|
Size: 2743
Comment:
|
Size: 1774
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 6: | Line 6: |
| ==== Past week report ==== At Kamioka (Mark, Ohishi-san, Fabian, Enzo, Hirata-san, Yoshioka-kun, Kozu-kun): * We characterized the remachined LBB blades, chose three and installed them in the LBB blade units in the PI. * We removed all sticky labels from the PI and cleaned the affected areas (and as much as possible of the rest of the surface) with ethanol. * We rearranged the arc weights on the PI to make space for the magic wand and installed the magic wand. * We rearranged the magnets on the SF damper ring to suit three Cu segments (instead of two as in the test hang). * We put proper vacuum-compatible tubing around all the stepper motor connections on the top of the PI (replacing cling wrap). * We craned out the SF temporarily and retrieved the lost PEEK cable clamp collet from the BF. * We closed the BF, craned the SF back in, and hooked the BF/..., this time with the hex cable clamp. * We routed cables from the BF via the hex cable clamp to the SF level. * We adjusted the BF trim mass for pitch, roll and vertical, and got the IRM hanging symmetrically around the IM. * We adjusted all the IRM OSEMs laterally and in/out. * We calibrated the SF LVDT and tested the SF FR stepper. * We suspended the SF/... section and weighed it but found the old 7-mm maraging rod adapter did not hold it at the center, so we had to lift it with slings and could not accurately trim it for pitch/roll. * Therefore we brought forward the craning in of the PI with the SF damper ring hanging from it. * We suspended the SF successfully from the PI and unlocked the F0 keystone to check the mass budget. We needed about 1.5 kg extra, which is about right considering the hex cable clamp and cables. * However we had to leave out the F0-SF hex cable clamp because of a bad thread on the inside of the cap. Hirata-san will make a new cap by enlarging the 7-mm hole in an old cap to 8 mm. |
==== Report for week of 1/29 ==== * Mark made two sets of in-air pico splitter cables (each with a triple for IM and a double for BF) for SR2 and SR3. * Fabian, Hirata-san and Kozu-kun worked on cabling and testing the IM pitch/roll/yaw picos, the BF FR and the BF LVDT. The LVDT connections were initially unreliable and Hirata-san had to redo the pins on the coil wires. * Fabian installed ballast masses in the BF. * Mark worked on schedule. * Mark did inventory of the stepper motor drivers (many were not accounted for on the wiki and/or JGWDoc and one is missing) and reserved two for SR3. |
| Line 24: | Line 13: |
| ==== Plan for week of 9/13 ==== Mark (except Wed), Fabian (except Mon, Tue), Enzo, Ohishi-san (except Mon-Wed), Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun * Reinstall F0-SF rod, this time with hex cable clamp. * Route cables. * Adjust SF trim mass, adjust tilt and vertical. * Adjust SF damper gap. * Cable and test IP LVDTs. * Cable and test F0 LVDT. * Cable and test PI steppers. * Cable and test geophones. * ==== Plan for week of 9/19 ==== No work Mon 9/18 (敬老の日)<BR> Mark, Fabian, Enzo, Ohishi-san, Hirata-san, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun * Install LBB damper rings. * Install suspension. |
==== Plan for week of 2/13 ==== * No work Monday (建国記念の日の振替休日) * Enzo on vacation * Hirata-san at Mitaka Tue (self-evaluation interview). * Shoda-san at Mitaka. * All others at Kamioka. * - * Build IRM around IM. * Cable/test/adjust IM OSEMs. * Do TFs from IM OSEMs to IM OSEMs, OL pitch/yaw. ==== Plan for week of 2/19 ==== * Enzo back from Tuesday. * Shoda-san at Mitaka. * Hirata-san at Mitaka Tue+Wed (to receive and wash parts; hope to change to Mon+Tue). * All others at Kamioka. * - * Lift BF/... section and check total mass and balance. * Cable and test BF picos. * Add section of SS up to SF ring. * Bring in SF. * Hook BF/... section. * Route cables up to under SF. * Check/adjust total mass of BF/... section. ==== Plan for week of 2/26 ==== * Shoda-san at Mitaka. * - * Add Cu segments to SF cap. * Lift SF/... section and check total mass and balance. |
| Line 42: | Line 45: |
| Mark: 10/16-24 | * Enzo 1/30-2/19. * Fabian 4/2-4/27 vacation (then gone). |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 1/29
- Mark made two sets of in-air pico splitter cables (each with a triple for IM and a double for BF) for SR2 and SR3.
- Fabian, Hirata-san and Kozu-kun worked on cabling and testing the IM pitch/roll/yaw picos, the BF FR and the BF LVDT. The LVDT connections were initially unreliable and Hirata-san had to redo the pins on the coil wires.
- Fabian installed ballast masses in the BF.
- Mark worked on schedule.
- Mark did inventory of the stepper motor drivers (many were not accounted for on the wiki and/or JGWDoc and one is missing) and reserved two for SR3.
Plan for week of 2/13
- No work Monday (建国記念の日の振替休日)
- Enzo on vacation
- Hirata-san at Mitaka Tue (self-evaluation interview).
- Shoda-san at Mitaka.
- All others at Kamioka.
- -
- Build IRM around IM.
- Cable/test/adjust IM OSEMs.
- Do TFs from IM OSEMs to IM OSEMs, OL pitch/yaw.
Plan for week of 2/19
- Enzo back from Tuesday.
- Shoda-san at Mitaka.
- Hirata-san at Mitaka Tue+Wed (to receive and wash parts; hope to change to Mon+Tue).
- All others at Kamioka.
- -
- Lift BF/... section and check total mass and balance.
- Cable and test BF picos.
- Add section of SS up to SF ring.
- Bring in SF.
- Hook BF/... section.
- Route cables up to under SF.
- Check/adjust total mass of BF/... section.
Plan for week of 2/26
- Shoda-san at Mitaka.
- -
- Add Cu segments to SF cap.
- Lift SF/... section and check total mass and balance.
Vacation Info
- Enzo 1/30-2/19.
- Fabian 4/2-4/27 vacation (then gone).