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A High Speed Towed Magnetic Array for In-Road Detection of Improvised Explosive…

Award Information

Department of Defense
Award ID:
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
605 Mercury Street Raleigh, NC -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2007
Title: A High Speed Towed Magnetic Array for In-Road Detection of Improvised Explosive Devices Employing Optimized Magnetic Map Differencing
Agency / Branch: DOD / ARMY
Contract: W15QKN-08-C-0061
Award Amount: $69,775.00


This proposal describes an active electromagnetic induction (EMI) sensor array that can operate at a sampling rate of 750Hz, corresponding to 1.4 inches (3.5 cm) in distance at a moving speed of 60 mph. At low frequencies (below a few kHz), an EMI sensor is basically a magnetometer that responds to susceptibility targets (i.e., ferrous objects). The main difference is that, while a magnetometer uses the earth's field as the illuminating source, an EM sensor emits its own time-varying magnetic field and, thus, has the name electro-magnetometer. An electro-magnetometer acts like a magnetometer at low frequencies but also acts like a metal detector at higher frequencies, responding to conductive targets and, therefore, can also detect nonferrous objects (aluminum, copper, brass, etc.) that a magnetometer misses. The proposed electro-magnetometer will have a bandwidth of 750 Hz - 96 kHz, for which it will behave like a magnetometer below a few kHz and a metal detector above. In this proposal, we describe our new electro-magnetometer technology that can meet all requirements for this topic: it will provide a high sampling rate (750 Hz), can have an arbitrarily wide swath, and can detect both ferrous and nonferrous targets down to 3 feet in depth for typical metal objects. The proposed sensor is based on successful commercial EMI sensors manufactured by Geophex for detecting and discriminating UXO/landmines. The primary difference will be the new high sampling rate to meet the requirements of this SBIR topic.

Principal Investigator:

I. J. Won
Principal Investigator

Business Contact:

Lynda Redner
Small Business Information at Submission:

605 Mercury Street Raleigh, NC 27603

EIN/Tax ID: 561378871
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No