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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 wiped one set each of wires for the BS and RM (addition sets pending).
  * Hirata-san washed remachined locking parts for the IM and screws for jacks.
  * Hirata-san liaised with Ikenoue-san of ATC to get new winch parts designed for the new wire thicknesses. Ikenoue-san provided updated designs for checking.
  * Hirata-san worked on the Inventor 3D assembly of the SR2.
  * The scale for checking the masses of the IM parts was received.
  * Fabian and Hirata-san identified an issue with the lock screws between the IM and IRM. The screws were slightly too large, and correcting the size with a die caused large flakes of the black coating to come off. (These screws were ordered before the current screw policy was instituted.) Hirata-san will order better screws from Misumi and have additional machining done on them.
  * Fabian tracked down the calibration factors for the geophones and generated a calibrated plot.
 * 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]]; first 4 expected to be assembled and washed by 8/8)
  * 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
  * 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.
  * Reglue flags and prisms (Tatsumi, Fabian)
  * 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)
  * Check SR RM machining test progress (Hirata)		 === Type B (Mark) ===
==== Report for the week of 4/15 ====
 * Fabian debugged a dead stepper on SR3 (broken driver channel) and a dead geophone on SRM (unplugged cable). He made another update to the table used by the Python script for the stepper driver MEDM screen to reflect the remapping.
 * Fabian monitored the pumpdown and he and Hirata-san did post-pumpdown checks of all the suspensions. They were all healthy.
 * Hirata-san participated in the health checks and learned about the computer systems.
 * Mark did major revisions to the MEDM menu on the OVERVIEW screen with scripts for making `safe.snap` files and snapshots of setpoints. He made the `safe.snap` files in directories under `/opt/rtcds/kamioka/k1/target` into symbolic links to files in `/opt/rtcds/userapps/release/vis/k1/burtfiles`, alongside the setpoint files, so that they could be backed up to the SVN (as at LIGO).
 * Mark did major updates to his `vistools.py` Python package for manipulating the suspensions (based on his LIGO `sustools.py`). He added entries for Type B suspensions to the internal database and added commands for manipulating SET and DCCTRL blocks. He also added commands to simulate pressing on the `CLEAR HISTORY` and `LOAD COEFFICIENTS` buttons.
 * Mark started updating the `TYPEB.py` Guardian definition file to use `vistools.py`. So far only the `ENGAGING_IP_CONTROL` state has been fully rewritten and tested, but other states will be simple adaptations. It should be easy to do Type A and other Guardians in the same style.

==== Plan for week of 4/22 ====
 * Mark, Terrence at Kamioka Mon-Fri.
 * Fabian at Kamioka Mon-Thu.
 * Work with Lucia to do blending of the IP LVDTs and geophones.
 * More Guardian improvements.
  * Improve `vistools.py` (add more useful functions; add docstrings; add support for Type A/Bp/C; create test suite).
  * Finish and test new Guardian code using `vistools.py`.
  * Modify RT models and/or Guardian to revert to the SAFE state under control in all but the most extreme emergency situations (rather than suddenly shutting off all output).
 * Work on Type B paper.
 * Tidy up.
  * Gather and clean tools.
  * Gather and organize unused parts and fasteners.

==== Vacation/Travel Info ====
 * Terrence's next visit from 4/18.
 * Fabian's vacation 4/26 to 5/10.
 * Mark's US vacation from 5/22 to 6/11.
 * Mark's final day 6/28.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for the week of 4/15

  • Fabian debugged a dead stepper on SR3 (broken driver channel) and a dead geophone on SRM (unplugged cable). He made another update to the table used by the Python script for the stepper driver MEDM screen to reflect the remapping.
  • Fabian monitored the pumpdown and he and Hirata-san did post-pumpdown checks of all the suspensions. They were all healthy.
  • Hirata-san participated in the health checks and learned about the computer systems.

  • Mark did major revisions to the MEDM menu on the OVERVIEW screen with scripts for making safe.snap files and snapshots of setpoints. He made the safe.snap files in directories under /opt/rtcds/kamioka/k1/target into symbolic links to files in /opt/rtcds/userapps/release/vis/k1/burtfiles, alongside the setpoint files, so that they could be backed up to the SVN (as at LIGO).

  • Mark did major updates to his vistools.py Python package for manipulating the suspensions (based on his LIGO sustools.py). He added entries for Type B suspensions to the internal database and added commands for manipulating SET and DCCTRL blocks. He also added commands to simulate pressing on the CLEAR HISTORY and LOAD COEFFICIENTS buttons.

  • Mark started updating the TYPEB.py Guardian definition file to use vistools.py. So far only the ENGAGING_IP_CONTROL state has been fully rewritten and tested, but other states will be simple adaptations. It should be easy to do Type A and other Guardians in the same style.

Plan for week of 4/22

  • Mark, Terrence at Kamioka Mon-Fri.
  • Fabian at Kamioka Mon-Thu.
  • Work with Lucia to do blending of the IP LVDTs and geophones.
  • More Guardian improvements.

    • Improve vistools.py (add more useful functions; add docstrings; add support for Type A/Bp/C; create test suite).

    • Finish and test new Guardian code using vistools.py.

    • Modify RT models and/or Guardian to revert to the SAFE state under control in all but the most extreme emergency situations (rather than suddenly shutting off all output).
  • Work on Type B paper.
  • Tidy up.
    • Gather and clean tools.
    • Gather and organize unused parts and fasteners.

Vacation/Travel Info

  • Terrence's next visit from 4/18.
  • Fabian's vacation 4/26 to 5/10.
  • Mark's US vacation from 5/22 to 6/11.
  • Mark's final day 6/28.

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