Hall effect sensor kana Hall effect transducer inzwa yakasanganiswa yakavakirwa paHoro mhedzisiro uye inoumbwa neHoro element uye yayo yekubatsira dunhu.Hall sensor inoshandiswa zvakanyanya mukugadzirwa kwemaindasitiri, chekufambisa uye hupenyu hwezuva nezuva.Kubva mukati mechimiro chemukati chehoro sensor, kana mukuita kwekushandisa, iwe uchaona kuti iyozvachose maginetichikamu chakakosha chekushanda.Nei magineti echigarire achidikanwa kune maHoro sensors?
Chekutanga pane zvese, tanga kubva kune inoshanda musimboti weHall sensor, Hall Effect.Hall Effect imhando yemagetsi emagetsi, yakawanikwa neAmerican physicist Edwin Herbert Hall (1855-1938) muna 1879 paaidzidza conductive mashandiro esimbi.Kana iyo yazvino ichipfuura nepa conductor perpendicular kune yekunze magineti, mutakuri anotsausa, uye imwezve yemagetsi munda inogadzirwa perpendicular kugwara rezvino uye remagineti, zvichikonzera mutsauko ungangoita pamigumo yese yemuitisi.Ichi chiitiko iHoro mhedzisiro, iyo inonzi zvakare Hall inogona mutsauko.
Horo mhedzisiro ndiko kutsauka kwekufamba kunochajiswa zvimedu zvakakonzerwa nechisimba cheLorentz mune magineti.Kana machaji zvimedu (maerekitironi kana maburi) akavharirwa muzvinhu zvakasimba, kutsauka uku kunotungamirira kukuunganidzirwa kwechaji yakanaka uye isina kunaka mugwara perpendicular kune yazvino uye magineti, nekudaro kugadzira imwe transverse yemagetsi munda.
Isu tinoziva kuti kana ma electrons akafamba mumunda wemagnetic, anozokanganiswa neLorentz force.Sezviri pamusoro, ngatitangei kutarisa mufananidzo uri kuruboshwe.Apo electron inofamba ichienda kumusoro, ikozvino inogadzirwa nayo inoenda pasi.Zvakanaka, ngatishandisei mutemo weruboshwe, rega mutsara wemagnetic sensing wemagnetic field B (wapfurwa muscreen) upinde muchanza cheruoko, kureva kuti, chanza cheruoko chiri kunze, uye chinongedza minwe mina nzira yazvino, kureva, mapoinzi mana pasi.Zvadaro, kutungamira kwechigunwe ndiyo simba rekutungamira kwerekitironi.Maerekitironi anomanikidzwa kurudyi, saka kubhadharisa mundiro yakatetepa kunorerekera kune rimwe divi pasi pekuita kwekunze kwemagineti.Kana erekitironi yakarerekera kurudyi, mutsauko unokwanisa kuumbwa kuruboshwe nekurudyi.Sezvinoratidzwa mumufananidzo uri kurudyi, kana voltmeter yakabatanidzwa kuruboshwe uye kurudyi, iyo voltage ichaonekwa.Uyu ndiwo musimboti wekutanga wehoro induction.Iyo yaonekwa voltage inonzi hall induced voltage.Kana iyo yekunze magineti yakabviswa, iyo Horo voltage inonyangarika.Kana inomiririrwa nemufananidzo, Hall mhedzisiro yakafanana neinotevera nhamba:
i: yazvino kutungamira, B: kutungamira kwekunze remagineti, V: Horo voltage, uye madiki madiki ari mubhokisi anogona kutorwa semaerekitironi.
Kubva pamusimboti wekushanda weHall sensor, inogona kuwanikwa kuti Hall effect sensor is an active sensor, iyo inofanirwa kuda ekunze magetsi uye magineti kuti ishande.Tichifunga zvinodikanwa zvevhoriyamu diki, huremu huremu, kuderera kwesimba kushandiswa uye nyore kushandisa mukushandiswa kweiyo sensor, yakapusa inogara magineti kwete yakaoma electromagnet inoshandiswa kupa yekunze magineti.Uyezve, mumhando ina huru dzemagineti,SmCouyeNdFeB isingawanzo pasimagineti ane zvakanakira senge yakakwira magineti zvivakwa uye yakagadzikana kushanda yakagadzikana, iyo inogona kugonesa kushanda kwepamusoro Hall effect transducer kana sensor kuti isvike pakurongeka, kunzwa, uye kuyerwa kwakavimbika.Naizvozvo NdFeB uye SmCo vanoshandisa zvakanyanya seHall effect transducer magineti.
Nguva yekutumira: Sep-10-2021