Txij li thaum xyoo 1980s, rab phom hluav taws xob tau dhau los ua ib feem tseem ceeb ntawm kev npaj txhim kho rau kev tsim kho cov txheej txheem yav tom ntej. Kev tshuaj xyuas ntawm tus yeeb ncuab qhov yuav tshwm sim ntawm cov ntsiab lus tawm tsam rau qhov xav tau cov cuab yeej siv riam phom tshiab nrog ntau dua thiab txhim kho kev ua tau zoo, thiab cov phom loj ib txwm zoo li yuav mus txog lawv cov kev txwv txwv los ntawm lwm tiam. Lub zog muzzle tuaj yeem nce ntxiv los ntawm kev ua haujlwm tsis zoo, thaum pib qhov nrawm ntawm cov riam phom uas twb muaj lawm nrog cov yam ntxwv ua tau zoo twb tau ze rau lub cev thiab kev txwv. Cov kev cai lij choj ntawm lub cev tswj hwm lub zog hluav taws xob ntawm lub foob pob hluav taws tso cai rau lub foob pob hluav taws nrawm dua li cov phiaj xwm ib txwm muaj - qhov txiaj ntsig tseem ceeb ntawm rab phom hluav taws xob. Ib qho kev nce hauv lub qhov ncauj lub zog kuj tseem tuaj yeem xav tau. Ib rab phom EM kuj tseem yuav muaj txoj sia nyob tau zoo dua li cov phom loj, thiab nyob rau lub sijhawm muaj kev kub ntxhov, kev ywj pheej los ntawm cov khoom siv hluav taws xob tuaj yeem yog qhov tseem ceeb. Lub zog hluav taws xob rau rab phom hluav taws xob tuaj yeem tau txais los ntawm txhua qhov chaw siv hluav taws xob.
Txoj hauv kev siv hluav taws xob ntawm kev tshaj tawm lub foob pob hluav taws tau thov thaum pib ntawm lub xyoo pua puv 19, tab sis qhov tsis muaj txoj hauv kev zoo khaws cia hluav taws xob tiv thaiv nws qhov kev siv. Kev tsim kho tsis ntev los no tau coj mus rau qhov kev vam meej tseem ceeb hauv kev khaws hluav taws xob, thiab yog li qhov ua tau ntawm kev siv riam phom nrog rab phom hluav taws xob tau nce ntau.
ELECTROMAGNETIC rab phom
