Field coil for use with potential coil for measuring inner field intensity of magnetic material

摘要

Process and apparatus for measuring the hysteresis curves of magnetic materials when using a field coil and a potential coil of a size such that the ends of the latter coil project through the winding of the field coil. The process consists of integrating the output signal of the potential coil to obtain a first value, utilizing a voltage that is proportional to the field coil current to obtain a second value which is then added to the first value to obtain the field intensity H. In order to compensate for the presence of the legs of the potential coil, additional short windings of higher turn density are included in the field coil winding.