Metal Detector Excited By Frequency-Swept Signal

Metrology and Measurement Systems

Jakub Svatoš¹  Josef Vedral¹  Pavel Fexa¹ 

关键词: Metal detection;    Polyharmonic signals;    Frequency Sweep;    Modelling of electromagnetic induction;    Analog signal processing;   

DOI  :  10.2478/v10178-011-0006-3

来源: Versita

【 摘 要 】

This paper describes the theoretical background of electromagnetic induction from metal objects modelling. The response function of a specific case of object shape - a homogenous sphere from ferromagnetic and non-ferromagnetic material is introduced. Experimental data measured by a metal detector excited with a linearly frequency-swept signal are presented. As a testing target various spheres from different materials and sizes were used. These results should lead to better identification of the buried object.

【 授权许可】

Unknown