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Editor: RyutaroTakahashi
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Date: 2023/4/14 13:00- Date: 2023/4/14 13:00-13:10
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Participants: Participants: Takahashi, Mitsuhashi, Akutsu, Sato, Ushiba, Uchiyama, Hirata, Yokozawa, Miyoki, Aso
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 * Oplev: Investigation of the glitches in SR2.  * Oplev: Investigation of the glitches in SR2. Glitches due to the site work were found.
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 * Vacuum system: 6 TMPs stop.  * Vacuum system: 6 TMPs stop in the center. A vacuum gauge was implemented in EX.
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Date: 2023/4/14 13:30- Date: 2023/4/14 13:30-13:50
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Participants: Participants: Takahashi, Mitsuhashi, Ushiba, Uchiyama, Sato, Hirata, Tanaka
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 * Replaced the coil driver for the accelerometers in EX.
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 * Measurements of the DAC noises are planned.
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 * Tried to make Roberts Linkages.
 * Measured it's resonant frequency and Q factor.
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 * Type-B/Bp: Damping control of GAS filters.  * Type-B/Bp: Damping control for the BF damper.
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 * Sato: 4/20-21
 * Hirata: 4/20-21

Contents

  1. Agenda/Minutes
  2. CRY+VIS Interface Meeting
    1. Status
    2. Other items
    3. Discussion
  3. VIS Meeting
    1. Summary Report
      1. Type-A
      2. Type-B
      3. Type-Bp
      4. Type-C
      5. Electronics
      6. Control
      7. R&D
    2. Schedule
    3. Safety
    4. Discussion
    5. Travel Plans
    6. Next meeting

Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date: 2023/4/14 13:00-13:10

Participants: Takahashi, Mitsuhashi, Akutsu, Sato, Ushiba, Uchiyama, Hirata, Yokozawa, Miyoki, Aso

Acceptance check document

Status

  • Type-A:
  • Type-B:
  • Type-Bp: Optimization of the damping control for the BF damper.
  • Type-C: Offload in IMMT1 and IMMT2.

Other items

  • Oplev: Investigation of the glitches in SR2. Glitches due to the site work were found.
  • ACC: Replacement of the coil driver in EX.
  • Commissioning: Measurements of DAC noise for ITMX and ITMY.
  • Vacuum system: 6 TMPs stop in the center. A vacuum gauge was implemented in EX.
  • Heater control: Adjustment in IY.
  • TMS:

Discussion

VIS Meeting

Date: 2023/4/14 13:30-13:50

Participants: Takahashi, Mitsuhashi, Ushiba, Uchiyama, Sato, Hirata, Tanaka

Summary Report

Type-A

  • Replaced the coil driver for the accelerometers in EX.

Type-B

Type-Bp

Type-C

Electronics

  • Measurements of the DAC noises are planned.

Control

R&D

  • Tried to make Roberts Linkages.
  • Measured it's resonant frequency and Q factor.

Schedule

  • Type-A:
  • Type-B/Bp: Damping control for the BF damper.
  • Type-C:

Safety

Discussion

Travel Plans

(Date in Kamioka)

The week from 4/17

  • Sato: 4/20-21
  • Hirata: 4/20-21
  • Fabian: 3/27-4/18 (vacation)

Next meeting

  • 2023/4/21(FRI) 13:30-

KAGRA/Subgroups/VIS/VISMinutes20230414 (last edited 2023-04-14 13:58:08 by RyutaroTakahashi)