Differences between revisions 37 and 234 (spanning 197 versions)
⇤ ← Revision 37 as of 2016-07-13 03:09:22 →
Size: 2317
Editor: MarkBarton
Comment:
← Revision 234 as of 2018-02-16 11:17:19 → ⇥
Size: 2883
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
Line 5: Line 5:
 * Type B Past Week Summary
  * Fabian took photos of the cleanroom in the ATC.
  * Hirata-san ordered wire for the BS.
  * Fabian weighed the masses that he'd been constructing in the cleanroom and found a 600 g discrepancy from the Inventor.
  * Hirata-san ordered a medium-capacity scale to help check the masses of the parts.
 * 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)
   * Nail-head parts - 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
  * Apply grease to jacks for assembly frame (Takahashi)
  * Finish assembly of BS IM, RM and IRM (Fabian).
  * Weigh IM/RM/IRM (Fabian, Hirata)
  * Pack/ship IM/RM/IRM to Kamioka (Hirata/Fabian).
  * Analyze geophone data (Mark, Shoda)
  * Remove glue from dummy BS face (Fabian)
  * Remove prism from dummy BS (Hirose, Fabian?)
  * Reglue flags and prisms (Tatsumi, Fabian)
  * Buy wire for BS and RM (Hirata)
  * Clean wire for BS and RM (Hirata)
  * 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)
  * Apply vacuum grease to jacks for BS assembly frame (Takahashi)
  * 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 1/29 ====
 * Fabian and Kozu-kun tested the FR stepper, and calibrated the keystone height as a function of FR position.
 * Fabian, Hirata-san and Kozu-kun installed and adjusted the IRM, IM OSEMs and associated cables.
 * Mark derived the diagonalization matrices for SR, posted them as [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7663| T1807663]] and entered them in the on-line system.
 * Mark fixed the GASALL screen, which had some elements hardwired to BS and did not work for SR2.
 * Mark initialized the watchdog section of the SR2 model (filters, thresholds etc).
 * Mark re-entered the IM OSEM2EUL offsets and gains, which had been entered by Enzo, but had not been saved and had been lost.
 * Mark identified and fixed a bug in the SF2 whereby the watchdog trigger was derived from the AND of the error signals from the various stages instead of the OR. Thus all stages would have to overload before the watchdog tripped. All other VIS models were similarly affected, and all affected library parts have been fixed, but the other models need to be rebuilt, which should be done at the earliest opportunity, e.g., early next week after the scheduled power outage on Sun 2/18.
 * Mark fixed the indicators for the watchdog on the OVERALL screen, which also had bad logic.
 * Mark tried using Shoda-san's measurement script to do TFs. It ran successfully, but the first data set was no good because of two issues: the excitation was apparently too large (even after a reduction by 20) and the SENSALIGN matrix was not initialized.
 * Hirata-san negotiated with Kimura-san to get the SRM tank mushroom installed (this will probably happen from Tue on the week of 3/5).

==== Plan for week of 2/19 ====
 * Enzo back from Tuesday.
 * Shoda-san at Mitaka.
 * Hirata-san at Mitaka Mon+Tue (to receive and wash parts).
 * All others at Kamioka.
 * -
 * Do TFs from IM OSEMs to IM OSEMs, OL pitch/yaw.
 * Lift BF/... section and check total mass and balance.
 * Cable and test BF picos.
 * Add section of SS up to SF ring.
 * Bring in SF.
 * Hook BF/... section.
 * Route cables up to under SF.
 * Check/adjust total mass of BF/... section.

==== Plan for week of 2/26 ====
 * Shoda-san at Mitaka.
 * -
 * Add Cu segments to SF cap.
 * Lift SF/... section and check total mass and balance.

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/March2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/BS2Do]]
 * [[KAGRA/Subgroups/VIS/TypeB/SR2Do]]
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]]

==== Vacation Info ====
 * Enzo 1/30-2/19.
 * Fabian 4/2-4/27 vacation (then gone).

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 1/29

  • Fabian and Kozu-kun tested the FR stepper, and calibrated the keystone height as a function of FR position.
  • Fabian, Hirata-san and Kozu-kun installed and adjusted the IRM, IM OSEMs and associated cables.

  • Mark derived the diagonalization matrices for SR, posted them as T1807663 and entered them in the on-line system.

  • Mark fixed the GASALL screen, which had some elements hardwired to BS and did not work for SR2.
  • Mark initialized the watchdog section of the SR2 model (filters, thresholds etc).
  • Mark re-entered the IM OSEM2EUL offsets and gains, which had been entered by Enzo, but had not been saved and had been lost.
  • Mark identified and fixed a bug in the SF2 whereby the watchdog trigger was derived from the AND of the error signals from the various stages instead of the OR. Thus all stages would have to overload before the watchdog tripped. All other VIS models were similarly affected, and all affected library parts have been fixed, but the other models need to be rebuilt, which should be done at the earliest opportunity, e.g., early next week after the scheduled power outage on Sun 2/18.
  • Mark fixed the indicators for the watchdog on the OVERALL screen, which also had bad logic.
  • Mark tried using Shoda-san's measurement script to do TFs. It ran successfully, but the first data set was no good because of two issues: the excitation was apparently too large (even after a reduction by 20) and the SENSALIGN matrix was not initialized.
  • Hirata-san negotiated with Kimura-san to get the SRM tank mushroom installed (this will probably happen from Tue on the week of 3/5).

Plan for week of 2/19

  • Enzo back from Tuesday.
  • Shoda-san at Mitaka.
  • Hirata-san at Mitaka Mon+Tue (to receive and wash parts).
  • All others at Kamioka.
  • -
  • Do TFs from IM OSEMs to IM OSEMs, OL pitch/yaw.
  • Lift BF/... section and check total mass and balance.
  • Cable and test BF picos.
  • Add section of SS up to SF ring.
  • Bring in SF.
  • Hook BF/... section.
  • Route cables up to under SF.
  • Check/adjust total mass of BF/... section.

Plan for week of 2/26

  • Shoda-san at Mitaka.
  • -
  • Add Cu segments to SF cap.
  • Lift SF/... section and check total mass and balance.

To-Do Lists, Schedule

Vacation Info

  • Enzo 1/30-2/19.
  • Fabian 4/2-4/27 vacation (then gone).

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