|
Size: 2208
Comment:
|
Size: 3578
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 6: | Line 6: |
| ==== Report for week of 4/9 ==== * Mark glued prisms and magnet/standoff assemblies on the SR3. The SR3 needed to be raised in the box by 0.7 mm to make the prisms go on at the right height, which was done using M4 washers under the PEEK feet. * Mark glued ferromagnetic disks on the last 5 IM flags. This completes 2 sets, for SR3 and SRM. * Mark configured two pico motor drivers ordered by Takahashi-san as SR3-IM and SRM-BF. * Enzo and Kozu-kun finished preparing and calibrating the SF and BF for SR3 and almost entirely finished with those for SRM. * Hirata-san worked on building two IMs for SR3 and SRM. The SR3 one just needs to have flags attached and to be weighed; the SRM needs another few hours work. * Shoda-san worked on the design of the metal SRM, on the LBB ballast mass, and on the plans for testing the BS in bKAGRA Phase 1. ==== Plan for week of 4/16 ==== * Shoda-san, Fujii-kun at Mitaka * Tanioka-san at Kamioka Tue-Thu * Others at Kamioka full week * -- * Move SF and BF for SRM out of the way. * Check results of gluing. * Build 1xRM * Calibrate OSEMs. * Start SR3 Hang * Reset assembly frame crossbars to correct heights. * Center the optical table. * Align the assembly frame vertically. * Install IM ring and IM. * Hang optic. * Hang RM. * Cable RM OSEMs. ==== Plan for week of 4/23 ==== * Shoda-san, Tanioka-san at Mitaka * Hirata-san at Mitaka * Mark, Enzo, Fujii-kun, Kozu-kun at Kamioka * -- * Clean parts (cable clamp bases, etc, etc). * Observe KAGRA Phase 1 operations, assist if problems arise. * Continue SR3 hang. ==== Plan for week of 4/30 ==== * Golden Week! |
==== Report for week of 10/29 ==== * SRM * Enzo repaired some broken cables and made some long cables from shorter ones. We ultrasonically cleaned them at Toyama U, with help from Yamamoto-san. Enzo then reinforced the joins with EP30 9two cables) or heat shrink (one cable). * Hirata-san finished tuning the PI. It is now complete except for some PEEK cable clamp pieces which are expected next Monday. * Hirata-san wiped writing off the F0 and SF yoke magnets, and off the PI. * Hirata-san found we were running out of magnets and ordered more - we have almost enough (short by one) for the SF damper, but will need more for the LBB damper. * Fabian cabled and tested the BF cap picos. * Fabian routed all the cables up to the underside of the SF. He cabled and tested the SF LVDT and stepper. * We added the SF cap and weighed the SF/... section. We appear to have a good amount of load capacity margin. * We put receptacles and magnets on the SF damper ring. * SR2 * We opened the SR2 tank, borrowed a geophone for Fujii-kun's geophone test, and left the IP locked. * We gathered parts for the SR2 OL. We believe we have all the pieces we need except for an LED (the one originally allocated to SR2 is currently being used for pitch setting on SRM and we may need to steal it back). Akutsu-san wants to supervise us setting up the LED and receiver supports, so that will happen next week. * SR3 * Terrence visited for another week and made more measurements on the OL. * BS * We searched for the dog clamps that we had borrowed from AOS to serve as ballast for the BS LBB and returned them to the AOS pallet. * Electronics * Enzo analyzed the LPCD and worked out the resistors we need to get the drive current recommended for the IM-V OSEMs by Shoda-san. We brought back three LPCDs for modification. |
| Line 45: | Line 26: |
| * [[KAGRA/Subgroups/VIS/TypeB/March2018]] * [[KAGRA/Subgroups/VIS/TypeB/April2018]] |
|
| Line 49: | Line 28: |
| * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]] | * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779 Type B Schedule (SR)]] |
| Line 51: | Line 30: |
| ==== Vacation Info ==== * Fabian vacation, 3/26-4/27 (then gone). |
