I have recorded these 2 signals coming from a shot. Acquisition parameters are the same; the board containing ADXL354 is fixed firmly to an externa box, in strong contact to ground.
The differance between signals is great, i think my procedure has something wrong. I can post the box and the schematics. (mems axis shown is the axis perpendicular to ground)
[edited by: EnzoTernavasio at 10:01 AM (GMT -4) on 14 Sep 2020]