I tried to do a thermal calibration on my cubes and detected issue with 2 of them.
On the first one, the accel 2 sensor don’t start if I power the cube at a temperature is below about 30 °C. Above, it is fine. Here is a log: https://review.px4.io/plot_app?log=96f10869-bf2c-463b-b39a-1d757a403afe
This is repeatable on this cube.
Is it a known issue? Does it happen frequently?
On a second cube, I noticed a strange behavior on gyro 2: The bias is really not stable. It can change very quickly. On the figure below, we can see a quick change above 40°C and at about 73°C we can see a step change. At 73°C, the same change can be seen on accel 2 but not on the other sensors. On gyro 2, it doesn’t look like a real move but a step on the bias.
The absolute bias variation is not so big but it is quite rapid. Can it be a problem? Will it be noticeable during flight?