08-28-2020, 09:31 PM
(This post was last modified: 08-28-2020, 10:11 PM by Jens Noriʇzsɔɥ.)
Have you checked against x- and y-direction if “g” is at the same level then? There could be multiple ways that the values are off: shifted, scaled, individual axes…
You could have a look into our phyphox.org/sensordb, select then the line of your 6s, and click through the “(i)nfo circles” below the table. A value of 9.9 does not seem to be that unlikely as a result:
[edit: moved inline picture into an attachment]
There are also graphs for standard deviations…
Acceleration without g is essentially a blackbox provided by the smartphone OS. Gyroscope and magnetometer are likely to be taken into account – in iDevices at least. I have no idea if an error in these sensors could account for such a systematic.
You could have a look into our phyphox.org/sensordb, select then the line of your 6s, and click through the “(i)nfo circles” below the table. A value of 9.9 does not seem to be that unlikely as a result:
[edit: moved inline picture into an attachment]
There are also graphs for standard deviations…
Acceleration without g is essentially a blackbox provided by the smartphone OS. Gyroscope and magnetometer are likely to be taken into account – in iDevices at least. I have no idea if an error in these sensors could account for such a systematic.