Full-Vector Signal Acquisition and Information Fusion for the Fault Prediction

Table 1

Difference of the -direction and -direction and fusion signals.

Signal	Amp. of 1st order (μm)	Amp. of 2nd order (μm)	Possible conclusions
-direction	2.61	3.19	Fault with double frequency
-direction	5.42	2.41	Fault with rotating frequency
Fusion signal	5.52	3.97	Fault with rotating frequency