1. Measurement of “new” SPS-WS
N. Biancacci,
F. Caspers,
J. Kuczerowski,
E. Piselli,
C. Vollinger & others
(for the impedance team)
22/09/2018

2. Measurements were carried out For different “states of assembly”:
0deg
90deg
45deg
135deg
180deg
Measurements were carried out
For different “states of assembly”:
Empty Drum,
Drum with fork and Cu-wire,
Drum with fork, Cu-wire and
“Fritz”-wire (W-wire);
Ferrites (TT2-111R).
2. In different fork positions;
Only measurements with fork are compared.
22/09/2018
Christine Vollinger, BE/RF

3. Christine Vollinger, BE/RF
Measurement of “new” SPS-WS
Measurement with probes &
Connectors on the fork (via hybrid)
22/09/2018
Christine Vollinger, BE/RF

4. Christine Vollinger, BE/RF
Goal of the Measurements:
1. To provide data for benchmarking of simulations.
Measurements to be carried out on the structure in different configurations;
Measurement with ferrites in a position “easy-to-place”, so that simulations with ferrite materials can be carried out.
2. Find mitigating measures to reduce the impedance from simulation (e.g. position of W-wire or a good ferrite location).
W. Andreazzi
22/09/2018
Christine Vollinger, BE/RF

5. Christine Vollinger, BE/RF
Measurements for Fork Position = 0 deg
22/09/2018
Christine Vollinger, BE/RF

6. Christine Vollinger, BE/RF
Measurements for Fork Position = 45 deg
22/09/2018
Christine Vollinger, BE/RF

7. Christine Vollinger, BE/RF
Measurements for Fork Position = 90 deg
22/09/2018
Christine Vollinger, BE/RF

8. Christine Vollinger, BE/RF
Measurements for Fork Position = 135 deg
22/09/2018
Christine Vollinger, BE/RF

9. Christine Vollinger, BE/RF
Measurements for Fork Position = 180 deg
22/09/2018
Christine Vollinger, BE/RF

10. Christine Vollinger, BE/RF
Calculated Qs (unloaded) for 1st and 2nd Resonance
What does that mean?
22/09/2018
Christine Vollinger, BE/RF

11. Christine Vollinger, BE/RF
Calculated Qs (unloaded) for 2nd Resonance
TBC that this is really the unloaded Q…;
For all fork positions, both measures, i.e. the “Fritz”-wire and the ferrite result in a reduction of Qunloaded ;
This is our expectation & the effect that we wanted (?)
22/09/2018
Christine Vollinger, BE/RF

12. Christine Vollinger, BE/RF
Calculated Qs (unloaded) for 1st Resonance
TBC that this is really the unloaded Q…;
For the 0deg position, almost no effect on the Q is observed.
The “Fritz”-wire and the ferrite both reduce the Q for all resonances except for the 2nd. Why?
Again: Except for the 45deg position – this is our expectation & the effect that we wanted (?)
What about all other resonances?
22/09/2018
Christine Vollinger, BE/RF

13. Christine Vollinger, BE/RF
Calculated Qs (unloaded) for 1st Resonance
22/09/2018
Christine Vollinger, BE/RF

14. Christine Vollinger, BE/RF
Measurement (Drum with Cu-wire at 45 deg Fork Position)
Measurement (Drum with Cu-wire and Ferrite at 0 deg Fork Position)
22/09/2018
Christine Vollinger, BE/RF