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Thread: Accelerometer - alignment

  1. #1 Accelerometer - alignment 
    Junior Member
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    Sep 2014
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    Hi there

    I have some readings from an accelerometer however I now realise that it was misaligned and was at a tilt of 18 degrees in the z direction and rotated 5 degrees in the x y plane. How can I correct my readings?
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  2. #2  
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    Quote Originally Posted by Sam Smith View Post
    Hi there

    I have some readings from an accelerometer however I now realise that it was misaligned and was at a tilt of 18 degrees in the z direction and rotated 5 degrees in the x y plane. How can I correct my readings?
    There's no universally correct answer, other than "it depends". Is this a standalone unit, or is it a module inside of some other widget? If the latter, there are almost always a set of calibration registers to correct for errors. Whether those are easily accessed by a user is a different matter, as doing a full calibration can require the application of accurately known and controlled accelerations. I'd hop online and google to see if yours is readily adjusted.

    ETA: pikobedy's reply made me re-read your post. I see that you may be working on a homework problem. Is that so? If that is the case, then you are basically asking about trig. Please post back and let us know whether that is your question.
    Last edited by tk421; 09-29-2014 at 12:38 AM.
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  3. #3  
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    Quote Originally Posted by Sam Smith View Post
    Hi there

    I have some readings from an accelerometer however I now realise that it was misaligned and was at a tilt of 18 degrees in the z direction and rotated 5 degrees in the x y plane. How can I correct my readings?
    Please describe the application for the accelerometer and how it's used.
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