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Archived items are at ../ToDoOld. | |
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Archived items are at [[../ToDoOld]]. | [[#EveryWeek|Every Week]] |
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[[#EveryWeek |Every Week]] [[#ComingWeeks |Coming Weeks]] |
[[#ComingWeeks|Coming Weeks]] |
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* Get stuff from [[../WishList]] |
* Get stuff from ../WishList |
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=== 2019-01-07,14,21 === | === 2019-01-21 === ==== Etc ==== * Work with Akutsu-san to get additional two camera viewports (for SR2 and SRM). * Open all dead geophones, replace preamps, test, seal, retest. * Get rid of all cable reels. |
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* --(Check that the suspension is floating. (It wasn't.))-- * --(Re-center OL and log value to capture yaw position. (We didn't bother because the chain wasn't in a good enough condition.))-- * --(Remove bolts (or wait for Mirapro to do).)-- * --(Remove tank lid.)-- * --(Look for cracks in F0 blades.)-- * --(Install new double-sided F0 fishing rod (need to get blades) and (if necessary) auxiliary !CuBe spring.)-- * Test new F0 FR. * Center new F0 FR (mid-range height is 75 mm). * --(Adjust amount of mass on F0 keystone to get correct height)--, and secure in place. * --(Check that current defective yaw adjuster is at least locating the suspension in yaw.)-- * Remove and service or swap out geophones (one has high noise, one has DC offset, all have flipped pinouts). Could use new geophones originally intended for SRM to save time. * Swap in new cables for geophones and other items. * Add longer studs for arc weights. * Replace geophones and add more arc weights to IP to get a lower frequency. * Re-calibrate the F0 GAS LVDT, measuring down from the ring (nominal 16.5 mm) rather than up from the milled recess (nominal 154.5mm). * --(Confirm the positions of the IP LVDTs and Actuators)--, and update T1707205 if necessary. * Recenter the OL. |
* Install a working set of geophones, e.g., from SR3. * --(Fix touching issue.)-- * Secure any keystone trim mass. * --(Recenter the OL.)-- ==== SR3 (priority 2) ==== * Survey optic height and raise suspension on jacks as necessary. * Reinstall OL LED (original one borrowed for SR2 - probably use new one to be supplied by Simon), probably change collimator, and realign OL. * Secure any keystone trim mass. ==== SR2 ==== * Survey optic height and raise suspension on jacks as necessary. * Remove tape, writing etc on PI and PI items. * Secure any keystone trim mass. |
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* Test new yaw mechanism. * Adjust F0 keystone mass to give desired height and secure weights in place. * Measure height of RM/TM relative to SS and height of SS relative to tank or Telada-san's reference. Raise suspension on jacks if necessary. * Borrow LED from SR2 and check/adjust optic pitch; return LED to SR2. * Install Enomoto-kun's beam target plate (if available). * Seal geophones. |
* Raise suspension 3.5 mm on jacks. * Check/improve payload alignment and IM OSEMs. Recheck optic pitch with OL as needed.\ * Adjust F0 keystone trim to give desired height and secure weights in place. |
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* Install OL viewport (already available). * Install camera viewport (when available). (At a minimum, in the short term, remove flange cover temporarily and check that there is a good view of the HR surface.) |
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* Wipe inside tank with Vectra-Alpha wipes and IPA. * Set up TILT OL. === 2019-01-28 === ==== BS ==== ==== SRM ==== * Install camera viewport. (Mirapro will be available 1/28) * Setup LEN OL. |
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* Set up OL (needs various parts). | * Install Enomoto-kun's beam target plate (when available). |
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* Install/test new yaw mechanism. * Adjust height. * Realign OL. |
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* Measure height of RM/TM relative to SS and height of SS relative to tank or Telada-san's reference. Raise suspension on jacks if necessary. | |
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* Install camera. * Run cables for camera. |
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* Adjust height. * Remove tape, writing etc on PI and PI items. |
* Add camera viewport (when available). |
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* Add ballast mass to LBB. * Measure height of RM/TM relative to SS and height of SS relative to tank or Telada-san's reference. Raise suspension on jacks if necessary. * Add camera viewport (when available). |
* Add additional mass to LBB to have it at the desired height * Install camera. * Run cables for camera. |
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* Tune BS LBB (adjust table height, damper height) - DON'T BOTHER (unless there's an excuse to open the lower half of the tank). | * Tune BS 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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* Check SR2, SR3 TM coil gains for magnet polarity compensation. | * Check SR2, SR3 TM coil gains for magnet polarity compensation. |
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VIS Type B To-Do List
Archived items are at ../ToDoOld.
