Hysteresis magnetic: Description of guryaha, codsiga wax ku ool ah

Inta badan hysteresis magnetic, ferroelectric, firfircoon, laastikada. Waxaa sidoo kale laga helaa bayoolaji, sayniska ciidda, dhaqaalaha. Iyo nuxurka in qeexidda tani waa ku dhawaad isku mid. Laakiin maqaalka hadli doonaa waxa ku saabsan yahay magnetic, aad wax dheeraad ah oo arrintan ku saabsan arrin baran doontaa, waxay ku xiran tahay waxa iyo markii muujiyey. Tani waxay ifafaale ayaa la bartay dugsiyada sare ee wacyi farsamo, manhajka dugsiga kuma jirto, sidaa darteed qof kasta oo aan og yahay waxa ku saabsan.

hysteresis magnetic

Waxaa la qiyaasi karin iyo karin ku tiirsanaanta magnetization oo ah walaxda (oo waa, sida caadiga ah, magnetically ferromagnetic) ka dibadda field magnetic. Haddii arimahan joogta ah isu bedelaya - hoos ama kordho. Jidka Common jiritaanka hysteresis - waa joogitaanka ugu yaraan kara thermodynamic gobolka deganayn oo xasilloon, oo waxaa jira gudubka karin u dhaxeeya. Hysteresis - waxay sidoo kale waa muujin of hanuuninta magnetic of kala guurka wajiga of nooca 1aad. Marka guurka ka mid waji kale ku jira ay sabab u tahay dalalka metastable. Feature - garaaf, oo la yidhaahdo "loop hysteresis". Mararka qaarkood waxa kale oo loo yaqaan "qalooca magnetization."

loop hysteresis

Shaxda ee M by N loo arki karaa:

1. Laga soo bilaabo eber gobolka, kuna waari dhexdeeda M = 0 iyo H = 0, korodhka la sii kordhaya N iyo M.
2. Marka berrinka u korodho, magnetization uu noqdo mid ku ool ah si joogto ah iyo si siman u qiimo robab ah.
3. Iyada oo hoos H isbedel bedelka dhacdaa, laakiin marka n = 0, M magnetization ma eber siman doono. Isbeddelkan ayaa waxaa laga arki karaa on qalooca demagnetization ah. Marka N = 0, M qabanayaa qiimaha magnetization haraaga ah.
4. Iyada oo la kordhiyo bareeg ka H -lim ... HM + beddel magnetization weheliyaan qalooca saddexaad.
5. Dhammaan saddex gooladaha sharaxaya geedi socodka ay ku xidhan yihiin iyo foomka nooc ka mid ah loop. Waxa ay ahayd tii qeexayaa ifafaale hysteresis ka - geeddi-socodka magnetization iyo demagnetization.

tamarta magnetizing

loop waxaa loo arkaa in ay ku dhufo oo kiiska halkaas oo saacididoono H1 duurka jooga, kuwaas oo codsatay in dambe oo hore tilmaamaha isku mid ma aha. Sarraysayna waxaa lagu tilmaamay loop a, taas oo la mid ah ka mid ah geeddi-tartiib ah dib magnetization. Marka ay dhacaan ilaalinta ee xiriirka magaabo-hoganaya dhaxeeya qiyamka N iyo M lagama maarmaan tahay in ay bixiyaan si ay xaqiiqada ah in magnetization ama demagnetization dhacdaa baaqday ee M N. dareenka Oo waxay keenaysaa in xaqiiqda ah in tamarta oo dhan oo la helay waxyaabaha ferromagnetic inta lagu guda jiro magnetization, lama siiyo si buuxda marka la kaadinayo wareegga demagnetization. Iyo farqiga this waa dhan in kulaylku ferromagnetic. Iyo loop ku hysteresis magnetic waa haddii ay taasi ku sinnayn.

Foomka loop a

qaab loop ku xiran tahay oo xuduudaheedu badan - magnetization ka xoog beerta .. khasaaraha Helitaanka, iwm Sidoo kale saamayn badan Halabuurka kiimikada ee ferromagnet ah, oo ay dawladda dhismaha, heerkulka, dabeecadda iyo qaybinta cilladaha ah, joogitaanka nidaaminta (kaamerada, kaamerada magnetic, farsamo). Sidaa darteed, hysteresis ku ferromagnetic la bedeli karaa by hoosaysiiyo qalabka machining. Laga soo bilaabo isbedelka this dhan sifooyinka mid ah waxyaabaha la.

