Differences between revisions 127 and 129 (spanning 2 versions)
Revision 127 as of 2017-09-06 11:50:53
Size: 3671
Editor: MarkBarton
Comment:
Revision 129 as of 2017-09-11 15:54:08
Size: 2767
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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== 2017-09-04 == == 2017-09-11 ==
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 * --(Crane out SF.)--
 * --(Raise BF cap and retrieve lost hex cable clamp PEEK piece.)--
 * --(Crane in SF.)--
 * --(Install SF-BF rod with hex cable clamp.)--
 * --(Route cables via hex cable clamp up to below SF.)--
 * --(Adjust BF ballast mass for total weight and pitch/roll.)--
 * --(Look for missing screw from SF damper Cu segment in washed screws bag and reinstall.)--
 * --(Adjust yoke on SF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height).)--
 * Calibrate SF LVDT.
 * Install SF main ballast mass.
 * --(Cable and test SF fishing rod stepper.)--
 * Add SF cap.
 * Lift and weigh SF/... section.
 
 * Debug BF LVDT actuation.
 * Debug other actuation.
 * Remove F-0 rod and reinstall with hex cable clamp.
 * Route cables up past hex cable clamps.
 * Adjust SF trim mass for pitch/roll/vertical.
 *
Line 40: Line 32:
 * --(Rearrange arc weights on PI to allow installation of magic wand.)--
 * Install magic wand on PI.
 * Fix links to ADC_MONITOR screens.
 * Check that all Take/Restore Safe.snap buttons work.
Line 43: Line 35:
 * Rearrange magnets on SF damper magnet ring for full three Cu segments.
 * --(Find Ni-plated rods for SF damper magnet ring and do fit check.)--
 * --(Find PI-SF rod with 8 mm heads and matching receptacles and do fit check.)--
 * Lay more new in-air cabling.
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 * Get Cu O-rings for feedthroughs.
Line 50: Line 37:
 * --(Recalibrate remachined LBB springs and choose best three.)--
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 * Repaired LBB half ring is returned: 9/11 (Mon, lunchtime)
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 * Calibrate all LVDTs (Enzo, Mark). --(BF)--, SF, PI-GAS, PI-H1, PI-H2, PI-H3  * Calibrate all LVDTs (Enzo, Mark). --(BF)--, --(SF)--, PI-GAS, PI-H1, PI-H2, PI-H3

VIS Type B BS Near Term To-Do List

Archived BS To-Do Items

SR To-Do Items

Every Week

Coming Weeks

Every Week

Facilities

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

2017-09-11

Main Assembly Sequence

  • Debug BF LVDT actuation.
  • Debug other actuation.
  • Remove F-0 rod and reinstall with hex cable clamp.
  • Route cables up past hex cable clamps.
  • Adjust SF trim mass for pitch/roll/vertical.

In parallel, time permitting

  • Fix links to ADC_MONITOR screens.
  • Check that all Take/Restore Safe.snap buttons work.
  • Check that we still have all LBB parts (there was an issue with borrowed lock nuts).
  • Wipe LLB damper parts with ethanol.
  • Figure out how to tighten PI yaw return spring.

Dates

  • BUMAX countersunk screws for LBB Cu
  • SDC screws for LBB half rings: 9/15 (Fri)
  • LBB Cu segments: 9/19-20

Tasks Not To Forget

Major Tasks

  • 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).
  • Get pico drive screens fixed (Miyo-kun)
  • Calibrate PI vertical LVDT.
  • Set yoke on PI vertical LVDT (if necessary).
  • Calibrate PI horizontal LVDTs.

Minor Tasks

Mechanical

  • Get clean bag laundered.
  • Put pointy-tipped screw in RM trolley for BS
  • Return/replace borrowed parts:
    • Lock washers for LBB dampers
    • Temporary ballast mass (dog clamps) in BF.
  • Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match.

Electrical

  • Decide final in-vacuum and in-air cable routing (Enzo).
  • Calibrate all LVDTs (Enzo, Mark). BF, SF, PI-GAS, PI-H1, PI-H2, PI-H3

  • Adjust yoke on PI to put top of secondary at TBD mm above top of baseplate (or to give ≈0 counts at nominal height).

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.
  • Design and install GAS drift compensation filters.
  • Create a proper DAC Monitor MEDM screen.

  • Improve ADC Monitor MEDM screen.

KAGRA/Subgroups/VIS/TypeB/ToDoBS (last edited 2019-01-04 15:21:23 by MarkBarton)