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 *Delivered mechanical parts were almost assembled.
 *Did cabling from rack to satellite box, and inside chamber.
 *OMC was installed by TiTech people.
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 *glue magnets and standoff of OMMT1.
 *cabling (Make flipper, and pico-motor cables)
 *hang OMMT1 mirror from IM.

Agenda/Minutes of the VIS Meeting on 2018/10/19

2018/10/19 13:30 -

Zoom Meeting

Participants:

Progress report

Schedule Chart

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

Type-C: (XLSX)

Type-A (Takahashi)

Past week report

[X-front]

  • Corrected the tilt of IP base by jack up/down of the corn bellows.
  • Adjusted the position of IP by the stepping motors.
  • Aligned the TM by the yaw picomoter in the BF.

[X-end]

  • Corrected the tilt of IP base by jack up/down of the corn bellows.
  • It was difficult to adjust the position of IP by the stepping motors due to the tight stopper setting.
  • Vented the EXV chamber and open the top chamber.
  • Released the stopper for IP more.
  • Adjusted the position of IP by hand/stepping motors.
  • Aligned the TM by the yaw picomoter in the BF.
  • Closed the top chamber and started the evacuation.
  • Followed the drift of IP position by the stepping motors during the evacuation.

[Y-front]

  • Investigated the 70Hz peak in the spectrum of IP LVDTs. Changed the modulation frequency from 10,000Hz to 10,003Hz.
  • Designing the yaw stepping motor mechanism. We need to procure 4 more motors.

Plan for coming weeks

[Y-front]

  • Replacement of the FR parts for BF. (10/22, 23)

[Y-end]

  • Assembly of the geophone pods and installation. (10/24)

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

  • Delivered mechanical parts were almost assembled.
  • Did cabling from rack to satellite box, and inside chamber.
  • OMC was installed by TiTech people.

Plan for coming weeks

  • glue magnets and standoff of OMMT1.
  • cabling (Make flipper, and pico-motor cables)
  • hang OMMT1 mirror from IM.

VIS electronics (Tanaka)

Past week report

Plan for coming weeks

Other site works

Safety

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

Discussion

Travel Plans

  • Travel (Week of 10/22):
    • Takahashi:
    • Okutomi:
    • Sato:
    • Lucia:
    • Fabian:
    • Mark:
    • Hirata:
    • Enzo:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):
  • Travel (Week of 10/29):
    • Takahashi:
    • Okutomi:
    • Sato:
    • Lucia:
    • Fabian:
    • Mark:
    • Hirata:
    • Enzo:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):

Next meeting

On 2018/10/26(Fri)

KAGRA/Subgroups/VIS/VISMinutes20181019 (last edited 2018-10-19 15:10:16 by YoichiAso)