Iimagnethi zeRing zisetyenziswa njani kwiiSensors nakwiiMagnetic Assemblies?

Xa sele usebenza ngee-magnetic sensors, ukhawuleza uqonde ukuba i-magnet ayiyonto ilula—yinto ethatha isigqibo phakathi kwe-sensor egcina ukuchaneka kwayo ixesha elide kunye neyo eqala ukushukuma emva kwemijikelo embalwa nje.

Iimagnethi zeringi ziyindlela eqhelekileyo kwezi zicelo, kwaye ngesizathu esihle. Kodwa ukuzenza ngokuchanekileyo—ingakumbi xa ufuna imveliso—kuthatha okungaphezulu kokukhetha ubungakanani kwiphepha ledatha.

Ndikhe ndabona iinjineli zicacisa i-ring magnet egqibeleleyo ephepheni, kodwa zadibana nemiba yokudibanisa kuba ipateni ye-magnetization ayihambelananga nengqiqo yokufunda kwe-sensor. Masihambe ngayo.izisombululo zemagnethi yeringi yeenzwa

 

Ukuthatha Okukhawulezileyo

Ilungele ii-encoders kunye nee-sensors zesikhundla
Funa ulawulo oluchanekileyo lwemagnetization
Ubukhulu buchaphazela ukuchaneka kwenkqubo
Idla ngokwenzelwe iindibano

 

Kutheni iiRing Magnets zisetyenziswa kwiiSensors

Xa ujonga kuqala, imagnethi yendandatho ibonakala ilula. Kodwa loo mbombo ingaphakathi itshintsha yonke into.

Intsimi yeMagnetic eZinzileyo

Nantsi inguqulelo ebhalwe ngokutsha egcina intsingiselo yokuqala ngelixa itshintsha ulwakhiwo kunye namagama:

Xa kuthelekiswa neemagnethi zediski eqinileyo, iimagnethi zeringi zibonelela ngolawulo oluphezulu kunye nokuqikelelwa kwangaphambili phezu kwentsimi yemagnethi. Ibhore yazo ephakathi ivumela ukusasazwa kweflux efanayo, uphawu olubalulekileyo kwiinzwa zempembelelo zeHall kunye nezinto zemagnetoresistive ezifuna iziphumo ezizinzileyo neziphindaphindwayo.

Kwii-encoders ezijikelezayo, umzekelo, imagnethi yendandatho ye-multipole ivelisa ii-poles ezitshintshanayo ezikumntla-kumzantsi ezijikeleze umjikelo wayo. I-sensor ifunda ezi nguqu ukuze ibone indawo ye-angular. Ukuba intsimi ayilingani, i-encoder yakho ilahlekelwa kukuchaneka.

Ukuhlanganiswa okuNcinci

Isithuba sihlala sincinci kwiindawo zokudibanisa iisensor. Ngemagnethi yeringi, ungayifaka ngqo kwishaft ngelixa usenendawo ngaphakathi kwezinye iindawo. Awungongezanga nje izinto ezongezelelweyo—wakha imagnethi kwisakhiwo somatshini.

Yiyo kanye loo nto iimagnethi zeringi zisetyenziswa kuyo yonke indawo—ukusuka kwiisensa ze-throttle position kwiimoto ukuya kwiimoto ze-servo zemizi-mveliso. Zisombulula ingxaki yokubekwa ngaphandle kokufuna uyilo olutsha olupheleleyo lwendibano iyonke.

Xa usetyenziso lufuna ukusebenza okuthembekileyo kwindawo encinci, izisombululo ze-ring magnet zeesensors zihlala zilona khetho lusebenzayo.

Izicelo Eziqhelekileyo

Iimagnethi zeringi zibonakala kwiindawo ezininzi kunokuba abantu abaninzi becinga. Nazi ezimbalwa apho iinkcukacha zibaluleke khona.

Iikhowudi

Kwii-encoders zemagnethi, iimagnethi zeringi zezona ziguqula intshukumo yokujikeleza ibe ziisignali zedijithali. Ngokwesiqhelo, imagnethi itsalwa ziimagnethi ngeepayara ezininzi zeepali, kwaye i-sensor ibala utshintsho njengoko imagnethi ijikeleza.

