How to remove Gravity factor from Accelerometer readings .

[PD_learner]

 I am using the industrial IIS2DH accelerometer in my vibration analysis product. I need only pure acceleration values in all directions. So at any state if the device is stable (or in constant speed), it should give (0.0,0.0,0.0) roughly.

[Ozone]

Measure at rest, store as calibration value, and subtract at runtime.

[Eleon BORLINI]

plz check also this thread, if can be of your interest. You could apply the embedded IIS2DH HP filter (CTRL_REG2 (21h) bits, see p.34 of the datasheet), if you need to monitor only acceleration variation above a certain frequency. But as per similar threads, Ozone suggestion must be the preferred one. Regards