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* Type B Past Week Summary * Fabian did inventory of parts/fasteners for dummy BS, RM, IM and IRM - almost all at Mitaka. A handful (picos, pico drivers) will be brought back from Kamioka. * Fabian continued work on Mathematica and Matlab models of the BS and control system. He now gets much better agreement after correcting discrepancies between the parameter sets. * Hirata-san worked on organizing: * Checking Mirapro assembly frame drawings * Ordering missing screws and small items (screws for dummy mass, fine pitch M8 for RM) * Work platforms and clean booth second floor arrangement. * Load gauge adapter and associated parts * Possible fall-back plans for the rods connecting the security structure to the PI. * Design for additional trim masses (existing design had no provision for adding/removing). |
=== Type B (Mark) === ==== Past two weeks report ==== At Kamioka (Mark, Enzo, Kozu-kun): * Supported IA team. * Replaced LPCDs for IM OSEMs with HPCDs for increased pitch/yaw range. * Re-zeroed OL after significant change of beam position during IA. * Re-laid-out OL to improve focus of lens to LEN QPD. * Offloaded the pitch/yaw actuation at the IM OSEMs using the IM pitch/yaw picos. * Enzo worked on design of control loops using the OL. * Kozu-kun worked on diagonalizing the OL. Mitaka (Fabian, Hirata-san): * Hirata-san published his inventory of SR parts on Dropbox. ==== Plan for week of 11/13 ==== Kamioka: Mark * Attend commissioning workshop at U Toyama. * Be person-on-site for BF work. * Set up for mirror gluing. Mitaka: Fabian and Hirata-san * SR procurement. * New PI GAS FR design. * BS LBB ballast mass design. * SR cable lamp design. Mitaka: Enzo and Kozu-kun (Wed, Thu) * Servos * TFs of BF * Documentation |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Past two weeks report
At Kamioka (Mark, Enzo, Kozu-kun):
- Supported IA team.
- Replaced LPCDs for IM OSEMs with HPCDs for increased pitch/yaw range.
- Re-zeroed OL after significant change of beam position during IA.
- Re-laid-out OL to improve focus of lens to LEN QPD.
- Offloaded the pitch/yaw actuation at the IM OSEMs using the IM pitch/yaw picos.
- Enzo worked on design of control loops using the OL.
- Kozu-kun worked on diagonalizing the OL.
Mitaka (Fabian, Hirata-san):
- Hirata-san published his inventory of SR parts on Dropbox.
Plan for week of 11/13
Kamioka: Mark
- Attend commissioning workshop at U Toyama.
- Be person-on-site for BF work.
- Set up for mirror gluing.
Mitaka: Fabian and Hirata-san
- SR procurement.
- New PI GAS FR design.
- BS LBB ballast mass design.
- SR cable lamp design.
Mitaka: Enzo and Kozu-kun (Wed, Thu)
- Servos
- TFs of BF
- Documentation