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Re: Inertial navigation systems
I'd definately agree that the accelerometers were the weak link in the INS system. We didn't get much more than 10 or 15 seconds of good postition data from them, and it took under an hour for the INS to report a velocity greater than the speed of light while sitting on a table. The gyros (which were not kit gyros, as the 75 degree/sec limit of those wasn't enough for us), however, were much more accurate, and should make a return on this year's robot.
Commercial INS systems, which are accurate over a time period of hours, can cost tens of thousands of dollars, and for good reason.
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Zan Hecht
Scorekeeper: '05 Championship DaVinci Field/'10 WPI Regional
Co-Founder: WPI-EBOT Educational Robotics Program
Alumnus: WPI/Mass Academy Team #190
Alumnus (and founder): Oakwood Robotics Team #992
"Life is an odd numbered problem — the answer isn't in the back of the book." — Anonymous WPI Student
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