[Retracted] Nondestructive Testing of Coal Mine Wire Ropes Based on Magnetic Sensors

Table 4

The relationship between MF intensity and magnetic induction intensity.

Cycles	Input current	MF strength	Output voltage	Magnetic induction
1	0	0	0	0
2	0.05	288	10.5	239.1
3	0.10	576	12.3	255.2
4	0.15	633	15.4	269.4
5	0.20	730	17.2	280.5
6	0.25	805	18.8	298.7
7	0.30	862	19.7	305.2
8	0.35	910	20.3	314.6
9	0.40	1120	30	372
10	0.45	1630	30	372