Differences between revisions 165 and 184 (spanning 19 versions)
⇤ ← Revision 165 as of 2017-07-14 07:14:06 →
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Editor: MarkBarton
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← Revision 184 as of 2017-09-01 14:00:30 → ⇥
Size: 2342
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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At Kamioka (Mark, Enzo, Yoshioka-kun):
 * We experimented with rearranging the arc weights to accommodate the magic wands and came up with a suitable scheme.
 * We used spare arc weights as extra ballast on the LBB to get it to float, and measured the height for a known load.
 * We put the blocks back under the LBB and unhooked it.
 * We moved the suspension from the tank back to the assembly frame.
 * We craned the LBB rings down onto the LBB but did not remove them yet. (This however is the last crane work in the tank until reinstallation, so the lid does not have to come off again and the pallet can be used for the PI.)
 * We put the crossbars back in the assembly frame underneath the SF and BF (and corrected an error in the height of the BF ones).
 * Enzo started setting up the SR3 rack (with help from Yamamoto-san).
 * We received the real BS optic and gluing tools, and glued the disks and rods into the modified magnet jigs. We also tried the re-made secondary prisms in the gluing jigs and made shims to hold them more securely.		 At Kamioka (Mark, Ohishi-san, Fabian, Enzo, Hirata-san, Yoshioka-kun, Kozu-kun):
 * We solved the problem with the OSEMs: cables had been plugged into the confusingly named "PD current monitor" outputs (actually LED current monitors), not the "OSEM outputs".
 * We solved a problem with the real-time model freezing which turned out to be the IO chassis having lost power.
 * We took some mass off the IM to allow for the weight of the cables, and readjusted it in pitch and roll.
 * We aligned the IRM to the IM and set the OSEMs to mid-range.
 * We added ballast to the BF.
 * We changed the receptacles for the SF-BF rod. The low receptacle did not fit properly into the BF keystone and Hirata-san had to file it.
 * We fixed a broken wire on the BF yaw pico, retested the pico and added the BF cap.
 * We cabled and tested the BF cap picos.
 * We lifted the BF and weighed and balanced it.
 * We installed the SF ring and brought in the SF.
 * We installed the Cu segments on the SF.
 * We cabled the SF LVDT and did a quick test (not a full calibration).
 * We replaced non-vacuum compatible cables in the PI, removed various sticky labels and wiped it with ethanol.
 * We tried to hook the SF-BF rod but found the hole in the hex cable clamp was too small for the 8 mm rod head. We enlarged the hole but then found the PEEK pieces were too loose. We tried using foil, but then managed to lose a PEEK piece into the BF, so we will need to remove the cap of the BF to get it.
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At Mitaka (Fabian and Hirata-san):
 * Hirata-san shipped the optic and gluing tools to Kamioka.
 * Hirata-san did drawings and RFQs for IM/BF/SF ballast masses
 * Fabian worked on the SRx assembly frame.		 ==== Plan for week of 9/4 ====
Mark, Fabian, Enzo (Tue-Fri), Ohishi-san, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun (Thu, Fri)
 * Retrieve PEEK piece from BF.
 * Crane SF back in.
 * Suspend BF/IRM/IM/RM/BS.
 * Test SF FR.
 * Calibrate SF LVDT.
 * Install SF cap; route cables.
 * Lift and weigh SF/BF/IRM/IM/RM/BS.
 * Adjust SF ballast.
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==== Plan for week of 7/18 ====
Full team at Kamioka from Tue-Fri, except Hirata-san (Tue-Wed only).
 * Glue prisms/magnets on BS.
 * Dismantle suspension.
 * Finish setting up filter service area (mostly already done by Mirapro).
 * Move BF to filter service area.		 ==== Plan for week of 9/13 ====
Mark (except Wed), Fabian (except ASJ), Enzo, Ohishi-san, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun
 * Prepare magnet ring.
 * Bring in PI.
 * Route cables.
 * Suspend SF/..., adjust tilt of SF and total mass.
 * Adjust damper gap.
  
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==== Plan for week of 7/24 ====
Full team at Kamioka from Mon-Fri, except Hirata-san (Tue-Fri) and Enzo (vacation).
 * Recheck alignment of assembly frame and centering of optical table.
 * Install IM, suspend BS and RM.

Vacation Info:
Hirata-san: Thu 7/20 through Mon 7/24
Enzo: Sat 7/22 through Sun 8/6
Fabian: Fri 8/4 through Mon 8/21		 ==== Vacation Info ====

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, Fabian, Enzo, Hirata-san, Yoshioka-kun, Kozu-kun):

  • We solved the problem with the OSEMs: cables had been plugged into the confusingly named "PD current monitor" outputs (actually LED current monitors), not the "OSEM outputs".
  • We solved a problem with the real-time model freezing which turned out to be the IO chassis having lost power.
  • We took some mass off the IM to allow for the weight of the cables, and readjusted it in pitch and roll.
  • We aligned the IRM to the IM and set the OSEMs to mid-range.
  • We added ballast to the BF.
  • We changed the receptacles for the SF-BF rod. The low receptacle did not fit properly into the BF keystone and Hirata-san had to file it.
  • We fixed a broken wire on the BF yaw pico, retested the pico and added the BF cap.
  • We cabled and tested the BF cap picos.
  • We lifted the BF and weighed and balanced it.
  • We installed the SF ring and brought in the SF.
  • We installed the Cu segments on the SF.
  • We cabled the SF LVDT and did a quick test (not a full calibration).
  • We replaced non-vacuum compatible cables in the PI, removed various sticky labels and wiped it with ethanol.
  • We tried to hook the SF-BF rod but found the hole in the hex cable clamp was too small for the 8 mm rod head. We enlarged the hole but then found the PEEK pieces were too loose. We tried using foil, but then managed to lose a PEEK piece into the BF, so we will need to remove the cap of the BF to get it.

Plan for week of 9/4

Mark, Fabian, Enzo (Tue-Fri), Ohishi-san, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun (Thu, Fri)

  • Retrieve PEEK piece from BF.
  • Crane SF back in.
  • Suspend BF/IRM/IM/RM/BS.
  • Test SF FR.
  • Calibrate SF LVDT.
  • Install SF cap; route cables.
  • Lift and weigh SF/BF/IRM/IM/RM/BS.
  • Adjust SF ballast.

Plan for week of 9/13

Mark (except Wed), Fabian (except ASJ), Enzo, Ohishi-san, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun

  • Prepare magnet ring.
  • Bring in PI.
  • Route cables.
  • Suspend SF/..., adjust tilt of SF and total mass.
  • Adjust damper gap.

Vacation Info

Mark: TBD Mid-Oct

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