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

acceleration.xls (17 KB)

acceleration.xls (17 KB)