Yog lub electromagnetic yoj hluav taws xob ntawm lub high-frequency cua sov tshuab teeb meem rau tib neeg lub cev?

Ua ntej ntawm tag nrho cov, peb yuav tsum paub seb hom ntau zaus electromagnetic tsis muaj teeb meem rau tib neeg?

Raws li qhov tau teev tseg los ntawm IEEE (International Association of Electrical thiab Electronic Engineering):

1. Nyob rau hauv qhov ntau zaus ntawm li 0.1MHz mus txog 300MHz, qhov generated magnetic teb uas nws magnetic teb zog tshaj 3 milligauss yog teeb meem rau tib neeg lub cev. Lub magnetic teb ntawm 90MHz mus rau 300MHz yog qhov teeb meem tshaj plaws, thiab qhov qis dua, qhov ze nws yog 0.1MHz. Qhov me dua qhov kev puas tsuaj ntawm cov hlau nplaum, qhov teeb meem tsis zoo ntawm kev puas tsuaj rau cov hlau nplaum hauv qab 0.1MHz. Tau kawg, nyob rau hauv qhov teeb meem ntau, nws qhov kev siv zog yog qis dua 3 milligauss, uas feem ntau suav tias yog qhov muaj kev nyab xeeb.

2. Electromagnetic nthwv dej yog qhov teeb meem tshaj plaws ntawm 90MHz txog 300MHz. Qhov ze rau 12000MHz saum 300MHz, qhov kev puas tsuaj tsawg dua. Yog li ntawd, peb paub tias cov zaus 900MHz thiab 1800MHz ntawm “Big Brother” peb siv ua ntej yog nyob rau hauv qhov teeb meem ntau. . Raws li kev lag luam cua sov electromagnetic zog, qhov zaus yog 17 ~ 24KHz, uas belongs rau lub suab nrov zaus teeb liab (20 ~ 25kHz ntau). Tsuas yog qee lub suab nrov me ntsis, nws tsis muaj teeb meem rau tib neeg lub cev.

3. Qhov zaus thiab lub hauv paus ntsiab lus ntawm industrialized electromagnetic cua sov yog qhov pib zoo ib yam li cov khoom siv hluav taws xob hauv tsev. Tam sim no, tsev neeg induction cookers tau nkag mus rau ntau txhiab tsev neeg, thiab tsis muaj kev tsis ntseeg txog lawv txoj kev nyab xeeb. Qhov tseeb, lub sijhawm ua haujlwm zoo ntawm cov kab hlau nplaum ntawm induction cookers yog luv heev, tsuas yog nyob rau hauv 3cm rau hlau Qhov zoo yog zoo. Tej zaum koj yuav xav ua qhov kev sim yooj yim thiab ua tau zoo. Yog tias hauv qab ntawm koj lub cooker induction yog me ntsis txhim kho txawm tias los ntawm 1cm, qhov hluav taws xob induction nyob hauv qab ntawm lub lauj kaub yuav sai sai. Thiab rau peb cov khoom siv hluav taws xob hluav taws xob cua sov, lub kauj yog ntau tshaj 1500mm ntawm tus neeg teb xov tooj. , Qhov txaus ntshai yog negligible kiag li.

4. Kev vam meej niaj hnub no yog qhov sib cais ntawm cov hluav taws xob tsis sib xws, thiab peb qhov chaw kuj tseem muaj cov hluav taws xob sib nqus ntawm ntau lub wavelengths, ib yam li lub hnub ci. Yog tias lub ntiaj teb tsis muaj hnub ci, txhua yam yuav ploj mus, yog li lub hnub ci yog qhov muaj txiaj ntsig zoo electromagnetic yoj rau tib neeg. Tsis tas li ntawd, muaj ntau yam khoom siv kho mob infrared, uas kuj yog cov hluav taws xob hluav taws xob uas muaj txiaj ntsig zoo rau tib neeg lub cev. Txawm hais tias cov hluav taws xob hluav taws xob hluav taws xob ntawm hluav taws xob hluav taws xob tsis muaj txiaj ntsig, nws tsis muaj teeb meem rau tib neeg lub cev. Raws li kev ntsuam xyuas, nws yog kwv yees li ib-sixtieth ntawm lub sijhawm thaum lub xov tooj ntawm tes txuas nrog. Koj tuaj yeem siv nws nrog kev ntseeg siab.