Is a periodic calibration of the BMI085 IMU recommended / required? If so, how often?
The design guide provides the calibration procedure (to offset for soldering and general static drift) to be performed after assembling.
Whether to perform offset calibration periodically depends on the requirements of your application.
Thank you for this answer, but could you explain a bit more how? Like which kind of applications might need it and which ones not?
In addition, my understanding is that as the sensor also has an inherent drift also when static, I would have thought it would need a periodic correction.
For example, robots, navigation equipment, etc.
You could refer the application note if you would like to do calibration.