= 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) * [[attachment:05_VIS-20151123.pdf|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 * 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. * 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 ([[attachment:event_report.xlsx|the form is here]]). *[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=4546|JGWDoc Hazardous event report]] * 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 -