the signature shows distortion. However, in medium 2 and high ranges, the impedance of the inductor is
low compared with the internal impedance of the Tracker 2000, so the signatures are a split vertical trace.
Figures 5-37 and 5-38 show the same 490mH inductor being tested at 400 Hz and 2000 Hz.
Figure 5-36.Signatures of a 490mH ferrite inductor tested at 60 Hz.
Figure 5-37.Signature of a 490mH ferrite inductor at 400 Hz.