Hello, I've been looking at the raw IMU values of the intel Aero through the Mavlink inspector on QGroundControl. While the X and Y values seem to be fine, the Z axis accelerometer values seem to be off. When the drone is at rest the values should be at 0 unless if I'm mistaken, but when the Aero is completely stationary the Z accelerometer values are around -999. Is there something wrong with the way I calibrated the Aero or is this how the accelerometer is supposed to actually function. It seems to me I can only get the values close to 0 for the Z axis when I pick up the drone and turn it to its side while I'm still holding it in the air. Any help is appreciated, thank you.
Thanks for the help. So if the drone is stationary on a table the z axis accelerometer should read -999 or should it be higher? From my understanding I thought that when stationary on a level surface the accelerometer values should be more or less around 0. That's why I was caught off guard when I was getting such a low negative value.
I don't know what the conversion formula is to convert the accelerometer reading to meters/second^2, but if you plug in the readings when stationary, it should calculate about -9.2.
Accelerometer values of all zeros would mean the drone is in free-fall.
Alright so it seems that something went wrong with the calibration since when the drone is completely stationary on top of a table it is giving me a raw value of -999. Thank you for the information it was really helpful.