- #1
mark2468
- 12
- 0
Hi.
I have a problem using 3-axis accelerometer. I understand that the total acceleration is the square root of (x^2 + y^2 + z^2) but I cannot determine the direction of the acceleration.
Say the device is at 45 degrees and is moved straight up, how can this vertical motion be detected.
I can determine the angle/tilt of the device using trigonometry but cannot determine the linear motion in 3d. How can this be achieved, or is there any basic formula available.
Thanks,
Mark.
I have a problem using 3-axis accelerometer. I understand that the total acceleration is the square root of (x^2 + y^2 + z^2) but I cannot determine the direction of the acceleration.
Say the device is at 45 degrees and is moved straight up, how can this vertical motion be detected.
I can determine the angle/tilt of the device using trigonometry but cannot determine the linear motion in 3d. How can this be achieved, or is there any basic formula available.
Thanks,
Mark.