Abin da electromagnetic filayen (EMF)

Electromagnetic filayen da kuma radiation kewaye da mu. Shi ne isa zuwa jefa cikin canza - da kuma fitilu fita, kunna kwamfutarka - da kuma kana online, buga lamba a kan wayarka ta hannu - kuma za ka iya sadarwa tare da m nahiyoyi. A gaskiya, shi ne ya halitta na zamani lantarki kayan duniya kamar yadda muka san shi. Ƙara, duk da haka, batun tashe a 'yan shekarun da cewa electromagnetic filayen (EMF) generated da lantarki da kayan aiki don zama cutarwa. Shin wannan gaskiya ne? Ka yi kokarin fahimtar.

Mun fara da definition. Electromagnetic filayen, kamar yadda aka sani daga kimiyyar lissafi makaranta Hakika, dokoki ne na musamman nau'i na al'amarin. A key alama na wadannan filayen - ikon hulɗa tare da wasu gawawwaki da barbashi da ciwon wutar lantarki. Kamar yadda sunan ya nuna, da electromagnetic filayen ne mai tarin Magnetic da lantarki filayen, wanda idan aka haka a hankali alaka cewa suna dauke da wani naúrar. Features na hulda da cajin abubuwa suna bayyana tare da taimakon da Lorentz karfi.

Da farko electromagnetic filin da aka shifran riyadiyah bayyana a Maxwell ka'idar a 1864. A gaskiya, shi da aka saukar basa Magnetic da lantarki filayen. Daya sakamako ka'idar shi ne gaskiya cewa wani perturbation (canji) na electromagnetic filin ne cikin hanyar electromagnetic taguwar ruwa yada a vacuo tare da gudun haske. Lissafi ya nuna cewa haske (duk wani ɓangare na bakan: da infrared, a bayyane, ultraviolet) shi ne wani electromagnetic kalaman. Kullum, kassa watsi zango rarrabe X-ray, rediyo da sauransu.

A bayyanar da Maxwell ka'idar da aka riga da aikin Faraday (a 1831) a nazarin electromagnetic shigar da a wani shugaba motsi ko sanya shi a cikin wani alternating Magnetic filin. Ko a baya, a 1819, H. Oersted lura cewa, a lokacin da kusa da wani shugaba sa kamfas, ta allura deviates daga cikin halitta Magnetic sandunan na Duniya, wanda shawarar kai tsaye link na Magnetic da lantarki filayen.

Duk wannan ya nuna cewa, wani nema ne a janareta na electromagnetic taguwar ruwa. Wannan dukiya ne musamman furta ga wasu takamaiman na'urorin da high halin yanzu haihuwarka. Dukansu farko da na biyu ne a yanzu ba a kusan kowane gida. Tun EMF shafi ba kawai conductive kayan amma kuma a dielectrics (misali, injin), da mutum ne ko da yaushe a cikin Shiyyar suka kasance sunã aikatãwa.

Idan a baya, a lokacin da dakin da aka sani kawai "haske kwan fitila Ilyich", wannan tambaya rankled. Yanzu duk abin da yake daban-daban: da electromagnetic filin ji aka yi amfani da musamman kida don auna filin ƙarfi. Dukansu aka gyara an gyarawa EMF a wani mita range (dangane da muhimmancin da kayan aiki). The daftarin aiki SanPiN kayyade PDN (halatta kullum). A Enterprises da manyan kamfanoni da lokaci zuwa lokaci cak ake yi PDN EMF. Ya kamata a lura da cewa karshe sakamakon nazarin da EMF effects a kan halittu ne har yanzu akwai. Saboda haka, misali, a lõkacin da aiki tare da kwamfuta fasahar suna karfafa don tsara wani 15-minti hutu bayan kowane awa daya - kamar idan ... A bayani ne quite sauki: a kusa da shugaba yana da wani Magnetic filin, sa'an nan akwai kuma EMF. A kayan aiki ne gaba daya lafiya a yayin da cewa a lokacin da ja daga bangon kanti igiyar wutan.

Babu shakka cewa gaba daya watsi da amfani da na'urar kayan, 'yan kuskure. Duk da haka, a cikin Bugu da kari, za ka iya kare kanka da a haɗa gida kayan zuwa na rasa cibiyar sadarwa, barin m ba a tattara a kan lamarin, da kuma "lambatu" a cikin ƙasa madauki. Daban-daban extenders, musamman ya kumshe wadansu abubuwan da zobe, saboda ƙarfafa juna EMF. Kuma, ba shakka, ya kamata ka kauce wa kusa jeri na mahara na'urorin hada.