Resistor - into esisiseko elektroniki

Resistor - i element elula eesekethe radio-elektroniki, ukuba ipropati ukuba sixhathise ayahamba kuyo umbane. Igama yesi sixhobo livela kwigama IsiNgesi ukuxhathisa, gama elo elithetha - ukuxhathisa.

Ixabiso resistor wesiqhelo kulinganiswa e Ohms (Ohms Ohm m?), Emva nzulu umthetho Georg Ohm kaThixo uyaziwa, njengoko apho uxhathiso yesekethe lulwahlulo ombane ukuya beesekethe yangoku.

Kushishino, le resistors ziveliswa ezinexabiso ezahlukeneyo ukumelana eliyimali. Kukho iindidi ezintathu eziphambili zezi zixhobo: esingatshintshiyo, variable, izikhwezeli-.

resistor Fixed - kodwa iklasi ezona zininzi lweziqalelo ukuba amanzi rhoqo. Ngomhla izindlu esi sixhobo, onombhalo, intsingiselo uhlobo resistor, eliyimali ixabiso ukumelana udidi ukuchaneka, amandla wokuzibhubhisa, kunye nabanye. Le nkcazelo ufakwe ngeendlela ezahlukahlukeneyo. Ngoko ke, ungakwazi ukufumana izinto apho yonke idatha usebenzisa umbala ikhowudi (ezintathu ukuya ezisixhenxe bands ezinqamlezayo esinombala). Ukuze ufunde ezi amaxabiso, kufuneka usebenzise itafile okhethekileyo, nto leyo inokufunyanwa iincwadi reference okanye inkcazelo yezobugcisa ezi zinto. Uhlobo lwesibini ukurekhodwa oluza. Ngale ndlela ulwazi sisasazwa esebenzisa imiqondiso kunye manharhu. Ngenxa yoko, i-10 Ohm resistor kusenokubakho ngolu hlobo lulandelayo: MLT 10R. Kuthetha MLT isixhobo uhlobo.

resistor eliguqukayo - isixhobo kokuba uluhlu ethile yenkcaso engephi. Xa into enjalo ngokulungisa ilungu (liqhina rotary okanye iqhosha lemenyu), apho ukwazi ukucwangcisa kweelana efunekayo kwefowuni. Xa izixhobo ezinjalo ixabiso eliyimali kubonisiwe nokumakisha alphanumerical ifomu - zibonakaliswe umda ukusuka ubuncinane ukuya kwixabiso ukumelana eliphezulu. izixhobo ezinjalo ngokubanzi kusetyenziswa ukulawula kunye alarm nezicwangciso: njengoko ulawulo ithoni, amanqanaba, umthamo, rhoqo wasele kwi radio ekufumaneni izixhobo.

Trimmer - isixhobo kokuba uluhlu ethile yenkcaso ngegama, kodwa kuya kwa nshita, izinto, le uluhlu engabalulekanga. izinto ezinjalo ezisetyenziswa kwiisekethe elektroniki. Le misebenzi yenzelwe ukuba ulungelelwaniso kunye nokuphuculwa parameters ezifunekayo kuyilo izixhobo kanomathotholo okanye ngqo apho ayivumelekanga iimpawu uyachithachitha. Abavumela ukuba kanye ukubeka ukuxhathisa efunekayo, kwebanga soldered phezu resistors desoldering-rhoqo ezingeyomfuneko wesiqhelo yokukhetha ixabiso olifunayo.

Ngaphandle engundoqo parameters, nayiphi njalo-ebizwa olwaye lwamfimfitha rezistorasuschestvuet Uphawu - capacitance. Yintoni na le ndlela? Le capacitance ekumfimfitheni of the resistor zikholisa ezincinane kakhulu ingakumbi nantoni ayiphazamiseki. Kuyimfuneko ukuba ukuthatha ingqalelo kuphela kuyilo izixhobo ophezulu-ngqo. capacitance ekumfimfitheni ekhoyo phakathi ilungu pin; kwenzeka ukuba resistor enxuseneyo soldered capacitor. Kwakhona, isikhongozelo kwakhona kwenzeka phakathi resistor kunye iindawo ezikufutshane le PCB kunye iindawo ngesakhiwo.

Kule isishwankathelo somgaqo into efana resistor, siphela, iinkcukacha ezininzi ingafumaneka kwi bombane iincwadi zoshishino.