Mene ne juna inductance?

Mutual shigar da sabon abu underlies a jam'i na lantarki na'urorin. Sau da yawa halin da ake ciki, a lokacin da wani mutum da aka kai tsaye tsayar da ta bayyananen a rayuwar yau da kullum, amma ba su ma san game da shi. Bari mu tuna da 'yan baya, inda babban bayanai watsa nufin sun analog sakonni. Kuma yanzu kusan dukkan kayan lantarki da aka canjawa wuri zuwa dijital daidaitowa iri. Gaskiyar cewa "adadi" da aka fi sani duk. Amma ka yi mãmãki, abin da daidai? Lalle ne, wasu gidãje har yanzu suna da wani ya aike da wayar aiki da akwatin tilbijin na analog PBX. Idan ka kwatanta zamani "mobile tarho" da "oldies", da kwatanta shi ne a fili ba a cikin ni'imar da karshen. Ji a kan bango na hira katse watsa shirye-shirye ko "mafi kyau" kalma ne har yanzu wani ya ta sadarwa - wannan ba abin mamaki. Wannan ya faru saboda a tarho na USB, da wayoyi ne kusa da juna, saboda haka akwai wani juna shigar da a biyu Lines. Wani misali shi ne wadanda pulsating akafi bayyana a cikin TV ta jawabai ko kwamfutarka ta jawabai, a lokacin da akwai mobilka kuma shi ne mai kira. A karshe, tsohon IDE-igiyoyi da 80 conductors amfani kawai da rabi daga cikinsu, yayin da sauran 40 hana sakamakon da ya kawo juna shigar da. Akwai misalai da dama, duk da sakamakon ba sa ji. Shi ne kawai da muhimmanci a tuna cewa a cikin wannan harka, wani "crosstalk" - wannan ne juna inductance.

Kullum, wannan kalma tana nufin aiwatar da abin da ya faru na wani electromotive karfi (EMF) a daya daga cikin m conductors a lokacin da canje-canje a cikin sauran data kasance yanzu darajar. Mai kawai bayyana da juna shigar da tare da gidan wuta. A ta sauki form (musamman hali), da gidan wuta qunshi biyu coils rauni a kan wannan Magnetic core. Lokacin da na yanzu gudana ta hanyar da waya na daya daga cikinsu, akwai a kusa da wani Magnetic filin. Sanadiyar haka ya bayyana Magnetic juyi ratsa cikin biyu nada shugaba, samar da emf a cikinta. Ya bayyana a jawo halin yanzu, isa ya rufe binciken da nada, samar da sarkar. Tare da kara tsanani da Magnetic juyi ne ta ƙara da juna inductance. Don cimma da ake so halaye (msl, yadda ya dace) ana amfani da daban-daban mafita: canza sanyi na Magnetic kewaye. musamman hanya da aka yi, a Tuddan coils da Ave. juna inductance aka auna da wani variometer.

Yadda ake da shi bayyana a cikin misalai da aka ambata a baya a wannan labarin? Very sauki: a kusan dukkan lokuta (sai dai mobile tarho) suna located kusa da dama conductors, a kalla daya daga wanda ya wuce wani lantarki a halin yanzu. Saboda haka, akwai wani Magnetic filin da samar da Magnetic juyi. A karshen, iya shiga nan kusa conductors yanã EMF a su, kazalika da sarkar ne, sa'an nan, a bisa ga dokar da na electromagnetic shigar da, a halin yanzu gudana. Umurninsa ne m da ake ji da mulki na Lenz.

Mutual yadu a yi amfani da zamani lantarki aikin injiniya. Tun da wasu da ba a ke so illa da aka jera a baya a wannan labarin, shi ya sa hankalta ba misalai na da amfani. Daya daga cikin mafi yawan sanannun na'urorin - iyali stabilizer mains. Ciki akwai wani gidan wuta (yawanci a toroid irin) tare da wani jam'i na tashoshi, kowane daga wanda yayi dace a wasu irin ƙarfin lantarki darajar. Har ila yau, a wasu na'urorin za ka iya samun mai ban sha'awa bayani - galvanic kadaici. A gaskiya, wannan shi ne guda gidan wuta (wani lokacin photocoupler biyu), amma ba ta amfani da canji coefficient. A sakamakon haka, zai yiwu a yi Magnetic juyi ta hanyar mahara sadarwa hanyoyi, samar da ya dace matakin na lantarki aminci. Production misali, shi davit.