A Soft Computing Approach to Crack Detection and Impact Source Identification with Field-Programmable Gate Array Implementation

Table 4

Labels for the input function of CDISI fuzzy inference system.

Range	Labels
	LL	LH	ML	MM	MH	HL	HH	VH
Arms	0.1–1.1	1.1–1.4	1.4–1.7	1.7–1.9	1.9–2.3	2.3–3.5	3.5–4	>4
Amax	0–6.5	6.5	6.5–8	8	8–10	10	10–17	>17
Brms	0–1.5	1.5–2.4	2.4–2.9	2.9	2.9–3.3	3.3	3.3–4.0	>4
Bmax	0–10	10	10–13	13	13–15.4	15.4	15.4–17	>17
Frequency (KHz)	1–30	30–60	60–70	70–80	80–90	90–100	100–110	>110
Avg. RMS voltage	0–0.001	0.001–0.00199	0.00199–0.00225	0.00225–0.00250	0.00250–; 0.002971	0.002971–0.003111	0.003111–0.004	>0.004
Standard deviation	≤0.00003	0.00003–0.00003229	0.00003229–0.00006229	0.00006229–0.0001	0.0001–0.0001889	0.0001889–0.000199	0.000199–0.00021	>0.00021