Differences between revisions 214 and 217 (spanning 3 versions)
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==== Past week report ====
 * Mark created screens and a macro.txt file for the SR2 and linked to them from the VIS screen.
 * Enzo and Mark did a new overview screen for the BS.
 * Enzo added DIO cards to the rack and connected them to the coil drivers.
 * Fabian and Kozu-kun finished assembling the IM and tested the picos over their full range.
 * Mark and Hirata-san configured and aligned the assembly frame and optical table and craned in the IM ring.
 * Hirata-san noticed some oxidization on several of the L-brackets that will hold the IM horizontally, and we should get them cleaned or machined, but we can probably continue with hanging the system in the meantime.		 ==== Report for week of 1/15 ====
 * We set up the QPD for the OL, initialized the OL and TM sections of the RTM, and did TFs from the TM OSEMs to the OL.
 * Initially we had no coherence, but we debugged issues with the watchdog, LPCD, and DAC board and then got good TFs.
 * We lifted the IM/RM/SR with the load gauge adapter and checked the weight, which was close to the mass budget.
 * We installed the section of the AF above the IM, and the BF cross bars and jacks, and craned in the BF.
 * We installed the BF-IRM rods, IRM, BF-IM rod, flying saucer and the cable clamps on the bottom of the BF.
 * We hooked the IM section, but found it was heavy by several hundred grams. We also noticed the BF keystone had a noticeable tilt of about 1.2 mm (high on the +X side).
 * We removed 738 g of trim mass and found that load rose and sat about 2 mm high. So the discrepancy is of order 500-600 g.
 * Shoda-san, Enzo and Kozu-kun made and characterized a batch of OSEMs.
 * Hirata-san finished drawings for the improved BS PI yaw/vertical adjustment, placed orders for damping ring receptacles and other items, and prepared the second SR BF in case we needed to swap it in.
 
==== Plan for week of 1/22 ====
 * Fix or swap BF.
 * Route selected cables to flange.
 * Test IM picos and BF yaw pico.
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==== Plan for week of 12/25 ====
 * Power outage 12/25.
 * Mark, Enzo, Fabian vacation
 * Shoda-san, Kozu-kun, Hirata-san at Kamioka - Hirata-san from Tue, others TBD.
 * Recover after power outage.
 * Create SR2 real-time model.
 * Install new jack receptacles (in SR3 area, second floor) on load gauge adapter (SR2 area, second floor). (Hirata-san)
 * Weigh IM (per Fabian's note in the paper log).
 * Remove L-brackets from bars on IM ring - send for cleaning/remachining.
 * Setup OL for checking pitch of SR.
 * Wipe/blow dust off SR2 frame.
 * Crane IM into frame.

==== Plan for week of 1/9 ====
 * Mark, Fabian, Enzo, Shoda-san at Kamioka Tue-Fri.
 * Hang SR and RM.		 ==== Plan for week of 1/29 ====
 * Enzo at Mitaka 1/29 and most of 1/30, then vacation.
 * Kozu-kun away.
 * All others at Kamioka.
 * Build IRM around IM.
 * Cable/test/adjust IM OSEMs.
 * Time permitting, do TFs from IM OSEMs to themselves and to optical sensor.
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 * Enzo 1/30-2/19  * Enzo 1/30-2/19 (at Mitaka 1/29, part of 1/30)
 * Kozu-kun 1/29-2/2

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 1/15

  • We set up the QPD for the OL, initialized the OL and TM sections of the RTM, and did TFs from the TM OSEMs to the OL.
  • Initially we had no coherence, but we debugged issues with the watchdog, LPCD, and DAC board and then got good TFs.
  • We lifted the IM/RM/SR with the load gauge adapter and checked the weight, which was close to the mass budget.
  • We installed the section of the AF above the IM, and the BF cross bars and jacks, and craned in the BF.
  • We installed the BF-IRM rods, IRM, BF-IM rod, flying saucer and the cable clamps on the bottom of the BF.
  • We hooked the IM section, but found it was heavy by several hundred grams. We also noticed the BF keystone had a noticeable tilt of about 1.2 mm (high on the +X side).
  • We removed 738 g of trim mass and found that load rose and sat about 2 mm high. So the discrepancy is of order 500-600 g.
  • Shoda-san, Enzo and Kozu-kun made and characterized a batch of OSEMs.
  • Hirata-san finished drawings for the improved BS PI yaw/vertical adjustment, placed orders for damping ring receptacles and other items, and prepared the second SR BF in case we needed to swap it in.

Plan for week of 1/22

  • Fix or swap BF.
  • Route selected cables to flange.
  • Test IM picos and BF yaw pico.

Plan for week of 1/29

  • Enzo at Mitaka 1/29 and most of 1/30, then vacation.
  • Kozu-kun away.
  • All others at Kamioka.
  • Build IRM around IM.
  • Cable/test/adjust IM OSEMs.
  • Time permitting, do TFs from IM OSEMs to themselves and to optical sensor.

Vacation Info

  • Enzo 1/30-2/19 (at Mitaka 1/29, part of 1/30)
  • Kozu-kun 1/29-2/2

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