Differences between revisions 1 and 7 (spanning 6 versions)
⇤ ← Revision 1 as of 2017-05-17 21:13:11 →
Size: 1578
Editor: YoichiAso
Comment:
← Revision 7 as of 2017-05-19 12:48:21 → ⇥
Size: 3166
Editor: AyakaShoda
Comment:
Deletions are marked like this. Additions are marked like this.
Line 24: Line 24:
 * SF was set on the Traverser, and the chain below BF was suspended from SF (in the week of 5/8)
 * BF weight and tilt was adjusted
  * We tuned the weight according to the height of the keystone.
  * Balanced the BF roughly according to the tilt of IRM. After that, we tuned more using the picomotors according to the IM OSEM signals.
 * We found the BF FR was not moving well.
  * We opened the BF cap a little bit by hanging from the SF, and checked that the BF FR still has the actuation range.
  * The problem was wiring. We found that the resistance between 2-7 pin was much high (usually ~9 Ω just before the driver, but resistance between 2-7 was ~60 kΩ).
   We fixed the cabling, and it started working again!!
  * The cap was closed after checking, and cabling was fixed.
 * Two of the old OSEM flags on PR2 cannot be removed so far. The gluing schedule was changed.
Line 25: Line 36:
 * Tilt alignment of BF & IM
 * Installation into the tank.
Line 28: Line 41:
 * Checked the designed IMMT mirror position in IOO coordinate.
Line 29: Line 43:
 * Revise magnet fixture jig drawings
 * Have a meeting with FCL at Mitaka on 26th morning.
Line 32: Line 47:
  *Start mounting on the 19 inch rack(Main 4ch WDS box).--> Complete(the wiring is still).
  *Start formulating an experimental plan(First test) at the KAGRA site.-->
     *Draft plan[[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0067/E1706737/001/Project%20WDS%20Experiment%20plan%20Drifts%20version%20170516.pdf|PDF(JGW-E1706737)]]
Line 33: Line 52:
  *Start creation of extended I/O PCB(plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->Ongoing.
Line 58: Line 78:
  * Ohishi:   * Ohishi: 25 night -26 (Mitaka)

Agenda/Minutes of the VIS Meeting on 2017/5/19

2017/5/19 13:30 -

Participants:

Progress report

Schedule Chart : (PDF,MPP)

  • Type-A:
  • Type-B:
  • Type-Bp:

Type-A (Takahashi)

Past week report

Plan for coming weeks

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

  • SF was set on the Traverser, and the chain below BF was suspended from SF (in the week of 5/8)
  • BF weight and tilt was adjusted
    • We tuned the weight according to the height of the keystone.
    • Balanced the BF roughly according to the tilt of IRM. After that, we tuned more using the picomotors according to the IM OSEM signals.
  • We found the BF FR was not moving well.
    • We opened the BF cap a little bit by hanging from the SF, and checked that the BF FR still has the actuation range.
    • The problem was wiring. We found that the resistance between 2-7 pin was much high (usually ~9 Ω just before the driver, but resistance between 2-7 was ~60 kΩ).
      • We fixed the cabling, and it started working again!!
    • The cap was closed after checking, and cabling was fixed.
  • Two of the old OSEM flags on PR2 cannot be removed so far. The gluing schedule was changed.

Plan for coming weeks

  • Tilt alignment of BF & IM

  • Installation into the tank.

IMMT (Ohishi)

Past week report

  • Checked the designed IMMT mirror position in IOO coordinate.

Plan for coming weeks

  • Revise magnet fixture jig drawings
  • Have a meeting with FCL at Mitaka on 26th morning.

Watchdog system (Tanaka)

Past week report

  • Start mounting on the 19 inch rack(Main 4ch WDS box).--> Complete(the wiring is still).

  • Start formulating an experimental plan(First test) at the KAGRA site.-->

Plan for coming weeks

  • Start creation of extended I/O PCB(plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->Ongoing.

Safety

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

Discussion

  • JPS presentation

Travel Plans

  • Travel (Week of 5/22):
    • Takahashi: 24 - 25
    • Shoda: 22 - 25
    • Mark: 22 - 25
    • Fabian: 22 - 25
    • Okutomi: 22 - 25
    • Fujii:
    • Ishizaki: 22 - 25
    • Hirata: 22 - 25
    • Sato: 22 - 25
    • Enzo: 22 - 25
    • Ohishi: 25 night -26 (Mitaka)
    • Tanaka:
    • Sekiguchi(Hosei): 23 - 25
    • Hirayama(Hosei): 23 - 25
  • Travel (Week of 5/29):
    • Takahashi:
    • Shoda:
    • Mark:
    • Fabian:
    • Okutomi:
    • Fujii:
    • Ishizaki:
    • Hirata:
    • Sato:
    • Enzo:
    • Ohishi:
    • Tanaka:
    • Sekiguchi(Hosei):
    • Hirayama(Hosei):

Next meeting

On 2017/5/26(Fri) F2F in Mitaka

KAGRA/Subgroups/VIS/VISMinutes20170519 (last edited 2017-05-19 16:07:00 by YoichiAso)