Large bore pulsed field magnetometer for characterizing permanent magnets

A large bore pulsed field hysteresigraph is described. The system can be used for a fast quality control of industrial permanent magnets. It consists of a pulse magnet with a bore of 70 mm inner diameter and a maximum field of 10 T. The pulse duration can be varied between 4 and 15.7 ms. The system is calibrated within 1%.