Rakatumbuka Magetsi

Rakatumbuka zvemagetsi ano - ichangobuda ane mirayiridzo kusiyanisa nguva-uye simba. dzenzvimbo avo kuti siyana chete kukura, inonzi pulsating. In indasitiri uye muupenyu kakawanda kushandiswa rakatumbuka sinusoidal iyezvino.

Unoponesa DC kuna AC yemagetsi kunogona kuitwa sezvinotevera. Akaiswa yunifomu kunofambira mberi remagineti Coil kuti waya. With dzakafanana vachishandisa kutenderera Coil pamusoro akabatana kuti ari rinobva nekubudisa icharamba dzinosiyana zvikuru uye mirayiridzo. Somugumisiro, nomurayiro remagetsi induction, mumwe coils aumbwa shanduka mune mirayiridzo uye kwakakura pamusoro electromotive simba (EMF). Kana zvakadaro coils chokuita imwe remudunhu zvokunze, zvino isu kuwana rakatumbuka magetsi iyezvino.

Kana ndege yacho kutenderera coils anova perpendicular noruremekedzo kumunda akarongwa remagineti anopfuura therethrough ari rinobva nekubudisa - chikuru (Φ = Φmax), kumhanya yekupindurwa kwayo razero (ΔΦ / Δt = 0), sezvo achipfuura chinzvimbo anotungamirira chimurenga pitikoti pamusoro mitsetse simba, pasina kuyambutswa pavo. Nokudaro, induction electromotive simba kuumbwa mune coils anova razero (E = 0).

Kana coils Ndege zvinofambirana mitsetse simba, zvinoyerera rakapinza payo, akaenzana razero (Φ = 0), mwero nokuchinja kunonyanyisa yaro panzvimbo ino ((ΔΦ / Δt) Max), sezvo coils conductors vari kutamira perpendicular kuti mitsetse simba.

Electromotive simba yomuka kana ichi muna loop, ane kunonyanyisa ukoshi (E = Emax). Pamusoro mamwe vachishandisa kutenderera ichitenderera nokukurumidza shanduko nekubudisa chichipinda coils kuchawedzera; saka, EMF mu kwakakwana ukoshi kuchawedzera kubva 0 kusvika Emax. Saka, ufanane emf akanyengera iri kutenderera Coil paminiti chimurenga Kuchinja kubva yayo -Emax kusvikira + Emax.

Us rakavhurika coils waya uye pamurume kuna oscilloscope. Kana coils rotates ari remagineti, kuti oscilloscope achaita kunyora ano zvose kuchinja ari, kuti izvo vachatongwa, uye yekupindurwa electromotive simba iri Coil panguva imwe chimurenga.

The kuitika zvakapararira munyika Coil panguva yaro dzakafanana kunorapwa yunifomu remagineti, sezvinoratidzwa waveform dzinosiyana sinusoidally. Izvi kuitika anonzi rakatumbuka sinusoidal.

Nguva iro electromotive simba anoita chimwe oscillation, yainzi nguva AC.

Letter rokuti oscillation nguva - T. Kuwanda oscillations por 1 rechipiri - kuitika kakawanda, izvo akasarudzwa netsamba f. chikwata chacho nechiyero - Hertz (Hz):

d = 1 / T, kana T = 1 / f.

Kana kukosha EMF panguva imwe zvemasanga nguva runotaurwa E (kwayo nguva imwe kukosha), uye zvikuru ukoshi (nhamba) - kuburikidza Emax, mutemo achingoratidza nedoro, kubvira nguva nenguva, kungaratidzwa sezvo zvinotevera mashoko panyaya imwe sinusoidal kuitika:

E = Emax˖sin (2 / T) t.

Munyika dzakawanda, maindasitiri uye chokugara kushandiswa rakatumbuka Magetsi ane kakawanda 50 Hz, ya munguva 0.02 wechipiri.

Preparation of rakatumbuka zvemagetsi pari kubva zvokuimba simba rinoitwa pachishandiswa anokosha michina, makatumidzwa emagetsi. Nheyo basa ravo - mutemo remagetsi induction. Chinonyanya nyore oscillator redunhu anogona achimiririrwa furemu kutenderera akabatana mune remagineti ane electromagnet kana zvachose magineti. Kana iwe tenderera pamatanda inoumbwa ne shanduka electromotive simba mairi. By unobva furemu kuti remudunhu zvokunze, isu kuwana rakatumbuka magetsi iyezvino. An alternator ane simba rinonzi magnetic gadziriro mira uye kutenderera Coils kuvakwa Kazhinji.

Zvinenge vose jenareta windings (chinotsigisa) wakaisirwa mira uye magineti gadziriro (inductor) iri zvayaitenderera paguyo. Usingazungunuke chikamu jenareta anonzi stator, uye chinjwa - rotor.