Differences between revisions 165 and 222 (spanning 57 versions)
⇤ ← Revision 165 as of 2017-07-14 07:14:06 →
Size: 2069
Editor: MarkBarton
Comment:
← Revision 222 as of 2018-01-26 13:25:34 → ⇥
Size: 2215
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
Line 6: Line 6:
==== Past week report ====
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.		 ==== Report for week of 1/15 ====
 * We swapped in the other available BF, and it was rather better: only 0.3 mm of keystone tilt rather than 1.3 mm. We will use it for the SR2 and then think about whether we want to use or rebuild the original one.
 * We finished the preparation of the second BF, setting the yoke, adding the new-style cable clamps etc.
 * We changed the 1.6 mm sockets on the BF LVDT cable to 1.0 mm ones to match the pins on the LVDT wires. The specification of the cable in D1503901 was apparently wrong. We will update it (today) before doing the cable order for the SR3 and SRM.
 * We updated the BS real-time model and screens, adding support for a damping filter common to both the OL-TM and OL-IM paths, per Izumi-san's suggestion in G1807653.
 * We set up the router for the SR2 rack and got the SR2_IM pico driver and both stepper motors on the network (the SR2_BF pico is still on order).
 * We did prep for the top filter test:
  * We received, unpacked and temporarily stored a shipment of weights and other parts.
  * We removed the top crossbars from the SR3 assembly frame.
Line 17: Line 16:
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.		  
Line 22: Line 18:
==== 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 1/29 ====
 * Enzo at Mitaka 1/29 and most of 1/30, then vacation.
 * Kozu-kun away.
 * All others at Kamioka.
 * Make in-air pico adapter cables.
 * Test IM picos and BF yaw pico.
 * Test FR.
 * Calibrate LVDT.
 * Get screws for ballast mass from Takahashi-san.
 * Install ballast mass in BF.
 * Set up for F0 test.
  * Lower IM crossbars in SR3 assembly frame.
  * Open curtain on SR3 crane slot.
  * Set up dummy load (weight carrier, rods etc).
 * Do F0 test.
  * Bring in F0.
  * Hook up dummy load.
  * Adjust dummy load.
Line 29: Line 37:
==== 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. 		==== Plan for week of 2/5 ====
 * Enzo on vacation; 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.
Line 34: Line 43:
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
Mark: TBD Mid-Oct		 ==== Plan for week of 2/12 ====
 * Enzo on vacation; all others at Kamioka.

==== Vacation Info ====
 * 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 swapped in the other available BF, and it was rather better: only 0.3 mm of keystone tilt rather than 1.3 mm. We will use it for the SR2 and then think about whether we want to use or rebuild the original one.
  • We finished the preparation of the second BF, setting the yoke, adding the new-style cable clamps etc.
  • We changed the 1.6 mm sockets on the BF LVDT cable to 1.0 mm ones to match the pins on the LVDT wires. The specification of the cable in D1503901 was apparently wrong. We will update it (today) before doing the cable order for the SR3 and SRM.
  • We updated the BS real-time model and screens, adding support for a damping filter common to both the OL-TM and OL-IM paths, per Izumi-san's suggestion in G1807653.
  • We set up the router for the SR2 rack and got the SR2_IM pico driver and both stepper motors on the network (the SR2_BF pico is still on order).
  • We did prep for the top filter test:
    • We received, unpacked and temporarily stored a shipment of weights and other parts.
    • We removed the top crossbars from the SR3 assembly frame.

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.
  • Make in-air pico adapter cables.
  • Test IM picos and BF yaw pico.
  • Test FR.
  • Calibrate LVDT.
  • Get screws for ballast mass from Takahashi-san.
  • Install ballast mass in BF.
  • Set up for F0 test.
    • Lower IM crossbars in SR3 assembly frame.
    • Open curtain on SR3 crane slot.
    • Set up dummy load (weight carrier, rods etc).
  • Do F0 test.
    • Bring in F0.
    • Hook up dummy load.
    • Adjust dummy load.

Plan for week of 2/5

  • Enzo on vacation; 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.

Plan for week of 2/12

  • Enzo on vacation; all others at Kamioka.

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)