| 摘要 |
<p>An eddy current sensor (4) comprises two poles aligned in the same partition (3) extending direction located behind a wall (2) whereof the thickness is to be measured but which perturbs the measurements. The influence of the partitions (3) is reduced if the core (6) of the detector (4) comprises two poles aligned in the extending direction of the partitions (3) and if a logic system is used to correct the results obtained on the basis of preliminary results on a reference surface.</p> |