Umceli mngeni apha kukuchaneka kwemagnetization. Ukuba iipali azilingani ngokulinganayo, isisombululo se-encoder yakho siyawa. Kwizicelo ezichanekileyo, ujonge izixhobo zemagnetization ezenziwe ngokwezifiso—hayi ezingenanto zingekho eshelufini.

Iinkqubo zokuZenzekelayo

Kwimigca yokuhlanganisa ezenzekelayo, iimagnethi zeringi zisetyenziswa kwiinkqubo zempendulo yesikhundla, iirobhothi, kwaneeswitshi zokhuseleko zemagnethi. Ezi ndawo azixoleli. Ukungcangcazela, ukuguquguquka kobushushu, kunye nemimandla yemagnethi elahlekileyo evela kwizixhobo ezikufutshane konke oku kunokuchaphazela ukusebenza.

Siye safumana abathengi abatshintsha iimagnethi zeringi eziqhelekileyo ukuze basebenzise iinguqulelo ezisebenza ngamandla aphezulu ukuze bagcine iinkqubo zabo zizinzile kufutshane nezixhobo zokuwelda. Le yenye yezo nkcukacha ezingabonakali kwinqanaba leprototype kodwa ziba ngundoqo kubungakanani.

Xa kubandakanyeke iimfuno ezilula zentsimi ye-axial,usetyenziso lwemagnethi ye-cylindricalzikwasetyenziswa rhoqo, ingakumbi kwiisensa ezincinci apho kungadingeki ulungiselelo lweringi.

Iinkcukacha eziphambili

Xa sithetha ngeemagnethi zeringi zeenzwa, ubukhulu obuthathu bubaluleke ngaphezu kwezinye.

OD / ID / ubukhulu

Ububanzi bangaphandle bumisela ukuba zingakanani izinto zemagnethi onazo. Ububanzi bangaphakathi buchaphazela indlela imagnethi ekhwela ngayo kwi-shaft. Kwaye ubukhulu buchaphazela amandla entsimi kumgama wokufumanisa we-sensor.

Apho izinto ziba nzima khona zii-tolerances. I-ring magnet engasebenzi kakuhle kwi-ID ayihlali kakuhle kwi-shaft. Ukuba ikhululekile, ufumana i-runout. Ukuba iqine kakhulu, usengozini yokuqhekeka i-magnet ngexesha lokuhlanganiswa. Sihlala sichaza ii-tolerances ukuya kuthi ga kwi-±0.05mm ukuze sifumane usetyenziso oluchanekileyo, kwaye sijonga iisampulu ngee-calipers ngaphambi kokuba sivume imveliso.

Ukwenziwa kwemagnethi

Kulapho uninzi lomzamo wobunjineli luhamba khona.

Iimagnethi zeringi zinokutsalwa ngemagnethi ngeendlela ezahlukeneyo:
- I-Axial: iipali ebusweni obuthe tyaba
- Ububanzi becala: ukusuka emantla ukuya emazantsi ukuya kutsho kububanzi obuphakathi
-I-Multipole: iipali ezitshintshanayo ezijikeleze umjikelo

Kwi-encoders, i-multipole magnetization iyinto eqhelekileyo. Kodwa inani lee-pole kufuneka lihambelane nesisombululo se-sensor. I-ring ye-32-pole ayizukusebenza ne-sensor elindele utshintsho lwe-16 ngokujikeleza ngakunye ngaphandle kokuba ulungisa i-firmware okanye i-signal conditioning.

Sikwabone iiprojekthi zilibaziseka ngenxa yokuba icala lemagnetization lalingalunganga ne-orientation ye-sensor. Yinkcukacha elula, kodwa kulula ukuyiphosa xa kugxilwe kubungakanani kunye namandla okutsala.

 

Izinto Eziqwalaselwayo Kwimveliso

Uku-odola iimagnethi zeringi kwiindibano zesensor ngumdlalo owahlukileyo kunokufumana iimagnethi zokubamba umgangatho wevenkile. Ukunyamezela iimpazamo kuncinci kakhulu, kwaye iindleko zokungaphumeleli zidla ngokuba phezulu kakhulu.

