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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]] [[../ToDoSR|SR To-Do Items]] |
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[[#RealBSHang|Preparation for Real BS Hang]] [[#SRPrepTasks|Preparation for SR Installation]] |
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== Coming Weeks 2017-07-10 == === Facilities === |
== 2017-09-11 == |
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== BS Prism/Flag gluing == * Clean magnet jigs, prisms (Hirata). * Assemble (with glue) magnet jigs. (Mark) * Glue flags/prisms. |
=== Main Assembly Sequence === * Debug BF LVDT actuation. * --(Debug other actuation.)-- * --(Remove F-0 rod and reinstall with hex cable clamp.)-- * --(Route cables up past hex cable clamps.)-- * --(Adjust SF trim mass for pitch/roll/vertical.)-- * --(Route all SF/... cables through to the flange and test.)-- * --(Cable all PI items through to the flange.)-- * --(Disconnect the SS from the AF.)-- * --(Roughly level the PI so as to make the SS vertical.)-- * --(Unlock the IP and adjust the level of the PI and the horizontal FRs to center the IP.)-- * Test all PI items: * Yaw stepper. * F0 LVDT sensing * F0 LVDT actuation * --(Horizontal steppers)-- * Horizontal LVDT sensing * Horizontal LVDT actuation * --(Geophones)-- (except one cable broken: #1) * Lock the F0 and SF keystones and measure the resonance frequency of the BF GAS. * --(Lock the F0 and BF keystones and measure the resonance frequency of the SF GAS.)-- 425 mHz * Lock the SF and BF keystones and measure the resonance frequency of the F0 GAS. |
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=== Design/Documentation/Planning === * Organize new OL for setting BS pitch. * Solve magic wand problem. * Try rearranging arc weights to make room for magic wand (3D CAD or actual weights; Fabian or Hirata-san). * If needed based on previous, order longer threaded rods for arc weights on PI (Hirata-san). * Alternatively, have magic wand cut down (Hirata-san). * Final ballast mass design for BF and SF. * Do revised drawings (Hirata-san). * Decide final numbers. * Get quote. * Place order. * Final ballast mass for IM. * Final design (Fabian). * Drawings (Hirata-san). * Get quotes (Hirata-san) * Place order (Hirata-san). * Do version of 3D CAD with final-hang arrangement of suspension and LBB damper stuff (Hirata-san). * Finish assembly drawing for LBB and LBB damper ring and post on JGWDoc (Hirata-san). * LBB ballast mass. * Research real payload. * Measure total load capacity (see Main Assembly section). * Do improved mass budget. === Electronics === * Document LVDT driver rebuild and other changes. |
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=== Main Assembly === * Experiment with rearranging arc weights to accommodate magic wand. * Remove arc weights; load onto LBB; measure total load capacity. * Unload arc weights and store. * Dismantle LBB and rings. * Remove screw feet. * Replace blocks. * Unhook. * Reinstall spacers and clamps on LBB damper rings. * Unhook rods supporting LBB intermediate ring. |
=== In parallel, time permitting === * --(Fix links to ADC_MONITOR screens.)-- * --(Check that all Take/Restore Safe.snap buttons work.)-- * --(Check that we still have all LBB parts (there was an issue with borrowed lock nuts).)-- * --(Wipe LLB damper parts with ethanol.)-- * Figure out how to tighten PI yaw return spring. * --(Install LBB Cu damper ring in tank (less Cu for now).)-- * Fix #1 geophone adapter cable. * Fix broken pico adapter cable == 2017-09-11 == === Main Assembly Sequence === == Dates == * BUMAX countersunk screws for LBB Cu (by 9/20) * SDC screws for LBB half rings: 9/15 (Fri) (have Ag-coated as backup) * LBB Cu segments: 9/19-20 |
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== Real BS Hang Tasks == | == Tasks Not To Forget == |
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* 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). |
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* Final ballast mass production for BF and SF (Hirata-san). (have quotes) * Design of receptacles for rods with 8 mm heads. * Possible rebuild of BF and/or SF * Set up build/test stand for filters. * Get filter test weights. * Find spare BF blade(s). * Reclean stuff: * PI (remove Kapton tape etc, etc). * LLB damper stuff, especially Cu segments. |
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* Unlock BF keystone and try running BF fishing rod to fix sag problem. | |
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* Swap out temporary ballast mass in BF, SF. | |
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* Wide-mouth OSEMs from RM to Akutsu-san * Adjust height of crossbars below BF. * If possible, fix galled pole in BF level of EQ stop. |
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* Check inside SF for lost ruler. * Tighten PI yaw return spring. * Get Cu O-rings for feedthroughs. |
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* Calibrate all LVDTs (Enzo, Mark). * Remove cling wrap in BF and install vacuum-compatible heat shrink. * Remove cling wrap on connections for PI vertical stepper and install vacuum-compatible heat shrink (needs wider diameter heat shrink or smaller pins). * Rewire PI horizontal steppers with vacuum-compatible cable. * Adjust yoke on BF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height). |
* 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). |
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* Create a proper DAC Monitor MEDM screen. * Improve ADC Monitor MEDM screen. <<Anchor(SRPrepTasks)>> == SR Prep Tasks == === Design/Purchasing === * Do rough mass budget for SR2/SR3/SRM. * Design SR assembly frame. * Design final SF ballast masses (Fabian). |
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
2017-09-11
Main Assembly Sequence
- Debug BF LVDT actuation.
Debug other actuation.
Remove F-0 rod and reinstall with hex cable clamp.
Route cables up past hex cable clamps.
Adjust SF trim mass for pitch/roll/vertical.
Route all SF/... cables through to the flange and test.
Cable all PI items through to the flange.
Disconnect the SS from the AF.
Roughly level the PI so as to make the SS vertical.
Unlock the IP and adjust the level of the PI and the horizontal FRs to center the IP.
- Test all PI items:
- Yaw stepper.
- F0 LVDT sensing
- F0 LVDT actuation
Horizontal steppers
- Horizontal LVDT sensing
- Horizontal LVDT actuation
Geophones (except one cable broken: #1)
- Lock the F0 and SF keystones and measure the resonance frequency of the BF GAS.
Lock the F0 and BF keystones and measure the resonance frequency of the SF GAS. 425 mHz
- Lock the SF and BF keystones and measure the resonance frequency of the F0 GAS.
In parallel, time permitting
Fix links to ADC_MONITOR screens.
Check that all Take/Restore Safe.snap buttons work.
Check that we still have all LBB parts (there was an issue with borrowed lock nuts).
Wipe LLB damper parts with ethanol.
- Figure out how to tighten PI yaw return spring.
Install LBB Cu damper ring in tank (less Cu for now).
- Fix #1 geophone adapter cable.
- Fix broken pico adapter cable
2017-09-11
Main Assembly Sequence
Dates
- BUMAX countersunk screws for LBB Cu (by 9/20)
- SDC screws for LBB half rings: 9/15 (Fri) (have Ag-coated as backup)
- LBB Cu segments: 9/19-20
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)
- Calibrate PI vertical LVDT.
- Set yoke on PI vertical LVDT (if necessary).
- Calibrate PI horizontal LVDTs.
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.