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⇤ ← Revision 72 as of 2016-10-07 12:05:45 →
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← Revision 196 as of 2017-10-05 12:52:28 → ⇥
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Editor: MarkBarton
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 * Type B Past Week Summary
  * Fabian, Mark and Liu-kun did BS installation at Kamioka:
   * Connected the DIO card to the LPCD. (Simulink model changes will be needed to make use of it.)
   * Took TF data from the TM-H1 coil output to the voltage and current monitors and found that the response was approximately flat, meaning that meaningful TFs can be taken of the RM/BS stage with no DIO.
   * Used the 90° prism and the optical lever to set the pitch of the RM to match the dummy BS.
   * Removed the RM trolley and added the bottom section of the security structure.
   * Lifted the IM/RM/BS with the load gauge adapter and load gauge and measured its mass.
  * Hirata-san:
   * Modified drawing of maraging rods for BS [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5706| D1605706]]
   * Made 3D models of stub flag gluing jigs.
   * Made 3D models and 2D drawing of BS BF-IM hexagon cable clamp assembly and cone parts. [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5734| D1605734]]
   * Washed parts and screws.
   * (For Type A) Assembled and adjusted blades of BF #9.
  * Mark checked lots of drawings by Hirata-san.
  * Mark worked on schedule but only succeeded in completely garbling the Type B section of the VIS schedule on the server.
 * Longer term to-do list
  * Do Inventor assembly for SRx in chamber and on assembly frame (Hirata) - SR2/SR3 DONE, SRM ongoing.
   * Part "disk security" top has to be modified - screw positions do not match.
  * Write more of payload assembly procedure (Fabian) - ONGOING
  * Write more of BS Assembly Procedure [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4235| E1504235]], [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]] (Mark) - ONGOING
  * Lower breadboard installation to be incorporated into the procedure document.
  * Work on BS simulation (Fabian)
  * Do BS Simulink model (Mark, Kokeyama) - TM/IM/BF level DONE
  * Do 2D drawings of SR2 parts (Hirata)
  * Redesign SRx IM wire clamps for larger prisms, remachined RMs
  * Order SRM/PRM parts (Hirata/Shoda)
  * Order SRx fasteners (Hirata)		 === Type B (Mark) ===
==== Past week report ====
At Kamioka (Mark, Ohishi-san, Fabian, Enzo, Hirata-san, Yoshioka-kun):
 * We moved or covered stuff in the BS cleanbooth to prepare for the SR2 crane slot cutting and BS-> SR2 assembly frame move.
 * We put the service port covers back on at the BF level of the BS tank.
 * We used the PI jacks to center the bottom of the security structure around the RM.
 * We debugged a mechanical issue where the #2 IP LVDT had too narrow a gap between the moving and fixed parts, so that there was interference with only a very small clockwise yaw of the IP. We fixed it by moving the bottom baseplate (taking advantage of the fact that it was held by screws in oversize holes for this purpose).
 * We used the IP FRs to center the IP.
 * We set the gains on the IP LVDT driver.
 
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  ==== Plan for week of 10/2 ====
Kamioka: Mark, Enzo (Tue-Fri), Ohishi-san, Kozu-kun.
 * Finish preparation for SR2 work.
 * Debug electronics, especially actuation.
 * Tune IP, do LVDT/stepper calibration.
 * Remove First Contact, try OL.
Mitaka: Fabian, Hirata-san
 * Design ballast for LBB.
 * Design improved PI yaw adjustment.
 * SR procurement.

==== Plan for week of 10/10 ====
Holiday Mon 10/9, Open Day prep Fri 10/13.<<BR>>
 * TFs, final preparation for alignment in week of 10/16.

==== Plan for week of 10/16 ====
Kamioka: all but Mark
 * Work with alignment team.

==== Vacation Info ====
Mark: 10/16-24

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

At Kamioka (Mark, Ohishi-san, Fabian, Enzo, Hirata-san, Yoshioka-kun):

  • We moved or covered stuff in the BS cleanbooth to prepare for the SR2 crane slot cutting and BS-> SR2 assembly frame move.

  • We put the service port covers back on at the BF level of the BS tank.
  • We used the PI jacks to center the bottom of the security structure around the RM.
  • We debugged a mechanical issue where the #2 IP LVDT had too narrow a gap between the moving and fixed parts, so that there was interference with only a very small clockwise yaw of the IP. We fixed it by moving the bottom baseplate (taking advantage of the fact that it was held by screws in oversize holes for this purpose).
  • We used the IP FRs to center the IP.
  • We set the gains on the IP LVDT driver.

Plan for week of 10/2

Kamioka: Mark, Enzo (Tue-Fri), Ohishi-san, Kozu-kun.

  • Finish preparation for SR2 work.
  • Debug electronics, especially actuation.
  • Tune IP, do LVDT/stepper calibration.
  • Remove First Contact, try OL.

Mitaka: Fabian, Hirata-san

  • Design ballast for LBB.
  • Design improved PI yaw adjustment.
  • SR procurement.

Plan for week of 10/10

Holiday Mon 10/9, Open Day prep Fri 10/13.

  • TFs, final preparation for alignment in week of 10/16.

Plan for week of 10/16

Kamioka: all but Mark

  • Work with alignment team.

Vacation Info

Mark: 10/16-24

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