"Compact Atomic Magnetometer for Magnetic Anomaly Detection (MAD-CAM)", Friday, October 23, 12:00pm, MH 606


Michael Larsen, Northrop Grumman


ABSTRACT: The Northrop Grumman Advanced PNT Systems (APS) is currently developing a new Compact Atomic Magnetometer for Magnetic Anomaly Detection (MAD-CAM) with applications to anti-submarine warfare, global navigation, planetary field mapping, etc. The system utilizes magnetic resonance to form a three axis vector magnetometer which is simultaneously capable of producing high accuracy whole field scalar measurements. This compact and integrated dual function magnetometer eliminates the need for separate scalar and vector magnetometers and leverages the stable properties of the atomic species to form a highly accurate and repeatable sensor with low noise, low drift, high bandwidth, and wide dynamic range.

NSD has leveraged the technological advancements made in developing its Nuclear Magnetic Resonance Gyroscope (NMRG) as part of the DARPA funded Navigation Grade Integrated Micro Gyro (NGIMG) program and extended that work to magnetometer development with an Internal Research and Development (IRAD) 2009-2014, and Contract Research and Development (CRAD) funding from 2010-2015. The resulting magnetometer system, like the NMRG, will have a low Size, Weight, and Power (SWaP). This presentation will show the basic concept of operation and system design, as well as shielded and unshielded prototype performanc. Applications of the MAD-CAM sensor to geolocation and INS aiding will be discussed, and the potential position resolution and geolocation accuracy presented.