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| At Kamioka (Mark, Enzo, Simon, Type Bp team): * Mark remade the BF pico adapter cable which was poorly made and had also been damaged. * The Type Bp team tided up the BS rack and made new labels for many cables (thanks!). * Enzo connected up the in-air cables for the picos and steppers. * Mark and Enzo renumbered the PI LVDTs, geophones and LVDTs to make a consistent scheme working anticlockwise. * Enzo and Mark debugged all the cables. The only problem we couldn't solve was that the actuator coil for PI LVDT #0 is open-circuit at the connector on the LVDT. (It has been intermittent but worked before the craning.) We may have to redo the connector or replace the LVDT. Limited TFs will be possible in the next week. * Simon set up the LSOL and was easily able to get a return beam from the mirror on the dummy BS. * Shoda-san copied over the LSOL section of the PR3 real-time model into the BS model and made other improvements (thanks!). * Mark brought home |
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| At Mitaka (Fabian, Hirata-san): * Fabian finished designing final trim masses for IM/BF/SF for the final hang of the BS and passed it to Hirata-san to make drawings and get quotes. * Hirata-san requested quotes for the replaceable-jaw version of the BS wire clamps. * Fabian and Hirata-san gathered needed items for the BS prism/flag gluing. * Hirata-san designed receptacles for the new rods with 8 mm heads and requested quotes. |
* Mark and Fabian did a huge cleanup of the SR2 area and prepared a workspace for assembling the IM. * Fabian did a stocktake of the screws for the SR. * We have all we need for the IM, except one type that can be added after the rest of the IP is assembled. * We have most of what we need for the rest of the payload, and Hirata-san has ordered the others. * Hirata-san worked on SR procurement: * Suspension wire * SR additional parts (compensation masses, clamps etc) * Regular, SDC and BUMAX screws. * Additional machining on the BS sapphire prism jig to allow it to be used on the PR/SR mirror box. * LBB blade design. * Enzo and Kozu-kun (with help from Fujii-kun) worked on export from SUMCON to Matlab, and on filter design. |
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| ==== Plan for week of 7/3 ==== * Do prism/flag gluing on real BS at Kashiwa (whole team). * Do new 3D CAD (Hirata-san): * SR2 on BS assembly frame. (Adjust jack positions if possible, or leave for Fabian/Mark to do.) * Final BS build, SS/PI/SF as for Test Hang but with BF/IRM/IM/BS/RM down rotated back to original direction. * On-assembly-frame version. (Adjust jack positions if possible, or leave for Mark to do.) * In-tank version. * Solve arc weight versus magic wand problem. * Do mass budget for LBB - design ballast masses (Fabian) * Run TFs, make improvements to real-time model (Mark, Enzo). |
==== Plan for week of 11/20 ==== * Holiday on Thu 3/23 * All at Mitaka. * SR procurement, planning (Mark, Hirata-san) * SR mass budget (Fabian) * BS modeling filter design (Enzo, Kozu-kun) |
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| ==== Plan for week of 7/10 ==== Mark and Enzo at Kamioka: * Fix broken LVDT actuator coil. * Learn how Miyo-kun's pico driver software works and make improvements. * Test picos and steppers more fully. * Finish tidying rack and labeling cables. Fabian and Hirata-san at Mitaka. * Design SR assembly frame. * Inventory for SR. |
==== Plan for week of 11/27 ==== * Fabian at commissioning workshop * Hirata-san at Kamioka to work with Mirapro on SRM LBB installation. * All others at Kamioka to start SR2 assembly. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Past week report
- Mark and Fabian did a huge cleanup of the SR2 area and prepared a workspace for assembling the IM.
- Fabian did a stocktake of the screws for the SR.
- We have all we need for the IM, except one type that can be added after the rest of the IP is assembled.
- We have most of what we need for the rest of the payload, and Hirata-san has ordered the others.
- Hirata-san worked on SR procurement:
- Suspension wire
- SR additional parts (compensation masses, clamps etc)
- Regular, SDC and BUMAX screws.
- Additional machining on the BS sapphire prism jig to allow it to be used on the PR/SR mirror box.
- LBB blade design.
- Enzo and Kozu-kun (with help from Fujii-kun) worked on export from SUMCON to Matlab, and on filter design.
Plan for week of 11/20
- Holiday on Thu 3/23
- All at Mitaka.
- SR procurement, planning (Mark, Hirata-san)
- SR mass budget (Fabian)
- BS modeling filter design (Enzo, Kozu-kun)
Plan for week of 11/27
- Fabian at commissioning workshop
- Hirata-san at Kamioka to work with Mirapro on SRM LBB installation.
- All others at Kamioka to start SR2 assembly.