Giraanta kululaynta asalka ah ee foosto ee qaybta wax laga beddelay waa in laga saaraa.
Cabir cabirka foosto, guud ahaan oo ay kujirto dhererka wareegga, xisaabi suufkii loo baahan yahay ee loo baahan yahay oo qiyaaso in booska dabaysha uu ku filan yahay awoodda xididdada kuleylka asalka ah.
Ku duub cudbiga dahaarka ah foosto oo ku dheji faashad heer sare ah si aad u ilaaliso dhumucda suufka dahaarka ah illaa qiyaastii 1.5-2.0sm. Si loo sameeyo rakibaadda si aad u qurux badan, lakabka oo ah lakabka 0.5mm ee resin-ka dib-u-haynta ayaa lagu duubi karaa suufka dahaarka ah. guddiga.
Dabays silig magnet ah oo ku yaal foosto oo duuban, oo silig boogta boogta waa inuu ahaadaa sida ugu dhow ee suuragalka ah.
Ku rakib golaha kuleylka kuleylka elektromagnetic.
