An Accurate Integral Method for Vibration Signal Based on Feature Information Extraction

Table 1

Error comparison of integral velocity.

Integral method	Error indices
	Average peak error	Average maximum relative error	Error of square sum
TDI	0.2475	0.4200	0.0786
FDI	0.1681	0.2988	0.0211
FIE	0.0459	0.1797	0.0208