<p>The purpose of this thesis was to design an electrical system for use in a ballistic test at the Swedish National laboratory of forensic science (SKL). The detector unit would use four main parts: coilsystem, transmitter, reciever and indicator. The coilsystem would be based on a balanced system using three coils. One that creates a magneticfield and the other two will sense the differences when a metallobject is in the coilsystem. </p><p>This report starts out by investigating possible solutions for this specific task followed by a description of the physics that the metaldetector use. Then a description of the design of a scaled metaldetector model followed by testing and evalution. The results are then beeing used when the design and testing of the full scale detector. The possible solutions for the transmitter-, reciver- and indicator circuit are then beeing described and also simulated. Last in this report a evalution and suggestions of further improvments are presented.</p>
| Identifer | oai:union.ndltd.org:UPSALLA/oai:DiVA.org:liu-2542 |
| Date | January 2004 |
| Creators | Kiuru, Tobias |
| Publisher | Linköping University, Department of Electrical Engineering, Institutionen för systemteknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, text |
| Relation | LiTH-ISY-Ex, ; 279 |
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