Resolved! Which techniques are used in IIS3DWB ST's libraries (Motion_SP) to determine velocity(mm/s) from acceleration measurements(g) ? Theoretical foundation from functions "MotionSP_SwSpeedRmsFilter" and "MotionSP_TD_SpeedEvalFromCircBuff".
There is too much uncertainty ? Would be possible to use this measurements to evaluate mechanical vibration according to ISO10816-3 ?