DEVICE REGISTERING MECHANICAL FAILURE OF BLADES OF TURBINE ROTOR Russian patent published in 2000 - IPC

FIELD: testing equipment, specifically, equipment testing working blades of turbines, engines and compressors. SUBSTANCE: device registering mechanical failure of blades of turbine rotor has rotating rotor, magnetic system forming eddy currents in blades of rotor, induction coils measuring signals of electromotive force of induction, signal comparison circuit, magnetic tape applied to surface of shaft of rotor including sections magnetized to saturation uniformly located along length of shaft of rotor which number equals number of blades. Length of magnetized sections is found by formula b=a, where a is width of blade; R_sh is radius of shaft of rotor; R_b is radius of blade of rotor. EFFECT: fast registration of mechanical failure of blades. 1 dwg