|
Size: 2434
Comment:
|
Size: 3511
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 17: | Line 17: |
| [Y-front] * Calibrated the LVDT. The position of the secondary coil was shifted down by 4mm. * Closed the cup of F3. Suspended the F3 by the crane with the filter chain. * Tuned the F3 again. The tuned frequency was 0.24Hz. * Cabled around the F3. Checked cable connection. Two disconnections were found and repaired. * Fixed the additional weight on the BF. * Swapped the primary coils to the dummy weight on the BF. * Lifted down the EQ stop. The end plate for F3 was sit on the frame lock. * Started the assembly of the end plate for F2. * Embedded the FR in the F2. [X-front] * Embedded the magic wands to the TF. The support point was set closing to the keystone and the counter weight was set in the outer side to obtain large torque. * The height of keystone was 20mm with a compression of 22mm. The frequency was still aroud 1Hz. * Transported the hand lifters to the cross tube area. |
|
| Line 18: | Line 35: |
| * Setting of the F2 stage in Y-front. * Dismount of the DP in X-front. * Wiring between the cryo-payload and the BF in X-front. |
Agenda/Minutes of the VIS Meeting on 2018/6/22
2018/6/22 13:30 -
Participants:
Progress report
Schedule Chart
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-A (Takahashi)
Past week report
[Y-front]
- Calibrated the LVDT. The position of the secondary coil was shifted down by 4mm.
- Closed the cup of F3. Suspended the F3 by the crane with the filter chain.
- Tuned the F3 again. The tuned frequency was 0.24Hz.
- Cabled around the F3. Checked cable connection. Two disconnections were found and repaired.
- Fixed the additional weight on the BF.
- Swapped the primary coils to the dummy weight on the BF.
- Lifted down the EQ stop. The end plate for F3 was sit on the frame lock.
- Started the assembly of the end plate for F2.
- Embedded the FR in the F2.
[X-front]
- Embedded the magic wands to the TF. The support point was set closing to the keystone and the counter weight was set in the outer side to obtain large torque.
- The height of keystone was 20mm with a compression of 22mm. The frequency was still aroud 1Hz.
- Transported the hand lifters to the cross tube area.
Plan for coming weeks
- Setting of the F2 stage in Y-front.
- Dismount of the DP in X-front.
- Wiring between the cryo-payload and the BF in X-front.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
- Ordered some mechanical parts.
- Making a list of OMMT mechanical parts.
Plan for coming weeks
- Will order OMMT mechanical parts.
- Prepare glueing jig.
LVDT Driver (Tanaka)
Past week report
Plan for coming weeks
Other site works
- 6/26: 9:00 - 12:00
- Relocation of a power line pole (telephone pole) outside of the tunnel
- A small possibility of accidental power outage
- Shutdown all the VIS control in this period.
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
- Relocation of SR assembly frame
- July 12(Thu) - 13(Fri)
- IP swap
- July 17 - 20
- 17: Separate IP and TF in the OMC area
- 18: Transport IPs from/to 2F
- 19: Assemble IP and TF for SRM (OMC area)
- 20: Assemble IP and TF for ITMY (2F)
- Main work is done by Sato-san with help from Type-B team
- Binary I/O Converter Chassis
- Share the box between WDS and Stepper motor driver box
- (PRM, PR3): 1
- (PR2, BS): 1
- (SR2): 1
- (SR3, SRM): 1
- ETMX: 1
- ETMY: 1
- ITMX: 1
- ITMY: 1
- Total: 8
Travel Plans
- Travel (Week of 6/25):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Terrence:
- Travel (Week of 7/2):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Terrence:
Next meeting
On 2018/6/29(Fri)