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Recently, to understand the magnetic fields and properties under the distorted flux density waveforms have become very important with the development of power electronics technology. Furthermore, we need to examine the 2-D vector magnetic properties to understand the magnetic field in detail . In this paper, we propose the estimating method of the magnetic field strength waveforms under distorted flux density conditions. The estimated magnetic field strength waveform, which is called as EFS in this paper, is calculated by the magnetic field strength waveform that can be obtained when the specimen is excited with a fundamental sinusoidal frequency component of the distorted flux density waveform. We compare the difference among the estimated field strength waveform (EFS), measured magnetic field strength waveform (MFS) directory, and the linear synthesis magnetic field strength waveform (LSFS) that can be calculated by the linear synthesis of the field strength waveforms of each frequency component, in order to evaluate the efficiency of EFS. We define the equation to estimate the magnetic field strength waveforms under distorted flux density condition. We show the equations in x direction. Those in y direction can be obtained by changing ‘x’ to ‘y’. Firstly, we define the field strength waveforms depending on the eddy current. The equation is expressed as followings,

Estimation of the Magnetic Field Strength Waveforms under Distorted Flux Density Conditions