Recent content by mgeerts

Aye... creating a general equation out of it is a major pain! the equations are HUGE. That's okay though, there are websites that can do that with online calculators and I think I have the answer... I'm actually just hand-calculating the scale factor to see if it all works right now. Thanks :)

okay, some new developments: I appologize that the above equation was written partially incorrectly. It should read: [x1,Y*y1,z1] x [x2, Y*y2, z2] = cos(A)*sqrt(x1x1+YYy1y1+z1z1)*sqrt(x2x2+YYy2y2+z2z2) the cross product of two vectors is equal to the cosine of the angle between them...

D H, Thank you for your reply. That is exactly how an accelerometer is calibrated in their factory, as well as the *ideal* way that an accelerometer system should be field calibrated. However, this system can not be held up in orthagonal orientation in some apparatus, which is why my problem is...

background: I am working with an accelerometer to measure the tilt angle of a mechanical device. The accelerometer reads x, y, z values that can be made into a "gravity vector". The accelerometer can NOT be assumed to mount square with the device. The accelerometer is NOT well calibrated, so the...