hysteresis khasaaro

Inta lagu guda jiro dib u noqoshada magnetization firfircoon ee ferromagnet a beerta ah talantaalli magnetic arkay khasaaraha. Waxaa intaa dheer, waxay u taagan yihiin oo keliya qayb yar oo yar oo ah wadarta khasaaraha magnetic. Haddii siddooyinkuna waa height isku mid ah (qiime isku mid ah ugu badnaan magnetization M), qaab loop waa ma guurto ah guud firfircoon. Tan waxa u sabab xaqiiqada ah in dhammaan khasaare cusub ku daray. Tani firfircoon khasaaraha caadi ahaan la xidhiidha ee hadda, ee Eddy nafwaayay magnetic. Isku soo xooriyoo, waxaa soo baxday khasaaraha hysteresis arrin muhiim ah.

ferromagnets Single-domain

Haddii ay sidaa tahay, haddii qayb ka ah waxaa ka mid ah size kala duwan, habka soo baxa wareeg. Tani waxay dhacdaa ay sabab u tahay xaqiiqada ah in formation of domains cusub waa khasaari eego tamarta. Laakiin qayb ka hortagtaa anisotropy nidaamka rogista cajaladda (magnetic). Wuxuu yeelan karaa asal ahaan kala duwan - sameeyay baraf dhacaan sabab u tahay stress laastikada, iwm) .... Laakiin, iyadoo la kaashanayo anisotropy ee magnetization ee la hayo beerta gudaha. Waxaa sidoo kale loo yaqaan oo duurka ku ool ah oo anisotropy ku magnetic. Oo hysteresis ku magnetic dhacaa sabab u tahay xaqiiqda ah in magnetization la bedelo laba jiho - Weeraryahanka iyo gadaal. Inta lagu jiro hal domain dib magnetization ferromagnetic ka qaadataa meel ka bootin yar. The M dulinka magnetization waxaa iska dhigeen H. beerta Oo weliba, wareeg ah waxaa laga yaabaa in labis ama nonuniform.

ferromagnetic multidomain

Waxay qalooca magnetization ku salaysan yahay si la mid ah, laakiin in geedi socodka way kala duwan yihiin. Marka dib u dhacdaa barakaca ah ee xuduudaha domain ah. Sidaa darteed, mid ka mid ah sababaha hysteresis waxaa laga yaabaa in barakac ah xuduudaha u dhac iyo bootin karin. Mararka qaarkood (haddii ferromagnetic beerta halkii weyn) hysteresis magnetic go'aamiyo dhimaal koritaanka iyo nuclei la xirrira. Waxaa ka dhismeedka uurjiifka domain, kuwaas oo la aasaasay ka mid ah maaddooyinka ferromagnetic.

Fikradda ah hysteresis

Waa in la dhasha maskaxda ku haysaa in ifafaale hysteresis magnetic sidoo kale waxay dhacdaa marka qoqobada H beerta, ma aha oo kaliya marka ay ku beddeshay calaamad iyo magnitude. Waxaa lagu magacaabaa hysteresis iyo rogista cajaladda magnetic u dhiganta beddelo jihada magnetization M in la beddelo jihada field magnetic H. bixidda hysteresis wareeg ah waxaa sidoo kale lagu arkay inta lagu jiro wareeg ah qaraabo muunad imtixaanka si H. garoonka go'an

qalooca magnetization ayaa sidoo kale lagu gartaa dhismeedka domain magnetic. Qaabdhismeedka kala duwan yihiin marka la kaadinayo magnetization iyo magnetization nidaamka dib u noqoshada. Isbedelada ku xiran tahay in derbiyada domain waa wada dhaqdhaqaaqay, ka saamaynta duurka dibadda ah magnetic. Absolutely wax kasta qaban karto oo dhan hababka kor lagu sharaxay, ferromagnetic u tarjumay galay gobolka ruxanaya iyo sabab ah in uu jiro hysteresis magnetic.

Qaado account in hysteresis ay ku xidhan tahay oo xuduudaheedu badan galay. isbedel magnetization The sarkhaansan arrimood dibadda - heerkulka, walaacyada laastikada oo sidaas daraaddeed waxay dhacdaa hysteresis. Haddaba waxaa jira ma aha oo kaliya hysteresis magnetization ah, laakiin sidoo kale dhammaan dadka guryaha on taas oo ay ku xiran tahay. Sida laga arki karo halkan ka, ifafaale hysteresis ah oo laga dheehan karo ma aha oo kaliya in magnetization mid ah waxyaabaha la, laakiin sidoo kale la hababka kale ee jirka si toos ah ama si dadban xidhiidh la leh.