|
Size: 3579
Comment:
|
Size: 2314
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 5: | Line 5: |
| ==== Report for the week of 4/8 ==== * Support of Type Bp * Mark made lots of Guardian improvements: * Used Guardian's timer functionality to drastically reduce the number of notifications during ramping. * Added new requestable states DCCTRL_ONLY and NEUTRAL (and associated transitional states) to facilitate testing. * Tidied up the code to use tabs consistently throughout for indentation. * Disabled the test for the IM-H coil driver WD (to work around the fact that only the relay in the chassis has been disabled, not the WD signals going to the BIO). * We opened the BS tank lid and offloaded a large IM-Y offset to F0-Y with manual adjustment of the broken yaw mechanism). * We opened the SR2 side doors and adjusted the V1 OSEM to mid-range. * Mark offloaded a large SR2 IM-Y offset to F0-Y. * Mark did health checks for BS, SR2 and SR3. * Fabian offloaded yaw from SRM and did the SRM health check. * Fabian updated the Python code for the stepper driver MEDM screen to reflect that two stepper drivers have different mappings to work around dead channels. * Fabian monitored pumpdown on Friday afternoon and will continue on Saturday. |
|
| Line 6: | Line 20: |
| === Report for week of 2/12 (February 12th) === ==== Report for week of 1/28 ==== * Etc * Mark inventoried lots of items and updated the [[KAGRA/Subgroups/VIS/TypeB/Status|Status]] page. * SR2 * Hirata-san helped with installing the obelisk on the LBB, and added counterweights to get the LBB level and at the right height for the first rough alignment. However the springs were still at or near the top stops, so he later pulled down the LBB with excess mass, locked the blades at the bottom of their range and reset the LBB rods and damping magnet ring, aiming off by 10 mm so that it would be correct when the LBB was allowed to rise to midrange on the blades. He left it pressed down for now so that Hirose-san could apply FC. Early next week he will release it and do the final ballasting. * Hirose-san applied and removed FC on both sides of the optic for cleanliness. * Mirapro hooked the LBB. * SR3 * Enzo installed IM damping filters. * Mark installed a BIO Converter for the stepper remote enable (which will eventually also be used for the WD). * Fabian researched buoyancy compensation and pre-applied as much as possible to SR3. The total compensation needed is 0.19 mm for F0, 0.48 mm for SF and 0.46 mm for BF, total 1.23 mm. 1.0 mm had been applied with the jacks. The initial plan was to apply the calculated amounts at each level but then offset F0 1.0 mm lower to undo the jack adjustment. However SF was stuck approximately 1 mm lower than it needed to end up, so the buoyancy correction for it will have to be done at F0, and F0 will end up quite close to nominal. * Fabian also offloaded the IM pico yaw adjustment done by Enomoto-kun-tachi to the F0 yaw stepper. This left the OSEMs well-centered, so we will not need to adjust them and the LBB can be released. * SRM * Enzo fixed the broken triple in-air pico adapter cable and we plugged it back in. * Fabian calibrated the F0 FR. * Enzo and Terrence installed the arc weights and geophones, tuned and centered the IP, and centered and calibrated the FRs. * Mirapro helped us with the camera viewport issue by giving us a gasket of the same type but a different brand from their stock, which snapped easily into place. We then installed the viewport on the tank. Kokeyama-san will help us add the camera and camera LAN cable next week. * Simon gave us all the remaining items for the SRM OL except the 3D stage for the LEN QPD. ==== Plan for week of 2/4 ==== * Mark, Enzo, Fabian, Terrence at Kamioka Mon-Fri. * Hirata-san at Kamioka Mon+TBD. * Etc * Split SR2, SR3 and SRM RT models. * Get rid of the power reel behind SRM and plug stuff into the new power point instead. * BS * Run BNC cables for stepper remote enable, plug into BIO, debug. * SR2 * Do buoyancy correction. * Install camera viewport. * Install camera. * Run BNC cables for stepper remote enable, plug into BIO, debug. * SR3 * Release LBB. * Ballast LBB. * Install camera viewport. * Install camera. * Debug stepper remote enable. * SRM * Install camera. * Ballast LBB. * Do buoyancy correction. * Set up OL. * Debug stepper remote enable. |
