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Size: 2795
Comment:
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Size: 2785
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 22: | Line 22: |
| == 2017-10-02 == | == 2017-10-30 == |
| Line 25: | Line 25: |
| * --(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 fifth feedthrough. * Debug all electronics, especially actuation. * --(Check IP yaw.)-- * --(Recheck centering of suspension in assembly frame.)-- |
* --(Realign OL.)-- * Cover OL with foil. * Offload IP P&Y offsets to picos. * Diagonalize OL. * Design, install angular lock servo using OL. * Calibrate IP LVDT actuation against IP LVDT sensing. * Adjust gains and debug damping for IM OSEMs and GAS LVDTs. * Modify IP LVDT damping filters to include set point. * Set all EQ stops to TBD clearance. |
| Line 37: | Line 35: |
| * Calibrate all LVDTs (Enzo, Mark). --(BF)--, --(SF)--, --(PI-GAS)--, PI-H1, PI-H2, PI-H3 | |
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| * Set all EQ stops to proper clearance. * Get ready for full TFs. |
* TFs. === Etc === * Move stuff out of PR2 area. * Tidy/label parts. * Move safety bars from BS AF area to SR2 area. * Close hole in floor above BS AF area. |
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| * Enter new IP matrices and do safe.snap. * Get pico drive screens fixed (Miyo-kun) |
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| * Do better interface to IP steppers (make a wrapper for Miyo-kun's driver which includes geometry matrix). | |
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| * Add support for comments to SUMCON. * Create SUMCON model with values commented. * Publish matrices for IP FRs. === Design === * Finalize redesign of IP yaw adjuster. * Design better F0 FR adjuster. * Design LBB ballast mass. |
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| * Wipe any rust from around IP LVDTs. * Update circuit diagram. * (Time permitting) Try adding mass to IP. |
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| Line 59: | Line 71: |
| * Get clean bag laundered. | |
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| * Lock washers for LBB dampers | |
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| * Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match. |
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
2017-10-30
Main Assembly Sequence
Realign OL.
- Cover OL with foil.
Offload IP P&Y offsets to picos.
- Diagonalize OL.
- Design, install angular lock servo using OL.
- Calibrate IP LVDT actuation against IP LVDT sensing.
- Adjust gains and debug damping for IM OSEMs and GAS LVDTs.
- Modify IP LVDT damping filters to include set point.
- 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.
- Close hole in floor above BS AF area.
Software
- Update real-time model to number channels from #0.
- Remove old OL stuff; add link to new OL stuff.
- Do better interface to IP steppers (make a wrapper for Miyo-kun's driver which includes geometry matrix).
- Remove unused screens.
- Sort out SVN.
- Add support for comments to SUMCON.
- Create SUMCON model with values commented.
- Publish matrices for IP FRs.
Design
- Finalize redesign of IP yaw adjuster.
- Design better F0 FR adjuster.
- Design LBB ballast mass.
Tasks Not To Forget
Major Tasks
- Wipe any rust from around IP LVDTs.
- Update circuit diagram.
- (Time permitting) Try adding mass to IP.
- 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.