Fa'amatalaga Pupuu:

O ki fa'amagnetisi e aofia ai ki fa'amagnetisi eddy current, ki fa'acapacitive proximity, ki Hall proximity, ki photoelectric proximity, ki pyroelectric proximity, ki TCK magnetic ma isi ki fa'amagnetisi. Talu ai ona e mafai ona faia ni masini fa'asolo e tusa ai ma mataupu fa'avae eseese ma auala eseese, ma e eseese auala "iloilo" o masini fa'asolo mo le malolo fa'aletino, o lo'o i ai nei ki fa'aproximity masani: ki fa'aproximity tafe susu O lenei ki e ta'ua i nisi taimi o ki fa'aproximity inductive. O le fa'aaogaina o mea e fa'aolaola i tafatafa o lenei mea e mafai ona fa'atupuina ai se fanua eletise.