<> ---------- = VIS Meeting = Date: 2025/5/23 10:00-11:20 [[https://zoom.us/j/203743987|Zoom]] Participants: Aso, Sato, Yokozawa, Miyoki, Ushiba, Takahashi == Topics == === Type-A === * ACCs for the IP controls. * Evaluation of the FLDACC with DGS in ATC is ongoing. The present status is [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16646|here]]. === Type-B/Bp === * IRM damper for Type-B. * The design work is ongoing by Hirata-san. The updated design is [[https://naoacjp-my.sharepoint.com/personal/naoatsu_hirata_nao_ac_jp/_layouts/15/onedrive.aspx?id=%2Fpersonal%2Fnaoatsu%5Fhirata%5Fnao%5Fac%5Fjp%2FDocuments%2FShare%2F250516%5FIRM%E3%83%80%E3%83%B3%E3%83%91%E3%83%BC%E8%B3%87%E6%96%99%5F%E9%AB%98%E6%A9%8B%E3%81%95%E3%82%93&ct=1747887714124&or=OWA%2DNT%2DMail&cid=b9720ca4%2Db1c1%2D4c23%2D61d0%2D71dc8a30441f&ga=1|here]]. The efficiency of the actuator was measured ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16608|report]]). * Enclosure for the SG card in an independent box. * Tanaka-san made a prototype box. A 1U panel was prepared to mount the box. * IP for Type-Bp. === Type-C === * Active isolation table for OMC. * The review was held on May 8th. * The new geophone pre-amp. was evaluated ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16645|report]]). * We are finding a substitute for the L-4C geophone. There are some candidates ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16691|report]]). * Small Type-C suspensions with mini-GAS. === R&D === == Discussion == == Next meeting == * 2025/6/6 10:00-