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I know this question has already been asked, but all of the posts I can find are at least 2 years old, has everybody given up?

I would like to use iOS/Android devices to measure small distances (around 3D objects), is it possible to do it with an error of under 1cm?

I know double integration of acceleration values (cleaned up with sensor fusion) is not ideal, but is there any other approach really?

Thanks

aledalgrande
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  • You have hardware limit (gyro white noise). See the linked question for example to see what you can do instead. – Ali Dec 10 '13 at 21:54
  • Yep, I read that, but was wondering if anyone had a different approach. – aledalgrande Dec 10 '13 at 22:29
  • There is no other approach: **We have reached the hardware limit.** That's all there is to it. The other approaches all involve some source of external reference for the position or some domain specific assumption or better hardware (ring laser gyro for example). Or try to change the requirements in such a way that you can use orientation in your application instead of position. You can do a lot of cool stuff with just orientation. – Ali Dec 10 '13 at 22:34
  • OK, I will see to that, thanks. – aledalgrande Dec 10 '13 at 22:59

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