A resistor darajar - hanyoyi na rikodi

Resistors - da abubuwa na lantarki haihuwarka da ciwon juriya ga nassi na lantarki. Suna amfani da duk na'urar lantarki, ko da a cikin mafi na farko. Rarrabe resistors ta da wadannan siffofin: ikon at maras muhimmanci juriya da aji na daidaito . Hankali, da dai sauransu. A cikin wannan labarin, za mu duba irin wannan abu a matsayin juriya darajar. Mene ne wannan? A karkashin denomination na juriya kashi nufin matakin darajar da ciki juriya na da nassi na lantarki therethrough. A lantarki resistor darajar da aka denoted da Latin haruffa R. Wannan darajar da aka yawanci rubuta a cikin irin raka'a, kamar yadda Om. Wannan naúrar aka mai suna bayan sanannen Jamus likita Georg Simon Ohm, a san shi da aiki a filin na lantarki. Me kana bukatar ka sani da darajar resistors? Me za ka zabi da hakkin abubuwa ga wani makirci tsara don karba wani analog na gyara na'urar.

La'akari da rikodi hanyoyin maras juriya dabi'u a cikin gidaje abubuwa. Akwai hanyoyi uku na sa alamar resistors: Digital - ya hada da kawai lambobi. harafin - An wani hade, tare da lambobi da kuma haruffa ne ba; kuma a karshe launi - shi ne jerin gangara makada na launi daban-daban, yawan hanyoyi ne daban-daban, daga 3 zuwa 5.

Bugu da ari, bincika kamar yadda aka rubuta resistor darajar dangane da irin rabi. Constant juriya waya-type abubuwa ne cylindrical ganga. Alama da irin wannan abubuwa a duk hanyoyi uku. Digital rikodi ne kawai amfani ga resistors, da darajar da maras muhimmanci darajar da wanda ba ya wuce 999 ohms. Ga alama kamar haka: 2.0. 220. 750. Yana nufin daidai da 2 ohms, 220 ohms da 750 ohms. Next rikodi irin amfani a waƙafi haruffa na Latin haruffa: R - shi ne mai naúrar. K - kilo, watau 1000. M - Mega, watau 1000000. Sai dai itace cewa tare da wannan rikodi hanya, domin samun resistor darajar dole ne a Tazarar darajar ta tara da tamanin da zahiri. An misali na irin wannan mai rikodin 220 R - 220 ohms nufin; 3K2 - yana nufin 3200 ohms. 1M1 - yana nufin 1100 ohms.

Launi coding na rated darajar aka yi amfani da fadin rikodi na cylindrical jiki memba. A resistors Soviet-sanya alama da aka amfani da wani biya diyya ga daya gefen, shi ya nuna asalin da dikodi mai. A zamani abubuwa karshe band ko da yaushe zinariya ko azurfa bar code, kuma shi yana nufin da juriya daidaito aji (5 ko kashi 10 cikin dari). A cikin taron cewa alama kunshi kawai uku makada, tsoho haƙuri aji ake nufi kashi 20 cikin dari. Tsarinsa kunshi 3-4 makada a cikin na farko guda biyu darajar qunshi wani maras muhimmanci darajar, da kuma na uku - da darajar da multiplier. Tsarinsa na 5-6 makada a farko uku darajar qunshi maras muhimmanci, kuma a karo na hudu - tamanin da multiplier.

Next view juriya - guntu resistor ko wani SMD-resistor. A cikin irin wannan resistors alama ne Tazarar da kuma m. Ta kawai tsaye: a cikin dijital sa alama na farko lambobi nuna maras muhimmanci darajar, da kuma karshen da yawan zeros. a cikin halin - na farko da biyu lambobi nuna denomination, kuma na karshe hali - tamanin da multiplier.

A cikin m resistor , da misali rikodi na maras muhimmanci darajar amfani da lambobi da kuma haruffa da Latin haruffa.