Differences between revisions 246 and 270 (spanning 24 versions)
⇤ ← Revision 246 as of 2018-03-09 13:42:04 →
Size: 3090
Editor: MarkBarton
Comment:
← Revision 270 as of 2018-03-30 11:09:05 → ⇥
Size: 2955
Editor: EnzoTapia
Comment:
Deletions are marked like this. Additions are marked like this.
Line 6: Line 6:
==== Report for week of 3/5 ====
 * Mark finished -v2 of the schedule ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779| L1807779]]).
 * We removed the non-vacuum-compatible ballast mass from the BS tank.
 * We secured all the PR2 feedthrough connections with screws.
 * We grabbed an extra empty rack for SRM and set it up next to the one for SR3 (we will add boxes next week).
 * We calibrated the SR2 SF LVDT sensing and actuation, and the FR.
 * We measured the bounce frequencies of the SF with and without the cap, and the bounce frequency of the BF.
 * We put the SF cap on and lifted and weighed the SF/... section.
 * However we were unhappy with how the cap had to be forced on and off and how it lowered the load capacity (≈-433 g) and resonance frequency (0.271 Hz-> 0.23 Hz).
 * We tried the cap left over from B2-3 used in one of the PRs, which was slightly better but still not great.
 * We measured diameter of the original cap (B2-2) and the new one (B2-3). The original cap was almost exactly 700 mm in internal diameter, and the new one was about 0.2 mm wider.
 * We moved the filter building bench and tools into the SRM area and started the rebuild of the two remaining BFs (the one from the BS Test Hang and the one with the tilted keystone).
 * Mark worked on slides for the ASJ and LVC meetings.
 * The SRM mushroom work was postponed due to other demands on the time of Sawada-san-tachi and Mirapro.		 ==== Report for week of 3/26 ====
Line 21: Line 8:
==== Plan for week of 3/12 ====
 * Shoda-san at Mitaka.
 * Mark at ASJ (Chiba) Fri, then Mitaka.
 * Others Kamioka Mon-Thu
 * F2F VIS Meeting and Farewell Party for Fabian at Mitaka on Friday.
 * --
 * Install boxes in SR3 and SRM racks.
 * Lay SR3 in-air cabling.
 * Continue rebuild of BFs.
 * Ship dummy BS to Mitaka.		 BFs:
Line 32: Line 10:
==== Plan for week of 3/19 ====
 * Fujii-kun and Tanioka-kun join.
 * Mark at LVC meeting
 * Fujii-kun at Kamioka
 * All others at Mitaka
 * --
 * Put four geophones in pods.
 * Make two sets of IM OSEMs
 * Make last in-air pico adapter cable
 * Make three in-air stepper splitter cables for SR2, SR3 and SRM.
 * Set up Dummy BS prism removal.		  * BF No. 1:
  * Fujii-san finished tuning. Optimal load: 52.15[kg]. Resonance frequency: 0.37[Hz]. Optimal height: 64.7[mm].
  * We wired the LVDT, Picomotor and Steppermotor.
  * We measured the keystone tilt at different points and the diferences are within 0.1[mm]
  * We added cable clamps to the base.

 * BF No.7:
  * Tanioka-san and Fujii-san replaced the blades corresponding to the BS for the SR type blades.
  * The yoke position was corrected.
  * The fishing rod was assembled.
  * Compression tuning is ongoing.??

SFs:

 * Hirata-san and Tanioka-san set up the frame to check the SFs.

 * SF (B2-5):
  * Hirata-san, Fujii-san and Tanioka-san checked the optimal load with and without cap. The optimal load changes about 250[g]. The cap didn't came out smoothly.
  * We measured the keystone tilt at different points, and the diferences are within 0.1[mm] (65.5, 65.5, 65.5, 65.4)

 * SF (B2-6):
  * Hirata-san, Fujii-san and Tanioka-san checked the optimal load with and without cap (On going?).
  * We measured the keystone tilt at different points, and the diferences are within 0.3[mm] (63.7, 63.5,63.8, 63.8)

SR3/SRM:

 * Kozu-kun and Enzo finished the SR3 in-air cabling.

 * Enzo prepared the SR3 and SRM rack in parallel (On going).

