| 摘要 |
<p>The device has coils (22, 32, 42) with cores (24, 34, 44), where a combination of the coil (22) and the core (24) is suitable for generating a detectable signal with the presence of flux line (15). The detectable signal generated by the combination is fed to an amplifier and a power conditioning unit in order to acquire significant details about defects (12, 14) in a material surface of a ferromagnetic test sample (10).</p> |
