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Size: 3346
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Size: 2764
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 22: | Line 22: |
| == 2017-09-25 == | == 2017-10-02 == |
| Line 25: | Line 25: |
| * --(Move in-air cabling and feedthroughs and reconnect in-vacuum cables (through Cu O-rings).)-- * --(Fix #1 geophone adapter cable.)-- |
* Tidy up and cover things to prepare for SR2 crane slot work. * Replace BS service port covers. * 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. |
| Line 28: | Line 32: |
| * Debug all electronics, starting with IRM OSEMs. (half done) * --(Unlock IP; use jacks and FRs to center.)-- |
* If possible, reroute cable to eliminate need for with feedthrough. * Debug all electronics, especially actuation. |
| Line 33: | Line 37: |
| * Calibrate all LVDTs (Enzo, Mark). --(BF)--, --(SF)--, --(PI-GAS)--, PI-H1, PI-H2, PI-H3 | |
| Line 34: | Line 39: |
| * LBB stuff (see below). * |
* Set all EQ stops to proper clearance. * Get ready for full TFs. |
| Line 37: | Line 42: |
| === 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 === |
=== 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. * Remove old OL stuff; add link to new OL stuff. * Remove unused screens. * Sort out SVN. |
| Line 58: | Line 55: |
| * Get pico drive screens fixed (Miyo-kun) | |
| Line 71: | Line 67: |
| * 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). |
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
Main Assembly Sequence
- Tidy up and cover things to prepare for SR2 crane slot work.
- Replace BS service port covers.
- 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 all LVDTs (Enzo, Mark). BF, SF, PI-GAS, PI-H1, PI-H2, PI-H3
- Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
- Set all EQ stops to proper clearance.
- 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.
- Remove old OL stuff; add link to new OL stuff.
- Remove unused screens.
- Sort out SVN.
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
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.