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| === Type B (Mark) === ==== Past week report ==== |
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| * Updated the 3D assembly model for BS (among other issues, it turned out that parts were not correctly mated near where the suspension sits on the hydraulic jacks in the tank). * Liaised with IJECT. * Made an inventory for Type B (BS and SR). * Packed and shipped second winch to Kamioka. * Packed some jigs for adjusting BF blades. * Attended NINS information security seminar. * Attended the public hearing for the Opt-IR Research Division Chief Election. * Mark and Fabian at Kamioka (plus Enzo for 2 days): * Finished rebalance of IM * Reinstalled IRM, adjusted OSEMs * Replaced broken Type 3 cable on IM-H1 OSEM. * Fixed issues with k1visbs real-time model. * Started TFs from IRM OSEMs to IRM and IM OSEMs. * Mark, Fabian and Enzo * |
* Worked on the PR optic removal jig. * Enzo-san * Worked on getting his drivers license. * Mark, Fabian (at Kamioka): * Tried different strategies for getting the IRM-IM EQ stops and IRM OSEMs to line up simultaneously. * Realized that the main problem was that the pitch of the BS had changed relative to the IM (presumably due to slight slippage of the wires) so the IM had to be pitched up by 16 mrad to get the BS pitched slightly down (4.7 mrad). * Took the sides off the IRM to get access to the clamps and tightened them to prevent further slips. * Rebalanced the IM to be level in pitch (and roll). * Reassembled the IRM and aligned the IRM-IM EQ stops - this time it was easy. * Adjusted the IRM and RM OSEMs to mid-range. ==== Plan for coming weeks ==== * Mark and Enzo come to Kamioka and work on rack and cabling. * Fabian works on design, including SR assembly frame. * |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Past week report
- Hirata-san:
- Worked on the PR optic removal jig.
- Enzo-san
- Worked on getting his drivers license.
- Mark, Fabian (at Kamioka):
- Tried different strategies for getting the IRM-IM EQ stops and IRM OSEMs to line up simultaneously.
- Realized that the main problem was that the pitch of the BS had changed relative to the IM (presumably due to slight slippage of the wires) so the IM had to be pitched up by 16 mrad to get the BS pitched slightly down (4.7 mrad).
- Took the sides off the IRM to get access to the clamps and tightened them to prevent further slips.
- Rebalanced the IM to be level in pitch (and roll).
- Reassembled the IRM and aligned the IRM-IM EQ stops - this time it was easy.
- Adjusted the IRM and RM OSEMs to mid-range.
Plan for coming weeks
- Mark and Enzo come to Kamioka and work on rack and cabling.
- Fabian works on design, including SR assembly frame.