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Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 4, Issue 4, Pages 675-685, DOI: https://doi.org/10.21307/ijssis-2017-462
License : (CC BY-NC-ND 4.0)
Received Date : 11-November-2011 / Accepted: 03-December-2011 / Published Online: 03-December-2011
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.
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