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Size: 2752
Comment:
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Size: 3486
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 45: | Line 45: |
| * PR3 mirror hanged * We have experienced the wire slipping again. I discussed with Ikenoue-san for the update today. * This time, the pitch drift of the mirror was not so large. But the mirror is not perfectly aligned. The mirror is now tilting by 1/250 in desired direction. * RM hanged * We used the new mirror box with the shorter height of the mirror box. It might be better if we have longer guide poles, though we could removed the rid without any accident. * EQ stops on the TF stage were also assembled. * We are trying to measure the TFs. But the measurement does not look good. We will try again next Monday. * BF GAS LVDT was replaced. |
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| Line 46: | Line 55: |
| * Measure TFs of the RM. * Set the BF and hang IM and IRM. |
Agenda/Minutes of the VIS Meeting on 2017/4/7
2017/4/7 13:30 -
Participants:
Progress report
Type-A (Takahashi)
Past week report
Installation in Y-end:
3th(Mon)
- Lifted down the maraging wire for cryo-payload into the cryo-shield.
4th(Tue)
- Reinstalled the maraging wire for cryo-payload.
- Assembled the EQ stop for F2.
- Assembled the cables for F2.
5th(Wed)
- Assembled the cables for F2-F3.
- Put the F2 base onto the end plate of EQ stop with the maraging wire for F3.
- Released the keystone of F2.
6th(Thu)
- Tuned the F2. The two ballast weights were taken from inside the F2.
- Adjust the height of release sensor for F2.
- Calibrated the LVDT on F2.
Plan for coming weeks
- Finish the cabling between F2 and F3.
- Lift down the F3 stage into the corrugate tube.
- 10th(Mon): Shipping of the items for X-end by Ishizaki (Mitaka).
- 11th(Tue): Delivery of the items (Kamioka). Preparation for the transportation to X-end.
- 12th(Wed): Transportation to X-end by MESCO with Ishizaki.
- 13th(Thr): Preparation for the replacement of hoist.
- 14th(Fri): Replacement of the hoist in Y-end.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
- PR3 mirror hanged
- We have experienced the wire slipping again. I discussed with Ikenoue-san for the update today.
- This time, the pitch drift of the mirror was not so large. But the mirror is not perfectly aligned. The mirror is now tilting by 1/250 in desired direction.
- RM hanged
- We used the new mirror box with the shorter height of the mirror box. It might be better if we have longer guide poles, though we could removed the rid without any accident.
- EQ stops on the TF stage were also assembled.
- We are trying to measure the TFs. But the measurement does not look good. We will try again next Monday.
- BF GAS LVDT was replaced.
Plan for coming weeks
- Measure TFs of the RM.
- Set the BF and hang IM and IRM.
IMMT (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Plan for coming weeks
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
- VIS budget
Budget sheet: https://1drv.ms/x/s!Ajrs5Q_CgYCOhDmdIfYLxfXEMLxs
Budget sheet from SEO: https://1drv.ms/x/s!Ajrs5Q_CgYCOhEJ9sWy16ITB4eII
- RMS speed requirements from MIF
Travel Plans
- Travel (Week of 4/10):
- Takahashi: 10-14
Shoda:10-14
- Mark: 10-14
- Fabian: 10-14
- Okutomi: 10-14
- Fujii:
- Ishizaki: 11-14
- Hirata: 11-14
- Sato: 10-14
- Enzo: 10-14
- Ohishi:
- Tanaka:
- Perry: 10-14
- Sekiguchi(Hosei):11-14
- Hirayama(Hosei):11-14
- Travel (Week of 4/17):
- Takahashi:
- Shoda:
- Mark:
- Fabian:
- Okutomi:
- Fujii:
- Ishizaki:
- Hirata:
- Sato:
- Enzo:
- Hashimoto (Hosei Univ.):
- Ohishi:
- Tanaka:
Next meeting
On 2017/4/14(Fri)