|
Size: 2022
Comment:
|
Size: 3950
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 16: | Line 16: |
| Installation in Y-end: 12th(Mon) * Adjusted the tilt of BF by moving masses. * Checked geometry around the BF. 13th(Tue) * Adjusted the height of damper ring for the BF. * Adjusted the yaw rotation of BF. * Attached the LVDT coils and checked the movable range. * Attached the cable clamps onto the TF. * Removed the wire clamp. 14th(Wed) * Tuned the TF to frequency less than 0.2Hz changing the compression of blades. * Assembled the cables for BF damper. * Cabled from the F1 to the TF. 15th(Thu) * Made flip cables. * Cabled around the BF damper. * Tuned the LVDT driver. * Checked the assembly of geophone pods. 16th(Fri) * Prepared for the power outage. |
|
| Line 17: | Line 40: |
| * Check of the BF damper. * Cabling to the feedthroughs. * Setting of the ACCs. * Preparation in X-end. |
|
| Line 24: | Line 51: |
| * Mirror preparation * We glued the wire breakers and flags on the PR2 mirror on last Friday, but they detached when I checked on Sunday. * Therefore, we tried the gluing again on Monday, and checked Tuesday evening. But they did not fixed again. * We tried again on Thursday, and it is curing time now. This time, we have put more glue on them. * Other preparation * We assembled PR2 BF LVDTs and PRM BF LVDTs. They are all calibrated. * We almost finished cabling between the field rack and clean room for PR2. * PRM circuits are also almost ready. Not cabled yet. * PR3 measurement * Fujii-kun measured the properties of PR3. * We found the one of the coil driver does not working well. The current for PR3/PRM rack and IOO rack was not enough. The problem of the current was fixed with Nakano-kun, but the driver might have been driven with saturated status, which might cause the problem. * '''Miyakawa-san is asking us to report the circuits problem via e-mails when they occur in order to record them.''' |
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| Line 25: | Line 65: |
| * Mirror/RM hanging (if they are properly fixed...) | |
| Line 56: | Line 97: |
| * Travel (Week of 6/19): | * Travel (Week of 6/19): |
Agenda/Minutes of the VIS Meeting on 2017/6/16
2017/6/16 13:30 -
Participants:
Progress report
- Type-A:
- Type-B:
- Type-Bp:
Type-A (Takahashi)
Past week report
Installation in Y-end:
12th(Mon)
- Adjusted the tilt of BF by moving masses.
- Checked geometry around the BF.
13th(Tue)
- Adjusted the height of damper ring for the BF.
- Adjusted the yaw rotation of BF.
- Attached the LVDT coils and checked the movable range.
- Attached the cable clamps onto the TF.
- Removed the wire clamp.
14th(Wed)
- Tuned the TF to frequency less than 0.2Hz changing the compression of blades.
- Assembled the cables for BF damper.
- Cabled from the F1 to the TF.
15th(Thu)
- Made flip cables.
- Cabled around the BF damper.
- Tuned the LVDT driver.
- Checked the assembly of geophone pods.
16th(Fri)
- Prepared for the power outage.
Plan for coming weeks
- Check of the BF damper.
- Cabling to the feedthroughs.
- Setting of the ACCs.
- Preparation in X-end.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
- Mirror preparation
- We glued the wire breakers and flags on the PR2 mirror on last Friday, but they detached when I checked on Sunday.
- Therefore, we tried the gluing again on Monday, and checked Tuesday evening. But they did not fixed again.
- We tried again on Thursday, and it is curing time now. This time, we have put more glue on them.
- Other preparation
- We assembled PR2 BF LVDTs and PRM BF LVDTs. They are all calibrated.
- We almost finished cabling between the field rack and clean room for PR2.
- PRM circuits are also almost ready. Not cabled yet.
- PR3 measurement
- Fujii-kun measured the properties of PR3.
- We found the one of the coil driver does not working well. The current for PR3/PRM rack and IOO rack was not enough. The problem of the current was fixed with Nakano-kun, but the driver might have been driven with saturated status, which might cause the problem.
Miyakawa-san is asking us to report the circuits problem via e-mails when they occur in order to record them.
Plan for coming weeks
- Mirror/RM hanging (if they are properly fixed...)
IMMT (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Plan for coming weeks
Other site works
- Preparation for the power outage by 6/16
- Preparation for the PR floor re-work by 6/16
- 6/19: Power outage
- 6/21: Safety lecture after the morning briefing
- 6/21 11:30 - 12:30: Crane inspection
6/20 -24: BS & PR booth: lighting installation (BS and PR2 area 6/23 afternoon)
- 6/22-23: PR area: floor fix
- 6/26-30: PR area: stainless steel flooring
- 6/28: Maintenance of the rapid charger for the electric vehicles
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
Travel Plans
- Travel (Week of 6/19):
- Takahashi: 20-23
- Shoda: 20-23
- Mark: 19-23
- Fabian: 20-22
- Okutomi: 20-23
- Fujii:
- Ishizaki: 20-23
- Hirata: 20-23
- Sato: 20-23
- Enzo: 20-22
- Ohishi:
- Tanaka:
- Akiyama(Hosei): 20-23
- Hashimoto(Hosei): 20-22
- Travel (Week of 6/26):
- Takahashi:
- Shoda:
- Mark:
- Fabian:
- Okutomi:
- Fujii:
- Ishizaki:
- Hirata:
- Sato:
- Enzo:
- Ohishi:
- Tanaka:
- Akiyama(Hosei):
- Hashimoto(Hosei):
Next meeting
On 2017/6/23(Fri) Next F2F: 6/30(Fri)