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⇤ ← Revision 1 as of 2023-04-27 11:17:25 →
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Editor: RyutaroTakahashi
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← Revision 8 as of 2023-04-28 13:46:00 → ⇥
Size: 1644
Editor: RyutaroTakahashi
Comment:
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Date: 2023/4/28 13:00- Date: 2023/4/28 13:00-13:10
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Participants: Participants: Takahashi, Mitsuhashi, Yokozawa, Akutsu, Tomaru, Ushiba, Uchiyama, Miyoki
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 * Type-A:  * Type-A: Investigation of the Oplev glitches in EY.
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 * Oplev:  * Oplev: QPD centering will be necessary.
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 * Commissioning: Measurements of DAC noise.  * Commissioning: Measurements of DAC noise in BS/PR2.
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Date: 2023/4/28 13:30- Date: 2023/4/28 13:30-13:40
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Participants: Participants: Takahashi, Mitsuhashi, Ushiba, Fabian, Tanaka
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 * Measured the noise of the LVDTs and geophones in SR2.
 * Measured the DAC noises in BS/PR2.
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 * Measured the spectra and TFs of the PR2 suspension. Comparing the TFs with the mechanical models.
 
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 * Measured the TF and Q of the R.L. prototype.
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 * (Golden week)  * Sato: 5/3-4 (Safety shift)
 * Hirata: 5/6-8 (Safety shift)

Contents

  1. Agenda/Minutes
  2. CRY+VIS Interface Meeting
    1. Suspensions
    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: 2023/4/28 13:00-13:10

Participants: Takahashi, Mitsuhashi, Yokozawa, Akutsu, Tomaru, Ushiba, Uchiyama, Miyoki

Acceptance check document

Suspensions

  • Type-A: Investigation of the Oplev glitches in EY.
  • Type-B: Measurements on the sensor correction in SR2.
  • Type-Bp: Optimization of the damping control.
  • Type-C:

Other items

  • Oplev: QPD centering will be necessary.
  • ACC:
  • Commissioning: Measurements of DAC noise in BS/PR2.
  • Vacuum system:
  • Heater control:
  • TMS:

Discussion

VIS Meeting

Date: 2023/4/28 13:30-13:40

Participants: Takahashi, Mitsuhashi, Ushiba, Fabian, Tanaka

Summary Report

Type-A

Type-B

  • Measured the noise of the LVDTs and geophones in SR2.
  • Measured the DAC noises in BS/PR2.

Type-Bp

  • Measured the spectra and TFs of the PR2 suspension. Comparing the TFs with the mechanical models.

Type-C

Electronics

Control

R&D

  • Measured the TF and Q of the R.L. prototype.

Schedule

  • Type-A:
  • Type-B: Measurements in SRs.
  • Type-Bp: Damping control for BF damper.
  • Type-C:

Safety

Discussion

Travel Plans

(Date in Kamioka)

The week from 5/1

  • Sato: 5/3-4 (Safety shift)
  • Hirata: 5/6-8 (Safety shift)

Next meeting

  • 2023/5/12(FRI) 13:30-

KAGRA/Subgroups/VIS/VISMinutes20230428 (last edited 2023-04-28 13:46:00 by RyutaroTakahashi)