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 * On 2020/6/17(Fri)  * On 2020/6/19(Fri)

Agenda/Minutes of the VIS Meeting on 2020/6/12

2020/6/12 14:00 - 15:00

Zoom Meeting

Participants: Takahashi, Hirata, Miyo, Aso, Fabian, Sato, Lucia, Shoda, Tanaka

Progress report

General

  • Miyo made VIS_COILOUT_ALERT.mdl to alert us when the output signal reach to maximum count of DAC. If the signal above 30% of the max, text is colored by yellow, and if above 70% it colored by red. simple. This work was posted on klog#14485.

Type-A

Type-B

  • The decay times measurement were finished. See klog 14510 for details.

  • As preparation for the control upgrade next week Miyo-kun and Fabian will modify the Type-B real-time model. It seems the modification is simple enough to do it remotely and we will ask Nakano-kun to restart the model after compilation. It only implies copying, pasting and renaming a few blocks. We received advice from Yamamoto-kun about the status of the connection of the IXV seismometer to the Dolphin network via the LSC model.
  • Writing of the Type-B paper continues.

Type-Bp

Type-C

  • Location of the present IMMT2 suspension is unknown. We need to check it opening the chamber to start the design of new footprint.

Controls

  • There is a wiki page with the plan agreed on Wednesday: control upgrade wiki page.

  • FTE analysis of heat link is on going. About to implement it into the suns model.

Electronics

  • Start to make the circuit from the next week.
  • Designed circuit consists of 10th order LPF and BPF.

Post O3

  • Post Obs. tasks are on going. Decay time measurement in SR2 was performed in this week. Sensor correction for SRs and SR suspension update are planed in the next week.
  • O3c has not been decided yet, but the situation is going to O4 directly.
  • The site work towards O4 is rescheduled. The extended chief meeting will be held on June 15th to discuss about the plan towards O4.
  • Revised schedule towards O4.

  • Revised task list towards O4.

cf. Post Obs. task (Request), Task for O3c (Plan, Sheet).

Safety

Discussion

Travel Plans

Next meeting

  • On 2020/6/19(Fri)

KAGRA/Subgroups/VIS/VISMinutes20200612 (last edited 2020-06-12 17:02:27 by RyutaroTakahashi)