Umahluko ophambili phakathi kweempawu ezibonakalayo zeesekethe zemagnethi kunye neesekethe zombane zezi zilandelayo:
(1) Kukho izinto ezilungileyo zokuqhuba kwindalo, kwaye kukho nezinto ezikhuselayo kwi-current. Ngokomzekelo, i-resistiveivity yobhedu yi-1.69 × 10-2Qmm2 / m, ngelixa i-resistivity yerabha imalunga namaxesha angama-10 aphezulu. Kodwa ukuza kuthi ga ngoku, akukho nto ikhuselweyo ngokuchasene nemagnethi efunyenweyo. I-magnetic permeability ye-bismuth, eneyona ndawo incinci yamagnetic, yi-0. 99982μ. Ukungena kwemagnethi yomoya yi-1. 000038μ. Ke ngoko umoya unokubonwa njengeyona nto iphantsi kwemagnethi yokungena. Ukufikeleleka okuhambelanayo kwemathiriyeli ye-ferromagnetic enokungena kakuhle kumalunga namandla esithandathu e-10.
(2)Okwangoku kukuhamba kwezihlwele ezihlawulweyo kumqhubi. Ngenxa yobukho bokuchasa umqhubi, amandla e-electrodynamic asebenza kwimiba ehlawulisiweyo kwaye asebenzise amandla, kwaye ilahleko yamandla iguqulwa ibe bubushushu. I-magnetic flux ayibonisi ukushukuma kwanoma yimuphi ubunzima, kwaye ayimeli ukulahlekelwa kwamandla, ngoko lo mzekeliso unobuqhophololo. Isekethe kunye nemagnethi yesekethe zibonakala zahlukene, kwaye nganye inento yayo engathandabuzekiyo yokuncamisa ukuqiqa ngaphakathi kwenqwaba. Lo mzekeliso uqhwalela ngenxa yokuphelelwa ngamandla. Isekethe kunye nesekethe yamagnetic ibonakala yahlukile, kwaye nganye inentsingiselo yayo yomzimba engabuzwanga.
Umjikelo wemagnethi ukhululekile:
(1) Akukho khefu kwisekethe yemagnethi njengakwisekethe; imagnethi ifumaneka kuyo yonke indawo.
(3) Iisekethe zemagneti phantse zisoloko zingekho mgca. I-ferromagnetic substance magnetoresistance ayikho emgqeni, i-gap yomoya imagnetoresistance iyangqamana. Umthetho we-ohm kunye nesililo sokungafuni kwesekethe yamagnetic edweliswe ngasentla ichanekile kuphela kuluhlu lomgca. Ngoko ke uyilo lokwenyani, ngokuqhelekileyo sebenzisa ijika leBH ukufumana indawo yokusebenza.
(2) Kuba akukho nto ingenakufikeleleka ngokupheleleyo, i-magnetic flux ayinyanzelwa, kuphela inxalenye ye-flux idlula kwisiphaluka esimiselweyo, kwaye enye isasazeke kwisithuba esijikeleze isiphaluka, esibizwa ngokuba yi-leakage, kwaye Ubalo oluchanekileyo kunye nomlinganiselo wokuvuza kunzima, kodwa akunakungahoywa.
Ixesha lokuposa: Mar-17-2022