Kafuwar zamani lantarki injiniya - sabon abu na electromagnetic shigar da

The sabon abu na electromagnetic shigar da a cikin wutar lantarki injiniya ne a gindi. An empirically gano baya a 1831 da Turanci likita Michael Faraday. Duk da yake shi an san shi da cewa tsakanin wani shugaba da kuma wani maganadisu dake kusa da hulda faruwa. An yi imani da cewa ajali cajin mu'amala via wani lantarki filin, da kuma su motsi (na yanzu) da aka bayyana ta a Magnetic filin. Duk da haka, da hange na m amfani da wannan ilimi don Faraday ta gwaji sakamakon kasance sosai m. A gaskiya, da masanin kimiyyar wanda ya gano sabon abu daga electromagnetic shigar da, alama farkon kayan yau da kullum na zamani lantarki aikin injiniya.

Experience kanta shi ne kyawawan sauki: mashaya m maganadisu fara motsa, kuma aka zabi a tsakiyar sarari tsakanin jũya na nada. Karshe nada aka haɗa ta haska na'urar auna kananan dabi'u na halin yanzu da kuma irin ƙarfin lantarki.

An lura cewa, a lokacin da motsi maganadisu galvanometer allura deviates daga sifili batu. Kuma da sabawa ya fi girma, maganadisu da aka koma mafi maida. Idan muka tuna cewa yana da biyu iyakacin duniya Lines da kuma filin ƙarfi, ya zama a bayyane dangantaka tsakanin Magnetic juyi da kuma jawo halin yanzu halitta.

Tun da yanzu ba zai iya spontaneously bayyana a cikin kewaye, da ma'ana ƙarshe na bayyanar da electromotive karfi da aka sanya (EMF), wanda, bi da bi, ba ka damar sami halin yanzu. Faraday ta dokar shigar da yale mu mu bayyana cewa tasirin da shugaba Magnetic filin sãɓãwar launukansa a lokacin ne cikin hanyar canza lantarki filin da kuma, idan rufaffiyar kewaye halin yanzu.

The sabon abu na electromagnetic shigar da yarda da shi don yin sauyi Tsayawa akan matsayin cewa sa da lantarki filin iya zama ba kawai zargin amma kuma wani mai sãɓãnin Magnetic filin. Daga baya an tsara hakan. Saboda haka, Faraday ta dokar da electromagnetic shigar da, ya furta cewa: Halicci Magnetic filin EMF ne kai tsaye dogara a kan kudi na canji na Magnetic juyi. A ƙarfi daga cikin halin yanzu generated da rufaffiyar madauki da aka lasafta bisa ga Ohm ta dokar.

The sabon abu na electromagnetic shigar da shi ne halayyar ba kawai ga shugaba, amma har ga m conductive jikinsu. Saboda haka, canza Magnetic filin samar a madugun kauri (karfe farantin da sauransu.) Eddy igiyoyin. Sun sa maras so dumama, don haka da hanyoyi daban-daban amfani da su kawar da su (a cikin gidajen wuta farantin laminations na lantarki karfe). Ka lura da cewa a wasu na'urorin, Eddy igiyoyin ake amfani (Disc lissafin kudi counters).

Ba da da ewa bayan, a 1833, da likita E. Lentz jagoranci mai mulkin, a kan tushen da wanda, jawo emf samar da wani halin yanzu na irin wannan shugabanci, domin su kau da hanyar da ya bayyanar. Ga misali: canza Magnetic filin yanã a halin yanzu a cikin shugaba. An tsara don haka da cewa da kansa Magnetic filin (wanda shi ne yanzu a kusa da na yanzu-dauke conductors) counteracted tushen.

The sabon abu na electromagnetic shigar da su yarda su ci gaba da lantarki injiniya to ta halin yanzu jihar. Yana da wuya su gabatar da wani cikakken jerin kayan aiki da shi yana amfani da. Alal misali, aikin janareto a ikon shuke-shuke dogara ne a kan wannan sabon abu. Duk da haka, da tsara damar zane ya halartar wani gagarumin canji tun da Faraday, duk da haka, babban manufa kasance iri guda: Lines na Magnetic filin rarraba da high mita halin yanzu kade windings, sakamakon wani electromotive karfi da kuma, idan rufaffiyar madauki wutar lantarki. Bugu da ƙari kuma janareto da kuma Motors, shigar da sabon abu da ake amfani, misali, a cikin gidajen wuta.