Nondestructive Testing of Metallic Cables Based on a Homogenized Model and Global Measurements

Table 4

Real experiment; 𝑁: the number of detected wires; 𝑠: the center of the ring; (a) all measurements; (b) low frequencies: all measurements for 𝑓∈[0.5,300] Hz; (c) middle frequencies: all measurements for 𝑓∈[100,1000] Hz; (d) high frequencies: all measurements for 𝑓∈[500,5000] Hz.

Model →	1		2		3
Sample ↓	𝑁	𝑠 [mm]	𝑁	𝑠 (mm)	𝑁	𝑠 (mm)
(a)	23.03	1.5979	17.90	1.5897	11.82	1.9204
(b)	17.80	2.3876	16.09	2.3989	11.60	2.4213
(c)	24.83	2.3698	22.39	2.3900	16.38	1.9177
(d)	42.35	0.7179	24.47	0.5750	13.26	1.2940