Magneto-Inductive Technology Overview; Andrew Leuzinger & Andrew Taylor, February, 2010
Overview of how PNI's magneto-inductive (MI) sensor technology works, with a discussion of some key advantages that set MI apart from other magnetic sensing technologies.
Tilt-Induced Heading Error in a 2-Axis Compass; Andrew Leuzinger, July 2010
Discusses how a 2-axis compass works, with further explanation of earth's magnetic field inclination (dip angle) and the effect of this inclination on 2-axis compass heading.
Local Magnetic Distortion Effects on 3-Axis Compassing; Michael Garton, Anthony Wutka & Andrew Leuzinger, July 2009
Reviews sources of localized magnetic distortion and how to correct for these distortions to obtain accurate compass readings. The paper also provides a review of the tests performed at PNI to measure the effectiveness of magnetic distortion correction algorithms on 3-axis compasses from 3 different companies.
Compassing in Harsh Environments: Correcting for Magnetic Field Distortion; by Andrew Leuzinger, October 2010
Today's electronic compasses are built to withstand harsh environments - mechanical shock, extreme temperature and battlefield conditions. Yet the most challenging environment for compassing are the permanent and transitory magnetic field distortions encountered in everyday situations. This article discusses the recent developments in software to overcome transitory magnetic field distortions.
