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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]] |
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| [[../BSTestHangIssues|Issues to fix after BS Test Hang]] | [[../ToDoSR|SR To-Do Items]] [[#EveryWeek |Every Week]] [[#ComingWeeks |Coming Weeks]] <<Anchor(EveryWeek)>> |
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| * Get stuff from [[../WishList]] | |
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| == Longer Term == | <<Anchor(ComingWeeks)>> |
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| === Design/Purchasing === * Do rough mass budget for SR2/SR3/SRM. * Design SR assembly frame. * Get another D-Sub breakout (Hirata). * Design final SF ballast masses (Fabian). * Finish/post assembly drawing for LBB and LBB damper ring (Hirata). * 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). |
== 2017-09-25 == |
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| === Real-time and SUMCON models === | === Main Assembly Sequence === * --(Move in-air cabling and feedthroughs and reconnect in-vacuum cables (through Cu O-rings).)-- * --(Fix #1 geophone adapter cable.)-- * Fix broken pico adapter cable? * Debug all electronics, starting with IRM OSEMs. (half done) * --(Unlock IP; use jacks and FRs to center.)-- * Check IP yaw. * Recheck centering of suspension in assembly frame. * Measure IP period; adjust ballast mass. * Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs. * LBB stuff (see below). * === LBB Sequence === * --(Unclamp LBB ring sandwich; fully suspend Cu ring.)-- * --(Unscrew LBB from tank brackets.)-- * --(Hook LBB.)-- * --(Remove TBD amount of spacers from between LBB and tank brackets.)-- * --(Set LBB blade stops to nominal height.)-- * --(Extend foot screws on LBB to just barely support LBB.)-- * --(Adjust height of LBB magnet ring to set proper gap (4 mm??).)-- * --(Retract LBB foot screws.)-- * --(Add temporary ballast to LBB until LBB blades just barely sink below stops.)-- * --(Check distance from LBB to main beam height (or other suitable reference); adjust by screwing receptacles.)-- * --(Set foot screws to give ≈5 mm (or TBD) movement range of LBB below nominal.)-- * --(Set stop on LBB blades to give ≈3 mm (or TBD, less than Cu-magnet gap) of LBB above nominal.)-- === In parallel, time permitting === <<Anchor(RealBSHang)>> == Tasks Not To Forget == === Major Tasks === * 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). * Get pico drive screens fixed (Miyo-kun) * Figure out how to make PI yaw adjustment reliable. === Minor Tasks === ==== Mechanical ==== * Get clean bag laundered. * Put pointy-tipped screw in RM trolley for BS * Return/replace borrowed parts: * Lock washers for LBB dampers * Temporary ballast mass (dog clamps) in BF. * Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match. ==== Electrical ==== * Decide final in-vacuum and in-air cable routing (Enzo). * Calibrate all LVDTs (Enzo, Mark). --(BF)--, --(SF)--, --(PI-GAS)--, PI-H1, PI-H2, PI-H3 * Adjust yoke on PI to put top of secondary at TBD mm above top of baseplate (or to give ≈0 counts at nominal height). ==== 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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| * Create a proper DAC Monitor MEDM screen. * Improve ADC Monitor MEDM screen. == BS Prism/Flag Gluing == * Locate new flags (Mitaka?). * Locate mirror box (Mitaka). * Locate prisms (Mitaka?). * Arrange time with Hirose-san. * Launder, pack clean suits etc for Kashiwa. == 2017-06-19 == === Facilities === * Remove cling wrap from stuff. * Plug stuff back in (charging station, KOACH filters, OL etc). * Power up rack. === Main Assembly === * Unlock BF keystone and try running BF fishing rod to fix sag problem. * Do up all EQ stops etc (except SF). * Remove geophones. * Crane suspension into tank. * Hook LBB Cu ring. * Hook LBB. * Crane vacuum tank lid+ring black on. * Remove vacuum tank lid (only). === Electronics === * Calibrate PI vertical LVDT. * Set yoke on PI vertical LVDT (if necessary). * Calibrate PI horizontal LVDTs. * Remove port covers where feedthroughs will go, move feedthroughs from assembly frame and install on vacuum tank ring. * Reconnect in-air cables. === Real-time and SUMCON models === * Derive and install PI LVDT matrices. * Check LSOL section of k1visbs model. * |
VIS Type B BS Near Term To-Do List
Every Week
Facilities
- Vacuum and roll floor.
- Wipe ladders.
- Tidy tools, parts.
Get stuff from ../WishList
2017-09-25
Main Assembly Sequence
Move in-air cabling and feedthroughs and reconnect in-vacuum cables (through Cu O-rings).
Fix #1 geophone adapter cable.
- Fix broken pico adapter cable?
- Debug all electronics, starting with IRM OSEMs. (half done)
Unlock IP; use jacks and FRs to center.
- Check IP yaw.
- Recheck centering of suspension in assembly frame.
- Measure IP period; adjust ballast mass.
- Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
- LBB stuff (see below).
LBB Sequence
Unclamp LBB ring sandwich; fully suspend Cu ring.
Unscrew LBB from tank brackets.
Hook LBB.
Remove TBD amount of spacers from between LBB and tank brackets.
Set LBB blade stops to nominal height.
Extend foot screws on LBB to just barely support LBB.
Adjust height of LBB magnet ring to set proper gap (4 mm??).
Retract LBB foot screws.
Add temporary ballast to LBB until LBB blades just barely sink below stops.
Check distance from LBB to main beam height (or other suitable reference); adjust by screwing receptacles.
Set foot screws to give ≈5 mm (or TBD) movement range of LBB below nominal.
Set stop on LBB blades to give ≈3 mm (or TBD, less than Cu-magnet gap) of LBB above nominal.
In parallel, time permitting
Tasks Not To Forget
Major Tasks
- 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).
- Get pico drive screens fixed (Miyo-kun)
- Figure out how to make PI yaw adjustment reliable.
Minor Tasks
Mechanical
- Get clean bag laundered.
- Put pointy-tipped screw in RM trolley for BS
- Return/replace borrowed parts:
- Lock washers for LBB dampers
- Temporary ballast mass (dog clamps) in BF.
- Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match.
Electrical
- Decide final in-vacuum and in-air cable routing (Enzo).
Calibrate all LVDTs (Enzo, Mark). BF, SF, PI-GAS, PI-H1, PI-H2, PI-H3
- Adjust yoke on PI to put top of secondary at TBD mm above top of baseplate (or to give ≈0 counts at nominal height).
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.
- Design and install GAS drift compensation filters.