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 * Type B Past Week Summary
  * Akutsu-san provided a set of cleanroom gear (shoes only slightly too tight!) for use by Mark this week. And Sakamoto-san sent another set from Kamioka to Kashiwa.
  * The RM, IM and IRM were weighed, and wrapped/packed for shipment to Kamioka.
  * Mark made a checklist of all the parts of the BS mirror box and gluing jig, to help with collecting the parts from Kashiwa.
  * Hirata-san removed the remaining glue from the BS primary and secondary prisms, as well as the prisms removed from the PR hanging test mirror.
  * Fabian designed an extra 600 g of trim masses for the IM and Hirata-san made drawings and ordered them. The design allows for the masses to be added even after the dummy optic and RM have been hung, so it should not delay work.
 * Type B ongoing issues
  * OSEMs
   * Akutsu-san is working to get wide-mouth OSEMs ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1853|2 assembled]]; another few were assembled and a batch of 7 were washed.
   * Mark worked on the schedule, making the next few weeks more realistic and incorporating the new plan for the SR RMs (the test will be used for SR2 but two more will be made from scratch next financial year).
  * Longer cables for BF->PI and SF->PI.
   * Connectors RECEIVED, cables being made.
  * SR machining test NEARLY DONE. The part looks good and will be used but the ones for SR3 and SRM will be made from scratch.
  * Lower breadboard stuff
   * Installation to be incorporated into the procedure document. Mark/Takahashi to discuss.
   * Breadboard springs - RECEIVED.
  * 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
  * Weigh IM/RM/IRM (Fabian, Hirata) - DONE but anomalies found.
  * Pack/ship IM/RM/IRM to Kamioka (Hirata/Fabian) - from 8/1.
  * Analyze geophone data (Fabian/Shoda) - data taken by Shoda-san; Fabian to find calibration factors.
  * Remove glue from dummy BS face (Fabian) - MOSTLY DONE.
  * Reglue flags and prisms (Tatsumi, Fabian) - from Friday 8/5.
  * Clean wire for BS and RM (Hirata) - DONE
  * Get new winch parts for new wire diameters - design received from Ikenoue-san
  * Do fit/function test of winches (Fabian/Hirata)
  * Ship winches to Kamioka (Hirata/Fabian)
  * Work on BS simulation (Fabian)
  * Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata) - ONGOING.
  * 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)		 === Type B (Mark) ===
==== Report for week of 5/28 ====
 * Enzo and Mark debugged the BS BIO connections and finally got it working. There were a total of four issues identified:
  * A wrong block used in the BS real-time model.
  * The real-time model deciding to treat the cards as numbered backwards from the slot order or the jumper settings.
  * Two unlabeled cables that may have been swapped.
  * The GAS coil driver and associated cables had been labeled HPCD #1 whereas it had been #0 in the diagram.
 * Hirata-san and Kozu-kun received the final F0 blades, characterized 6 of them and, with help from Takahashi-san, installed a matched set of 3 into PI #3. It appears to be 6 kg short of the load capacity that was targeted, but still with 4 kg of margin. It is close to having a good frequency but needs another round of tuning.
 * Mark and Terrence fixed an issue with the security structure - due to a screenshot of the CAD not updated from the BS procedure to the SR one, the BF ring had been placed 180° off in yaw. We suspended the BF from the load gauge adapter, reconfigured the BF jacks to support the ring instead of the BF, and rotated the ring. Mark corrected the procedure.

==== Plan for week of 6/11 ====
 * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Tue-Fri (Mon is compensation day for f2f.)
 * --
 * Route cables through SF-BF flying saucer up to bottom of SF.
 * Add minimal ballast mass to SF (rough balance only) and weigh SF/... section.
 * Adjust BF trim mass.
 * Readjust payload.
 * Take TFs.
 * Cable, test SF LVDT and FR.
 * Add calculated ballast to SF.
 * Finish tuning F0 #3 for SR3.
 * Park F0 #1 (for SR2) in top of SR3 assembly frame.
 * Move F0 #3 behind SR3.
 * Move F0 #1 to "factory" area (in front of SRM) and start rebuild.

==== Plan for week of 6/18 ====
 * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
 * --
 * Install PI.
 * Suspend SF/... section.
 * Lots of cabling.

==== To-Do Lists, Schedule ====
 * [[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 ====

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 5/28

  • Enzo and Mark debugged the BS BIO connections and finally got it working. There were a total of four issues identified:
    • A wrong block used in the BS real-time model.
    • The real-time model deciding to treat the cards as numbered backwards from the slot order or the jumper settings.
    • Two unlabeled cables that may have been swapped.
    • The GAS coil driver and associated cables had been labeled HPCD #1 whereas it had been #0 in the diagram.
  • Hirata-san and Kozu-kun received the final F0 blades, characterized 6 of them and, with help from Takahashi-san, installed a matched set of 3 into PI #3. It appears to be 6 kg short of the load capacity that was targeted, but still with 4 kg of margin. It is close to having a good frequency but needs another round of tuning.
  • Mark and Terrence fixed an issue with the security structure - due to a screenshot of the CAD not updated from the BS procedure to the SR one, the BF ring had been placed 180° off in yaw. We suspended the BF from the load gauge adapter, reconfigured the BF jacks to support the ring instead of the BF, and rotated the ring. Mark corrected the procedure.

Plan for week of 6/11

  • Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Tue-Fri (Mon is compensation day for f2f.)
  • --
  • Route cables through SF-BF flying saucer up to bottom of SF.
  • Add minimal ballast mass to SF (rough balance only) and weigh SF/... section.
  • Adjust BF trim mass.
  • Readjust payload.
  • Take TFs.
  • Cable, test SF LVDT and FR.
  • Add calculated ballast to SF.
  • Finish tuning F0 #3 for SR3.
  • Park F0 #1 (for SR2) in top of SR3 assembly frame.
  • Move F0 #3 behind SR3.
  • Move F0 #1 to "factory" area (in front of SRM) and start rebuild.

Plan for week of 6/18

  • Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
  • --
  • Install PI.
  • Suspend SF/... section.
  • Lots of cabling.

To-Do Lists, Schedule

Vacation Info

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