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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]] |
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| [[../BSTestHangIssues|Issues to fix after BS Test Hang]] | [[../ToDoSR|SR To-Do Items]] [[#EveryWeek |Every Week]] [[#ComingWeeks |Coming Weeks]] <<Anchor(EveryWeek)>> |
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| * Get stuff from [[../WishList]] | |
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| == 2017-05-29 == | == December 2018 vent == * Look for cracks in F0 blades. * Install new yaw F0 stepper mechanism (if available). * Install new double-sided F0 fishing rod (have all parts except blades). * Add more mass to IP to get a lower frequency. * Service geophones (one has high noise, one has DC offset). * Re-calibrate F0 GAS LVDT. * Confirm the positions of the IP LVDTs and Actuators. * Tune LBB (adjust table height, damper height) - DON'T BOTHER (unless there's an excuse to open the lower half of the tank). |
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| === Facilities === | <<Anchor(ComingWeeks)>> |
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| === Design/Purchasing === * Order longer threaded rods for arc weights on PI. * Get more cable ties. * Get another D-Sub breakout. |
== ASAP == * --(Get picomotor drivers back on line.)-- * --(Debug BS BIO connections, especially PI IP.)-- |
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| === Main Assembly === * Reinstall blades in LBB blade units. * Do load test on LBB blade units. * Try rearranging arc weights to make room for magic wand. * |
=== Main Assembly Sequence === * Necessary for phase-I★★★ * --(Modify IP LVDT damping filters to include set point.)-- * --(TFs.)-- * '''''EXCHANGE YAW/VERT FRs at F0''''' |
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| === Electronics === * Route BF/... cabling up past SF to PI. * Route SF cabling up to PI. * Add Type 3 extensions to SF/... cables. * Move vacuum flanges to positions on assembly frame more convenient for next stage (accessible from second floor, one on each corner of frame). * Move in-air cabling to match flange positions. * Cable and test PI vertical LVDT. * Calibrate PI vertical LVDT. * Set yoke on PI vertical LVDT (if necessary). * Cable and test PI yaw stepper. * Cable and test PI vertical stepper. * Cable and test PI horizontal steppers. * Cable and test PI horizontal LVDTs. * Calibrate PI horizontal LVDTs. |
* Necessary for phase-II★★ * Debug BS geophones. * Flip circuit boards in BS geophones to make them the same as SRx. * 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. * Tune the LVDT sensitivity * Measure IP period; adjust ballast mass. |
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| == Real-time and SUMCON models == * Check PI section of k1visbs model. |
* 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. <<Anchor(RealBSHang)>> == Tasks Not To Forget == === Major Tasks === * --(Move safety bars from BS AF area to SR2 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 temporary ballast mass (dog clamps).)-- * Characterize replacement F0. * --(Wipe/clean arc weights that were rained on.)-- <<Anchor(elec)>> ==== Electrical ==== * Update BS Circuit diagram, D1503600 * --(Note removal of LED/PD on TM OSEMs.)-- * Organize stepper reset system and watchdog BIO. * Include information on assignment of channels to feedthrough positions. * Reflect gender-changers and non-flipping feedthrough adapters. * Reflect actual cable lengths. * Include LVDT pin size (1 mm). * Include Stepper pin size (1.6 mm). * --(Undo renumbering of IP items.)-- * --(Page 10: "DIO Card # 0" should be "DIO Card # 1")-- * --(Include OutConfigBoards on OL page (Sheet 18).)-- * --(Update HPCD section to reflect:)-- * --(All three GAS channels are on HPCD #1 and DIO Card #2, CNB cables, Sheet 13.)-- * --(Three IP channels are on HPCD #0 and DIO Card #2, CNA cables, Sheet 15.)-- ==== Real-time and SUMCON models ==== * Create SUMCON models for full BS and major installation milestones. * Create controls design description (cf [[https://dcc.ligo.org/LIGO-T1100378/public|LIGO-T1100378]]). |
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| * Design and install GAS drift compensation filters. * 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
December 2018 vent
- Look for cracks in F0 blades.
- Install new yaw F0 stepper mechanism (if available).
- Install new double-sided F0 fishing rod (have all parts except blades).
- Add more mass to IP to get a lower frequency.
- Service geophones (one has high noise, one has DC offset).
- Re-calibrate F0 GAS LVDT.
- Confirm the positions of the IP LVDTs and Actuators.
- Tune LBB (adjust table height, damper height) - DON'T BOTHER (unless there's an excuse to open the lower half of the tank).
ASAP
Get picomotor drivers back on line.
Debug BS BIO connections, especially PI IP.
Main Assembly Sequence
- Necessary for phase-I★★★
Modify IP LVDT damping filters to include set point.
TFs.
EXCHANGE YAW/VERT FRs at F0
- Necessary for phase-II★★
- Debug BS geophones.
- Flip circuit boards in BS geophones to make them the same as SRx.
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.
- 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.
- 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 temporary ballast mass (dog clamps).
- Characterize replacement F0.
Wipe/clean arc weights that were rained on.
Electrical
- Update BS Circuit diagram, D1503600
Note removal of LED/PD on TM OSEMs.
- Organize stepper reset system and watchdog BIO.
- Include information on assignment of channels to feedthrough positions.
- Reflect gender-changers and non-flipping feedthrough adapters.
- Reflect actual cable lengths.
- Include LVDT pin size (1 mm).
- Include Stepper pin size (1.6 mm).
Undo renumbering of IP items.
Page 10: "DIO Card # 0" should be "DIO Card # 1"
Include OutConfigBoards on OL page (Sheet 18).
Update HPCD section to reflect:
All three GAS channels are on HPCD #1 and DIO Card #2, CNB cables, Sheet 13.
Three IP channels are on HPCD #0 and DIO Card #2, CNA cables, Sheet 15.
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.