Monitoring Machines by Using a Hybrid Method Combining MED, EMD, and TKEO

Table 3

Correlation value between IMF₁ (obtained by EMD and MED-EMD) and the signal when rotating at 300 rpm.

	300 rpm
	0 μm	50 μm	100 μm
EMD	0.53	0.40	0.42
MED-EMD	0.94	0.65	0.78