Every Week
Facilities
- Vacuum and roll floor.
- Wipe ladders.
- Tidy tools, parts.
Get stuff from ../WishList
2019-01-21
Etc
- Work with Akutsu-san to get additional two camera viewports (for SR2 and SRM).
- Open all dead geophones, replace preamps, test, seal, retest.
- Get rid of all cable reels.
BS (top priority)
- Install a working set of geophones, e.g., from SR3.
Fix touching issue.
- Secure any keystone trim mass.
Recenter the OL.
SR3 (priority 2)
- Survey optic height and raise suspension on jacks as necessary.
- Reinstall OL LED (original one borrowed for SR2 - probably use new one to be supplied by Simon), probably change collimator, and realign OL.
- Secure any keystone trim mass.
SR2
- Survey optic height and raise suspension on jacks as necessary.
- Remove tape, writing etc on PI and PI items.
- Secure any keystone trim mass.
SRM
- Raise suspension 3.5 mm on jacks.
- Check/improve payload alignment and IM OSEMs. Recheck optic pitch with OL as needed.\
- Adjust F0 keystone trim to give desired height and secure weights in place.
- Install geophones and arc weights.
- Center and tune IP.
- Hook LBB and add just enough ballast to have it bouncing.
- Wipe inside tank with Vectra-Alpha wipes and IPA.
- Set up TILT OL.
2019-01-28
BS
SRM
- Install camera viewport. (Mirapro will be available 1/28)
- Setup LEN OL.
- Add additional ballast to LBB to set desired height (only if someone will be putting stuff on it).
- Install Enomoto-kun's beam target plate (when available).
SR3
- Install camera viewport (already available).
- Add additional ballast to LBB to set desired height (only if someone will be putting stuff on it).
- Install camera.
- Run cables for camera.
SR2
- Add camera viewport (when available).
- Add new feedthrough to lower part of tank (with Izumi-san-tachi)?
- Install cable for MIF pico on LBB (with Izumi-san-tachi)?
- Add additional mass to LBB to have it at the desired height
- Install camera.
- Run cables for camera.
Tasks To Be Scheduled
BS
- Tune BS LBB (adjust table height, damper height) - DON'T BOTHER (unless there's an excuse to open the lower half of the tank).
- Replace BS F0 thrust bearing and yaw adjuster - BIG JOB, DON'T BOTHER (unless lack of yaw adjustment becomes a major problem).
SR2
SR3
SRM
- Find two geophone cables used by Okutomi-san. (I looked in the second floor EXV room but didn't find them - Mark.)
- Find one geophone cable ordered for SRM but missing.
- Rearrange miswired geophone cable.
- Rebuild defective geophone cable.
- Put FC on SRM-W and install it in its holder with 1.4 mm shims ready for possible use.
Tunnel
- Get at least one BIO Converter chassis fully connected (CONTEC BIO card, WD and stepper motor chassis) for implementation and test of stepper motor reset function.
- Check SR2, SR3 TM coil gains for magnet polarity compensation.
- Replace chipped magnets (12x12x12 mm) in SR3 IP, H1 and H2.
Mitaka or remotely
- Write generic Type B Guardian; make BS and SR3 inherit from it; make analog WD optional for now (all suspensions will get them eventually).
- (Continue to) soak the sapphire prisms off the dummy BS for reuse on the SRM metal mass.
- Install damping filters for SR2.
- Review DAC channel requests.
- Split SRx real-time models?
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.