<> = Agenda/Minutes = [[https://zoom.us/j/203743987|Zoom Meeting]] ---------- = CRY+VIS Interface Meeting = Date: 2023/8/18 13:00-13:38 Participants: Takahashi, Yokozawa, Uchiyama, Akutsu, Ushiba, Aso [[https://paper.dropbox.com/folder/show/AcceptanceTest-e.1gg8YzoPEhbTkrhvQwJ2zzo3dHVh5sJGieDgbm2n3h60mGqotBeE|Acceptance check document]] == Suspensions == * Type-A: Investigation of the ITMY oscillation. Height adjustment in IX, IY, and EY on 8/7,18. Update of the local control (V3 PD in EY is not fine). Test of the IP control with ACC in IY. * Type-B: Measurement of the DAC noise in SRM. Measurement on the sensor correction in SR2. * Type-Bp: Measurement for the optimization of damping control in PR2. * Type-C: Health check of the IMMT2 suspension. == Other items == * Oplev: Investigation of the MNV Oplev in EY. * ACC: Test of the IP control with ACCs in IY. * Commissioning: * Vacuum system: ISP trouble. ISPs were switched to TMPs in Y-arm. The temperature of the duct shield in EX increased. Turned on TMPs around EX. Consider inter lock of GVs. * Heater control: * TMS: == Post O4a == * Measurements of the DAC noise: Type-C. * Measurements on the sensor correction in SR2: Performed on 8/15. * Optimization of the damping control in PRs: Measurements 2 days, Test 3 days. * IP control with the ACCs: One more test is necessary. * In-vacuum accelerometer for IOO: Leak test of the pod is planed in early September. * Hight adjustments of Type-A in the cooling: [[https://paper.dropbox.com/doc/Hight-adjustment-in-cooling--B7ii3omB81JIm6khnBt_7fcaAQ-swWQ5h6M6lSs8yLp5D6dA|The procedure]]. * Temperature control for the Oplev: Installed the heater controller to IYC. EXC should be checked again. Prepare for IXC and EYC. * TM cooling. * IM heater. * Summary of cooling. == Discussion == ---------- = VIS Meeting = Date: 2023/8/18 10:0010:45 Participants: Takahashi, Mitsuhashi, Shibai, Ushiba, Tanaka == Summary Report == === Type-A === * Height adjustment in IX, IY, and EY on 8/7. * Test of the IP control with ACC in IY. === Type-B === * Measurement on the sensor correction in SR2. === Type-Bp === * Measurement for the optimization of damping control in PR2. === Type-C === * Health check of the IMMT2 suspension. * Damping of the OMC suspension. * Prototype test of the blade damper. * Design of the flexible pendulum damper. === Electronics === === Control === === R&D === * TAMA-SAS experiment: IP control. == Schedule == * TAMA-SAS experiment. * Test of the OMC damper. == Toward O5 == * [[https://paper.dropbox.com/doc/VIS-upgrade-toward-O5--B6qw57_1ZTHOEO_ZdAZi0hBjAQ-PJElGnRfe5jbNPeHWDHzi|Dropbox paper]] == Discussion == == Next meeting == * 2023/9/1 10:00-