<> = Agenda/Minutes = [[https://zoom.us/j/203743987|Zoom Meeting]] ---------- = CRY+VIS Interface Meeting = Date: 2023/2/17 13:00-13:10 Participants: Takahashi, Mitsuhashi, Ikeda, Sato, Kimura, Miyoki, Aso, Yasui, Hirata, Yokozawa, Ushiba [[https://paper.dropbox.com/folder/show/AcceptanceTest-e.1gg8YzoPEhbTkrhvQwJ2zzo3dHVh5sJGieDgbm2n3h60mGqotBeE|Acceptance check document]] == Status == * Type-A: Investigation of ACCs in EY. * Type-B: * Type-Bp: Sensor correction in PR3. * Type-C: == Other items == * Oplev: * ACC: Replacement of the coil driver in EY was postponed. * Commissioning: * Vacuum system: Switched from the TMP to the ISP in SRM. * Heater control: * TMS: Covering in TMSY on 2-3 March. == Discussion == ---------- = VIS Meeting = Date: 2023/2/17 13:30-13:55 Participants: Takahashi, Ushiba, Mitsuhashi, Fabian, Tanaka, Aso, Akutsu == Summary Report == === Type-A === * Replacement of the coil driver for ACCs in EY was postponed. A strange peak in the signal of ACC only is observed at 0.02Hz ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=23854|klog]]). === Type-B === === Type-Bp === * PR3: I calculated the inter-calibration factor between the seismometer on ground and the BF Damper in L. * PR2: I tried to do the same for PR2, but the data is very noisy, and I was not able to get a reliable transfer function fit. It would be useful to get data with higher coherence. === Type-C === === Electronics === * Tested a prototype pre-amp board for geophones using the spare geophone pod and the geophone distributor. The prototype board had the noise floor higher than the Nikhef one by one order at 1Hz ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=23996|klog]]). === Control === == Schedule == * Type-A: IP control with ACCs. * Type-B/Bp: Sensor correction for PR3 and PR2. * Type-C: == Safety == == Discussion == == Travel Plans == (Date in Kamioka) The week from 2/20 * Takahashi: 2/20-22 * Hirata: 2/22 The week from 2/27 * Aso: 2/27-28 == Next meeting == * 2023/2/24(FRI) 13:30-