Yimiphi imikhakha kagesi (EMF)

Amasimu kagesi nemisebe elisizungezile. Kwanele flip inkinobho - futhi izibani ukuphuma, ujike kukhompyutha yakho - futhi usemoyeni, shayela inombolo kuselula yakho - futhi ungakwazi ukuxhumana amazwekazi ezikude. Eqinisweni, it wadala yesimanje zikagesi izwe esiphila kulo. Nokho, Ngezinga elandayo, impikiswano eyaphakanyiswa eminyakeni yamuva ukuthi amasimu kagesi (EMF) eyenziwe ezisebenza ngogesi ukuze ibe yingozi. Ingabe kuyiqiniso lokhu? Zama ukuqonda.

Thina siqale incazelo. Amasimu kagesi, njengoba aziwa enkambweni physics esikoleni, bakha uhlobo olukhethekile ndaba. Isici esiyinhloko salelo kula masimu - ikhono basebenzisane emizimbeni ezithile nezinhlayiyana kokuba icala zikagesi. Njengoba leli gama lisikisela, amasimu kagesi iqoqo kazibuthe kanye kagesi, kuleso simo zihlobene eduze kangangokuthi ezibhekwa iyunithi. Izici nokuxhumana nge izinto icala zichazwe ngosizo the Lorentz amandla.

ensimini Okokuqala kagesi abangu izibalo waveza ngemcondvo uMaxwell e-1864. Empeleni, bekubonakala lwembula Amasimu indivisible kazibuthe kanye kagesi. Omunye umphumela we umbono yokuthi iyiphi perturbation (ushintsho) yasendle kagesi siyimbangela amagagasi kagesi lokusakaza e vacuo nge ngejubane lokukhanya. Izibalo esebonisa ukuthi ukukhanya (zonke ingxenye spectrum: infrared, ebonakalayo, ultraviolet) kuba wave kagesi. Ngokuvamile, ekulinganisweni ekushayweni wavelength ukuhlukanisa-X-ray, umsakazo nokunye.

Ukubukeka theory uMaxwell sika kwandulelwe ukugunyazwa okwenziwe umsebenzi Faraday (ngo-1831) lapho kutadishwa lokungeniswa kagesi e umqhubi ezihambayo noma ibekwe ku-field kushintshana kazibuthe. Ngisho nangaphambili, ngo-1819, uH Oersted ngaphawula ukuthi lapho eduze umqhubi ukubeka ikhampasi, inaliti yayo kuphambuka zemvelo izingongolo kazibuthe Zomhlaba, okuyinto aphakanyisiwe ukuxhumana ngqo ye kazibuthe kanye kagesi.

Konke lokhu kusikisela ukuthi iyiphi into yokwenza kuyinto generator amagagasi kagesi. Le mpahla is ikakhulukazi liphinyiselwe kwabanye amadivayisi athile nelezifunda ophakeme wangaleso sikhathi. Bobabili lokuqala nelesibili sele akhona cishe kuyo yonke imizi. Njengoba EMF osebenza izinto conductive hhayi kuphela kodwa futhi dielectrics (isib, cleaner), umuntu uhlale ezonini yezenzo zabo.

Uma ngaphambili, lapho igumbi kwaba kuphela "isibani Ilyich", umbuzo rankled. Manje kuhlukile: the kagesi emkhakheni nesilinganiso kusetshenziswa amathuluzi akhethekile ukukala amandla emkhakheni. Bobabili izingxenye awashintsheki EMF e imvamisa ezithile ezahlukene (kuye ngokuthi nozwela yomculo). Lowo Mbhalo wangonyaka we SanPiN ecacisiwe PDN (kuyinsakavukela kuvunyelwe). Amabhizinisi kanye nezinkampani ezinkulu ngezikhathi amasheke kuyenziwa PDN EMF. Kufanele kuqashelwe ukuthi imiphumela yokugcina izifundo EMF imiphumela ku eziphilayo sisekhona. Ngakho-ke, isibonelo, uma usebenza ubuchwepheshe bama-computer bayakhuthazwa ukuhlela ikhefu angu-15 ngemva njalo ngehora - nje uma ... Incazelo ulula: emhlabeni umqhubi has kazibuthe, bese kuba khona futhi EMF. Imishini iphephile ngokuphelele kwenzeka ukuthi lapho ngikhishwa odongeni esidayisa intambo yamandla.

Kusobala ukuthi ukuba ngokuphelele ukulahla ukusetshenziswa zikagesi, bambalwa onesibindi. Nokho, ngaphezu, ungazivikela ngokuxhuma ekhaya Imishini kunethiwekhi lusekelwe, okuvumela ezingaba akuyona eqoqwe mayelana naleli cala, kanti "sokukhipha" kumjikelezo phansi. extenders abahlukahlukene, ikakhulukazi coiled esiyingini, ngenxa baqinise EMF mutual. Futhi-ke, kufanele ugweme ukubekwa eduze Amadivayisi amaningi ifakiwe.