Differences between revisions 1 and 9 (spanning 8 versions)
⇤ ← Revision 1 as of 2025-01-30 10:11:00 →
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Editor: RyutaroTakahashi
Comment:
← Revision 9 as of 2025-01-31 10:30:42 → ⇥
Size: 1349
Editor: RyutaroTakahashi
Comment:
Deletions are marked like this. Additions are marked like this.
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Date: 2025/1/31 10:00- Date: 2025/1/31 10:00-10:30
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Participants: Participants: Ushiba, Washimi, Yokozawa, Tanaka, Sato, Takahashi, Miyoki
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  * Total (duct + TM) height change was 1~3mm.   * Total (duct + cryostat) height change was 1~3mm.
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  * Preparing for the stand-alone test bench with DGS in Mitaka. Ikeda-san has set the DGS up in the ATC lab.   * Preparing for the stand-alone test bench with DGS in Mitaka. Ikeda-san has set the DGS up in the ATC lab.
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  * Asking Tanaka-san who will make a prototype.   * Tanaka-san will make a prototype.
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  * Asking Marutsu to make geophone pre-amp boards.
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  * Fixing the STM in the IFI chamber is planned for late February.   * Fixing the STM is planned for late February.
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 * Task list for authorship 2025.
  * Management of the group
  * Commissioning of the suspensions toward O4c
  * Maintenance of the suspensions during O4c
  * Preparation for upgrade toward O5
  * Control upgrade
  * Software development

Contents

  1. VIS Meeting
    1. Topics
      1. Type-A
      2. Type-B/Bp
      3. Type-C
      4. R&D
    2. Discussion
    3. Next meeting

VIS Meeting

Date: 2025/1/31 10:00-10:30

Zoom

Participants: Ushiba, Washimi, Yokozawa, Tanaka, Sato, Takahashi, Miyoki

Topics

Type-A

  • Height adjustment during the cooling.
    • Total (duct + cryostat) height change was 1~3mm.
  • ACCs for the IP controls.
    • Preparing for the stand-alone test bench with DGS in Mitaka. Ikeda-san has set the DGS up in the ATC lab.

Type-B/Bp

  • Enclosure for the SG card into an independent box.
    • Tanaka-san will make a prototype.
  • Yaw damper for Type-B.
    • One set should be tested in SRM around autumn 2025.
  • IP for Type-Bp.

Type-C

  • Active isolation table for OMC.
    • Sato-san is checking the parameters of the TMS isolator for OMC. He calculated the blade springs.
    • Asking Marutsu to make geophone pre-amp boards.
  • Vibration in the IFI chamber
    • Fixing the STM is planned for late February.
  • Small Type-C suspensions with mini-GAS.

R&D

Discussion

  • Task list for authorship 2025.
    • Management of the group
    • Commissioning of the suspensions toward O4c
    • Maintenance of the suspensions during O4c
    • Preparation for upgrade toward O5
    • Control upgrade
    • Software development

Next meeting

  • 2025/2/14 10:00-

KAGRA/Subgroups/VIS/VISMinutes20250131 (last edited 2025-01-31 10:30:42 by RyutaroTakahashi)