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[[#RealBSHang|Preparation for Real BS Hang]] |
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== 2017-08-28 == | == 2017-10-16 == |
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* Crane out SF. * Remove BF cap and retrieve lost hex cable clamp PEEK piece. * Crane in SF. * Install SF-BF rod with hex cable clamp. * Route cables via hex cable clamp up to below SF. * Adjust BF ballast mass for total weight and pitch/roll. * Look for missing screw from SF damper Cu segment in washed screws bag and reinstall. * Calibrate SF LVDT. * Measure bounce frequency of BF/... from SF with BF locked. |
* --(Borrow portable hard drive.)-- * --(Remove sticker residue and permanent marker writing on PI.)-- * --(Fix broken and unreliable connections on IP LVDTs.)-- * --(Reconfigure the stepper motor cables for Miyo-kun.)-- * Wipe any rust from around IP LVDTs. * (If Enzo thinks it necessary and there's time) adjust IP LVDT mechanical offsets to maximize usable range and recalibrate. * --(Add IP LVDT gains and offsets to IP_LVDTINF filter blocks.)-- * Calibrate IP LVDT actuation against IP LVDT sensing. * --(Install damping filters for IP LVDTs.)-- * Adjust gains and debug damping for IM OSEMs and GAS LVDTs. * Modify IP LVDT damping filters to include set point. * Install and debug IP LVDT and geophone diagonalization matrices. * (Time permitting) Try adding mass to IP. * Work with alignment team. * Work with Mirapro on SR LBB and tank installation (Hirata-san, from Wed) * Work with Miyo-kun to get user interface for stepper motors. * Calibrate IP FR actuation against IP LVDT sensing. * SR procurement. * --(Lower LBB by 17.5 mm; suspend and rebalance after removing table KOACH filters.)-- * --(Reroute cable to eliminate need for fifth feedthrough.)-- * Set all EQ stops to TBD clearance. * Measure IP period; adjust ballast mass. * Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs. * TFs. |
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=== In parallel, time permitting === * Rearrange arc weights on PI to allow installation of magic wand. * Check that we have all LBB parts (there was an issue with borrowed lock nuts). * Rearrange magnets on SF damper magnet ring for full three Cu segments. * Find Ni-plated rods for SF damper magnet ring and do fit check. * Find PI-SF rod with 8 mm heads and matching receptacles and do fit check. * Lay more new in-air cabling. * Wipe LLB damper parts with ethanol. * Get Cu O-rings for feedthroughs. * Figure out how to tighten PI yaw return spring. |
=== Etc === * Move stuff out of PR2 area. * Tidy/label parts. * Move safety bars from BS AF area to SR2 area. * (Put up safety bars in SR3 area.) * Close hole in floor above BS AF area. === Software === * --(Enter new IP matrices and do safe.snap.)-- * --(Send stepper driver info to 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. * --(Add support for comments to SUMCON.)-- * Create SUMCON model with values commented. * Derive matrices for IP FRs. === Design === * Finalize redesign of IP yaw adjuster. * Design better F0 FR adjuster. |
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== Real BS Hang Tasks == | == Tasks Not To Forget == |
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* Get pico drive screens fixed (Miyo-kun) * Calibrate PI vertical LVDT. * Set yoke on PI vertical LVDT (if necessary). * Calibrate PI horizontal LVDTs. |
* Figure out how to make PI yaw adjustment reliable. |
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* Get clean bag laundered. | |
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* Lock washers for LBB dampers | |
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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.)-- * Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match. |
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* 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 * --(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 3.5 mm above top of baseplate (or to give ≈0 counts at nominal height).)-- * Adjust yoke on SF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height). * 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.)-- |
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
2017-10-16
Main Assembly Sequence
Borrow portable hard drive.
Remove sticker residue and permanent marker writing on PI.
Fix broken and unreliable connections on IP LVDTs.
Reconfigure the stepper motor cables for Miyo-kun.
- Wipe any rust from around IP LVDTs.
- (If Enzo thinks it necessary and there's time) adjust IP LVDT mechanical offsets to maximize usable range and recalibrate.
Add IP LVDT gains and offsets to IP_LVDTINF filter blocks.
- Calibrate IP LVDT actuation against IP LVDT sensing.
Install damping filters for IP LVDTs.
- Adjust gains and debug damping for IM OSEMs and GAS LVDTs.
- Modify IP LVDT damping filters to include set point.
- Install and debug IP LVDT and geophone diagonalization matrices.
- (Time permitting) Try adding mass to IP.
- Work with alignment team.
- Work with Mirapro on SR LBB and tank installation (Hirata-san, from Wed)
- Work with Miyo-kun to get user interface for stepper motors.
- Calibrate IP FR actuation against IP LVDT sensing.
- SR procurement.
Lower LBB by 17.5 mm; suspend and rebalance after removing table KOACH filters.
Reroute cable to eliminate need for fifth feedthrough.
- Set all EQ stops to TBD clearance.
- Measure IP period; adjust ballast mass.
- Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
- TFs.
Etc
- Move stuff out of PR2 area.
- Tidy/label parts.
- Move safety bars from BS AF area to SR2 area.
- (Put up safety bars in SR3 area.)
- Close hole in floor above BS AF area.
Software
Enter new IP matrices and do safe.snap.
Send stepper driver info to 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.
Add support for comments to SUMCON.
- Create SUMCON model with values commented.
- Derive matrices for IP FRs.
Design
- Finalize redesign of IP yaw adjuster.
- Design better F0 FR adjuster.
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
- Put pointy-tipped screw in RM trolley for BS
- Return/replace borrowed parts:
- Temporary ballast mass (dog clamps) in BF.
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.