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 * Type B Past Week Summary
  * Fabian finished dummy BS assembly.
  * Mark and Tatsumi-san glued magnets into both types of BS optic flags, and discs into BS IM flags. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1815 |klog]] Two optic flags had to be redone because the magnets moved while the glue was drying. Hirata-san helped remove the magnets with acetone in the ultrasonic cleaner. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1818|klog]]
  * Tatsumi-san, Fabian and Mark took the dummy BS to Kashiwa and glued the flags and prisms. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1821|klog]] We will check status on Mon 6/13.
  * Hirata-san moved in another filter for testing (but didn't get to measure it).
  * Hirata-san washed a batch of parts.
  * Hirata-san modified the design of the parts of the assembly frame supporting the BF and SF to include bushings for smoother movement.
  * Hirata-san researched and ordered a crane scale for use at the site. (We decided the 500-kg version of the 200-kg one used at TAMA. It is the same price and has the same 100-g resolution for the first 250 kg.)
  * Hirata-san worked on making some guide parts for the PI installation (Misumi parts with minor additional machining from ATC).
  * We finalized a design for simple SS mirror parts for the dummy BS with Akutsu-san. They will be made by ATC.
  * Mark worked on list of items for purchase in FY2016 and on the schedule.
  * Fabian did more work on the IM assembly. It is nearly done and he will start on the RM next week. There were some issues with crimping connectors to wires for making pico adapter cables.
 * Type B ongoing issues
  * Wires
   * Need to decide RM wire thickness and order BS and RM wires. Lead time is a few days from Nilaco.
  * OSEMs
  * Feedthrough Adapters
   * Need large quantity of male and female D-Sub 9, IDC ribbon connectors - Takahashi-san is getting a quote.
  * Can we make SR wire breakers bigger?
   * Fukushima-san will start on machining test soon (as of 5/27).
  * Not enough crane height problem (Hirata, Saito) - no action since last week
  * Installation stuff
   * Crane scale - quote received
   * Work platforms - quote received
  * Ballast masses for payload
   * Initial batch received - ordered extra smaller ones to allow for adjustments.
  * Lower breadboard stuff
   * Installation to be incorporated into the procedure document. Mark/Takahashi to discuss.
   * Breadboard springs (in manufacture, expected end of July)
   * Nail-head parts: quote from Mirapro received, not urgent, will be combined with assembly frame order.
  * Clean bag - expected 6/8.
  * Documents
   * BS Assembly Procedure [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4235| E1504235]], [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]]		 === Type B (Mark) ===
==== Report for week of 7/17 ====
 * We checked the polarity of the IP LVDTs and flipped coil connections to get the standard arrangement.
 * We debugged an issue where one of the LVDT actuators had half the magnets in backwards resulting in no force.
 * We calibrated all the PI LVDTs.
 * We set the SF damper ring gap.
 * We prepped the suspension for craning, moved it into the tank and hooked the LBB damper ring rods.
 * Type A merged the SRM F0 with the correct IP, and we moved it out of the way (to the second floor behind the SRM tank).
 * We installed more cable clamps on the SR2 PI.

==== Plan for week of 7/23 ====
 * Mark, Enzo, Fabian, Kozu-kun, Terrence, Panwei at Kamioka Mon-Fri.
 * Hirata-san at Kamioka Mon-Thu.
 * Mirapro moves assembly frame ≈7/25 (Wed).

===== SR3 =====
 * Unlock suspension.
 * Rearrange cables.
 * Test.
===== SR2 =====
 * Finish PI prep.
 * Crane into AF, suspend.
 * Start cable routing.
===== SRM =====
 * Prepare to assemble SRM metal mass (most parts due Wed 7/25).
 * Help Mirapro with AF move.
 * Start rebuild of top filter of PI #2.

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]]
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779 Type B Schedule (SR)]]

==== Vacation Info ====
 * Hirata-san at Mitaka 7/27.
 * Terrence: 8/24-26 f2f, then returns to Hong Kong.
 * Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 7/17

  • We checked the polarity of the IP LVDTs and flipped coil connections to get the standard arrangement.
  • We debugged an issue where one of the LVDT actuators had half the magnets in backwards resulting in no force.
  • We calibrated all the PI LVDTs.
  • We set the SF damper ring gap.
  • We prepped the suspension for craning, moved it into the tank and hooked the LBB damper ring rods.
  • Type A merged the SRM F0 with the correct IP, and we moved it out of the way (to the second floor behind the SRM tank).
  • We installed more cable clamps on the SR2 PI.

Plan for week of 7/23

  • Mark, Enzo, Fabian, Kozu-kun, Terrence, Panwei at Kamioka Mon-Fri.
  • Hirata-san at Kamioka Mon-Thu.
  • Mirapro moves assembly frame ≈7/25 (Wed).

SR3
  • Unlock suspension.
  • Rearrange cables.
  • Test.

SR2
  • Finish PI prep.
  • Crane into AF, suspend.
  • Start cable routing.

SRM
  • Prepare to assemble SRM metal mass (most parts due Wed 7/25).
  • Help Mirapro with AF move.
  • Start rebuild of top filter of PI #2.

To-Do Lists, Schedule

Vacation Info

  • Hirata-san at Mitaka 7/27.
  • Terrence: 8/24-26 f2f, then returns to Hong Kong.
  • Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile.

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