Differences between revisions 400 and 411 (spanning 11 versions)
⇤ ← Revision 400 as of 2019-03-08 14:05:56 →
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Editor: MarkBarton
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==== Report for the week of 3/4 ====
 * On Monday, Mark helped Aso-san with PR3, and Monday, Tuesday and Wednesday, Fabian helped Fujii-kun with PRM.
 * Mark and Terrence attempted to offload some BS IM/IRM yaw adjustments that had been done by Enomoto-san last Friday. They rezeroed the OL and then opened the tank lid and did a compensating adjustment to the F0 yaw stepper, then undid the IM/IRM yaw with the pico. However this did not have the desired effect, probably because the buoyancy correction had not been cancelled when Enomoto-san was working and the BF keystone was very high, with the IM-V OSEMs way too far in and possibly touching. We did our best to back out all the adjustments but the roll TFs were still messy and there were signs that the IM was not free in yaw (the IM/IRM Y varied oppositely to IP Y, indicating that the IMR was free and the IM wasn't). We ended up deciding to have Mirapro remove the ducts on the ±X sides of the tank so we could go in and inspect.
 * Terrence tuned the SR3 LEN OL to be free of yaw cross-coupling.
 * Terrence and Enzo did a full set of filters and a Guardian for SR2 and SR3.
 * Terrence did health checks on SR2 and SR3.
 * Enzo measured mode Qs on SR2.		 ==== 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.
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==== Plan for week of 3/11 ====
 * Mark at Kamioka full week.
 * Enzo at Kamioka Mon, Tue, then JPS.
 * Hirata-san at Kamioka from Monday lunchtime through Friday.
 * Fix BS.
 * Final test of stepper remote enable system (someone in cleanroom checks the lights go on/off).
 * Continue monitoring SRM yaw drift.
 * More mode Q measurements.		 ==== 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).
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 * Tidy up.
  * Gather and clean tools.
  * Gather and organize unused parts and fasteners.
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 * Enzo at JPS then final vacation, 3/13-29
 * Terrence's last day, 3/29.		  * 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)