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Revision 1 as of 2017-03-12 19:19:05
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Editor: MarkBarton
Comment:
Revision 187 as of 2018-03-02 15:30:05
Size: 3017
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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= VIS Type B Near Term To-Do List = = VIS Type B BS Near Term To-Do List =
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To-Do List 2017-03-13 [[../ToDoOldBS|Archived BS To-Do Items]]
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== Facilities ==
 * Vacuum and roll floor (All)
 * Wipe ladders (All)
 * Tidy tools, parts (All)
 * Find missing light lent to Kokeyama-san (Mark)
 * Mark/photograph/count peeling patches on the floor.
 * Mark/photograph/count pillars with bare concrete bases.
[[../ToDoSR|SR To-Do Items]]
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== Electronics == [[#EveryWeek |Every Week]]
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 * Wire up BF roll/pitch picos (Enzo)
 * Work with Miyo-kun to get pico drivers added to BS rack and screens (Enzo, Mark)
 * Grab remaining cables etc per E1605111 and update document (Enzo)
 * Update E1503600 with DIO card for HPCDs, etc, etc. (Enzo)
 * Decide final length for BS OSEM cables (Enzo, Mark, Fabian)
 * Send list of required in-vacuum cables to Takahashi-san (Enzo, Mark)
 * Debug 900 Hz noise on BF LVDT output (Enzo, Mark)
 * Debug excess noise on TM-H3 OSEM (Enzo, Mark)
[[#ComingWeeks |Coming Weeks]]

<<Anchor(EveryWeek)>>

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

<<Anchor(ComingWeeks)>>

== 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.

<<Anchor(RealBSHang)>>
== 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]]).
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 * Make spreadsheet on Google Docs or the like with in-vacuum cable inventory (Hirata)

== PI Prep ==
 * Inspect PI, compare to CAD and 2D drawings (Hirata, Mark)
 * Identify missing PI parts (Hirata, Mark)
 * Find and reattach repaired LVDT coil(s) (???)

== Hanging BF/IRM/IM/RM/BS ==
 * Correct orientation of SF cap (Mark, Fabian, Perry)
 * Correct orientation of SF (Mark, Fabian, Perry)
 * Find/attach cable clamps for SF (Fabian)

== Real-time and SUMCON models ==
 * Update SUMCON model of full BS (Perry?, Okitomi?, Mark?)
 * Do cut-down SUMCON model of just payload hanging from fixed BS (Perry?, Okitomi?, Mark?)
 * Compare measured TFs to cut-down model
 * Create a proper DAC Monitor MEDM screen
 * Improve ADC Monitor MEDM screen
 * 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

Archived BS To-Do Items

SR To-Do Items

Every Week

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 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.

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