Na fasaharLantarki

Mene ne wani resistor - babban fasali

Mutane da yawa, har ma da nisa daga matsaloli na kimiyyar lissafi, lantarki injiniya, Electronics utermine ji na kamar "adawa" ko wani sabon kalmar - resistor. Duk da haka, 'yan mutane san abin da shi ne da kuma abin da shi da ake amfani. To, abin da yake a resistor?

Amsa ga wannan tambaya ne mai sauki. Resistor - daya daga cikin na kowa lantarki gyara a rediyo, Tele-video-audio kayan aiki. Babban halayyar da resistor ne ta juriya, wanda aka auna a raka'a ohms. Akwai biyu main iri wadannan na'urorin da ake janar manufa da kuma abin da ake kira barga. Mene ne a barga resistor? Yana da quite tsada na'urorin da ake amfani da a high-daidaito kayan aiki. M amfani da janar nufi resistors.

Resistance janar nufi resistors iya bambanta a cikin game +/- 10%. A juriya dogara a kan abin da ake kira da zazzabi coefficient na juriya (a cikin na musamman adabi akwai raguwa TCR). Mafi misali resistor wannan m factor. Wannan yana nufin cewa wani karuwa a yawan zafin jiki ƙaruwa da kuma juriya.

Mene ne juriya cikin sharuddan da halaye? Daya daga cikin muhimman hakkokin halaye na resistors za a iya kira da ikon masha'a. Wannan shi ne ikon da ya iya dissipate ba tare da samun lalacewa. Power, kamar yadda muka sani, an auna a raka'a ji kamar Watts. Sanin maras juriya da kuma na yanzu gudãna ta hanyar lantarki kewaye, za a iya lasafta da fitarwa. An bisa ga dabara P = I ^ 2 * R, inda P - ikon, na - darajar yanzu ƙarfi, da R - rated resistor. Yana iya ƙarasa da cewa irin wannan resistor daga ra'ayi na lantarki aikin injiniya. Shi ne babban tsarin ɓangare na wani rangadi, wanda babban aiki ne don samar da wani maras muhimmanci da (sanin) juriya ga kwarara daga wutar lantarki a cikin kewaye domin manufar irin ƙarfin lantarki tsari da kuma na yanzu. sau da yawa amfani da wani da ake kira ballast ga manufar gudãnar da irin ƙarfin lantarki a cikin kewaye. Mene ne ballast resistor? Wannan na'urar ta haɗu da cibiyar sadarwa da kuma garwaya da wasu daga cikin haddi ƙarfin lantarki, game da shi Daidaita igiyoyin a cikin mutum rassan da kewaye da kuma rike irin ƙarfin lantarki kwanciyar hankali. A wadannan ka'idoji da aka tsara don ya jagoranci da kuma resistor. A LED ne a zahiri ba nan da nan ya ƙone ta wucewa igiyoyin ta hanyar shi, haɗa shi dai tokogasitelny resistor.

Da juriya na resistor dogara a kan abu na wanda ya kunshi. Yana kuma dogara a kan karfi area (da more yankin na cutoff, da ƙasa da juriya) daga resistor tsawon (da ya fi tsayi ne, da correspondingly fi juriya).

Resistors dace alama ta launi ko don dijital] aukar. Da taimakon da irin wannan lakabtawa ne zai yiwu su koyi da mafi muhimmanci dũkiyar wani resistor, wato da darajar da juriya. Koyi abin da ake nufi da musamman launi ko adadi na iya zama wani fasfo ko na'urar manufacturer ko maroki (misali, a kan website).

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