Contents
Agenda/Minutes
CRY+VIS Interface Meeting
Date: 2023/1/27 13:00-13:25
Participants: Takahashi, Node, Hirata, Kimura, Sato, Yokozawa, Mitsuhashi, Miyoki, Uchiyama, Washimi, Ushiba, Akutsu, Aso, Ikeda
Status
- Type-A: Test of IP control with ACCs in IX. Offload of F0 in IY
- Type-B:
- Type-Bp: TF measurement of BF.
- Type-C: Monitoring of the OMMT1/2/OSTM suspensions in 1/30-2/1.
Other items
- Oplev:
- ACC: IP control in IX.
- Commissioning:
- Vacuum system: Investigation of broken ISPs. Vent of the OMC chamber on 1/30.
- Heater control: Adjustment in IY.
- TMS:
Discussion
VIS Meeting
Date: 2023/1/20 13:30-13:50
Participants: Takahashi, Fabian, Mitsuhashi, Sato, Hirata, Tanaka, Ushiba, Uchiyama, Aso
Summary Report
Type-A
- IP control using accelerometers.
- Tested with the MPC for ITMX and the LPC for ITMY. The controls were successful. The noise spectra of the geophones became worse at frequencies higher than 1Hz.
- We plan to test with the HPCs in EX and EY to compare.
Type-B
Type-Bp
- Ushiba-san measured TF from the seismometer on ground and the BF Damper in longitudinal.
- The calculation of the inter-calibration factor between the seismometer and the BF Damper LVDT is ongoing. There's no result yet.
Type-C
Electronics
Control
Schedule
- Type-A: IP control with ACCs.
- Type-B/Bp: Vertical sensor correction.
- Type-C: Monitoring of the OMMT1/2/OSTM suspensions.
Safety
Discussion
Travel Plans
(Date in Kamioka)
The week from 1/30
- Fabian will be away on Friday 3rd of February.
Next meeting
- 2023/2/3(FRI) 13:30-