VIS Meeting on 2015/11/20
2015/10/30 13:00 - 16:00
Kamioka NAOJ Room + SeeVogh
Participants: Mark, Fabian, Takahashi, Aso, Akutsu, Hirata, Ohishi, Ishizaki, Fujii, Shoda, Okutomi, Raffaele
Schedule
- Schedule status (Aso)
- Latest schedule chart
PR
- Installation team organization change (Aso)
- A new team plan
- Team A: Takahashi, Shoda, Okutomi, Fujii
- Team B: Mark, Fabian, Ohishi, Shift worker ?
- Team B will start the preparation of the PR2 immediately
- A new team plan
- Test Hanging Status (Takahashi)
- BF load adjustment was done: optimal load = 53kg
EQ stop rods below the BF were wrong : EQ stop position was higher than the design -> lowered them by inserting spacers.
- Assembling IMRM: IMRM without OSEM was assembled.
- BF is already level
- Cabling: TM OSEMs and Picomotor are done. IM OSEMs, LVDT, picomotors and fishing rod needs to be done.
- A cable clamp to be attached to the suspension rod has a wrong size collet. Fabian will bring the proper collets from Mitaka.
- Payload weight issue
- We need to test the theory of mistaking BF#1 and #2.
- BF load check needs to be done at the ATC
- Send the BF#1 to Mitaka by 11/27 (Takahashi)
- Hirata and Saito (ATC) will measure the optimal load by 12/11. Takahashi will coordinate with ATC people.
- We need BF#1 to be back to Kamioka by 12/21
- Digital system (Okutomi, Fujii)
- OSEM signal can be seen in the digital system
- Roughly checked the actuation of the mirror by OSEM by changing the offset voltage
- Damping loop of the TM is now working.
- Having a problem with excitation signal injection: waiting for Miyakawa-san to fix it.
- Working on the MEDM screen improvement
- Also modifying the realtime model of PR3
- Traverser actuation check
- Vacuum compatible motors cannot be tested in air.
- We have a vacuum non-compatible motor, so we can check the motor rotation.
- Traverser cable has to be made (as a part of the cabling work)
- Clean work procedure (Aso)
- Particle count record: Shoda collected data, but don't know how to extract data. Takahashi will help it.
- PR2 preparation (Mark, Fabian)
- Made an inventory of the area.
- Identified missing items (needs to be bought).
- Clean area will be ready on Nov. 25
- PR CAD model and assembly drawings (Hirata)
- Done this week: Small hexagon + BF modification. Wire clamp
Remaining: assembly drawing with the inner frame -> need the yaw rotation angle information (Aso)
- Cable status (Takahashi)
Made a cable list -> Will upload it to Wiki with more information
- Call for shift for cable checking
- One student available on the week of 11/30
- Ask the student if he can come on the week of 12/7 (Takahashi)
- If the student is only available in the week of 11/30, Akutsu-kun can come to Kamioka on this week.
- Additional PR mirror box (Tatsumi):
- Waiting for delivery
- Production of additional PR winches (Akutsu)
- Ikenoue-san will try to deliver it by Dec 21.
- RM compensation mass
- Design status (Fabian): working on it now, but not yet finished. Will finish sometime this weekend.
- Order status (Takahashi): Haven't yet gotten a quotation. Will order early next week.
- RM EQ stop screw position (Hirata)
- ATC work (Hirata): Washed and arrived at Kamioka.
- Out sourcing (Takahashi): Will ask for quotation with the RM compensation mass. All the plates are already sent to Mitaka.
- PR Optical Bench (Akutsu)
- Got half screws instead of fully threaded ones.
- Stud bolts are available from BUMAX
- SDC provided a quotation for the fully threaded screws too. Will compare these options.
- OSEM assembly status (Akutsu)
- Newly designed flexible circuits will be delivered at the end of the next week
- Next week (from 11/24) plan
- Test hanging
- Tue: Adjust the IM level.
- Wed: Level IMRM and put OSEMs, adjust the alignment of the flags. OSEM cablings
- Thu: OSEM alignment
- Fri: Signal check
- Sat: If not finished
- PR2 preparation work
- Next week: Fabian and Ohishi-san will do inventory checking, move things into the clean area.
- Next next week: Alignment of the frames.
- Test hanging
- Week of ELITES meeting (11/30-12/4)
- Mon-Thu: Alignment of the assembly and hanging frame for PR2
- Remote transfer function measurements (test hanging)
- Travel (Week of 11/24)
- Takahashi: Full week
- Shoda: Full week
- Mark: not coming
- Fabian: (Full week)
- Okutomi: Full week
- Fujii: Full week
- Travel (Week of 11/30)
- Takahashi: not coming
- Shoda: not coming
- Mark: Mon-Thu
- Fabian: not coming
- Ishizaki: Mon-Thu
- Okutomi: not coming
- Fujii: not coming
BS
- CLIO BS
- In order to operate iKAGRA before the end of March 2016, SEO is considering the possibility of using CLIO BS instead of Type-B BS for iKAGRA.
- This idea will be discussed at the chief meeting 11/24
- BS related tasks have lower priority for the moment.
- BS Assembly Frame Design (Aso, Hirata)
- BS flag design (Mark, Fabian)
- BS gluing jigs (Tatsumi)
- Not enough crane height problem (Hirata, Saito)
- IP base clamp (Fabian)
- Bread board spring (Takahashi)
- BS clean bag (Aso)
ETM
- ETM installation procedure (Aso)
- Aso explained the basic concept of the ETM installation procedure
- A request from Mark is to make the assembly frame thinner so that we have more work space around.
- Aso will compile the design information and send it to Mirapro by 11/25
Other
- Watch dog system (Tanaka)
- no progress
- GAS blade inspection by Virgo (Takahashi)
- Waiting for shipping information: Takahashi-san will send Ando-san a reminder
- Safety at the site (Takahashi, Ishizaki)
- No incident
- Ishizaki-san presented a form for performing the fault tree analysis.
- People are encouraged to use this form when they have a safety incident (the form is here).
- Request to the ATC for the next year
- We need to tell ATC our requests for the next fiscal year.
- Possible tasks are:
- PRM and SRM recoil masses production: The deadline can be the end of the FY2016. Still need a rough schedule
- Type-A bottom filter production:
- Need to cut the blades. For this, we may want to check the optimal load of the SFs before deciding on the blade width of the BF.
- Checking the optimal load of SF at ATC is one of the big request candidate. We should tell ATC about this possibility.
- Takahashi-san will send a plan to Akutsu-kun
- JPS meeting talks
- VIS overview: Shoda
- Mechanics: Fujii
- Control: Okutomi
* Astronomy society meeting
- Fabian will give an overview talk
Next meeting
2015/11/27 (Fri) 13:30 -