Differences between revisions 107 and 108
Revision 107 as of 2018-09-30 20:28:29
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Editor: MarkBarton
Revision 108 as of 2018-09-30 20:28:56
Size: 3265
Editor: MarkBarton
Deletions are marked like this. Additions are marked like this.
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=== 2018-09-25 === === 2018-10-01 ===

VIS Type B SR Near Term To-Do List

Archived To-Do Items

Every Week

Coming Weeks

Preparation for SR Installation

Every Week


  • Vacuum and roll floor.
  • Wipe ladders, assembly frame.
  • Tidy tools, parts.
  • Get stuff from ../WishList

Coming Weeks



  • Take SRM LVDT driver out of rack for Lucia.


  • Turn off KOACH filters in tank and see if BF keystone rises.
  • Install shelves in small rack, and put sat amps, drivers, etc inside.
  • Run power and network to pico drivers and steppers.
  • Test picos and steppers.
  • Adjust pitch/roll of IM with picos.
  • Offload BF GAS LVDT offset with FR stepper.
  • Add arc weights and geophones. (Might have to reserve one geophone for Fujii-Fun - check.)
  • Cable geophones. (Might have to reserve one cable for Fujii-kun - check.)
  • Unlock and center IP.
  • More TFs.


  • Add TM OSEM cables.
  • Set TM pitch and tighten clamps.
  • Set RM pitch and tighten clamps.
  • Remove winch system and restore items removed from top of IM.
  • Suspend and weigh IM/... section.
  • Add BF crossbars to SS.
  • Build up SS to BF level.
  • Suspend IM/... section and adjust ballast/trim masses.
  • Install feedthroughs on AF (3 available; need to get a 4th).
  • Arrange power to SRM rack and get it running.
  • Check the IRIG-B 9999xx fix has been applied (klog http://klog.icrr.u-tokyo.ac.jp/osl/index.php?r=6031).


  • Don't even think about doing anything with SR3.

SR Prep Tasks - To Be Scheduled


  • Add SR3 LBB ballast mass.
  • Install SR3 LEN OL.
  • Rebuild PI #2 F0 for SRM.
  • Retrieve BNC-Lemo cable from Nakano-kun.
  • 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.
  • Install, cable SR3 PI yaw stepper.
  • Correct flipped connections in SRM PI LVDTs.
  • Grab and configure a picomotor driver as SR2_BF
  • Check SR2, SR3 TM coil gains for magnet polarity compensation.
  • Rebuild filter in PI #2 for SRM.
  • Clean/Replace yoke in PI #2 for SRM.
  • Install clamps on PI #2 for SRM.
  • Install LBB blade units on PI #2 for SRM.
  • Install geophone plates on PI #2 for SRM.
  • 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).
  • Create software stepper drivers for SR3 and SRM and link to them from STEP_MASTER.adl screen.
  • Make three in-air stepper splitter cables for SR2, SR3 and SRM. [done?]
  • (Continue to) soak the sapphire prisms off the dummy BS for reuse on the SRM metal mass.
  • Set up SR2 Guardian.
  • Install damping filters for SR2.
  • Review DAC channel requests.
  • Set up SR2 Guardian.
  • Install damping filters for SR2.
  • Split SRx real-time models?


See ../WishList .

KAGRA/Subgroups/VIS/TypeB/ToDoSR (last edited 2019-01-04 15:25:56 by MarkBarton)