The influence of pulsed magnet heating on maximal value of generated magnetic field

Abstract

The influence of pulsed magnet heating on maximal value of generated magnetic field is described. The operation of pulsed generator consisted of capacitor bank, thyristor switch and wire wound pulsed inductor is analyzed. The maximum value of generated magnetic field and pulse duration of pulsed magnet is limited by Joule heating and mechanical stresses. Using Matlab Simulink software the flexible model for simulation of thermodynamic processes in pulsed magnet is done. Calculated results of maximal value and distribution of magnetic field are verified experimentally and the acceptable compliance is achieved using calibrated array of four pick up inductive coils for measurements of axial magnetic field and a current shunt for pulsed current measurements.