Iprototype eneemeko zokusebenza zokwenyani

Sisoloko sicebisa ukuba kuvavanywe iisampulu zemagnethi kwindawo ye sensor yokwenyani, kunye ne-electronics yokwenyani yokufunda. Imagnethi yeringi esebenza kakuhle ebhentshini inokusebenza ngendlela eyahlukileyo xa ifakiwe kufutshane neepleyiti zokufakelwa zentsimbi okanye iintambo zombane.

Cacisa ngokucacileyo ipateni yemagnetization

Umzobo onemilinganiselo awanelanga. Kufuneka uchaze inani leepali, ulwalathiso lweepali, kunye nempazamo ye-angular evumelekileyo. Ukuba ezi azibhalwanga, ushiya indawo yokutolika—kwaye kulapho kwenzeka khona ukungangqinelani.

Cinga ngobushushu kwangethuba

Iimagnethi zeringi eziqhelekileyo zihlala zisiya kwi-N35SH okanye kwiindidi ezifanayo zobushushu obuphezulu xa indawo idlula i-80°C. Ukuba isensor yakho ifakwe kufutshane nemoto okanye kwindawo yenjini, i-N42 eyaneleyo yokulinganisa iprototyping inokungaphumeleli phantsi koxinzelelo lwenqanaba lemveliso.

Buza imibuzo efanelekileyo

Umthengisi wemagnethi olungileyo uza kukubuza ngohlobo lwesensor yakho, indlela yokufaka, kunye nendawo osebenza kuyo. Ukuba abayenzi loo nto, loo nto ithetha ukuba abenzi bemagnethi basixelele ukuba “yimagnethi yeringi nje” de sadlula kwisicelo saza saqonda ukuba bafuna imagnethi ye-multipole ene-±2-degree accuracy.

 

Izinto Ezimbalwa Okufanele Uziqaphele

Ukuphatha kunye nokugcina
Iimagnethi zeringi—ingakumbi iidayamitha ezinkulu—zinokuba namandla ngendlela emangalisayo. Sizibonile ziqhawuka zisuka kwiimitha ezininzi ukusuka apho, zonakalisa zombini iimagnethi kunye naye nabani na okufutshane. Ukuze ufumane ubungakanani bemveliso, kuyafaneleka ukucwangcisa indlela eziza kuphathwa ngayo kwaye zifakwe iimagnethi emva kokuhlanganiswa.

Ukukhetha ukugquma
Ukufakelwa kwe-nickel lukhetho oluqhelekileyo, kodwa ukuba i-sensor assembly yakho ichaphazeleka kumswakama, i-salt spray, okanye iikhemikhali zokucoca, kusenokwenzeka ukuba uya kufuna i-epoxy okanye i-raber coating. Sifumanise oku emva kokutshintsha i-batch ebolileyo—inyanga ezintandathu nje kuphela sisetyenziswa kwindawo yokusebenza ngaphandle.

Ukufakelwa kwemagnethi emva kokuhlanganiswa
Kwiiringi ze-multipole, ngamanye amaxesha kungcono ukwenza i-magnetize emva kokuba i-magnet ifakiwe kwi-assembly. Oku kuthintela iingxaki zokulungelelaniswa ngexesha lokuthunyelwa kwaye kuqinisekisa ukuba ii-poles zikwindawo kanye apho kufuneka zibe khona xa kuthelekiswa ne-sensor.

 

Iingcinga Zokugqibela

Iimagnethi zeringi ziyinxalenye encinci yendibano yesenzi, kodwa aziyonto ithengiswayo. Umahluko phakathi kwesenzi esebenza ngokuthembekileyo nesinye esingasebenzi kakuhle kwintsimi udla ngokuxhomekeke ekubeni imagnethi ichazwe kakuhle na—nokuba inkqubo yokuvelisa ikwazile na ukuyifezekisa into eyiliweyo.

Ukuba ufuna imveliso, zinike ixesha lokuvavanya iipateni zemagnetization, uqinisekise ubungakanani, kwaye udibanise umgangatho wemagnethi nendawo osebenza kuyo. Umzamo wokuqala uyaphumelela okokuqala xa uthumela ibhetshi ngaphandle kokusilela kwentsimi.