Differences between revisions 184 and 185
Revision 184 as of 2017-12-15 15:54:38
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Editor: AyakaShoda
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Revision 185 as of 2018-02-28 15:12:46
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Editor: MarkBarton
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Deletions are marked like this. Additions are marked like this.
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 * '''Remove non-vacuum-compatible ballast from LBB.'''
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=== Software ===
 * Update real-time model to number channels from #0.
 * Do better interface to IP steppers (make a wrapper for Miyo-kun's driver which includes geometry matrix; adapt Shoda-san's version).
 * --(Write a guardian.)--
 * Sort out SVN.
 * Create SUMCON model with values commented.

=== Medm screens ===
 * Remove unused screens.
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 * Publish matrices for IP FRs.
 * Publish matrices for BS PI sensors v4.
 * Finish Foton Operation Manual page.
 * Complete MEDM Operation Manual page.
 * Pico Motor Operation Manual page.
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=== Design ===
 * Finalize redesign of IP yaw adjuster.
 * Design better F0 FR adjuster.
 * Design LBB ballast mass.
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 * Wipe any rust from around IP LVDTs.

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

  • Remove non-vacuum-compatible ballast from LBB.

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)