<> ---------- = VIS Meeting = Date: 2025/8/1 10:00-10:25 [[https://zoom.us/j/203743987|Zoom]] Participants: Sato, Yokozawa, Ushiba == Topics == === Type-A === * Offload during O4c. * It is necessary to offload the IPs as well as the GAS filters. * ACCs for the IP controls. * Evaluating the FLDACC with DGS in ATC ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16646|report]]). Ikeda-san recovered the DGS after the power outage. === Type-B/Bp === * IRM damper for Type-B. * Hirata-san is going to the manufacturing of the parts. The actuator coils are under winding. * Enclosure for the SG card in an independent box. * Tanaka-san made a prototype box. * IP for Type-Bp. * Started a design. === Type-C === * Active isolation table for OMC. * Sato-san asked the chamber maker for a plan to remake the chamber. The maker made a draft. * Sato-san designed [[attachment:New design_152-114_double-use.pdf|the new geophone pod]]. * Investigating the effects of cabling for the geophones. Some OP amps for the pre-amp. were evaluated ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16645|report]]). * Small Type-C suspensions with mini-GAS. === R&D === == Discussion == * FY2026 Kakenhi. * Hybrid low-frequency vibration isolation system toward ET. The submission deadline is Aug. 27th. == Next meeting == * 2025/8/29 10:00-