==== Plan for week of 4/15 ==== * Mark, Hirata-san at Kamioka Tue-Thu. * Fabian at Kamioka Mon-Wed. * All at f2f Meeting 4/19-21. * Post-pumpdown health checks. * Teach Hirata-san about the computer systems and control theory. * Work with Lucia to do blending of the IP LVDTs and geophones. * More Guardian improvements. * Update vistools.py (formerly LIGO sustools.py) for Type B and KAGRA, and have the TYPEB.py Guardian use it where appropriate. * Modify RT models and/or Guardian to revert to the SAFE state under control in all but the most extreme emergency situations (rather than suddenly shutting off all output). * Work on Type B paper. * Tidy up. * Gather and clean tools. * Gather and organize unused parts and fasteners. |
| Line 56: | Line 36: |
| * Constitution Day, 2/11. * Mark and Enzo at KIW in Perugia, 2/12-18. * Enzo vacation, 3/5. * Enzo et al. Farewell Party, 3/7. * Enzo at JPS then final vacation, 3/13-29 * Terrence's last day, 3/29. |
* Mark at Mitaka 4/15. * f2f 4/19 (Friday), 4/20, 4/21. * Terrence's next visit from 4/18. * Fabian's vacation 4/26 to 5/10. * Mark's US vacation from 5/22 to 6/11. * Mark's final day 6/28. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for the week of 4/8
- Support of Type Bp
- Mark made lots of Guardian improvements:
- Used Guardian's timer functionality to drastically reduce the number of notifications during ramping.
- Added new requestable states DCCTRL_ONLY and NEUTRAL (and associated transitional states) to facilitate testing.
- Tidied up the code to use tabs consistently throughout for indentation.
- Disabled the test for the IM-H coil driver WD (to work around the fact that only the relay in the chassis has been disabled, not the WD signals going to the BIO).
- Mark made lots of Guardian improvements:
- We opened the BS tank lid and offloaded a large IM-Y offset to F0-Y with manual adjustment of the broken yaw mechanism).
- We opened the SR2 side doors and adjusted the V1 OSEM to mid-range.
- Mark offloaded a large SR2 IM-Y offset to F0-Y.
- Mark did health checks for BS, SR2 and SR3.
- Fabian offloaded yaw from SRM and did the SRM health check.
- Fabian updated the Python code for the stepper driver MEDM screen to reflect that two stepper drivers have different mappings to work around dead channels.
- Fabian monitored pumpdown on Friday afternoon and will continue on Saturday.
Plan for week of 4/15
- Mark, Hirata-san at Kamioka Tue-Thu.
- Fabian at Kamioka Mon-Wed.
- All at f2f Meeting 4/19-21.
- Post-pumpdown health checks.
- Teach Hirata-san about the computer systems and control theory.
- Work with Lucia to do blending of the IP LVDTs and geophones.
- More Guardian improvements.
- Update vistools.py (formerly LIGO sustools.py) for Type B and KAGRA, and have the TYPEB.py Guardian use it where appropriate.
- Modify RT models and/or Guardian to revert to the SAFE state under control in all but the most extreme emergency situations (rather than suddenly shutting off all output).
- Work on Type B paper.
- Tidy up.
- Gather and clean tools.
- Gather and organize unused parts and fasteners.
Vacation/Travel Info
- Mark at Mitaka 4/15.
- f2f 4/19 (Friday), 4/20, 4/21.
- Terrence's next visit from 4/18.
- Fabian's vacation 4/26 to 5/10.
- Mark's US vacation from 5/22 to 6/11.
- Mark's final day 6/28.