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* Hirata-san produced a near-final Inventor assembly of the BS on the assembly frame, for use in writing the assembly procedure. * Includes assembly frame modifications suggested by Mirapro, including feet, wheels, lifting eyes, thicker crossbars under BF, IM etc. * Includes final rail system except for interface plate to mirror box. * Includes full PI with ballast masses. * Includes cable clamps. * Includes correct versions of BF and SF. * Includes new BF pushrod parts to work around different placement of blade screws in new version of BF. * Includes cleanbag support bars. * Includes key parts of mirror box (enough to check for interference) - needs more work. * Does not include various invisible duplicate assemblies that had been present due to cut and paste. * After a few more improvements, the new assembly will be sent back to Mirapro. * Got status from Miyakawa-san on electronics - there should be enough of the boxes AEL is supplying. * Cleanbag design was finalized; Aso-san is ordering: [[attachment:160419-チャンバーカバーⅡ型.pdf]] * Quote for flags and prisms was received, but expensive - may drop rigid flag design. * The mirror box will require only very minor modifications for flags and prisms - Tatsumi-san will arrange immediately. * Fabian worked on understanding Sekiguchi-san's control design to help decide optimum wire thickness. * Mark worked on install procedure and schedule. * Takahashi-san enquired with NIKHEF about oscillator cards for LVDT chassis - lead time would be 3-4 months. * |
=== Type B (Mark) === ==== Report for week of 9/10 ==== * We finish the invacuum and in air cabling for SR2, but the in-vacuum cables for Geophones and F0 Yaw stepper motor are just temporary and will be replaced later once the suspension is inside the tank. * We checked all the motors: * IM picos, BF picos. * BF Stepper (Fishing rod), SF Stepper (SF Fishing rod), F0 Stepper (F0 Fishing rod). * IP Steppers (Horizontal fishing rods). * We use the Steppers to set to nominal height the BF and SF, but for the SF we culd not move it too much and it is still too low. * We set up the temporary oplev for SR2. * We checked the pitch of the optics. The current pitch is: * We tried to check the TM actuators but there is a problem with the MEDM screens that we need to fix next week. * We measured TFs of the GAS filters and the 6 DoF of the IM. It seems to be healthy. * We set the F0 stepper to middle position. * ... === Type B (Mark) === ==== Report for week of 9/3 ==== * We did more in-vacuum and in-air cabling for SR2 and got nearly everything connected. * We debugged the IM OSEMs and fixed two broken in-vacuum cables and some mislabeled in-air cables. * We debugged an issue with the IP LVDTs and discovered it was a broken interface card D1402829 in the LVDT driver. We made up a working chassis with the original two driver cards, so we didn't have to reset all the phases and gains. * We reset the IP FRs to midrange. * We added a basic set of arc weights and recentered the IP. We then adjusted the verticality of the security structure. * We relocked the IP temporarily, unlocked the SF/... section and aligned the IM OSEMs. * We powered down the BS, SR3 and SR2 electronics in preparation for the power outage. ==== Plan for week of 9/10 ==== * Monday 9/10 is scheduled power outage. * Mark in US (job interview). * Hirata-san, Fabian, Kozu-kun, Panwei at Kamioka Tue-Fri. * Enzo at Kamioka Tue-Thu, then JPS Meeting Fri, then vacation. ===== Etc ===== * Recover from power outage. ===== SR2 ===== * Calibrate F0 LVDTs. * Calibrate IP LVDTs. * Cable geophones and any other remaining PI items. * Finish in-air cabling (sort out and relabel rack and feedthrough ends of any repurposed cables). * Do basic go/no-go test of electronic items. * Check SF keystone height and offload with FR as necessary. * Adjust ballast/trim mass of SF, with reserve for yaw stepper. * Set SF damper magnet ring height. * Check/tweak optic pitch. * TFs. ==== Plan for week of 9/17 ==== * Monday 9/17 is holiday (Respect for the Aged Day). * Enzo on vacation. * Mark, Hirata-san, Fabian, Panwei at Kamioka Tue-Fri. ===== SR2 ===== * Crane SR2 into tank. * Move SR2 in-air cables. * Remove First Contact. * Unlock and realign suspension. ===== SRM ===== * Set pitch of SRM and RM, tighten clamps, remove winch system. * Weigh IM/... section. * Build up SS to BF level. * Add BF. ==== Plan for week of 9/24 ==== * Monday 9/24 is holiday (Autumn Equinox). * Mark, Hirata-san, Fabian, Panwei at Kamioka Tue-Fri. * Suspend IM and tweak height/balance. ===== SRM ===== * Cable/test BF. * Install IRM. * Install/cable/test IM OSEMs. ==== To-Do Lists, Schedule ==== * [[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 Type B Schedule (SR)]] ==== Vacation Info ==== * Mark: 9/10-14 (job interview in US). * Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 9/10
- We finish the invacuum and in air cabling for SR2, but the in-vacuum cables for Geophones and F0 Yaw stepper motor are just temporary and will be replaced later once the suspension is inside the tank.
