Degradation State Identification of Cracked Ultrasonic Motor by Means of Fault Feature Extraction Method

Table 2

Statistical results of the sensitivity factor.

	τ = 2	τ = 3	τ = 4	τ = 5	τ = 6
m = 3	28.70	23.98	18.66	10.86	9.84
m = 4	87.85	51.20	31.91	25.71	22.67
m = 5	103.07	160.89	90.36	49.55	27.54
m = 6	164.72	180.80	107.02	50.64	33.88