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⇤ ← Revision 1 as of 2020-12-02 20:53:11 →
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 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Upgrades/PostO3Upgrades|Post O3 Upgrade portal]] [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Upgrades/PostO3Upgrades|Post O3 Upgrade portal]]

 * Schedule: Upgrade work in IXV (2/22-3/10) will be swapped with the work in EXV (1/4-1/22). The connection of ITMX is available on 1/12.
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 * The connection/disconnection schedule.
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 * Set up the old OSTM suspension in the OMC both.
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 * Tested the modified LVDT card. This modification (#14 pin grounded) will be applied to 16 cards.
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  * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|VIS]]   * Upgrade work in IXV (2/22-3/10) will be swapped with the work in EXV (1/4-1/22). ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|Chart]])
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  * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11520|Limit switch connecting guide]] <-- Corrected page14 on 11.25   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11520|Limit switch connecting guide]]
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  * [[https://www.dropbox.com/s/6bv15yy6hg0wn40/Acceptance%20Test%20Documentation.docx?dl=0|Inspection document (sample)]]
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 * Mechanical resonances of SRM.
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 * Yano: 12/7-11
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 * Yano: 12/14-18
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(F2F Meeting in 17-18) (F2F Meeting in 12/17-18)

Agenda/Minutes on 2020/12/4

Zoom Meeting

CRY+VIS Interface Meeting

13:30-

Participants:

Post O3 Upgrade portal

  • Schedule: Upgrade work in IXV (2/22-3/10) will be swapped with the work in EXV (1/4-1/22). The connection of ITMX is available on 1/12.
  • Jig for the FC painting.
  • Acceptance check items.

  • PF actuator: Measurement of coefficients --> calculation of the noise (by the end of Jan.).

VIS Meeting

14:00-

Participants:

Progress report

General

Type-A

Type-B

Type-Bp

Type-C

  • Set up the old OSTM suspension in the OMC both.

Controls

Electronics

  • Tested the modified LVDT card. This modification (#14 pin grounded) will be applied to 16 cards.

Towards O4

Safety

Discussion

  • Mechanical resonances of SRM.

Travel Plans

The week from 12/7

  • Takahashi: 12/7-11
  • Hirata: 12/7-11
  • Yano: 12/7-11

The week from 12/14

  • Takahashi: 12/14-18
  • Hirata: 12/14-18
  • Yano: 12/14-18

(F2F Meeting in 12/17-18)

Next meeting

  • On 2020/12/11(Fri)

KAGRA/Subgroups/VIS/VISMinutes20201204 (last edited 2020-12-04 15:23:41 by RyutaroTakahashi)