Differences between revisions 188 and 210 (spanning 22 versions)
Revision 188 as of 2018-03-07 11:43:36
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Editor: MarkBarton
Revision 210 as of 2019-01-04 15:21:23
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Editor: MarkBarton
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This list has been merged into the common Type B list: [[../ToDo]].
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[[../ToDoSR|SR To-Do Items]]

[[#EveryWeek |Every Week]]

[[#ComingWeeks |Coming Weeks]]


== Every Week ==
=== Facilities ===
 * Vacuum and roll floor.
 * Wipe ladders.
 * Tidy tools, parts.
 * Get stuff from [[../WishList]]


== ASAP ==

=== Pumpdown Prep ===
 * Prepare BS Chamber
  * --(Remove non-vacuum-compatible ballast from LBB.)--
  * --(Check for lost tools.)--
  * Wipe down all accessible areas inside tank with Vector Alpha wipes and ethanol.
 * Help Type Bp Team
  * --(Add screws to cables at PR2 feedthroughs.)--

=== Main Assembly Sequence ===
 * Necessary for phase-I★★★
  * --(Modify IP LVDT damping filters to include set point.)--
  * --(TFs.)--
  * '''''EXCHANGE YAW/VERT FRs at F0'''''
  * Check IP BIO is working or not.

 * Necessary for phase-II★★
  * Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553)
  * Design PI Sensor blending filter.
  * Re-calibrate F0 GAS LVDT
  * Tune the LVDT sensitivity
  * Measure IP period; adjust ballast mass.

 * At some point (remotely)★
  * Improve OL offloading.
  * Improve GAS offloading.
  * Spectral analysis of Oplev.
  * Design, install angular lock servo using OL. (Almost done for phase-I)
  * Adjust gains and debug damping for IM OSEMs and GAS LVDTs. (Almost done for phase-I)
  * Subtract DC level of Geophones.
  * Spectra analysis of PI sensors (PI LVDTs and Geophones).
  * Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
  * Set all EQ stops to TBD clearance.
  * Modify the model for IP coil driver control

=== Documentation and Operation Manual ===
 * Add useful info from Enzo's notebook to BSData.

== Tasks Not To Forget ==
=== Major Tasks ===
 * Move safety bars from BS AF area to SR2 area.
 * Close hole in floor above BS AF area.
 * Update circuit diagram.
 * (Time permitting) Try adding mass to IP.
 * Update BS Install Procedure with screenshots from new on-assembly-frame 3D CAD.
 * Finish assembly drawing for LBB and LBB damper ring and post on JGWDoc (Hirata-san).
 * Figure out how to make PI yaw adjustment reliable.

=== Minor Tasks ===
==== Mechanical ====
 * Put pointy-tipped screw in RM trolley for BS
 * Return/replace borrowed parts:
  * Temporary ballast mass (dog clamps) in BF.

==== Electrical ====

==== Real-time and SUMCON models ====
 * Create SUMCON models for full BS and major installation milestones.
 * Create controls design description (cf [[https://dcc.ligo.org/LIGO-T1100378/public|LIGO-T1100378]]).
 * Make table of ADC/DAC assignments and check for consistency with D1503600 and k1visbs (Enzo, Mark)
 * Understand/document/debug Kokeyama-san's DIO stuff.
 * Measure LPCD and HPCD output filter response.
 * Design and install software compensation filters for LPCD and HPCD output filters.

VIS Type B BS Near Term To-Do List

This list has been merged into the common Type B list: ../ToDo.

Archived BS To-Do Items

KAGRA/Subgroups/VIS/TypeB/ToDoBS (last edited 2019-01-04 15:21:23 by MarkBarton)