|
Size: 2146
Comment:
|
Size: 3346
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = VIS Type B Near Term To-Do List = | = VIS Type B BS Near Term To-Do List = |
| Line 3: | Line 3: |
| 2017-04-03 | [[../ToDoOldBS|Archived BS To-Do Items]] |
| Line 5: | Line 5: |
| == Facilities (mostly full team) == * Clean up after floor work. |
[[../ToDoSR|SR To-Do Items]] [[#EveryWeek |Every Week]] [[#ComingWeeks |Coming Weeks]] <<Anchor(EveryWeek)>> == Every Week == === Facilities === |
| Line 10: | Line 18: |
| * Get stuff from [[../WishList]] | |
| Line 11: | Line 20: |
| == Hanging BF/IRM/IM/RM/BS (mostly Mark, Fabian, Perry) == * Reroute in-vacuum cables up to SF level; add in-vacuum extension cables if necessary. * Test SF LVDT. * Test SF fishing rod stepper. |
<<Anchor(ComingWeeks)>> |
| Line 16: | Line 22: |
| == Electronics (mostly Enzo, Mark) == * Make more anti-feedthrough adapters. * Add retaining screws to cables at feedthroughs (mostly done, needs finishing). * Work with Miyo-kun to get pico drivers added to BS rack and screens * Update E1503600 with DIO card for HPCDs, etc, etc. * Decide final length for BS OSEM cables (Enzo, Mark, Fabian) * Send list of required in-vacuum cables to Takahashi-san |
== 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 === <<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]]). |
| Line 24: | Line 79: |
| * Make spreadsheet on Google Docs or the like with in-vacuum cable inventory (Hirata) == PI Prep == * Prepare PI for moving. * Remove accelerometers. * Remove large weights. * Remove arc weights (move some to second floor, wrap rest for storage). * Attach lifting plates. * Wrap with clingwrap, cover with spare cleanbag. * Clear path to remove PI with forklift. * Move worktables. * Move portable cleanroom. * Shutdown rack and move electrical cables. * Prepare second floor for receiving PI. * Clean and clingwrap pallet. * Double-check dimensions. * Disconnect fan cables, curtain. * Crane PI into clean booth. * Finish reattaching repaired LVDT coil(s) and redoing connectors with correct gender. * Install fishing rod. * Find table, weights, etc for use with LBB blade bending jigs. * Install LLB blades. * Install LLB blade units in PI. == Real-time and SUMCON models (mostly Perry, Mark) == * Get Perry (and Enzo) set up with SUMCON. * Update SUMCON model of full BS. * Do cut-down SUMCON model of just payload hanging from fixed BS. * Compare measured TFs to cut-down model(s). * Create a proper DAC Monitor MEDM screen. * Improve ADC Monitor MEDM screen. |
* 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. |
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.