Differences between revisions 22 and 85 (spanning 63 versions)
⇤ ← Revision 22 as of 2016-06-09 14:06:22 →
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Editor: MarkBarton
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← Revision 85 as of 2016-11-25 10:32:16 → ⇥
Size: 1887
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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  * Fabian finished dummy BS assembly.
  * Mark and Tatsumi-san glued magnets into both types of BS optic flags, and discs into BS IM flags. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1815 |klog]] Two optic flags had to be redone because the magnets moved while the glue was drying. Hirata-san helped remove the magnets with acetone in the ultrasonic cleaner. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1818|klog]]
  * Tatsumi-san, Fabian and Mark took the dummy BS to Kashiwa and glued the flags and prisms. We will check status on Mon 6/13.
  * Hirata-san measured another filter.
  * Hirata-san washed a batch of parts.
  * Hirata-san worked on work platforms for the installation.
  * Hirata-san looked for a crane scale for use at the site. (We decided the 500 kg version of the one used at TAMA.)
  * Hirata-san worked on making some guide parts for the PI installation (Misumi parts with minor additional machining from ATC).
  * We finalized a design for simple SS mirror parts for the dummy BS with Akutsu-san. They will be made by ATC.
  * Mark worked on list of items for purchase in FY2016 and on the schedule.
  * Fabian did more work on the IM assembly. It is nearly done and he will start on the RM next week.
 * Type B ongoing issues
  * Can we make SR wire breakers bigger?
   * Fukushima-san will start on machining test soon (as of 5/27).
  * Not enough crane height problem (Hirata, Saito) - no action since last week
  * Ballast masses for payload
   * Initial batch received - ordered extra smaller ones to allow for adjustments.
  * Lower breadboard stuff
   * '''Need to be incorporated into the procedure document. Discuss with Takahashi (Mark)'''
   * Breadboard springs (in manufacture, expected end of July)
   * Nail-head parts: quote from Mirapro received, not urgent, will be combined with assembly frame order.
  * Clean bag - expected 6/8.
 * Documents
  * BS Assembly Procedure [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]]		   * Mark (with Enzo) did initial TFs on the BF.
   * Did fixed-sine TFs on individual OSEMs at low frequency to check actuator polarity (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2176 | 2176]] and [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2182|2182]]).
   * Set gains in the COILOUTF block to compensate for actuator polarity.
  * Mark (with Enzo) did a free-swing measurement on the BS after earthquake of 11/22 (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2182|2182]]).
   * Results suspicious (noted by Shoda-san): too much difference between OSEMs - horizontal showing much less motion than vertical.
   * Possible rubbing in horizontal.
   * May need a trip to Kamioka.
  * Mark (with Enzo) made corrections and improvements to many of the MEDM screens (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2176 | 2176]] and [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2182|2182]]).
   * Main overview screen was not generic in many places, and links to GDS_TP screens were broken.
   * ADC monitor screen referenced bad channels with LIGO-style names.
   * DAC monitor screen was not generic and did not support IM OSEMs.
   * Watchdog IM OSEM AC band limit filter screen was a copy of the TM one.
   * Watchdog TM OSEM AC band limit filter screen appears to be getting OL signals as input - needs model changes to fix.
   * The zoomed screens for IM OSEM centering were called incorrectly and did not work.
   * Various screens had LIGO-style channel names as labels.
  * Mark did a draft of D1603600-v12 reflecting the new assignment of IM OSEMs to DAQ channels (#4-9 are now V1, V2, V3, H1, H2, H3 rather than H1, H2, ...) from last Friday (the wiring was changed to reflect the model).
  * Mark worked on schedule.
  * Hirata-san
  

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

  • Type B Past Week Summary
    • Mark (with Enzo) did initial TFs on the BF.

      • Did fixed-sine TFs on individual OSEMs at low frequency to check actuator polarity (klog 2176 and 2182).

      • Set gains in the COILOUTF block to compensate for actuator polarity.

    • Mark (with Enzo) did a free-swing measurement on the BS after earthquake of 11/22 (klog 2182).

      • Results suspicious (noted by Shoda-san): too much difference between OSEMs - horizontal showing much less motion than vertical.
      • Possible rubbing in horizontal.
      • May need a trip to Kamioka.

    • Mark (with Enzo) made corrections and improvements to many of the MEDM screens (klog 2176 and 2182).

      • Main overview screen was not generic in many places, and links to GDS_TP screens were broken.
      • ADC monitor screen referenced bad channels with LIGO-style names.
      • DAC monitor screen was not generic and did not support IM OSEMs.
      • Watchdog IM OSEM AC band limit filter screen was a copy of the TM one.
      • Watchdog TM OSEM AC band limit filter screen appears to be getting OL signals as input - needs model changes to fix.
      • The zoomed screens for IM OSEM centering were called incorrectly and did not work.
      • Various screens had LIGO-style channel names as labels.
    • Mark did a draft of D1603600-v12 reflecting the new assignment of IM OSEMs to DAQ channels (#4-9 are now V1, V2, V3, H1, H2, H3 rather than H1, H2, ...) from last Friday (the wiring was changed to reflect the model).
    • Mark worked on schedule.
    • Hirata-san

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-10-28 10:02:46 by fabian.arellano)