[Ikeda, Washimi, Takahashi]
We applied new cabling to the primary coils for the BF damper. The lead wires were re-cabled on the side of the coil bobbin with the PEEK tie-anchor or the PEEK plate. Additionally, the lead wires were fixed on the coil bobbins with an adhesive (TRA-BOND 2116).
I checked the resistance and inductance of the LVDT coils for the BF damper at the feedthrough flange with the flip cable.
| Before O4a | This time | |
| 1 BF DPCH 1-6 2-7 3-8 4-9 5-G |
27.8Ω/1.069mH 25.5Ω/1.064mH 26.0Ω/1.057mH OL
|
29.5Ω/1.071mH 28.5Ω/1.062mH 33.1Ω/1.062mH ~40MΩ ~30MΩ |
| 2 BF DPCV 1-6 2-7 3-8 4-9 5-G |
24.9Ω/1.064mH 25.7Ω/1.064mH 25.3Ω/1.059mH OL
|
26.3Ω/1.063mH 30.7Ω/1.064mH 27.1Ω/1.061mH ~40MΩ ~20MΩ |
| 3 BF DSCH 1-6 2-7 3-8 4-9 5-G |
25.7Ω/8.57mH 26.4Ω/8.61mH 24.7Ω/8.56mH OL
|
28.3Ω/8.57mH 28.9Ω/8.61mH 28.3Ω/8.56mH ~40MΩ ~50MΩ |
| 4 BF DSCV 1-6 2-7 3-8 4-9 5-G |
25.3Ω/8.54mH 25.7Ω/8.53mH 24.5Ω/8.55mH OL
|
29.0Ω/8.54mH 29.5Ω/8.54mH 27.4Ω/8.55mH ~50MΩ ~40MΩ |
