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Well you could try a crown of IR detectors and fixed position IR emitters, then the crown could act like an encoder. Would be really cheap to try and I would think that would be somewhat unique.
Accelerometers are 'bout the only thing you can use for velocity acceleration measurements.
A compass measures absolute angular position, but only in the xy plane. It is a slow and noisy sensor, but never drifts. North is always north (well, not always, but that's another lesson).
(well, not always, but that's another lesson).
Hey guys. I want to clear a bunch of things up in this thread. First, Quote from: macdad- on October 10, 2010, 08:30:29 AMAccelerometers are 'bout the only thing you can use for velocity acceleration measurements.Fixed that for you. I'm not usually a grammar cop, this one just bugged me for some reason. Accelerometers only measure lateral acceleration.
You could try something radical, like a gyroscope/electronic compass. Have a free rotating ring of magnets with an outside, fixed ring of Hall Effect sensors to measure polar angle of the player. This is more responsive compared with an electronic compass as the magnets have a much, much denser flux field than the Earth does.
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