Research Article

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

Table 2

The relationship between the cross-sectional area of the test piece and the voltage.

Cross-sectional areaVoltageRemanenceSaturation magnetic inductionBreaking force

52.1397.6764.82211.351.1
84.20112.5781.92754.266.4
117.64133.9796.12943.579.8