphela uthanda.Samarium Cobaltefakwe emotweni ehambayo idlula kuyo.Ijubane elihambayo lemoto lingalinganiswa ngokuya ngokusatshalaliswa kwesignali ye-pulse.
Ukusetshenziswa kwe-Hall Sensor Technology ku-Automobile Industry
Ubuchwepheshe bezinzwa zehholo busetshenziswa kakhulu embonini yezimoto, okuhlanganisa amandla, ukulawula umzimba, ukulawulwa kokudonsa kanye ne-anti lock braking system.
Ifomu lenzwa yeHholo linquma umehluko wesekethe yokukhulisa i-amplification, futhi okukhiphayo kufanele kuhambisane nedivayisi elawulwayo.Lokhu okukhiphayo kungase kube i-analog, njengenzwa yesikhundla sokusheshisa noma inzwa ye-throttle position;noma idijithali, njenge-crankshaft noma inzwa yokuma ye-camshaft.
Uma ingxenye yeHholo isetshenziselwa inzwa ye-analog, le nzwa ingasetshenziselwa ithemometha kusistimu ye-air conditioning noma inzwa ye-throttle position kusistimu yokulawula amandla.Isici sehholo sixhunywe ne-amplifier ehlukile, futhi i-amplifier ixhunywe ne-NPN transistor.Uzibuthe unomphelaNdFeB or I-SmCoigxilwe ku-shaft ejikelezayo.Lapho i-shaft ijikeleza, insimu kazibuthe esakhiweni sehholo iyaqiniswa.I-voltage yaseHholo ekhiqizwayo ilingana namandla kazibuthe.
Uma i-elementi yehholo isetshenziselwa amasignali edijithali, njengenzwa yokuma kwe-crankshaft, inzwa yokuma kwe-camshaft noma inzwa yesivinini semoto, umjikelezo kufanele ushintshwe kuqala.Isici sehholo sixhunywe ne-amplifier ehlukile, exhunywe ne-trigger ye-Schmidt.Kulokhu kucushwa inzwa ikhipha isignali yokuvula noma yokuvala.Emasekhethini amaningi ezimoto, izinzwa zeHholo ziyizibambisi zamanje noma amasekhethi esignali aphansi.Ukuze uqedele lo msebenzi, i-NPN Transistor idinga ukuxhunywa ekukhiqizweni kwe-Schmitt trigger.Indawo kazibuthe idlula engxenyeni yehholo, futhi i-blade esondweni le-trigger idlula phakathi kwendawo kazibuthe nento yehholo.
Isikhathi sokuthumela: Oct-25-2021