Yini resonance imisinga

Lapho eseyinsizwa efundela ezomthetho eziyisisekelo zokubala emkhakheni we-Electrical ngesinye isikhathi ngempela ibhekwa resonance imisinga kanye voltages. Lesi senzakalo esivela ezifundeni AC futhi kungaba engathandeki ezidinga nabo ku-akhawunti e sekulingisa namandla usuke izifunda futhi ewusizo.

Ngokwesibonelo, resonance yesifunda AC ngokuvamile sisetshenziswa umsakazo: ubukele oscillation wesifunda esekelwe zinamandla resonance, kuvumela izikhathi eziningana indlela abangenza ngayo isignali amandla umsakazo ongaphakeme, kusukela ngenxa ukuguqulwa "capacitance-inductance" kuyinto ukukhula ngempumelelo amagugu ukucindezeleka.

Wathi oscillation wesifunda - kuyinto sokuqonda indlela wamanje resonance futhi (noma) ukucindezeleka. Kuyinto avaliwe wesifunda kagesi ehlanganisa capacitor exhunywe parallel (C tank) futhi usebenzisa ikhoyili enjani (inductance L). Kuzo ngenqubo "uzotshala" zamandla capacitance zasendle kagesi e kazibuthe kukhona inductance self-zokucisha (ngenxa yokuba khona we resistive ingxenye R) ekushintshashintsheni imvamisa ezithile.

Ngo resonant imodi wesifunda ukumelana ukudlula ingxenye zamanje asebenzayo emelelwa R. Kukhona resonance kuphela zamanje kanye voltage resonance. Cabangela izici zabo.

Resonance zamanje kwenzeka wesifunda ngo parallel capacitor esitshalweni kanye lekhoyili, okuyinto izilinganiso akhethiwe ukuze samanje C no L elamanje. Ngenxa «CL» ukubaluleka wamanje yesifunda ingaphezu kwe neketanga Imininingwane.

Umgomo we operation simiswe ngalendlela lelandzelako: at amandla up, epholisayo icala ekuqongeleleni (a okuzisholo supply voltage). Ngemva kwalokhu kwanele ukuba unqamule omthombo niqede ukujikeleza kuya wesifunda ukuze kuqaliswe inqubo sokukhishwa lekhoyili. Ukudlula wamanje ngokusebenzisa uphehla kazibuthe kanye edonsa amandla self-lokungeniswa electromotive, zamanje oppositely iqondiswe. Inani layo esiphezulu kufinyelelwe ngesikhathi sokukhishwa ephelele capacitor. Ngakho, lokhu kusho ukuthi amandla wonke amandla zanqwabelana amandla kazibuthe uguqulwa inductance. Nokho, ngenxa self-lokungeniswa ikhoyili izinhlayiya icala imisiwe.

Kusukela counterflow kusukela capacitor akasekho (yena isiphelile), iqala kwenzeke agcwalisiwe, kodwa nge polarity ezahlukene. Ngenxa yalokho, bonke ikhoyili nkambu iguqulwe lokukhokhisa capacitor futhi inqubo eziphindaphindiwe. Ngenxa yokuba khona yangaphakathi resistive ingxenye R senzeka yaphela kancane kancane iyehla iyenyuka. Ngakho, i-resonance zamanje wenziwa.

Resonance ukucindezeleka kwenzeka ngesikhathi uxhumano uchungechunge Resistor R, a L ikhoyili capacitor C. Isici esibalulekile Kuyaphawuleka ukuthi voltage ugesi ingaphansi kwe-capacitor kanye lekhoyili (at element ngayinye ngokwehlukana), kodwa lamanje alinganayo inakekelwa. Ngaphezu kwalokho, lo voltage kanye zamanje yilezi isigaba. Isimo esiyinhloko ukuvela kanye nokugcinwa le nqubo - le nokulingana exhasa futhi capacitive reactance. Ngakho, impedance kutholakala sikhuthele.

Ukuze sithole amagugu ephumelelayo voltage phezu kwekhoyili futhi capacitor asetshenziswa umthetho Ohm sika. Uma kwenzeka-ke ilingana umkhiqizo lwamanje ikhoyili le reactance exhasa (U1 = IX1). Ngenxa yalokho, yamanje capacitor kufuneka iphindaphindwe capacitance (U2 = IX2). Kusukela ngo uchungechunge uxhumano izakhi lwamanje, futhi resonance X1 = X2 voltage yonkana inductance kanye capacitance bayalingana. Ngakho, okwandisa yezingxenye esisheshayo, ongayifinyelela nokwanda okuphawulekayo kwamandla U1 U2, ngenkathi ukulondoloza izindinganiso njalo umthombo EMF. Le ndawo eyinhloko lokusebenza - ubunjiniyela umsakazo.