topic Re: way to increase Sensitivity in Sensors

way to increase Sensitivity

timronaldo — Tue, 03 Feb 2026 21:12:01 GMT

Hi, Thanks to a kind reply, 9-axi sensor board is working well. Roll, pitch, Yaw values is relatively accurate.

but our sensor board is moving very slowly. and i dont need to run more than 100deg/s

so if i can, i want to add more accuracy than fast response.

I edited acc, gyro sensor register to increase sensitivty ( acc : 2g -> g, gyro : 2000dps/LSB -> 250dps/LSB )

is there another way to increase sensitivity by using software or by using register ?

Re: way to increase Sensitivity

markpedley — Wed, 28 Oct 2015 15:49:36 GMT

Your questions covers both sensitivity (ability to detect a change in orientation) and accuracy (error in the orientation estimate). You should also be aware of sensor noise which makes it difficult to separate a real change from random noise.

The changes you've made will increase sensitivity.

The overall accuracy of the system is determined by the accuracy of the factory accelerometer calibration and the real-time dynamic magnetic calibration. Of these two, the magnetic calibration will be the largest source of error.

To answer your question, there are no easy changes to improve your performance further.

Re: way to increase Sensitivity

michaelestanley — Wed, 28 Oct 2015 15:50:49 GMT

Hopefully you changed the register settings AND the iCountsPerDegPerSec and fDegPerSecperCount in the pThisGyro structure in the gyro initialization code in drivers.c. That should be all that is required.

Re: way to increase Sensitivity

timronaldo — Wed, 28 Oct 2015 23:01:49 GMT

Thank you very much