Differences between revisions 153 and 190 (spanning 37 versions)
⇤ ← Revision 153 as of 2017-10-02 13:50:02 →
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Editor: MarkBarton
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← Revision 190 as of 2018-03-23 01:29:16 → ⇥
Size: 3307
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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== 2017-10-02 == == ASAP ==
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=== SR2 stuff ===
 * Replace BS service port covers, or reinforce foil with tape.
 * Cling-wrap or move:
  * White plastic table
  * Writing table
  * Tall metal table
 === 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.)--
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 * Check for bubble level and other tools in tank.
 * Remove stickers on IP and clean with ethanol (some were missed last time).
 * Wipe rusty screws on IP LVDTs and surrounding area with ethanol-soaked wipe.
 * Check that all in-air cables are labeled.
 * Fix broken pico adapter cable?
 * If possible, reroute cable to eliminate need for with feedthrough.
 * Debug all electronics, especially actuation.
 * Check IP yaw.
 * Recheck centering of suspension in assembly frame.
 * Measure IP period; adjust ballast mass.
 * Calibrate all LVDTs (Enzo, Mark). --(BF)--, --(SF)--, --(PI-GAS)--, PI-H1, PI-H2, PI-H3
 * Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
 * Set all EQ stops to proper clearance.
 * Get ready for full TFs.		  * 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.
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=== Software ===
 * Enter new IP matrices and do safe.snap.
 * Get pico drive screens fixed (Miyo-kun)
 * Update real-time model to number channels from #0.
 * Remove old OL stuff; add link to new OL stuff.
 * Remove unused screens.
 * Sort out SVN.		  * 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.
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 * 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.
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 * Get clean bag laundered.
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  * Lock washers for LBB dampers
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 * Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match.
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<<Anchor(elec)>>
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 * Update BS Circuit diagram, D1503600
  * Note removal of LED/PD on TM OSEMs.
  * Reflect gender-changers and non-flipping feedthrough adapters.
  * Reflect actual cable lengths.
  * Include LVDT pin size (1 mm).
  * Undo renumbering of IP items.
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 * Design and install GAS drift compensation 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

  • Update BS Circuit diagram, D1503600
    • Note removal of LED/PD on TM OSEMs.
    • Reflect gender-changers and non-flipping feedthrough adapters.
    • Reflect actual cable lengths.
    • Include LVDT pin size (1 mm).
    • Undo renumbering of IP items.

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)