Calibration of an industrial pulsed field magnetometer

摘要

An industrial design of a pulsed field magnetometer (PFM) which generates in a bore of 30 mm a maximum field of 5 tesla with two different pulse durations (40 and 57 ms) is described. The field is calibrated using a small pickup coil where the effective winding area is known from a nuclear magnetic resonance calibration. The magnetization is calibrated using Fe{sub}3O{sub}4, an industrial ferrite, but also Fe and Ni.