Differences between revisions 2 and 4 (spanning 2 versions)
⇤ ← Revision 2 as of 2018-08-03 13:32:40 →
Size: 2571
Editor: naohisa.sato
Comment:
← Revision 4 as of 2018-08-03 13:46:32 → ⇥
Size: 2577
Editor: naohisa.sato
Comment:
Deletions are marked like this. Additions are marked like this.
Line 22: Line 22:
- Magnetic damper ring was placed on F1.
- EQ-Stop structure was extended to the top ring.
- We installed bridge frame on the scaffoldings.
- We combined IP and TF.
 - Magnetic damper ring was placed on F1.
 - EQ-Stop structure was extended to the top ring.
 - We installed bridge frame on the scaffoldings.
 - We combined IP and TF.

Agenda/Minutes of the VIS Meeting on 2018/8/3

2018/8/3 13:30 -

Zoom Meeting

Participants:

Progress report

Schedule Chart

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

Type-A (Takahashi)

Past week report

[IYV]

1.Assembling Pre-isolator

We prepared for pre-isolator installation.

  • - Magnetic damper ring was placed on F1. - EQ-Stop structure was extended to the top ring. - We installed bridge frame on the scaffoldings. - We combined IP and TF.

We replaced the top filter blades. - In order to replace the blades,we removed all blades from TF. - We bent 6 new blades and attached it to the Top Filter.

We attached the following equipment to the PI. - Connectors, Auxiliary blade (for F1 FR), Fishing Rod for TF. But FR was not completed due to lack of parts.

2.Installing Pre-isolator

- We put the pre-isolator on the bridge frame and hanged F1 or less.

Result of hanging F1 or less

  • Height of TF keystone: 1mm Height of F1 from EQ-plate: 67.5, 79, 80 Distance between bottom of IP and Top-ring: 5mm (initial 8mm)

TF was able to lift F1 or less.

3.Calibration of the LVDTs for BF damper.

  • ---

Plan for coming weeks

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

Plan for coming weeks

VIS electronics (Tanaka)

Past week report

Plan for coming weeks

Other site works

  • Sept 10(Mon): Planned power outage

Safety

  • Incidents:
  • Foreseen risks
    • Type-A:
    • Type-B:

Discussion

Travel Plans

  • Travel (Week of 8/6):
    • Takahashi:
    • Okutomi:
    • Sato:
    • Lucia:
    • Ishizaki:
    • Mark:
    • Hirata:
    • Enzo:
    • Terrence:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):
  • Travel (Week of 8/13): KAGRA site will be closed on 8/13 and 8/14
    • Takahashi:
    • Okutomi:
    • Sato:
    • Lucia:
    • Ishizaki:
    • Mark:
    • Hirata:
    • Enzo:
    • Terrence:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):

Next meeting

On 2018/8/10(Fri)

KAGRA/Subgroups/VIS/VISMinutes20180803 (last edited 2018-08-03 16:02:53 by MarkBarton)