I-inductance iyindawo yesekethe ye-elekthronikhi evimbela isimanje ekushintsheni.Kubalulekile ukuqaphela incazelo engokomzimba yegama elithi "ushintsho," kancane njenge-inertia kumakhenika.Ikhoyili ye-inductor isetshenziselwa ukugcina amandla endaweni kazibuthe, futhi uzothola lesi simo sibaluleke kakhulu.
Ukuze uqonde umqondo we-inductance, izinto ezintathu zomzimba kufanele ziqondwe:
1. Lapho umqhubi ehamba ngokuphathelene nensimu kazibuthe, amandla kagesi afakwa kumqhubi.Lokhu kukhiqiza amandla e-electromotive enziwe kuzo zombili iziphetho zikakhondakta.
2. Uma i-conductor isendaweni eshintshayo kazibuthe, i-current induced ikhiqizwa ngaphakathi kwe-conductor.Njengasesimeni sokuqala, kukhona amandla e-electromotive enziwe kumqhubi.
3. Uma i-electric current igeleza ku-conductor, insimu kazibuthe ikhiqizwa eduze kwe-conductor.
Umthetho kaLenz.Amandla e-electromotive akhangiwe kusekethe inani elibonakalayo elichaza isekethe ukuthi ikhansele noma inxephezele ngokwanda noma ukuncipha kwayo.
Ngokusekelwe kulo mgomo, kuzoba nemiphumela elandelayo:
A I-current ecushiwe izokhiqizwa noma ngabe i-conductor nenkundla kazibuthe ziyanyakaza ngokuhlobene noma inkambu kazibuthe iyashintsha.Isiqondiso se-current induced siphambene nendawo yamagnetic yasekuqaleni.
B Uma i-current in a conductor ishintsha, inkambu kazibuthe ejatshuliswa i-current izoshintsha.Ushintsho endaweni kazibuthe luzoheha entsha yamanje ukuze ivimbele ushintsho lwamanje lwangempela.
C Amandla e-electromotive abangelwa ushintsho lwamanje aphambene ne-polarity yamandla akhiqiza uguquko lwamanje.
Iyunithi ye-inductance yi-heng E (H).Uma i-current in conductor ishintsha ngesilinganiso se-IA/s, amandla e-electromotive we-IV azongeniswa, khona-ke inductance ye-conductor izoba ngu-1H.
Lokhu kuhlobana kungavezwa njengokuthi :V=L(δ I/ δ T), lapho u-V engamandla e-electromotive, V;L yi-inductance, H;U-R umsinga, A;T yisikhathi, s;△ wushintsho oluncane.
Le yunithi ifanele ama-inductors asetshenziswa emigodini yokuhlunga eqhubekayo enikwa amandla amandla e-DC, kodwa inkulu kakhulu ngobukhulu ku-RF kanye namasekhethi.Amayunithi we-milliheng (mH) kanye ne-microheng (μH) avame ukusetshenziswa kulawa masekethi.
Ubudlelwano bokuguqulwa phakathi kwabo bulokhu: 1H=1000mH=1000000μH
Ngakho :1mH = 10-3h, 1μH = 10-6h
Kukhona into ephawulekayo ebizwa ngokuthi i-self-induction: lapho i-current in the circuit ishintsha, insimu yamagnetic ejatshuliswa yi-current iphinde ishintshe, futhi ukuguqulwa kwendawo kazibuthe kubangela i-current reverse evimbela i-current yasekuqaleni.
Lo msinga owenziwe ukhiqiza amandla e-electromotive, abizwa ngokuthi i-reverse emf.Njengezinye izinhlobo ze-inductance, amayunithi e-self-inductance angu-E namayunithi ayo asizayo.
Nakuba umqondo we-inductance ubhekisela ezinhlobonhlobo zezigigaba, uma usetshenziswa uwedwa ngokuvamile ubizwa ngokuthi ukuzingenisa ngokwakho.Ngakho-ke, ngaphandle uma kucaciswe ngenye indlela (i-mutual inductance, njll.), inductance kulesi sahluko isho ukuzitika ngokwakho.Khumbula nje: kunokuningi kuleli gama kunalokho okuvame ukuqondwa.
Isikhathi sokuthumela: Jan-11-2020