Compass Error Measurement

Wednesday, April 14, 2010


Today we started investigating a possible error in our compass measurements by recording the INS heading and GPS coordinates. Basically, we mounted the INS and GPS on a piece of plywood, hooked up a laptop and car battery, and threw the whole setup into a non-ferrous plastic radio flyer wagon.



This is the path recorded by the GPS as we went around and across the football field. The goal was to get data in as many directions as possible, but long enough runs in each direction so that we'd get good averages.