<> = Agenda/Minutes = [[https://zoom.us/j/203743987|Zoom Meeting]] ---------- = CRY+VIS Interface Meeting = Date: 2023/6/23 13:00-13:30 Participants: Takahashi, Miyaki, Uchiyama, Mitsuhashi, Ikeda, Ushiba, Akutsu, Yokozawa, Aso [[https://paper.dropbox.com/folder/show/AcceptanceTest-e.1gg8YzoPEhbTkrhvQwJ2zzo3dHVh5sJGieDgbm2n3h60mGqotBeE|Acceptance check document]] == Suspensions == * Type-A: Measurements of noise budget in ETMY, ETMX, ITMX, and ITMY. * Type-B: Measurements of noise budget in BS. * Type-Bp: Measurements of noise budget in PRM * Type-C: == Other items == * Oplev: * ACC: * Commissioning: * Vacuum system: * Heater control: * TMS: == Post O4a == * Measurements of the DAC noise: Every Friday from 7/7. * Measurements on the sensor correction in SR2: 1 night. * Optimization of the damping control in PRs: Measurements 2 days, Test 3 days. * IP control with the ACCs: After the CAL week. * In-vacuum accelerometer for IOO: Check the geophone pod on 6/27. * Hight adjustments of Type-A in the cooling. * Measurement of the drum-head modes: 6/28. * Check of the length Oplev: At the time of the laser replacement. * Noise budget of the suspensions: PR2/3, Type-C, tower in the next. * Temperature control for the Oplev: Preparing for the heater controller. Making the cables. * Check of the space in the OMC/IMMT chamber: Sato-san made drawings for OMC. == Discussion == ---------- = VIS Meeting = Date: 2023/6/23 10:00-11:00 Participants: Takahashi, Sato, Akutsu, Mitsuhashi, Tanaka, Ushiba, Aso == Summary Report == === Type-A === * Measured the noise budget in ETMY, ETMX, ITMX, and ITMY (GAS as well as cryo-payload). === Type-B === * Measured the noise budget in BS. === Type-Bp === * Measured the noise budget in PRM. === Type-C === === Electronics === === Control === === R&D === * Measured the resonant frequencies and the dependence in the center of gravity. * Transfer function in T-direction should be measured. === Toward O5 === * [[https://paper.dropbox.com/doc/VIS-upgrade-toward-O5--B6qw57_1ZTHOEO_ZdAZi0hBjAQ-PJElGnRfe5jbNPeHWDHzi|Dropbox paper]] == Schedule == * Noise budget. == Safety == == Discussion == * Damping of the OMC suspension. * Design of the blade damper. * Design of the flexible pendulum damper. == Next meeting == * 2023/7/7 10:00-