Patent ID: 9199800
Filing Date: 2015-12-01
Classification: B65G

Abstract:
1. A system for monitoring a conveyor belt having magnetically permeable cords, which includes: an AC magnetic field generator for generating an alternating magnetic field to magnetize the cords, in use; a magnetic field sensing unit for sensing the alternating magnetic field provided, in use, by the magnetized cords and for providing signals representative of the alternating magnetic field provided, in use, by the magnetized cords, wherein the magnetic field sensing unit is a separate apparatus located downstream of the AC magnetic field generator for sensing the alternating magnetic field provided, in use, by the magnetized cords after being magnetized by the alternating magnetic field generated by the AC magnetic field generator; a DC magnetic field generator that erases an AC field generated by the AC magnetic field generator; and a processor for processing the signals to monitor continuous parts of the cords.