Differences between revisions 1 and 9 (spanning 8 versions)
⇤ ← Revision 1 as of 2023-07-06 10:19:22 →
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Editor: RyutaroTakahashi
Comment:
← Revision 9 as of 2023-07-07 13:58:00 → ⇥
Size: 2551
Editor: RyutaroTakahashi
Comment:
Deletions are marked like this. Additions are marked like this.
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Date: 2023/7/7 13:00- Date: 2023/7/7 13:00-13:30
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Participants: Participants: Takahashi, Node, Akutsu, Uchiyama, Ikeda, Mitsuhashi, Kimura, Ushiba, Aso, Yokozawa
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 * Type-A: Test of the IP control with ACCs was postponed in IY. Offload of the GAS filters in IX.  * Type-A: Test of the IP control with ACCs was postponed in IY. Offloaded the GAS filters in IX on 7/3.
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 * Oplev: Check of the length Oplevs.  * Oplev: Check of the length Oplevs. QPD centering is necessary for PRs.
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 * Vacuum system:  * Vacuum system: Build the OMC chamber up to 1atm.
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 * Optimization of the damping control in PRs: Measurements 2 days, Test 3 days.  * Optimization of the damping control in PRs: Measurements 2 days, Test 3 days. Check the SUMCON model.
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 * Hight adjustments of Type-A in the cooling: Confirmation of the procedure.
 * Check of the length Oplev: Done except for IY.		  * Hight adjustments of Type-A in the cooling: Confirm [[https://paper.dropbox.com/doc/Hight-adjustment-in-cooling--B7ii3omB81JIm6khnBt_7fcaAQ-swWQ5h6M6lSs8yLp5D6dA|the procedure]].
 * Check of the length Oplev: Finished except for IY.
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Date: 2023/7/7 10:00- Date: 2023/7/7 10:00-10:25
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Participants: Participants: Takahashi, Mitsuhashi, Tanaka, Aso
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=== Toward O5 ===
 * [[https://paper.dropbox.com/doc/VIS-upgrade-toward-O5--B6qw57_1ZTHOEO_ZdAZi0hBjAQ-PJElGnRfe5jbNPeHWDHzi|Dropbox paper]]		  * Table-top experiment of the Roberts Linkage.
  * Measured the TF of each direction X/Y. Each resonant frequency was identified.
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 * Move the TAMA-SAS tower from the warehouse to the ATC lab in the week of 7/17.  * Move the TAMA-SAS tower from the warehouse to the ATC lab on 7/19.
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== Safety == == Toward O5 ==
 * [[https://paper.dropbox.com/doc/VIS-upgrade-toward-O5--B6qw57_1ZTHOEO_ZdAZi0hBjAQ-PJElGnRfe5jbNPeHWDHzi|Dropbox paper]]

Contents

  1. Agenda/Minutes
  2. CRY+VIS Interface Meeting
    1. Suspensions
    2. Other items
    3. Post O4a
    4. 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. Toward O5
    4. Discussion
    5. Next meeting

Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date: 2023/7/7 13:00-13:30

Participants: Takahashi, Node, Akutsu, Uchiyama, Ikeda, Mitsuhashi, Kimura, Ushiba, Aso, Yokozawa

Acceptance check document

Suspensions

  • Type-A: Test of the IP control with ACCs was postponed in IY. Offloaded the GAS filters in IX on 7/3.
  • Type-B:
  • Type-Bp:
  • Type-C:

Other items

  • Oplev: Check of the length Oplevs. QPD centering is necessary for PRs.
  • ACC: Test of the IP control with ACCs in IY.
  • Commissioning:
  • Vacuum system: Build the OMC chamber up to 1atm.
  • Heater control:
  • TMS:

Post O4a

  • Measurements of the DAC noise: Every Friday from 7/7.
  • Measurements on the sensor correction in SR2: 1 night.
  • Optimization of the damping control in PRs: Measurements 2 days, Test 3 days. Check the SUMCON model.
  • IP control with the ACCs: Postponed the long-term test in IY.
  • In-vacuum accelerometer for IOO: Install the geophone pod into the OMC chamber on 7/10.

  • Hight adjustments of Type-A in the cooling: Confirm the procedure.

  • Check of the length Oplev: Finished except for IY.
  • Noise budget of the suspensions: Finished except for the tower part.
  • Temperature control for the Oplev: Preparing for the heater controller.

Discussion

VIS Meeting

Date: 2023/7/7 10:00-10:25

Participants: Takahashi, Mitsuhashi, Tanaka, Aso

Summary Report

Type-A

  • Test of the IP control with ACCs was postponed in IY.

Type-B

Type-Bp

Type-C

  • Damping of the OMC suspension.
    • Design of the blade damper.
    • Design of the flexible pendulum damper.

Electronics

Control

R&D

  • Table-top experiment of the Roberts Linkage.
    • Measured the TF of each direction X/Y. Each resonant frequency was identified.

Schedule

  • Installation of the geophone pod into the OMC chamber on 7/10.
  • Move the TAMA-SAS tower from the warehouse to the ATC lab on 7/19.

Toward O5

Discussion

Next meeting

  • 2023/7/21 10:00-

KAGRA/Subgroups/VIS/VISMinutes20230707 (last edited 2023-07-07 13:58:00 by RyutaroTakahashi)