A Planar Electromagnetic Sensors Aided Non-destructive Testing of Currency Coins
Shironika Karunanayaka, Chinthaka Pasan Gooneratne, Subhas Chandra Mukhopadhyay, Gourab Sen Gupta · 2006
Abstract: This paper has described use of different types of planar electromagnetic sensors to test integrity of currency coins from several different countries. Three types of planar electromagnetic sensors, Mesh, Meander and Interdigital configuration have been used for testing. An effective method to test the integrity of coins using these three types of sensors has been explored. Finite Element model for mesh type sensor has been developed using FEMLAB. Some results from the finite element analysis and experimental results have been presented.