Uyini inductance mutual?

Mutual lokungeniswa mkhuba esitholakala sebuningini amadivayisi kagesi. Ngokuvamile isimo, lapho umuntu ngokuqondile sinqwamana nabantu zako ekuphileni kwansuku zonke, kodwa musa ngisho bazi ngakho. Ake osekwenzekile yamuva, lapho ulwazi main yokudlulisela izindlela babe amasignali analog. Futhi manje cishe zonke zikagesi ziye idluliselwe digital ukushintshashintsha kwezwi izinhlobo. Iqiniso ukuthi "sibalo" kungcono laziwe kubo bonke. Kodwa uyazibuza, yini ngempela? Surely nye izindlu kusadingeka iselula olunezintambo isevisi i PBX analog. Uma uqhathanisa ukwenza kwe-yesimanje "izingcingo mobile" futhi "Oldies", lesi sifaniso ngokusobala aliwona esivuna yokugcina. Yizwa ku ngemuva kwengxoxo kuphazamisekile yezokusakaza noma ngisho "okungcono" izwi namanje zokuxhumana kothile - lokhu akusona isimanga. Lokhu kwenzeka ngoba ikhebuli ngocingo, izintambo abasondelene nomunye, ngakho kukhona lokungeniswa mutual emigqeni emibili. Esinye isibonelo labo onesigqi ukuchofoza ukuvela kokuthi izipikha TV noma izipikha zekhompyutha yakho, uma kukhona mobilka futhi ucingo. Ekugcineni, IDE-amakhebuli obudala 80 Abaqhubi esetshenziswa kuphela ingxenye yabo, kuyilapho ezinye 40 ukuvimbela imiphumela okuletha lokungeniswa mutual. Kunezibonelo eziningi, zonke yi akwenzi mqondo. Kubalulekile kuphela ukukhumbula ukuthi kuleli cala, yimuphi "crosstalk" - lena inductance mutual.

Ngokuvamile, leli gama libhekisela inqubo okuvela kuyo amandla electromotive (EMF) kwelinye babashayeli eduze ngesikhathi lapho izinguquko kwezinye ekhona Inani lamanje. Iningi umane alichaza lokungeniswa mutual a transformer. Injalo elula (icala ekhethekile), transformer yakhiwa ohlobo ezimbili nilimaza umnyombo efanayo kazibuthe. Lapho zamanje odabula wire Kolunye lwazo, kukhona emhlabeni kazibuthe. Ngenxa yalokho uvele ecucuza kazibuthe lingena yesibili ikhoyili umqhubi, ukudala EMF therein. Wabonakala zamanje eyenga, ngokwanele ukuvala okwatholakala ikhoyili, ukudala neketanga. Njengoba kwanda ukushuba yokucucuza kazibuthe luyanda kanye inductance mutual. Ukuze kuzuzwe izici oyifunayo (isib kahle) usebenzisa izixazululo ezahlukene: ekushintsheni ukucushwa kwe-circuit kazibuthe; indlela ekhethekile wenziwa le ohlobo emazombezombe futhi Ave inductance mutual kukalwa nge variometer.

Indlela kubonakaliswa ezibonelweni okukhulunywe ngaye ngaphambili kulesi sihloko? elula kakhulu: cishe kuzo zonke izimo (ngaphandle izingcingo mobile) zitholakala eduze babashayeli eziningana, okungenani eyodwa oludlula i kagesi. Ngenxa yalokho, kukhona amandla kazibuthe odala ecucuza kazibuthe. Lesi sakamuva, engena babashayeli eseduze eheha EMF kuzo, kanye neketanga ke, ngokuhambisana nomthetho we lokungeniswa kagesi, i notshwala zamanje. isiqondiso saKhe kunqunywa ngokusebenzisa kokubusa Lenz.

Mutual kabanzi ubunjiniyela yesimanje kagesi. Njengoba amanye imiphumela yayo engathandeki yabalwa ngaye ngaphambili kulesi sihloko, kunengqondo ukunikeza izibonelo ewusizo. Omunye namadivayisi amaningi owaziwa - yasendlini isimame amapayipi. Ngaphakathi kukhona transformer (ngokuvamile uhlobo toroid) nge sebuningini of terminals, ngamunye okuhambelana inani elithile voltage. Futhi, amanye amadivayisi ungathola isixazululo ezithakazelisayo - Ukukhipha kukagesi. Eqinisweni, lena transformer efanayo (ngezinye izikhathi photocoupler pair), kodwa hhayi ngokusebenzisa i- Coefficient ukuguqulwa. Ngenxa yalokho, kungenzeka ukwenza ecucuza kazibuthe ngokusebenzisa zokuxhumana izindlela eziningi, ukuhlinzeka ezingeni efanele yokuphepha kagesi. Ukukhiqizwa Isibonelo, davit.