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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 | [[../ToDoOldBS|Archived BS To-Do Items]] [[../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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== 2017-05-15 == | <<Anchor(ComingWeeks)>> |
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== Facilities == * --(Clear spaces for PR2 bellows work and SR2 ladder installation on 5/15.)-- * --(Fix safety bar on -X side of assembly frame (move to other side of pillars and attach more securely).)-- |
== 2017-10-02 == |
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== Design/Purchasing == * Order longer threaded rods for arc weights on PI. * Design, order modifications to LBB blade springs. * Get more UHV foil. |
=== SR2 stuff === * Replace BS service port covers, or reinforce foil with tape. * Cling-wrap or move: * White plastic table * Writing table * Tall metal table |
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=== Main Assembly === * --(Secure arc weights with M8 nuts.)-- * --(Remove PI.)-- * --(Unjam PI-SF rod.)-- * --(Remove SF cap.)-- * --(Remove blades from LBB blade units)-- and send off for rework. * Install remaining cable clamps on PI. * --(Remove one Cu damper segment from SF cap and reconfigure remaining two to be symmetrical.)-- * Decide pattern of SF damper ring magnets (72 pieces in 2/3 of the original ring). * Install magnets on SF damper ring. * Lift PI and hang LBB damper ring. * Crane PI back in. * Install rod, this time with hex cable clamp. * Re-hook SF/... section. * Install geophones. |
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=== Electronics === * Debug and calibrate SF LVDT. * Put connector on PI vertical LVDT wires per E1503600-v13 Sheet 5. * Make PI vertical/yaw stepper in-air adapter cable per E1503600-v13 Sheet 7. * Make (in-air) geophone unscrambler cables per E1503600-v13 Sheet 8. * Complete cabling of PI stuff (steppers, LVDTs, geophones) through to rack and test. * Review cable spreadsheet; send to Sato-san. |
=== Main Assembly Sequence === * Check for bubble level and other tools in tank. * Remove stickers on IP and clean with ethanol (some were missed last time). * Wipe rusty screws on IP LVDTs and surrounding area with ethanol-soaked wipe. * Check that all in-air cables are labeled. * Fix broken pico adapter cable? * If possible, reroute cable to eliminate need for with feedthrough. * Debug all electronics, especially actuation. * 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. * Get ready for full TFs. === Software === * Enter new IP matrices and do safe.snap. * Get pico drive screens fixed (Miyo-kun) * Update real-time model to number channels from #0. <<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). * 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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== Real-time and SUMCON models == |
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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
2017-10-02
SR2 stuff
- Replace BS service port covers, or reinforce foil with tape.
- Cling-wrap or move:
- White plastic table
- Writing table
- Tall metal table
Main Assembly Sequence
- Check for bubble level and other tools in tank.
- Remove stickers on IP and clean with ethanol (some were missed last time).
- Wipe rusty screws on IP LVDTs and surrounding area with ethanol-soaked wipe.
- Check that all in-air cables are labeled.
- Fix broken pico adapter cable?
- If possible, reroute cable to eliminate need for with feedthrough.
- Debug all electronics, especially actuation.
- 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.
- Get ready for full TFs.
Software
- Enter new IP matrices and do safe.snap.
- Get pico drive screens fixed (Miyo-kun)
- Update real-time model to number channels from #0.
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).
- 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.