Effects of Placement Errors on Performance of VLF Metal Detector Heads
oraz | 03 gru 2011
O artykule
Data publikacji: 03 gru 2011
Zakres stron: 675 - 685
Otrzymano: 11 lis 2011
Przyjęty: 30 lis 2011
DOI: https://doi.org/10.21307/ijssis-2017-462
© 2011 Lawrence J. Carter et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Metal-detector performance depends heavily on the sensor head. Errors in coil placement within the head can lead to degradation in detector performance. Electromagnetic modelling of typical very-low-frequency detector heads shows the effect of coil placement errors on detector sensitivity. Provided the bucking coil ‘tracks’ the receive coil, required error corrections can remain small. A correctly-aligned head could detect a gold ring target at a range of about 12 cm.