Differences between revisions 11 and 12
Revision 11 as of 2019-01-20 15:48:55
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Revision 12 as of 2019-01-20 16:06:50
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 * Install a working set of geophones, e.g., from SR3.  * Fix geophones. '''(Enzo on Wednesday or later.)'''
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 * Secure any keystone trim mass.  * Secure any keystone trim mass. '''(Hirata-san or Fabian on Wednesday of later.)'''
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 * 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.
 * Survey optic height '''(Fabian on Monday) '''and raise suspension on jacks as necessary '''(Enzo, Hirata-san, Terrence and Fabian on Monday)'''.''' '''
 * Reinstall OL LED (original one borrowed for SR2 - probably use new one to be supplied by Simon), probably change collimator, and realign OL. '''(Terrence on Monday and/or Tuesday.)'''
 * Secure any keystone trim mass. '''(Hirata-san or Fabian on Monday.)'''
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 * Survey optic height and raise suspension on jacks as necessary.
 * Remove tape, writing etc on PI and PI items.
 * Secure any keystone trim mass.
 * Survey optic height '''(Fabian on Monday)''' and raise suspension on jacks as necessary. '''(Enzo, Hirata-san, Terrence and Fabian on''' '''Monday and/or Tuesday.)'''
 * Remove tape, writing etc on PI and PI items. '''(Hirata-san on Monday and/or Tuesday.)'''
 * Secure any keystone trim mass. '''(Hirata-san or Fabian on Monday and/or Tuesday.)'''

VIS Type B To-Do List

Archived items are at ../ToDoOld.

Every Week

Coming Weeks

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)

  • Fix geophones. (Enzo on Wednesday or later.)

  • Fix touching issue.

  • Secure any keystone trim mass. (Hirata-san or Fabian on Wednesday of later.)

  • Recenter the OL.

SR3 (priority 2)

  • Survey optic height (Fabian on Monday) and raise suspension on jacks as necessary (Enzo, Hirata-san, Terrence and Fabian on Monday).

  • Reinstall OL LED (original one borrowed for SR2 - probably use new one to be supplied by Simon), probably change collimator, and realign OL. (Terrence on Monday and/or Tuesday.)

  • Secure any keystone trim mass. (Hirata-san or Fabian on Monday.)

SR2

  • Survey optic height (Fabian on Monday) and raise suspension on jacks as necessary. (Enzo, Hirata-san, Terrence and Fabian on Monday and/or Tuesday.)

  • Remove tape, writing etc on PI and PI items. (Hirata-san on Monday and/or Tuesday.)

  • Secure any keystone trim mass. (Hirata-san or Fabian on Monday and/or Tuesday.)

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.

KAGRA/Subgroups/VIS/TypeB/ToDo (last edited 2019-12-18 12:38:30 by fabian.arellano)