| 摘要 |
The device comprises a magnetization unit, which generates a constant magnetic field, to which the test specimen (12) is exposed so as to magnetize it. The magnetization unit and test specimen (12) carry out a relative motion to each other, thereby inducing eddy currents in the test specimen (12). The magnetization unit has at least one yoke (10) projecting in the direction of the relative motion. In addition to a probe (14), which is offset toward the back with respect to the magnetization unit in the direction of the relative motion and which is suited to detect damage based on the influence of the damage on the induced eddy current, the device comprises at least one further probe (16) between the yoke limbs of the magnetization unit. |
