Contents
VIS Meeting
Date: 2025/8/1 10:00-10:25
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 (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 the new geophone pod.
Investigating the effects of cabling for the geophones. Some OP amps for the pre-amp. were evaluated (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-
 
