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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) ===
==== Report for week of 2/26 ====
 * We routed all the cables from the BF level up via the flying saucer to the SF.
 * Hirata-san tried filing the SF cap to improve the fit, but without much success.
 * Hirata-san installed the Cu segments and cable clamps on the SF cap and the SF LVDT and FR cables.
 * We cabled and tested the BF cap picos and the SF LVDT and FR. (The LVDT still needs a full calibration.)
 * We worked on recovering the IM OSEM alignment.

==== Plan for week of 2/26 ====
 * Shoda-san at Mitaka.
 * -
 * Enzo at Mitaka Mon 2/26.
 * '''Remove LBB temporary ballast masses from BS chamber.'''
 * Route cables up to under SF.
 * Check/adjust total mass and balance of BF/... section, especially IM OSEMs.
 * Cable and calibrate SF LVDT.
 * Add Cu segments to SF cap.
 * Install cap.
 * Lift SF/... section and check total mass and balance.

==== Plan for week of 3/5 ====
 * Shoda-san at Mitaka.
 * Hirata-san vacation Mon 3/5, then Kamioka
 * Others at Kamioka.
 * -
 * Finish recovering IM OSEM alignment.
 * Calibrate SF LVDT.
 * Weigh SF/... section.
 * Get SRM tank mushroom section installed (Hirata-san, Kimura-san)
 * Set up for rebuilding of two BFs.

==== Plan for week of 3/12 ====
 * Shoda-san at Mitaka.
 * Mark at ASJ (Chiba) Fri, then Mitaka.
 * Hirata-san vacation Mon 3/5; Kamioka Tue-Thu; Mitaka Fri
 * Others Kamioka Mon-Thu
 * Install boxes in SR3 and SRM racks.
 * Lay SR3 in-air cabling.
 * Continue rebuild of BFs.

==== Plan for week of 3/19 ====
 * Mark at LVC meeting
 * All others at Mitaka
 * Make two sets of IM OSEMs
 * Make last in-air pico adapter cable
 * Make three in-air stepper splitter cables for SR2, SR3 and SRM.
 * Set up Dummy BS prism removal.

==== Plan for week of 3/26 ====
 * Mark vacation.
 * Shoda-san at Mitaka
 * Others at Kamioka
 * --
 * F0 Prototype Blade Test
  * Characterize blades.
  * Choose best set of three.
  * Remove cracked blades from filter in SRM area.
  * Set up test weights in SRM area, first floor.
  * Remove floor panel in SRM area, second floor.
  * Install chosen blades.
  * Measure load capacity.

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/March2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/April2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]]
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]]

==== Vacation Info ====
 * Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
 * Hirata-san vacation, Mon 3/5.
 * Fabian vacation, 3/26-4/27 (then gone).

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 2/26

  • We routed all the cables from the BF level up via the flying saucer to the SF.
  • Hirata-san tried filing the SF cap to improve the fit, but without much success.
  • Hirata-san installed the Cu segments and cable clamps on the SF cap and the SF LVDT and FR cables.
  • We cabled and tested the BF cap picos and the SF LVDT and FR. (The LVDT still needs a full calibration.)
  • We worked on recovering the IM OSEM alignment.

Plan for week of 2/26

  • Shoda-san at Mitaka.
  • -
  • Enzo at Mitaka Mon 2/26.

  • Remove LBB temporary ballast masses from BS chamber.

  • Route cables up to under SF.
  • Check/adjust total mass and balance of BF/... section, especially IM OSEMs.
  • Cable and calibrate SF LVDT.
  • Add Cu segments to SF cap.
  • Install cap.
  • Lift SF/... section and check total mass and balance.

Plan for week of 3/5

  • Shoda-san at Mitaka.
  • Hirata-san vacation Mon 3/5, then Kamioka
  • Others at Kamioka.
  • -
  • Finish recovering IM OSEM alignment.
  • Calibrate SF LVDT.
  • Weigh SF/... section.
  • Get SRM tank mushroom section installed (Hirata-san, Kimura-san)
  • Set up for rebuilding of two BFs.

Plan for week of 3/12

  • Shoda-san at Mitaka.
  • Mark at ASJ (Chiba) Fri, then Mitaka.
  • Hirata-san vacation Mon 3/5; Kamioka Tue-Thu; Mitaka Fri
  • Others Kamioka Mon-Thu
  • Install boxes in SR3 and SRM racks.
  • Lay SR3 in-air cabling.
  • Continue rebuild of BFs.

Plan for week of 3/19

  • Mark at LVC meeting
  • All others at Mitaka
  • Make two sets of IM OSEMs
  • Make last in-air pico adapter cable
  • Make three in-air stepper splitter cables for SR2, SR3 and SRM.
  • Set up Dummy BS prism removal.

Plan for week of 3/26

  • Mark vacation.
  • Shoda-san at Mitaka
  • Others at Kamioka
  • --
  • F0 Prototype Blade Test
    • Characterize blades.
    • Choose best set of three.
    • Remove cracked blades from filter in SRM area.
    • Set up test weights in SRM area, first floor.
    • Remove floor panel in SRM area, second floor.
    • Install chosen blades.
    • Measure load capacity.

To-Do Lists, Schedule

Vacation Info

  • Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
  • Hirata-san vacation, Mon 3/5.
  • Fabian vacation, 3/26-4/27 (then gone).

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