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Participants: Participants: Takahashi, Shoda, Okutomi, Hirata, Sato, Ishizaki, Fabian, Aso, Terrence, Lucia, Yamada, Fujii, Tanaka
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 * Shoda is working on the noise budgeting using the theoretical model. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11638|klog]] Though it should be confirmed further, it will be applied on other suspensions.
 * Sato-san updated the 3D cad model for EXV.
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 * Terrence (and Mark retrospectively) implemented a fake Guardian in order to test code without having to use the real suspensions. It uses fake ezca and fake vistools. Entry [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11559|11559]].
 * Ushiba-san and Tomaru-san replaced the BS mirror coil driver for a unit with the hardware watchdog disabled. Entry [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11644|11644]].
 * Yokozawa-san and Yamada-kun measured transfer functions from the optic to DARM. I still have to check.
 * In software Fabian rolled off the DC control filters for the GAS units in order to decrease the control injected noise into the frequency observation band. Entry: [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11698|11698]].
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 * Trouble of H1 coil in OMMT1.
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 * New control scheme (Terrence).  * Guardian. See this [[https://www.dropbox.com/s/qnjz3ezz3vveo8u/GuardianTransition.pdf?dl=0|link]]. (Fabian)
 * New control scheme [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11004|link]](Terrence).

Agenda/Minutes of the VIS Meeting on 2019/11/22

2019/11/22 14:00 -

Zoom Meeting

Participants: Takahashi, Shoda, Okutomi, Hirata, Sato, Ishizaki, Fabian, Aso, Terrence, Lucia, Yamada, Fujii, Tanaka

VIS Commissioning Task List

Post-O3 task list Procurement list in 2019FY

Progress report

Type-A

Past week report

  • Shoda is working on the noise budgeting using the theoretical model. klog Though it should be confirmed further, it will be applied on other suspensions.

  • Sato-san updated the 3D cad model for EXV.

Plan for coming weeks

Type B

Past week report

  • Terrence (and Mark retrospectively) implemented a fake Guardian in order to test code without having to use the real suspensions. It uses fake ezca and fake vistools. Entry 11559.

  • Ushiba-san and Tomaru-san replaced the BS mirror coil driver for a unit with the hardware watchdog disabled. Entry 11644.

  • Yokozawa-san and Yamada-kun measured transfer functions from the optic to DARM. I still have to check.

  • In software Fabian rolled off the DC control filters for the GAS units in order to decrease the control injected noise into the frequency observation band. Entry: 11698.

Plan for coming weeks

  • Disassembly of the mirror hanging jig.

Type-Bp

Past week report

Plan for coming weeks

OMMT & OSTM

Past week report

  • Trouble of H1 coil in OMMT1.

Plan for coming weeks

  • Check the DGS for the control of OSTM suspension.

VIS electronics

Past week report

Plan for coming weeks

Other site works

Safety

  • Incidents:

Discussion

  • Guardian. See this link. (Fabian)

  • New control scheme link(Terrence).

Travel Plans

  • Travel (Week of 11/25):
    • Takahashi: 27-28
    • Sato:
    • Hirata: 27-28
    • Shoda:
    • Fujii:
    • Tanaka:
  • Travel (Week of 12/2):
    • Takahashi:
    • Sato: 3-4(ICRR Kashiwa)
    • Hirata:
    • Shoda:
    • Fujii:
    • Tanaka:

Next meeting

On 2019/11/29(Fri)

KAGRA/Subgroups/VIS/VISMinutes20191122 (last edited 2019-11-22 17:50:45 by RyutaroTakahashi)