= Agenda/Minutes of the VIS Meeting on 2019/11/22 =
2019/11/22 14:00 -

[[https://zoom.us/j/203743987|Zoom Meeting]]

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

[[https://paper.dropbox.com/doc/VIS-Commissioning-Task-List--AlK26n6oP8QHU_XUQriwv2PvAg-RKcNXfMFrqOtTAPU48qQf|VIS Commissioning Task List]]

[[https://onedrive.live.com/view.aspx?resid=8E8081C20FE5EC3A!2278&ithint=file,xlsx&authkey=!AMFNtNa-Y6CVp94|Post-O3 task list]] [[https://www.dropbox.com/s/9l1h0fw9kc1pzmm/Proocurement%202019FY.xlsx?dl=0|Procurement list in 2019FY]]

== Progress report ==
=== Type-A ===
==== Past week report ====
 * 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.

==== 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 [[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]].

==== 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 [[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).

== 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)