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* Type B Past Week Summary * Fabian, Mark and Liu-kun did BS installation at Kamioka: * Debugged the issue with the BF keystone being tilted enough to cause rubbing on the yoke for the magnets. It was solved by moving the yoke ≈1 mm taking advantage of the oversized holes. * Measured the height of the payload as a function of trim mass. The BF spring seems to have a slightly lower load capacity and a rather higher spring constant than when it was remeasured by Hirata-san. * Removed IM trim mass to set the average height of the keystone to the CAD value. * Moved IM trim mass around to set the pitch of the dummy BS. * Hirata-san * TBD. |
=== 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) SR2/SR3/SRM: * Kozu-kun and Enzo finished the SR3 in-air cabling. * Enzo prepared the SR3 and SRM rack in parallel (On going). |
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* We got new power supply for the SR2 Rack. Before, the power was coming from the BS rack. BS: * Kozu-kun and Enzo helped Enomoto-san troubleshooting the BS Oplev issue (On going). Shipping: * We received the LBB parts for SR2. * We received the Payload parts (IM and IRM) this morning. ==== 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 ==== * [[KAGRA/Subgroups/VIS/TypeB/March2018]] * [[KAGRA/Subgroups/VIS/TypeB/April2018]] * [[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-v1 Type B Schedule (SR)]] ==== Vacation Info ==== * Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun) * Fabian vacation, 3/26-4/27 (then gone). |
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)
SR2/SR3/SRM:
- Kozu-kun and Enzo finished the SR3 in-air cabling.
- Enzo prepared the SR3 and SRM rack in parallel (On going).
- We got new power supply for the SR2 Rack. Before, the power was coming from the BS rack.
BS:
- Kozu-kun and Enzo helped Enomoto-san troubleshooting the BS Oplev issue (On going).
Shipping:
- We received the LBB parts for SR2.
- We received the Payload parts (IM and IRM) this morning.
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).