Hi to all,
We are developing a sensor based on the TI SensorTag schematics with the MPU9250 to measure small angular rotations on an actuator. We already developed a fair deal of the firmware, but would like to improve our measurements. We would like to measure angular displacement from 0° to 6° with an accuracy of 0.1°. The actuator is pressed by humans.
We use the Y and Z axis of the accelerometer and the X axis of the gyroscope to calculate the angle. We use the gyroscope mainly to calculate the angle during the displacement. The accelerometer we use for the values at rest.
After wake up:
We have set the accelerometer range to 2G
We have set the accelerometer filter (A_DLPF_CFG) to 5 Hz
We have set the gyroscope filter (DLPF_CFG) also to 5 Hz
What further settings would you suggest? E.g. regarding the ODR settings?
Best regards,
Peter Bruinink