The data has the following strcture:

The .mat file contains 2 variables: targeted and data_messung
- targeted only contains the meta data of the measurements which we aimed for (start/end rotor speed, measurement time, etc.)
- data_messung contains the measurement data

The data is listed in the matrix data_messung.data. Note that we use the coordinates y and z in the publication.
The test-rig uses the coordinates x and y instead. We use the convention of the paper here.

Note that we did not connect any power amplifiers to the second bearing plane (Bearing 2). 


The columns correspond to the following data:

1. Rotor speed; 
		Differentiation of the current angle with and an additional moving average for smoothing which 
		causes a time delay. We used an offline filter to estimate the current rotor speed for the 
		publications which negates this time delay

2. Encoder index;
		Index of the encoder from 0 to 1999; You can map 0 to 2 pi to the index. This is used to compute the 
		instantanous angle of the rotor

3. Displacement in mm of Disc 1 in y-direction without runout compensation;

4. Displacement in mm of Disc 1 in z-direction without runout compensation;

5. Displacement in mm of Disc 2 in y-direction without runout compensation;

6. Displacement in mm of Disc 2 in z-direction without runout compensation;

7. Displacement in mm of Disc 1 in y-direction with runout compensation;

8. Displacement in mm of Disc 1 in z-direction with runout compensation;

9. Displacement in mm of Disc 2 in y-direction with runout compensation;

10. Displacement in mm of Disc 2 in z-direction with runout compensation;

11. Force in N of Bearing 1 in y-direction without highpass filter;

12. Force in N of Bearing 1 in z-direction without highpass filter;

13. Force in N of Bearing 2 in y-direction without highpass filter;

14. Force in N of Bearing 2 in z-direction without highpass filter;

15. Force in N of Bearing 1 in y-direction with highpass filter;

16. Force in N of Bearing 1 in z-direction with highpass filter;

17. Force in N of Bearing 2 in y-direction with highpass filter;

18. Force in N of Bearing 2 in z-direction with highpass filter;

19. Piezo voltage in V of active bearing (Bearing 1) in y-direction, targeted by realtime system;

20. Piezo voltage in V of active bearing (Bearing 1) in z-direction, targeted by realtime system;

21. Piezo voltage in V of active bearing (Bearing 1) in y-direction, targeted by realtime system;

22. Piezo voltage in V of active bearing (Bearing 1) in z-direction, targeted by realtime system;

23. Piezo voltage of controller in V for active bearing (Bearing 1) in y-direction, targeted by realtime system;

24. Piezo voltage of controller in V for active bearing (Bearing 1) in z-direction, targeted by realtime system;

25. Piezo voltage of controller in V for passive bearing (Bearing 2) in y-direction, targeted by realtime system;

26. Piezo voltage of controller in V for passive bearing (Bearing 2) in z-direction, targeted by realtime system;

27. Piezo voltage in V of active bearing (Bearing 1) in y-direction, from monitoring output of power amplifier;

28. Piezo voltage in V of active bearing (Bearing 1) in z-direction, from monitoring output of power amplifier;

29. Piezo voltage in V of active bearing (Bearing 2) in y-direction, from monitoring output of power amplifier; NOT CONNECTED

30. Piezo voltage in V of active bearing (Bearing 2) in z-direction, from monitoring output of power amplifier; NOT CONNECTED

31. Piezo current in A of active bearing (Bearing 1) in y-direction, from monitoring output of power amplifier; 

32. Piezo current in A of active bearing (Bearing 1) in y-direction, from monitoring output of power amplifier; 

33. Piezo current in A of active bearing (Bearing 2) in y-direction, from monitoring output of power amplifier; NOT CONNECTED

34. Piezo current in A of active bearing (Bearing 2) in y-direction, from monitoring output of power amplifier; NOT CONNECTED

35. Piezo voltage of IFF controller in V for active bearing (Bearing 1) in y-direction, targeted by realtime system; Only for emergency stop (automatic activation; e.g. during semi-passive run-out); otherwise not used

36. Piezo voltage of IFF controller in V for active bearing (Bearing 1) in z-direction, targeted by realtime system; Only for emergency stop (automatic activation; e.g. during semi-passive run-out); otherwiese not used

37. Piezo voltage of IFF controller in V for passive bearing (Bearing 2) in y-direction, targeted by realtime system;  Only theoretical values, not used

38. Piezo voltage of IFF controller in V for passive bearing (Bearing 2) in z-direction, targeted by realtime system;  Only theoretical values, not used

39. Time of the realtime system in seconds