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 * Type B Past Week Summary
  * Fabian took photos of the cleanroom in the ATC to help decide whether it is a good place to assemble PIs for Type A/B.
  * Hirata-san ordered and received wire for the BS and RM (will be cleaned 7/19).
  * Hirata-san received remachined locking parts for the IM (will be cleaned 7/19).
  * Hirata-san ordered additional Misumi parts to be used with the IM locking parts.
  * Fabian and Hirata-san weighed the masses that they've been constructing in the cleanroom and found a 600 g discrepancy from the Inventor (too light) for the IM. Although the density assumed in the Inventor agrees with spec sheet values, it doesn't match the parts. Adjusting the density to match a few key parts reduces the discrepancy to 60 g. More investigation is planned.
  * Hirata-san ordered a medium-capacity scale to weigh the individual parts more precisely and help locate the discrepancy.
  * Hirata-san organized to do a fit/function test of the BS winches and training session with Ikenoue-san of ATC on 7/25.
  * Hirose-san and his team successfully removed the misglued prisms from the dummy BS.
  * Fabian travelled to Kashiwa and removed most of the glue from the face of the dummy BS (where the flags had been). There is still some adhesive remaining on both the face and barrel, which will require more work in a second trip.
  * Shoda-san took a suitable segment of geophone noise data for analysis. Fabian will track down the calibration factors.
  * Hirata-san worked on 2D drawings for the PI cable clamps and the magnetic damper for the lower breadboard.
  * Hirata-san worked on the 3D assembly for SR2.
 * Type B ongoing issues
  * OSEMs
   * Akutsu-san is working to get wide-mouth OSEMs
  * Longer cables for BF->PI and SF->PI.
   * Connectors RECEIVED, cables being made.
  * SR machining test ongoing.
  * Lower breadboard stuff
   * Installation to be incorporated into the procedure document. Mark/Takahashi to discuss.
   * Breadboard springs (in manufacture, expected end of July)
  * Documents
   * 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]]
 * To-do list during Mark's vacation
  * Apply grease to jacks for assembly frame (Takahashi) - DONE
  * Finish assembly of BS IM, RM and IRM (Fabian) - DONE
  * Weigh IM/RM/IRM (Fabian, Hirata) - DONE but anomalies found.
  * Pack/ship IM/RM/IRM to Kamioka (Hirata/Fabian).
  * Analyze geophone data (Fabian/Shoda) - data taken by Shoda-san; Fabian to find calibration factors.
  * Remove glue from dummy BS face (Fabian) - partly done.
  * Remove prism from dummy BS (Hirose, Fabian?) - DONE
  * Reglue flags and prisms (Tatsumi, Fabian)
  * Buy wire for BS and RM (Hirata) - DONE
  * Clean wire for BS and RM (Hirata) - 7/19
  * Do fit/function test of winches (Fabian/Hirata) - ORGANIZED for 7/25
  * Ship winches to Kamioka (Hirata/Fabian)
  * Work on BS simulation (Fabian)
  * Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata) - just started.
  * Write more of payload assembly procedure (Fabian)
  * Write more of main assembly procedure (Mark)
 * Longer term to-do list
  * Do BS Simulink model (Mark, Kokeyama)
  * 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)
  * Check SR RM machining test progress (Hirata)		 === Type B (Mark) ===
==== Past week report ====
At Kamioka (Mark, Enzo, Simon, Type Bp team):
 * Mark remade the BF pico adapter cable which was poorly made and had also been damaged.
 * The Type Bp team tided up the BS rack and made new labels for many cables (thanks!).
 * Enzo connected up the in-air cables for the picos and steppers.
 * Mark and Enzo renumbered the PI LVDTs, geophones and LVDTs to make a consistent scheme working anticlockwise.
 * Enzo and Mark debugged all the cables. The only problem we couldn't solve was that the actuator coil for PI LVDT #0 is open-circuit at the connector on the LVDT. (It has been intermittent but worked before the craning.) We may have to redo the connector or replace the LVDT. Limited TFs will be possible in the next week.
 * Simon set up the LSOL and was easily able to get a return beam from the mirror on the dummy BS.
 * Shoda-san copied over the LSOL section of the PR3 real-time model into the BS model and made other improvements (thanks!).
 * Mark brought home

At Mitaka (Fabian, Hirata-san):
 * Fabian finished designing final trim masses for IM/BF/SF for the final hang of the BS and passed it to Hirata-san to make drawings and get quotes.
 * Hirata-san requested quotes for the replaceable-jaw version of the BS wire clamps.
 * Fabian and Hirata-san gathered needed items for the BS prism/flag gluing.
 * Hirata-san designed receptacles for the new rods with 8 mm heads and requested quotes.

==== Plan for week of 7/3 ====
 * Do prism/flag gluing on real BS at Kashiwa (whole team).
 * Do new 3D CAD (Hirata-san):
  * SR2 on BS assembly frame. (Adjust jack positions if possible, or leave for Fabian/Mark to do.)
  * Final BS build, SS/PI/SF as for Test Hang but with BF/IRM/IM/BS/RM down rotated back to original direction.
   * On-assembly-frame version. (Adjust jack positions if possible, or leave for Mark to do.)
   * In-tank version.
 *
==== Plan for week of 7/10 ====

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

At Kamioka (Mark, Enzo, Simon, Type Bp team):

  • Mark remade the BF pico adapter cable which was poorly made and had also been damaged.
  • The Type Bp team tided up the BS rack and made new labels for many cables (thanks!).
  • Enzo connected up the in-air cables for the picos and steppers.
  • Mark and Enzo renumbered the PI LVDTs, geophones and LVDTs to make a consistent scheme working anticlockwise.
  • Enzo and Mark debugged all the cables. The only problem we couldn't solve was that the actuator coil for PI LVDT #0 is open-circuit at the connector on the LVDT. (It has been intermittent but worked before the craning.) We may have to redo the connector or replace the LVDT. Limited TFs will be possible in the next week.
  • Simon set up the LSOL and was easily able to get a return beam from the mirror on the dummy BS.
  • Shoda-san copied over the LSOL section of the PR3 real-time model into the BS model and made other improvements (thanks!).
  • Mark brought home

At Mitaka (Fabian, Hirata-san):

  • Fabian finished designing final trim masses for IM/BF/SF for the final hang of the BS and passed it to Hirata-san to make drawings and get quotes.
  • Hirata-san requested quotes for the replaceable-jaw version of the BS wire clamps.
  • Fabian and Hirata-san gathered needed items for the BS prism/flag gluing.
  • Hirata-san designed receptacles for the new rods with 8 mm heads and requested quotes.

Plan for week of 7/3

  • Do prism/flag gluing on real BS at Kashiwa (whole team).
  • Do new 3D CAD (Hirata-san):
    • SR2 on BS assembly frame. (Adjust jack positions if possible, or leave for Fabian/Mark to do.)
    • Final BS build, SS/PI/SF as for Test Hang but with BF/IRM/IM/BS/RM down rotated back to original direction.
      • On-assembly-frame version. (Adjust jack positions if possible, or leave for Mark to do.)
      • In-tank version.

Plan for week of 7/10

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