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Comment:
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Deletions are marked like this. | Additions are marked like this. |
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== 2017-10-16 == | == ASAP == * '''Remove non-vacuum-compatible ballast from LBB.''' |
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* --(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. * --(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.)-- * --(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. |
* Necessary for phase-I★★★ * --(Modify IP LVDT damping filters to include set point.)-- * --(TFs.)-- * '''''EXCHANGE YAW/VERT FRs at F0''''' * Check IP BIO is working or not. |
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=== 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. |
* Necessary for phase-II★★ * Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553) * Design PI Sensor blending filter. * Re-calibrate F0 GAS LVDT * Tune the LVDT sensitivity * Measure IP period; adjust ballast mass. |
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=== 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.)-- |
* At some point (remotely)★ * Improve OL offloading. * Improve GAS offloading. * Spectral analysis of Oplev. * Design, install angular lock servo using OL. (Almost done for phase-I) * Adjust gains and debug damping for IM OSEMs and GAS LVDTs. (Almost done for phase-I) * Subtract DC level of Geophones. * Spectra analysis of PI sensors (PI LVDTs and Geophones). * Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs. * Set all EQ stops to TBD clearance. * Modify the model for IP coil driver control |
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=== Design === * Finalize redesign of IP yaw adjuster. * Design better F0 FR adjuster. |
=== Documentation and Operation Manual === * Add useful info from Enzo's notebook to BSData. |
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* Move safety bars from BS AF area to SR2 area. * Close hole in floor above BS AF area. * Update circuit diagram. |
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* Design and install GAS drift compensation filters. |
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
ASAP
Remove non-vacuum-compatible ballast from LBB.
Main Assembly Sequence
- Necessary for phase-I★★★
Modify IP LVDT damping filters to include set point.
TFs.
EXCHANGE YAW/VERT FRs at F0
- Check IP BIO is working or not.
- Necessary for phase-II★★
Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553)
- Design PI Sensor blending filter.
- Re-calibrate F0 GAS LVDT
- Tune the LVDT sensitivity
- Measure IP period; adjust ballast mass.
- At some point (remotely)★
- Improve OL offloading.
- Improve GAS offloading.
- Spectral analysis of Oplev.
- Design, install angular lock servo using OL. (Almost done for phase-I)
- Adjust gains and debug damping for IM OSEMs and GAS LVDTs. (Almost done for phase-I)
- Subtract DC level of Geophones.
- Spectra analysis of PI sensors (PI LVDTs and Geophones).
- Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
- Set all EQ stops to TBD clearance.
- Modify the model for IP coil driver control
Documentation and Operation Manual
- Add useful info from Enzo's notebook to BSData.
Tasks Not To Forget
Major Tasks
- Move safety bars from BS AF area to SR2 area.
- Close hole in floor above BS AF area.
- 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.