Differences between revisions 181 and 207 (spanning 26 versions)
⇤ ← Revision 181 as of 2017-08-26 11:55:29 →
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Editor: MarkBarton
Comment:
← Revision 207 as of 2017-11-24 11:48:46 → ⇥
Size: 1396
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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At Kamioka (Mark, Ohishi-san, Enzo, Yoshioka-kun):
 * We installed the cut-down ballast mass under the IM and tweaked the IM height and balance.
 * We checked the range of the BF FR.
 * We adjusted the BF yoke by 2.5 mm to make it give ≈0 output for nominal height.
 * We found a good gain setting for the LVDT driver and calibrated the BF LVDT.
 * We set up the optical sensors facing the RM.
 * We assembled the IRM (with OSEMs) around the IM and got it mostly adjusted.
 * We changed the k1visbs model to restore the as-designed mapping of OSEMs to DAQ channels.
 * We confirmed that the BF LVDT actuation coil and the TM OSEM coils were working.
 * We connected up the IRM OSEMs (with the new Type 5-1.7 cables) but found there was an electrical issue: all the OSEMs are reading back the same constant value, around 1115.
 * We left the suspension in a state suitable for TFs from BF GAS actuation to sensing (in vertical) and from RM OSEM actuation to the optical sensors (in horizontal) over the weekend.
At Mitaka (Hirata-san):
 * He got quotes for the SR assembly frame and did cost-reduction negotiations with Aso-san and Mirapro.
got quotes for assembly frame.
 * He did 2D drawings and a parts list for the divided LBB dampers.
 * He contacted a company about SDC.
 * He made a 3D model and drawings for the SR wire clamps.
Line 25: Line 8:
==== Plan for week of 8/28 ====
Kamioka: Mark (except Tue), Ohishi-san, Fabian (except Tue), Enzo (except Tue), Hirata-san, Yoshioka-kun (Fri), Kozu-kun (Thu, Fri).
 * Fix/adjust IRM OSEMs.
 * Add BF cap; cable and test BF-1 and BF-2 picos.
 * Lift and weigh BF/IRM/IM/RM/BS; adjust ballast mass.
 * Crane in SF.
 * Suspend BF/IRM/IM/RM/BS.		  * Mark worked on SR2 planning.
 * Mark thought through what would be required to swap an optic (e.g., SRM) in situ (JGW-T1707436).
 * Hirata-san tried removing disks from IM flags (so we could reuse them in flag bases and make a complete set for SR2) but only got 1 of 4 out.
 * Hirata-san ordered more disks for IM flags.
 * Hirata-san asked for quotes on SF LBB blades.
 * Hirata-san got a reduced quote for the LBB damper rings.
 * Hirata-san received and cleaned suspension wires for the SR.
 * Fabian worked on the SR mass budget.
 * Fabian worked out the COM of the SR2 optic, and Mark used it to derive the proper prism positions.
 * Enzo and Kozu-kun worked on control filter design and installation.
Line 33: Line 19:
==== Plan for week of 9/4 ====
 * Install SF cap; route cables.
 * Lift and weigh SF/BF/IRM/IM/RM/BS.
 * Adjust SF ballast.		 ==== Plan for week of 11/27 ====
 * Fabian at commissioning workshop
 * Hirata-san at Kamioka Tue-Fri to work with Mirapro on SRM LBB installation.
 * All others (Mark, Enzo, Shoda-san, Kozu-kun) at Kamioka to start SR2 assembly.
  * Mark from Mon lunchtime.
  * Kozu-kun from Mon lunchtime through Wed.
  * Mirror gluing.
  * SR2 rack setup.
Line 38: Line 28:
==== Vacation Info ====
Mark: TBD Mid-Oct		 ==== Plan for week of 12/4 ====
 * All at Kamioka
  * IM assembly and pico test.
  * Assembly frame alignment and optical table centering.
  * OL setup.
  

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

  • Mark worked on SR2 planning.
  • Mark thought through what would be required to swap an optic (e.g., SRM) in situ (JGW-T1707436).
  • Hirata-san tried removing disks from IM flags (so we could reuse them in flag bases and make a complete set for SR2) but only got 1 of 4 out.
  • Hirata-san ordered more disks for IM flags.
  • Hirata-san asked for quotes on SF LBB blades.
  • Hirata-san got a reduced quote for the LBB damper rings.
  • Hirata-san received and cleaned suspension wires for the SR.
  • Fabian worked on the SR mass budget.
  • Fabian worked out the COM of the SR2 optic, and Mark used it to derive the proper prism positions.
  • Enzo and Kozu-kun worked on control filter design and installation.

Plan for week of 11/27

  • Fabian at commissioning workshop
  • Hirata-san at Kamioka Tue-Fri to work with Mirapro on SRM LBB installation.
  • All others (Mark, Enzo, Shoda-san, Kozu-kun) at Kamioka to start SR2 assembly.
    • Mark from Mon lunchtime.
    • Kozu-kun from Mon lunchtime through Wed.
    • Mirror gluing.
    • SR2 rack setup.

Plan for week of 12/4

  • All at Kamioka
    • IM assembly and pico test.
    • Assembly frame alignment and optical table centering.
    • OL setup.

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-10-28 10:02:46 by fabian.arellano)