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= Agenda/Minutes of the VIS Meeting on 2020/9/25 =
2020/9/25 13:00 - 		= Agenda/Minutes on 2020/9/25 =
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Participants: = CRY+VIS Interface Meeting =
13:00-14:00
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== Interface VIS+CRY ==
 * Schedule		 Participants: Takahashi, Miyo, Uchiyama, Aso, Hirata, Sato, Ikeda, Tomaru, Hagiwara, Kimura, Ushiba, Sawada、Akutsu
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 * [[https://www.dropbox.com/s/msyxd5bb8oohovv/Microsoft%20Project%20-%20bKAGRA%20O4%20200822.pdf?dl=0|Schedule]]
  * The schedule reconstruction for vacuum chamber opening is necessary due to the extension of RSE Trial.
  * Removing of SR3 is planed from end of January with moving of the assembly frame.
  * Confirmation of timing for the tower-payload disconnection.
  * Request on the IP tracking and IYV evacuation monitor.

= VIS Meeting =
14:00-15:00

Participants: Takahashi, Fabian, Hirata, Satou, Terrence, Miyo, Aso, Washimi, Ishizaki
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 * Iguchi-san will join VIS.
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=== Type B ===  * [Fujii] Can you please update the status of paper writing especially about the Type-A mechanics and its control? I also would like to know the rough schedule that you team are planning. Please let me know. Leaving your comments here will be enough. O-tsu-ka-re-sa-ma-de-su. (My account will have to be removed I guess btw..)

=== Type-B ===
 * [Sato] Design of the limit switches for BS IP FR. [[attachment:BS IP FR limit switch_20200924.pdf]]
 * I submitted the paper to C&QG, finally.
 * Hirata-san and I had an information session for Washimi-san.
 * I asked to Takahashi-san for some long poles to mount the dial gauges around outer frames. Maybe there are some in TAMA. Work in progress.
 * Given the new temperature conditions in the central room, I offloaded fishing rods:
  * SR2 (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15081|15081]]) and SRM (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15083|15083]]) fishing rods are working well.
  * BS: F0 and BF fishing rods look healthy and F1 one is at the bottom of its range (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15071|15071]]).
  * SR3: F0 fishig rod is healthy, the F1 one is still jammed and BF one at its upper limit (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15070|15070]]).
  * I changed some DC filters setpoint and updated BURT and SDF files. In SR3 I keep the height of the mirror constant.
 * For SR3 F1, I calculated the amount of ballast the needs to be removed to bring it to nominal height: 31 grams or less (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15102|15102]]). This number has be reviewed once I calculate how much mass we need to remove from the IM. The BF fishing rod needs to be in mid-range with control off to know.
 * Next week:
  * Same calculation for the other filters: they require setting the fishing rods to mid-range.
  * With the new temperature conditions I need to measure IP resonant frequencies again.
  * LVDT card document
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  * Ordered the manufacture of a modified IMMT2 support frame.
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 * KAGRA is in "RSE Trial" now.  * KAGRA is in "RSE Trial" now. "SEO is thinking about possibility for one week extension and the schedule reconstruction for vacuum chamber opening."
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  * When you make inventories, indicate [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0119/E2011960/002/KAGRA_Cleanbooth_Segment_Name.pdf|the segment name]].
 * Schedule		   * Inventory sheet with [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0119/E2011960/002/KAGRA_Cleanbooth_Segment_Name.pdf|the segment name]] is necessary ([[https://www.dropbox.com/s/uz1ial5r377dgvt/Inventory%20check.xlsx?dl=0|Example of Type-A]]).
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|Schedule]]
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   * Criteria in the acceptance test [[https://www.dropbox.com/s/pc9y3im2v4yvz6n/Acceptance%20test%20criteria.xlsx?dl=0|Sheet]].
 * Presentation
  * PAB (10/8)
  * Chief Meeting (10/12)
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 * [Terrence] VIS health checking system [[https://github.com/gw-vis/vishack|VISHack]]

Agenda/Minutes on 2020/9/25

Zoom Meeting

CRY+VIS Interface Meeting

13:00-14:00

Participants: Takahashi, Miyo, Uchiyama, Aso, Hirata, Sato, Ikeda, Tomaru, Hagiwara, Kimura, Ushiba, Sawada、Akutsu

  • Post O3 Upgrade portal

  • Schedule

    • The schedule reconstruction for vacuum chamber opening is necessary due to the extension of RSE Trial.
    • Removing of SR3 is planed from end of January with moving of the assembly frame.
    • Confirmation of timing for the tower-payload disconnection.
    • Request on the IP tracking and IYV evacuation monitor.

VIS Meeting

14:00-15:00

Participants: Takahashi, Fabian, Hirata, Satou, Terrence, Miyo, Aso, Washimi, Ishizaki

Progress report

General

  • Iguchi-san will join VIS.

Type-A

  • [Fujii] Can you please update the status of paper writing especially about the Type-A mechanics and its control? I also would like to know the rough schedule that you team are planning. Please let me know. Leaving your comments here will be enough. O-tsu-ka-re-sa-ma-de-su. (My account will have to be removed I guess btw..)

Type-B

  • [Sato] Design of the limit switches for BS IP FR. BS IP FR limit switch_20200924.pdf

  • I submitted the paper to C&QG, finally.

  • Hirata-san and I had an information session for Washimi-san.
  • I asked to Takahashi-san for some long poles to mount the dial gauges around outer frames. Maybe there are some in TAMA. Work in progress.
  • Given the new temperature conditions in the central room, I offloaded fishing rods:

    • SR2 (klog 15081) and SRM (klog 15083) fishing rods are working well.

    • BS: F0 and BF fishing rods look healthy and F1 one is at the bottom of its range (klog 15071).

    • SR3: F0 fishig rod is healthy, the F1 one is still jammed and BF one at its upper limit (klog 15070).

    • I changed some DC filters setpoint and updated BURT and SDF files. In SR3 I keep the height of the mirror constant.

  • For SR3 F1, I calculated the amount of ballast the needs to be removed to bring it to nominal height: 31 grams or less (klog 15102). This number has be reviewed once I calculate how much mass we need to remove from the IM. The BF fishing rod needs to be in mid-range with control off to know.

  • Next week:
    • Same calculation for the other filters: they require setting the fishing rods to mid-range.
    • With the new temperature conditions I need to measure IP resonant frequencies again.
    • LVDT card document

Type-Bp

Type-C

  • Ordered the manufacture of a modified IMMT2 support frame.

Controls

Electronics

Towards O4

Safety

Discussion

  • [Terrence] VIS health checking system VISHack

Travel Plans

The week from 9/28

  • Takahashi: 9/30-10/2
  • Sato: 9/30-10/2
  • Hirata: 9/30-10/2

The week from 10/5

  • Takahashi: 10/5-9
  • Sato: 10/5-9
  • Hirata: 10/5-9

Next meeting

  • On 2020/10/2(Fri)

KAGRA/Subgroups/VIS/VISMinutes20200925 (last edited 2020-09-25 15:50:46 by RyutaroTakahashi)