AnsweredAssumed Answered

Does linear acceleration effect on bias depend on sign of acceleration?

Question asked by drclaw on May 2, 2013
Latest reply on May 7, 2013 by NevadaMark

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.

Outcomes