Differences between revisions 5 and 15 (spanning 10 versions)
Revision 5 as of 2018-08-10 13:07:07
Size: 2981
Comment:
Revision 15 as of 2018-08-10 15:24:51
Size: 3934
Editor: YoichiAso
Comment:
Deletions are marked like this. Additions are marked like this.
Line 3: Line 3:
2018/8/10 13:30 - 2018/8/10 13:30 - 14:38
Line 7: Line 7:
Participants: Participants: Mark, Takahashi, Enzo, Aso, Ohishi, Sato, Fujii, Fabian, Okutomi, Hirata, Lucia, Panwei, Terrence, Kozu, Hatoya, Enzo
Line 22: Line 22:
  * Dismounted the bridge frame.   * Dismounted the pre-isolaotor and the bridge frame from the foothold.
Line 36: Line 36:
  * Setting of the pre-isolator in Y-front (tuning of TF, calibration of LVDT, tuning of IP)   * Setting of the pre-isolator in Y-front (tuning of TF, calibration of LVDT, tuning of IP).
Line 49: Line 49:
 * Have ordered 34 kinds of OMMT/OSTM suspension mechanical parts.
 Will be delivered by Oct. 6th.
Line 50: Line 52:
 * Order remaining 26 kinds of parts.
Line 61: Line 63:
 * Incidents:  * Incidents: no incident
Line 64: Line 66:
  * Type-A:
  * Type-B:
  * Type-A: Crane work
  * Type-B: Crane work. Transport heavy arc weights
Line 69: Line 71:
  * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8691|Shimode-san's report]]
  * The chassis is not connected to the electric ground.
  * AEL is planning to fix the connection
  * OSEM read out path has a strange bump in the transfer function between 10Hz and 100Hz.
Line 71: Line 77:
  * VIS agrees to this proposal
Line 73: Line 80:
  * Hirata-san will design jigs to avoid the container to touch the black surface
  * Arrange with Hirose-san on how to test the SRM-M in Caltech
Line 76: Line 85:
  * Takahashi:   * Takahashi: 15-17
Line 79: Line 88:
  * Lucia:   * Lucia: 15-17
Line 81: Line 90:
  * Mark:   * Mark: 
Line 83: Line 92:
  * Enzo:
  * Terrence:
  * Enzo: 15-17
  * Terrence: 15-17
Line 87: Line 96:
  * Fujii:   * Fujii: 15-17
Line 90: Line 99:
  * Kozu (ICRR):   * Kozu (ICRR): 15-17 ?
Line 94: Line 103:
  * Takahashi:   * Takahashi: 20 - 24
Line 96: Line 105:
  * Sato:
  * Lucia:
  * Sato: 20 - 24
  * Lucia: 20 - 24
Line 99: Line 108:
  * Mark:
  * Hirata:
  * Enzo:
  * Terrence:
  * Mark: 20 - 24
  * Hirata: 20 - 24
  * Enzo: 20 - 24
  * Terrence: 20 - 23
Line 105: Line 114:
  * Fujii:   * Fujii: 20 - 24
Line 108: Line 117:
  * Kozu (ICRR):   * Kozu (ICRR): 20 - 24
Line 113: Line 122:
On 2018/8/23(Fri) On 2018/8/31(Fri)

Agenda/Minutes of the VIS Meeting on 2018/8/10

2018/8/10 13:30 - 14:38

Zoom Meeting

Participants: Mark, Takahashi, Enzo, Aso, Ohishi, Sato, Fujii, Fabian, Okutomi, Hirata, Lucia, Panwei, Terrence, Kozu, Hatoya, Enzo

Progress report

Schedule Chart

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

Type-A (Takahashi)

Past week report

[Y-front]

  • Put the ballast mass of 15.1kg on the keystone. The height of keystone was 10.0mm.
  • Calibrated the LVDT.
  • Checked the relative height of the F1 damper.
  • Dismounted the pre-isolaotor and the bridge frame from the foothold.
  • Implemented the cables between the F1 and the PI.
  • Lifted down the EQ stop into the corrugate tube. The top ring sit on the frame lock.
  • Adjusted the rotational direction and the center position of the EQ stop.
  • Installed the PI into the top chamber.
  • Hooked the wires to the receptacles. The filters were suspended from the TF.
  • Removed the wire clamp.
  • Implemented the cables from the PI to the feed through flanges.
  • Started the tuning of TF. Digital output for the coil driver did not work.

[X-front]

  • Released the BF.

Plan for coming weeks

  • Setting of the pre-isolator in Y-front (tuning of TF, calibration of LVDT, tuning of IP).
  • Setting of the pre-isolator in X-front (additional FR, yaw actuator).

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

  • Have ordered 34 kinds of OMMT/OSTM suspension mechanical parts. Will be delivered by Oct. 6th.

Plan for coming weeks

  • Order remaining 26 kinds of parts.

VIS electronics (Tanaka)

Past week report

Plan for coming weeks

Other site works

  • Sept 3 (Mon): Crane inspection 9:00 - 12:00
  • Sept 5 (Mon): Crane inspection 9:00 - 13:00
  • Sept 10(Mon): Planned power outage

Safety

  • Incidents: no incident
  • Foreseen risks
    • Type-A: Crane work
    • Type-B: Crane work. Transport heavy arc weights

Discussion

Travel Plans

  • Travel (Week of 8/13):
    • Takahashi: 15-17
    • Okutomi:
    • Sato:
    • Lucia: 15-17
    • Ishizaki:
    • Mark:
    • Hirata:
    • Enzo: 15-17
    • Terrence: 15-17
    • Shoda:
    • Ohishi:
    • Fujii: 15-17
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR): 15-17 ?
    • Arai (ICRR):
  • Travel (Week of 8/20):
    • Takahashi: 20 - 24
    • Okutomi:
    • Sato: 20 - 24
    • Lucia: 20 - 24
    • Ishizaki:
    • Mark: 20 - 24
    • Hirata: 20 - 24
    • Enzo: 20 - 24
    • Terrence: 20 - 23
    • Shoda:
    • Ohishi:
    • Fujii: 20 - 24
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR): 20 - 24
    • Arai (ICRR):

Next meeting

On 2018/8/31(Fri)

KAGRA/Subgroups/VIS/VISMinutes20180810 (last edited 2018-08-29 11:56:54 by MarkBarton)