Differences between revisions 103 and 104
Revision 103 as of 2018-09-10 04:33:41
Size: 3438
Editor: MarkBarton
Revision 104 as of 2018-09-10 08:32:04
Size: 3347
Editor: MarkBarton
Deletions are marked like this. Additions are marked like this.
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 * --(Calibrate last six IM OSEMs.)--
 * --(Install geophone plates on PI #1 for SR2.)--

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



  • Bring BS, SR2, SR3 racks back up.
  • Update electronics items lists to reflect removed ADC stuff.


  • Cable PI items
    • Geophones
  • Finish in-air cabling (sort out and relabel rack and feedthrough ends of any repurposed cables).
  • Do basic go/no-go test of electronic items.
    • TM OSEM actuation.
    • IM OSEM actuation.
    • BF Picos
    • F0 Stepper.
    • SF Stepper.
    • BF Stepper.
    • IP Steppers.
    • IP LVDTs.
    • Geophones.
  • Check SF keystone height and offload with FR as necessary.
  • Adjust ballast/trim mass of SF, with reserve for yaw stepper.
  • Set SF damper magnet ring height.
  • Check/tweak optic pitch.
  • 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)