Fault Detection Method of Medical Equipment Based on Multi-Index Electrical Performance Parameters

Table 9

Rules and conditions of air pump fault.

Status and parameters	I (mA)	(%)	P (W)	(%)	U (V)	(%)
Off
Ave	132	0	16.159	6.7	224.25	0
	(−2,2)		(−0.11,0.08)		(−0.62,0.35)
On
Ave	0.193	3.3	19.179	90	225.94	0
	(−7,7)		(−0.55,0.43)		(−1.4,1.1)