|
Size: 1277
Comment:
|
Size: 1343
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 17: | Line 17: |
| * Enclosure for the SG card into an independent box. * Tanaka-san made a prototype box. 1U panel was prepared to mount the box. |
* Enclosure for the SG card in an independent box. * Tanaka-san made a prototype box. A 1U panel was prepared to mount the box. |
| Line 26: | Line 26: |
| * The new geophone pre-amp. boards were evaluated ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16645|report]]. * We are finding a substitute for the L4-C geophone. |
* The new geophone pre-amp. was evaluated ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=16645|report]]). * We are finding a substitute for the L4-C geophone. Candidates are GS-1(0.9M JPY), Torillium Compact(1.2M JPY), or handmade. |
| Line 35: | Line 35: |
| * 2025/4/25 10:00- | * 2025/5/23 10:00- |
Contents
VIS Meeting
Date: 2025/4/25 10:00-
Participants:
Topics
Type-A
- ACCs for the IP controls.
Evaluation of the FLDACC with DGS in ATC is ongoing. The present status is here.
Type-B/Bp
- Enclosure for the SG card in an independent box.
- Tanaka-san made a prototype box. A 1U panel was prepared to mount the box.
- Yaw damper for Type-B.
We have asked ATC about the design of the IRM damper as the item in 2025FY. The updated conceptual design is here. The inner diameter of the coil bobbin was changed to 20mm.
- IP for Type-Bp.
Type-C
- Active isolation table for OMC.
- Sato-san performed the FEM analysis on breadboard thickness.
The new geophone pre-amp. was evaluated (report).
- We are finding a substitute for the L4-C geophone. Candidates are GS-1(0.9M JPY), Torillium Compact(1.2M JPY), or handmade.
- Small Type-C suspensions with mini-GAS.
R&D
Discussion
Next meeting
- 2025/5/23 10:00-