Usebenzisa umgaqo womlinganiselo wobushushu bomphezulu we-acoustic, ulwazi lweqondo lobushushu kwizinto zesignali ye-electromagnetic wave frequency. Inzwa yobushushu ifakwe ngokuthe ngqo kumphezulu wezinto ezilinganisiweyo zobushushu, inoxanduva lokufumana isignali yerediyo frequency, kwaye ibuyise isignali yerediyo ngolwazi lobushushu kumqokeleli, xa isivamvo sobushushu sisebenza ngokuqhelekileyo, asifuni mandla angaphandle. unikezelo olufana nebhetri, unikezelo lwamandla lwe-CT loop. Ukuhanjiswa kwentsimi yomqondiso phakathi kwenzwa yobushushu kunye nomqokeleli wobushushu kubonwa ngamaza e-electromagnetic.