Probabilistic Neural Network and Fuzzy Cluster Analysis Methods Applied to Impedance-Based SHM for Damage Classification

Table 3

Classification of test set of probabilistic neural networks for each PZT patch in the aircraft panel.

		Baseline	Damage 1	Damage 2	Error%
PZT1	✓	23	10	5	52,5%
	✗	17	10	15
Total		40	20	20
PZT2	✓	20	9	8	55%
	✗	20	11	12
Total		40	20	20
PZT3	✓	35	20	16	11,25%
	✗	5	0	4
Total		40	20	20
PZT4	✓	32	20	14	17,5%
	✗	8	0	6
Total		40	20	20
PZT5	✓	40	19	18	3,75%
	✗	0	1	2
Total		40	20	20
PZT6	✓	40	20	18	48,75%
	✗	19	8	12
Total		40	20	20
PZT7	✓	40	20	19	1,25%
	✗	0	0	1
Total		40	20	20
PZT8	✓	40	20	18	2,5%
	✗	0	0	2
Total		40	20	20