Metal rods with magnetic bit patterns e.g. for position determination of piston rods, has magnetic bit patterns available in form of radially closed rings

摘要

Metal rods with magnetic bit patterns for magnetic sensory position- and movement-determination at the rods/bars. The magnetic bit patterns are present in the form of radially closed rings and the magnetization is directed perpendicularly to the rod surface : An independent claim is also included for a device for generating the magnetic bit pattern.