Differences between revisions 27 and 177 (spanning 150 versions)
⇤ ← Revision 27 as of 2016-06-10 11:41:20 →
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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) ===
==== Past week report ====
At Kamioka (Mark, Ohishi-san, Enzo, Yoshioka-kun, Kozu-kun):
 * We removed the LBB damper rings from the tank and passed them to Takahashi-san for recleaning. Unfortunately two screws galled, one holding on a Cu segment, and one holding on a joint piece.
 * We removed the LBB blade units from the PI, removed the blades and shipped them off for rework.
 * We pulled out all the old in-air cabling.
 * We laid about 9 new in-air cables.
 * We wrapped/labelled the BS mirror box, the winch system, the trolley adapters, and many other tools that we do not expect to use any time soon.
 * We connected up, tested and calibrated the BF LVDT.
 * We adjusted the ballast mass on the IM to make it hang level and at the right height. However we had to reduce the weight by a further 686 g relative to the plan of 2017-08-09. We found a combination that was good except for the fact that it used round masses on the bottom corners, so we decided to have the 641 g rectangular masses cut down by 60 g each. Mesco was able to do this within 24 hours. We will reclean the parts on Friday afternoon and swap them in on Monday.

==== Plan for week of 8/21 ====
Vacation: Fabian (Mon)<<BR>>
Internship: Kozu-kun (Mon-Fri)<<BR>>

Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri).
 * Swap in new IM ballast masses; tweak height and levelness.
 * Install side panels of IRM and OSEMs.
 * Route IRM OSEM cables, test/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.
 * Try TFs with optical sensors.
Mitaka: Hirata-san.
 * SR stuff.

==== Plan for week of 8/28 ====
Vacation: Fabian (Mon)<<BR>>
Internship: Kozu-kun (Mon-Fri)<<BR>>

Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri).
 * Swap in new IM ballast masses; tweak height and levelness.
 * Install side panels of IRM and OSEMs.
 * Route IRM OSEM cables, test/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.
 * Try TFs with optical sensors.
Mitaka: Hirata-san.
 * SR stuff.

==== Vacation Info ====
Fabian: Fri 8/4 through Mon 8/21
Mark: TBD Mid-Oct

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

At Kamioka (Mark, Ohishi-san, Enzo, Yoshioka-kun, Kozu-kun):

  • We removed the LBB damper rings from the tank and passed them to Takahashi-san for recleaning. Unfortunately two screws galled, one holding on a Cu segment, and one holding on a joint piece.
  • We removed the LBB blade units from the PI, removed the blades and shipped them off for rework.
  • We pulled out all the old in-air cabling.
  • We laid about 9 new in-air cables.
  • We wrapped/labelled the BS mirror box, the winch system, the trolley adapters, and many other tools that we do not expect to use any time soon.
  • We connected up, tested and calibrated the BF LVDT.
  • We adjusted the ballast mass on the IM to make it hang level and at the right height. However we had to reduce the weight by a further 686 g relative to the plan of 2017-08-09. We found a combination that was good except for the fact that it used round masses on the bottom corners, so we decided to have the 641 g rectangular masses cut down by 60 g each. Mesco was able to do this within 24 hours. We will reclean the parts on Friday afternoon and swap them in on Monday.

Plan for week of 8/21

Vacation: Fabian (Mon)
Internship: Kozu-kun (Mon-Fri)

Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri).

  • Swap in new IM ballast masses; tweak height and levelness.
  • Install side panels of IRM and OSEMs.
  • Route IRM OSEM cables, test/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.
  • Try TFs with optical sensors.

Mitaka: Hirata-san.

  • SR stuff.

Plan for week of 8/28

Vacation: Fabian (Mon)
Internship: Kozu-kun (Mon-Fri)

Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri).

  • Swap in new IM ballast masses; tweak height and levelness.
  • Install side panels of IRM and OSEMs.
  • Route IRM OSEM cables, test/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.
  • Try TFs with optical sensors.

Mitaka: Hirata-san.

  • SR stuff.

Vacation Info

Fabian: Fri 8/4 through Mon 8/21 Mark: TBD Mid-Oct

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