Investigate sensor clock drift
A trig_start_record
block reports both the target logging rate (time_per_frame
), as well as the actual logging rate (time per frame actual
), which is usually up to 10% higher or lower.
The latter is not explored in detail in the sensor documentation and appears to be unused in its accompanying software.
We do currently not know if this is a constant rate difference applied to the entire logging session, or whether drift is constantly compensated, with time per frame actual
only showing the accumulated drift.