BS:

 * Kozu-kun and Enzo helped Enomoto-san troubleshooting the BS Oplev issue (On going).
Line 45: Line 45:
==== Plan for week of 3/26 ====
 * Mark vacation.		 ==== Plan for week of 4/2 ====
 * Mark at Mitaka Mon, Kamioka from Tue.
Line 50: Line 50:
 * SF Check
  * Check load capacity.
  * Check fit of caps.
  * Add cable clamps to bases.
  * Add cable clamps and Cu segments to caps (only if they fit well).
  * Cable LVDTs and steppers.		  * Finish BFs tasks (cabling +calibration)
 * Finish SFs tasks (cabling +calibration)
 * Add cable clamps to bases.
 * Add cable clamps and Cu segments to caps (only if they fit well).
 * Build 2xIM, 2xIRM
 * Glue SR3 mirror?

==== Plan for week of 4/9 ====
 * Shoda-san at Mitaka
 * Fujii-san at Mitaka
 * Tanioka-san at Mitaka?
 * Others at Kamioka
 * --
 * Finish IMs and IRMs
 * Build 1xRM
 * Glue SR3 mirror?

==== Plan for week of 4/16 ====
 * Shoda-san at Mitaka
 * Fujii-san at Mitaka
 * Tanioka-san at Mitaka?
 * Others at Kamioka
 * --
 * Start SR3 Hang?

==== Plan for week of 4/23 ====
 * Shoda-san at Mitaka
 * Fujii-san at Mitaka?
 * Tanioka-san at Mitaka?
 * Others at Kamioka
 * --
 * F0 blade prototype test

==== Plan for week of 4/30 ====
  * Golden Week!
Line 66: Line 95:
 * Hirata-san vacation, Mon 3/5.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 3/26

BFs:

  • BF No. 1:
    • Fujii-san finished tuning. Optimal load: 52.15[kg]. Resonance frequency: 0.37[Hz]. Optimal height: 64.7[mm].
    • We wired the LVDT, Picomotor and Steppermotor.
    • We measured the keystone tilt at different points and the diferences are within 0.1[mm]
    • We added cable clamps to the base.
  • BF No.7:
    • Tanioka-san and Fujii-san replaced the blades corresponding to the BS for the SR type blades.
    • The yoke position was corrected.
    • The fishing rod was assembled.
    • Compression tuning is ongoing.??

SFs:

  • Hirata-san and Tanioka-san set up the frame to check the SFs.
  • SF (B2-5):
    • Hirata-san, Fujii-san and Tanioka-san checked the optimal load with and without cap. The optimal load changes about 250[g]. The cap didn't came out smoothly.
    • We measured the keystone tilt at different points, and the diferences are within 0.1[mm] (65.5, 65.5, 65.5, 65.4)
  • SF (B2-6):
    • Hirata-san, Fujii-san and Tanioka-san checked the optimal load with and without cap (On going?).
    • We measured the keystone tilt at different points, and the diferences are within 0.3[mm] (63.7, 63.5,63.8, 63.8)

SR3/SRM:

  • Kozu-kun and Enzo finished the SR3 in-air cabling.
  • Enzo prepared the SR3 and SRM rack in parallel (On going).

BS:

  • Kozu-kun and Enzo helped Enomoto-san troubleshooting the BS Oplev issue (On going).

Plan for week of 4/2

  • Mark at Mitaka Mon, Kamioka from Tue.
  • Shoda-san at Mitaka
  • Others at Kamioka
  • --
  • Finish BFs tasks (cabling +calibration)
  • Finish SFs tasks (cabling +calibration)
  • Add cable clamps to bases.
  • Add cable clamps and Cu segments to caps (only if they fit well).
  • Build 2xIM, 2xIRM
  • Glue SR3 mirror?

Plan for week of 4/9

  • Shoda-san at Mitaka
  • Fujii-san at Mitaka
  • Tanioka-san at Mitaka?
  • Others at Kamioka
  • --
  • Finish IMs and IRMs
  • Build 1xRM
  • Glue SR3 mirror?

Plan for week of 4/16

  • Shoda-san at Mitaka
  • Fujii-san at Mitaka
  • Tanioka-san at Mitaka?
  • Others at Kamioka
  • --
  • Start SR3 Hang?

Plan for week of 4/23

  • Shoda-san at Mitaka
  • Fujii-san at Mitaka?
  • Tanioka-san at Mitaka?
  • Others at Kamioka
  • --
  • F0 blade prototype test

Plan for week of 4/30

  • Golden Week!

To-Do Lists, Schedule

Vacation Info

  • Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
  • Fabian vacation, 3/26-4/27 (then gone).

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