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Unread 01-22-2006, 07:13 AM
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Leav Leav is offline
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Accelerometer integration

Hey,
Despite this thread, I want to use accelerometers for a bit of navigation this year.

In the attached excel spreadsheet, you can see that using the angles 0degrees 45degrees and 90degrees, I have found that the relation between the real acceleration and the output value is non linear and appears to be something like:
y=(a^3)/12+500
where a is the real acceleration and y is the sensor value.

My questions:
1)How can I convert this to a more linear connection? (do i need to?)
2)How do I integrate the values over time to get speed and more importantly distance?


Thanks!
-Leav
Attached Files
File Type: xls acceleration.xls (17.0 KB, 162 views)
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Last edited by Leav : 01-22-2006 at 07:14 AM. Reason: added excel file
 


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