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Editor: RyutaroTakahashi
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Size: 1156
Editor: RyutaroTakahashi
Comment:
Deletions are marked like this. Additions are marked like this.
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  * We are finding a substitute for the L-4C geophone. We evaluating other geophones in ERI.   * We are finding a substitute for the L-4C geophone. We are evaluating other geophones in ERI.

Contents

  1. VIS Meeting
    1. Review of IRM damper for Type-B suspension
    2. Topics
      1. Type-A
      2. Type-B/Bp
      3. Type-C
      4. R&D
    3. Discussion
    4. Next meeting

VIS Meeting

Date: 2025/6/6 10:00-

Zoom

Participants:

Review of IRM damper for Type-B suspension

Topics

Type-A

  • ACCs for the IP controls.

    • Evaluation of the FLDACC with DGS in ATC is ongoing. The present status is here.

Type-B/Bp

  • IRM damper for Type-B.
    • The design work is ongoing by Hirata-san. After the review, he will proceed with creating the drawings of the parts.
  • Enclosure for the SG card in an independent box.
    • Tanaka-san made a prototype box. A 1U panel was prepared to mount the box.
  • IP for Type-Bp.

Type-C

  • Active isolation table for OMC.

    • The new geophone pre-amp. was evaluated (report).

    • We are finding a substitute for the L-4C geophone. We are evaluating other geophones in ERI.
  • Small Type-C suspensions with mini-GAS.

R&D

Discussion

Next meeting

  • 2025/6/20 10:00-

KAGRA/Subgroups/VIS/VISMinutes20250606 (last edited 2025-06-06 11:12:23 by RyutaroTakahashi)