Development of a monostatic multifrequency electromagnetic mine detector

Dean A. Keiswetter; Elena Novikova; I. J. Won; Thomas M. Hall; David Hanson

doi:10.1117/12.280916

22 July 1997 Development of a monostatic multifrequency electromagnetic mine detector

Dean A. Keiswetter, Elena Novikova, I. J. Won, Thomas M. Hall, David Hanson

Proceedings Volume 3079, Detection and Remediation Technologies for Mines and Minelike Targets II; (1997) https://doi.org/10.1117/12.280916
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

A new, monostatic, broadband, electromagnetic sensor, known as the GEM-3M, has been prototyped and tested at various sites containing buried unexploded ordnance and mines. The instrument consists of a pair of concentric, circular coils that transmit a continuous, broadband, digitally controlled, electromagnetic waveform. The two transmitter coils, with precisely computed dimensions and placement, create a zone of magnetic cavity at the center of the two coils. A third receiving coil is placed within this magnetic cavity such that it senses only the weak, secondary field returned from the earth and buried target(s). The mine detector is designed for ordinary soldiers, and, when completed, will have the following unique features: (1) one-man portable high-tech mine detector: intelligent, realtime data interpretation and display on a color LCD screen; (2) targets can be metallic mines, nonmetallic mines, or a disturbed soil condition; (3) detection and characterization based on visual color displays, rather than the tonal changes common to current metal detectors; (4) broadband; selectable frequencies for depth scanning suitable for regional soil conditions and geology, and; (5) all sensor coils housed in a light, circular disk - very similar in appearance to a conventional metal detector.

Citation Download Citation

Dean A. Keiswetter, Elena Novikova, I. J. Won, Thomas M. Hall, and David Hanson "Development of a monostatic multifrequency electromagnetic mine detector", Proc. SPIE 3079, Detection and Remediation Technologies for Mines and Minelike Targets II, (22 July 1997); https://doi.org/10.1117/12.280916

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