- We checked all the motors:
- IM picos, BF picos.
- BF Stepper (Fishing rod), SF Stepper (SF Fishing rod), F0 Stepper (F0 Fishing rod).
- IP Steppers (Horizontal fishing rods).
- We use the Steppers to set to nominal height the BF and SF, but for the SF we culd not move it too much and it is still too low.
- We set up the temporary oplev for SR2.
- We checked the pitch of the optics. The current pitch is:
- We tried to check the TM actuators but there is a problem with the MEDM screens that we need to fix next week.
- We measured TFs of the GAS filters and the 6 DoF of the IM. It seems to be healthy.
- We set the F0 stepper to middle position.
- ...
Type B (Mark)
Report for week of 9/3
- We did more in-vacuum and in-air cabling for SR2 and got nearly everything connected.
- We debugged the IM OSEMs and fixed two broken in-vacuum cables and some mislabeled in-air cables.
- We debugged an issue with the IP LVDTs and discovered it was a broken interface card D1402829 in the LVDT driver. We made up a working chassis with the original two driver cards, so we didn't have to reset all the phases and gains.
- We reset the IP FRs to midrange.
- We added a basic set of arc weights and recentered the IP. We then adjusted the verticality of the security structure.
- We relocked the IP temporarily, unlocked the SF/... section and aligned the IM OSEMs.
- We powered down the BS, SR3 and SR2 electronics in preparation for the power outage.
Plan for week of 9/10
- Monday 9/10 is scheduled power outage.
- Mark in US (job interview).
- Hirata-san, Fabian, Kozu-kun, Panwei at Kamioka Tue-Fri.
- Enzo at Kamioka Tue-Thu, then JPS Meeting Fri, then vacation.
Etc
- Recover from power outage.
SR2
- Calibrate F0 LVDTs.
- Calibrate IP LVDTs.
- Cable geophones and any other remaining PI items.
- Finish in-air cabling (sort out and relabel rack and feedthrough ends of any repurposed cables).
- Do basic go/no-go test of electronic items.
- Check SF keystone height and offload with FR as necessary.
- Adjust ballast/trim mass of SF, with reserve for yaw stepper.
- Set SF damper magnet ring height.
- Check/tweak optic pitch.
- TFs.
Plan for week of 9/17
- Monday 9/17 is holiday (Respect for the Aged Day).
- Enzo on vacation.
- Mark, Hirata-san, Fabian, Panwei at Kamioka Tue-Fri.
SR2
- Crane SR2 into tank.
- Move SR2 in-air cables.
- Remove First Contact.
- Unlock and realign suspension.
SRM
- Set pitch of SRM and RM, tighten clamps, remove winch system.
- Weigh IM/... section.
- Build up SS to BF level.
- Add BF.
Plan for week of 9/24
- Monday 9/24 is holiday (Autumn Equinox).
- Mark, Hirata-san, Fabian, Panwei at Kamioka Tue-Fri.
- Suspend IM and tweak height/balance.
SRM
- Cable/test BF.
- Install IRM.
- Install/cable/test IM OSEMs.
To-Do Lists, Schedule
Vacation Info
- Mark: 9/10-14 (job interview in US).
- Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile.