[Uniformity] Harmonic Analysis

The measured force variation waveform is called the Composite Waveform.


Fourier analysis expresses the original waveform as the sum of multiple sine waves, or harmonics. Each harmonic is defined by an amplitude and phase angle.


Example: Fourier analysis of the composite waveform, broken into four harmonics. The sum of these four harmonics approximate the original waveform.


Harmonic Analysis