Electromagnetic radiation analyzer coj koj kom nkag siab txog cov electromagnetic teb nyob ib puag ncig koj
Hauv ntiaj teb peb nyob, hluav taws xob hluav taws xob muaj nyob txhua qhov chaw. Ntuj electromagnetic nthwv dej xws li hnub ci, xob laim, thiab cosmic rays yog txhua yam tshwm sim, thiab peb tau yoog rau hom hluav taws xob no rau qee yam; Ntau tus tib neeg inventions raws li electromagnetic technology kuj radiate electromagnetic zog rau hauv qhov chaw, xws li cov xov tooj ntawm tes thiab lub hauv paus chaw nres tsheb, microwaves, computers, TVs, thiab hais txog.
Thiab qhov peb feem ntau hu ua "electromagnetic radiation" yog "tsis yog ionizing hluav taws xob" nrog lub zaus uas tsis txaus los rhuav tshem cov tshuaj sib txuas ntawm cov molecules. Piv txwv li, cov khoom siv hluav taws xob tsawg tsawg uas tsim los ntawm cov kab hluav taws xob siab, cov khoom siv hluav taws xob, thiab cov khoom siv hauv tsev dav dav; Cov hluav taws xob hluav taws xob ntau zaus tsim los ntawm cov cuab yeej thiab cov khoom siv xws li xov tooj ntawm tes, chaw nres tsheb hauv xov tooj ntawm tes, WIFI routers, thiab microwave ncu ua haujlwm hauv microwave zaus ntau ntawm ntau pua M mus rau ob peb GHz muaj rau hluav taws xob hluav taws xob.
Yog li yuav ua li cas ntsuas qhov "loj" lossis "dose" ntawm electromagnetic hluav taws xob? Peb feem ntau ntsuas nws los ntawm qhov hluav taws xob siv hluav taws xob hluav taws xob hluav taws xob (hauv volts ib meter, V / m). Rau cov hluav taws xob hluav taws xob tsawg tsawg, peb kuj yuav tsum xav txog nws lub zog sib nqus (hauv Tesla, T), thiab cov hluav taws xob hluav taws xob ntau zaus xws li microwave thiab xov tooj cua zaus yuav tsum ntsuas los ntawm lub zog ceev (hauv W / m2); Txhawm rau tshawb xyuas qhov cuam tshuam ntawm electromagnetic nthwv dej ntawm tib neeg lub cev, peb kuj tseem siv qhov Specific Absorption Rate (SAR) hauv watts ib kilogram (W / kg) los ntsuas cov hluav taws xob los ntawm qee cov khoom siv hluav taws xob uas nyob ze rau tib neeg siv.
Yuav tiv thaiv hluav taws xob hluav taws xob li cas?
Ntawm ib sab, cov koom haum thoob ntiaj teb xws li International Committee on Non Ionizing Radiation Protection (ICNIRP) thiab International Electrotechnical Commission (IEC) tau tsim cov qauv rau hluav taws xob hluav taws xob los ntawm kev sau cov kev tshawb fawb ntsig txog hluav taws xob hluav taws xob, uas tuaj yeem ua kom muaj kev nyab xeeb ntawm cov hluav taws xob cuam tshuam. cov khoom siv rau tib neeg kev noj qab haus huv thaum siv. Ntau lub teb chaws kuj tau qhia txog cov kev cai lij choj, kev cai, thiab cov qauv kev lag luam.
Piv txwv li, Tuam Tshoj tus "Electromagnetic Environment Control Limits" (GB8702-2014) xa mus rau cov qauv tseem ceeb ntawm ICNIRP thiab IEC, thiab teev cov kev txwv kev nyab xeeb thiab kev soj ntsuam cov txheej txheem rau electromagnetic teb nyob rau hauv thaj tsam ntawm 1Hz txog 300GHz nyob ib ncig ntawm peb. Piv txwv li, ib puag ncig hluav taws xob ntawm lub hauv paus chaw nres tsheb thiab lwm yam khoom siv yuav tsum tau tswj tsis pub dhau 12V / m thiab nruj me ntsis saib xyuas thiab tswj los ntawm cov chaw tiv thaiv ib puag ncig hauv Suav teb. Ib yam li ntawd, Tuam Tshoj tus "Local Exposure Standard for Electromagnetic Radiation from Mobile Phones" (GB21288-2007) tau teev tseg tias qhov tshwj xeeb nqus tus nqi (SAR) tus nqi ntawm cov hluav taws xob hluav taws xob los ntawm cov xov tooj ntawm tes yuav tsum qis dua 2W / kg.
Nws yuav tsum raug sau tseg tias "kev txwv kev nyab xeeb" hauv cov qauv no tau txiav txim siab los ntawm kev faib cov "qhov tseem ceeb" ntawm cov hluav taws xob hluav taws xob hluav taws xob uas yuav ua rau muaj kev phom sij rau kev noj qab haus huv los ntawm 5 txog 10 raws li cov kev ntsuas cuam tshuam thiab lwm yam. Tab sis nws tsis tas txhais hais tias dhau qhov kev txwv kev nyab xeeb yuav ua rau muaj kev phom sij rau kev noj qab haus huv. Hauv ntej, yog tias peb siv cov khoom siv hluav taws xob tsim nyog lossis cov khoom siv hauv tsev uas tsim los ntawm cov tuam txhab tsim cai raug cai, peb txoj kev noj qab haus huv yuav tsis cuam tshuam thiab peb tuaj yeem tau txais txiaj ntsig.
