Extensive studies of in-air testing of various metal detectors have been previously performed for a wide variety of targets and operating conditions. 1,2 Using similar targets, we conducted a preliminary evaluation of a laboratory prototype wideband metal detector operating in the frequency domain (FD) under development at Quantum Magnetics. The wideband metal detector uses a small magnetoresistive (MR) sensor instead of an induction coil in the receive chain and can collect frequency response signatures of targets in the frequency band 100 Hz-150 kHz, thereby providing a more complete picture of a low metal mine response. These results suggest that wideband metal detection can play an important role in improving the false alarm rate (FAR) in a common detector platform by improving the amount of information provided to the fused algorithm process.
|Original language||English (US)|
|Title of host publication||Proceedings of SPIE - The International Society for Optical Engineering|
|Number of pages||8|
|State||Published - Dec 20 2004|