Differences between revisions 70 and 181 (spanning 111 versions)
⇤ ← Revision 70 as of 2017-06-25 21:33:11 →
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← Revision 181 as of 2017-12-09 12:03:11 → ⇥
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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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[[../ToDoOld|Archived To-Do Items]] [[../ToDoOldBS|Archived BS To-Do Items]]

[[../ToDoSR|SR To-Do Items]]
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[[#RealBSHang|Preparation for Real BS Hang]]

[[#SRPrepTasks|Preparation for SR Installation]]
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== Coming Weeks (2017-06-19, 2017-06-26) ==
=== Facilities ===
 * --(Power up rack.)--
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=== Design/Documentation ===
 * Design final BF/SF ballast mass assuming BF can be made to work without rebuild (Fabian).
 * Finish assembly drawing for LBB and LBB damper ring and post on JGWDoc (Hirata-san).
 * Do version of 3D CAD with test-hang arrangement of suspension and LBB damper stuff (Hirata-san).
 * Do version of 3D CAD with final-hang arrangement of suspension and LBB damper stuff (Hirata-san).		 == ASAP ==
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=== Main Assembly ===
 * Adjust pitch/yaw/vertical of dummy optic.
 * Crane tank lid on.
 * Start TFs.		 === Main Assembly Sequence ===
 * Improve OL offloading.
 * Improve GAS offloading.
 * Spectral analysis of Oplev.
 * Design, install angular lock servo using OL.
 * Adjust gains and debug damping for IM OSEMs and GAS LVDTs.
 * Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553)
 * Subtract DC level of Geophones.
 * Spectra analysis of PI sensors (PI LVDTs and Geophones).
 * Design PI Sensor blending filter.
 * Modify IP LVDT damping filters to include set point.
 * Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
 * Set all EQ stops to TBD clearance.
 * Measure IP period; adjust ballast mass.
 * TFs.
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=== Electronics ===
 * Wash extra F-F gender benders.
 * Fix broken picomotor cable.
 * Install new LVDT driver and set gains.
 * Document LVDT driver rebuild and other changes.
 * Debug all cabling!
 * Get pico drive screens fixed (Miyo-kun)
 * Sort out naming convention for PI LVDTs, geophones and horizontal steppers.		 === 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.
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=== LSOL ===
 * Assist Simon with hardware installation of LSOL.
 * Assist Simon with modifications to realtime model for LSOL.		 === Medm screens ===
 * Remove unused screens.
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=== Real-time and SUMCON models ===
 * Derive and install PI LVDT matrices.
 * Check LSOL section of k1visbs model.		 === Documentation and Operation Manual ===
 * 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.
 * Add useful info from Enzo's notebook to BSData.

=== Design ===
 * Finalize redesign of IP yaw adjuster.
 * Design better F0 FR adjuster.
 * Design LBB ballast mass.
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== Real BS Hang Tasks == == Tasks Not To Forget ==
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 * Final ballast mass design/production for BF and SF (Fabian, Hirata-san).
 * Get final OSEM cables (six of 1.7 m, two of 2.2 m, two of 2.4 m; Sato-san).
 * Possible rebuild of BF and/or SF
  * Set up build/test stand for filters.
  * Get filter test weights.
  * Find spare BF blade(s).
 * Prepare real BS:
  * Coordinate with Hirose-san.
  * Book transport of mirror (Kashiwa to KAGRA)
  * Gather mirror box, gluing supplies, prisms, magnets, new flags, new flag jigs.
  * Solve problem of lack of scribe line on one side of BS (Mark, Hirata-san).
  * Organize cleanroom gear for Kashiwa trip(s).
  * Put magnets in flags.
  * Glue flags/prisms at Kashiwa.
 * Reclean stuff:
  * PI (remove Kapton tape etc, etc).
  * LLB damper stuff, especially Cu segments.
 * Try rearranging arc weights to make room for magic wand (3D CAD or actual weights; Fabian or Hirata).
 * If needed based on previous, order longer threaded rods for arc weights on PI (Hirata).
 * Calibrate PI vertical LVDT.
 * Set yoke on PI vertical LVDT (if necessary).
 * Calibrate PI horizontal LVDTs.
 * Unlock BF keystone and try running BF fishing rod to fix sag problem.		  * Move safety bars from BS AF area to SR2 area.
 * Close hole in floor above BS AF area.
 * Wipe any rust from around IP LVDTs.
 * 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.
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 * Get clean bag laundered.
 * Swap out temporary ballast mass in BF, SF.		  * Put pointy-tipped screw in RM trolley for BS
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  * Lock washers for LBB dampers
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  * Wide-mouth OSEMs from RM to Akutsu-san
 * Adjust height of crossbars below BF.
 * If possible, fix galled pole in BF level of EQ stop.
 * Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match.
 * Check inside SF for lost ruler.
 * Tighten PI yaw return spring.
 * Get Cu O-rings for feedthroughs.
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 * Decide final in-vacuum and in-air cable routing (Enzo).
 * Calibrate all LVDTs (Enzo, Mark).
 * Remove cling wrap in BF and install vacuum-compatible heat shrink.
 * Remove cling wrap on connections for PI vertical stepper and install vacuum-compatible heat shrink (needs wider diameter heat shrink or smaller pins).
 * Rewire PI horizontal steppers with vacuum-compatible cable.
 * Adjust yoke on BF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height).
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 * Design and install GAS drift compensation filters.
 * Create a proper DAC Monitor MEDM screen.
 * Improve ADC Monitor MEDM screen.

<<Anchor(SRPrepTasks)>>

== SR Prep Tasks ==
=== Design/Purchasing ===
 * Do rough mass budget for SR2/SR3/SRM.
 * Design SR assembly frame.
 * Design final SF ballast masses (Fabian).

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

Main Assembly Sequence

  • Improve OL offloading.
  • Improve GAS offloading.
  • Spectral analysis of Oplev.
  • Design, install angular lock servo using OL.
  • Adjust gains and debug damping for IM OSEMs and GAS LVDTs.

  • Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553)

  • Subtract DC level of Geophones.
  • Spectra analysis of PI sensors (PI LVDTs and Geophones).
  • Design PI Sensor blending filter.
  • Modify IP LVDT damping filters to include set point.
  • Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
  • Set all EQ stops to TBD clearance.
  • Measure IP period; adjust ballast mass.
  • TFs.

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.

Documentation and Operation Manual

  • 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.
  • Add useful info from Enzo's notebook to BSData.

Design

  • Finalize redesign of IP yaw adjuster.
  • Design better F0 FR adjuster.
  • Design LBB ballast mass.

Tasks Not To Forget

Major Tasks

  • Move safety bars from BS AF area to SR2 area.
  • Close hole in floor above BS AF area.
  • Wipe any rust from around IP LVDTs.
  • 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)