==== Plan for week of 11/4 ==== * Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Fri. ===== SRM ===== * Main sequence * Add magnets to SF damper. * Install #353 poles * Move NB-03 jacks down. * Crane PI into AF. * Install F0-SF rod (#331) and flying saucer. * Route SF/... cables up to underside of F0. * Do vertical height budget. * Adjust SF trim mass for balance and keystone height. * Cable/test IP LVDTs. * Cable/test IP FRs. * LBB * Move KOACH filters * Put LBB damper rings in tank. * Set tank jacks to nominal height. ==== Plan for week of 11/11 ==== * Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Fri. ===== SRM ===== * Unlock IP and center roughly. * Calibrate IP LVDTs. * Check/adjust alignment of SS. * Add arc weights and geophones (or extra mass equivalent to geophones). * Cable/test geophones. * Improve centering/tuning of IP and SS alignment. ==== Plan for week of 11/18 ==== * Friday 11/23 is Labor Thanksgiving Day. * Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Thu. ===== SRM ===== * Unlock IP and center roughly. * Calibrate IP LVDTs. * Check/adjust alignment of SS. * Add arc weights and geophones (or extra mass equivalent to geophones). * Cable/test geophones. * Improve centering/tuning of IP and SS alignment. * Crane into tank. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 10/29
- SRM
- Enzo repaired some broken cables and made some long cables from shorter ones. We ultrasonically cleaned them at Toyama U, with help from Yamamoto-san. Enzo then reinforced the joins with EP30 9two cables) or heat shrink (one cable).
- Hirata-san finished tuning the PI. It is now complete except for some PEEK cable clamp pieces which are expected next Monday.
- Hirata-san wiped writing off the F0 and SF yoke magnets, and off the PI.
- Hirata-san found we were running out of magnets and ordered more - we have almost enough (short by one) for the SF damper, but will need more for the LBB damper.
- Fabian cabled and tested the BF cap picos.
- Fabian routed all the cables up to the underside of the SF. He cabled and tested the SF LVDT and stepper.
- We added the SF cap and weighed the SF/... section. We appear to have a good amount of load capacity margin.
- We put receptacles and magnets on the SF damper ring.
- SR2
- We opened the SR2 tank, borrowed a geophone for Fujii-kun's geophone test, and left the IP locked.
- We gathered parts for the SR2 OL. We believe we have all the pieces we need except for an LED (the one originally allocated to SR2 is currently being used for pitch setting on SRM and we may need to steal it back). Akutsu-san wants to supervise us setting up the LED and receiver supports, so that will happen next week.
- SR3
- Terrence visited for another week and made more measurements on the OL.
- BS
- We searched for the dog clamps that we had borrowed from AOS to serve as ballast for the BS LBB and returned them to the AOS pallet.
- Electronics
- Enzo analyzed the LPCD and worked out the resistors we need to get the drive current recommended for the IM-V OSEMs by Shoda-san. We brought back three LPCDs for modification.
To-Do Lists, Schedule
Plan for week of 11/4
- Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Fri.
SRM
- Main sequence
- Add magnets to SF damper.
- Install #353 poles
- Move NB-03 jacks down.
- Crane PI into AF.
- Install F0-SF rod (#331) and flying saucer.
- Route SF/... cables up to underside of F0.
- Do vertical height budget.
- Adjust SF trim mass for balance and keystone height.
- Cable/test IP LVDTs.
- Cable/test IP FRs.
- LBB
- Move KOACH filters
- Put LBB damper rings in tank.
- Set tank jacks to nominal height.
Plan for week of 11/11
- Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Fri.
SRM
- Unlock IP and center roughly.
- Calibrate IP LVDTs.
- Check/adjust alignment of SS.
- Add arc weights and geophones (or extra mass equivalent to geophones).
- Cable/test geophones.
- Improve centering/tuning of IP and SS alignment.
Plan for week of 11/18
- Friday 11/23 is Labor Thanksgiving Day.
- Mark, Enzo, Hirata-san and Fabian at Kamioka Mon-Thu.
SRM
- Unlock IP and center roughly.
- Calibrate IP LVDTs.
- Check/adjust alignment of SS.
- Add arc weights and geophones (or extra mass equivalent to geophones).
- Cable/test geophones.
- Improve centering/tuning of IP and SS alignment.
- Crane into tank.