Hi There,

I am interested in using the ADIS16445 for my application.

According to the spec sheet, the Linear Acceleration effect on bias is +/- 0.015deg/s/g. Does this mean a positive acceleration will give a positive bias shift and negative acceleration will give a negative bias shift? Or does it mean this parameter is a statistical one, and the effect of acceleration is only based on magnitude and not the sign.?

For example:

Position 1: X axis gyro/accelerometer is parallel with gravity(eg pointing down), accelerometer reads 1g (stationary).

Position 2: X axis gyro/accelerometer is anti-parallel to gravity (eg pointing up). accelerometer reads -1g (stationary).

What is the difference in bias on the x axis gyro in this situation? Is it:

0deg/s (no net change in acceleration magnitude)? Or

0.030deg/s (difference of 2g times the parameter)?

I hope my question is clear, your response is appreciated.

Hello drclaw,

The gyroscopes will be most sensitive when the linear acceleration is perpendicular to the axis of rotation, most of the time, but we cannot assure that this will be always be the case.

I hope that helps.

Best,

NevadaMark