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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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| == 2017-05-29 == | <<Anchor(ComingWeeks)>> |
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| == Facilities == | == 2017-09-25 == |
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| == Design/Purchasing == * Order longer threaded rods for arc weights on PI. * Get more cable ties. * Get another D-Sub breakout. === Main Assembly === * Reinstall blades in LBB blade units. * Do load test on LBB blade units. * Try rearranging arc weights to make room for magic wand. |
=== 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. * 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). |
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| === Electronics === * Route BF/... cabling up past SF to PI. * Route SF cabling up to PI. * Add Type 3 extensions to SF/... cables. * Move vacuum flanges to positions on assembly frame more convenient for next stage (accessible from second floor, one on each corner of frame). * Move in-air cabling to match flange positions. * Cable and test PI vertical LVDT. * Calibrate PI vertical LVDT. * Set yoke on PI vertical LVDT (if necessary). * Cable and test PI yaw stepper. * Cable and test PI vertical stepper. * Cable and test PI horizontal steppers. * Cable and test PI horizontal LVDTs. * Calibrate PI horizontal LVDTs. |
=== 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. |
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| == Real-time and SUMCON models == * Check PI section of k1visbs model. |
=== 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. |
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.
- 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.