|
Size: 3049
Comment:
|
Size: 3396
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 20: | Line 20: |
| * Just curiosity (YF): Do we have any chances to try to implement feed-forwarding at IP-stage in the commissioning break? * If we have a time period that no one uses the interferometer, maybe I feel I would like to try. |
|
| Line 45: | Line 49: |
| * just curiosity (YF): Should we calculate the required sensor noise level beforehand for the purpose of blending? |
Agenda/Minutes of the VIS Meeting on 2020/3/6
2020/3/6 14:00 -
Participants:
Progress report
Type-A
Past week report
Plan for coming weeks
- Just curiosity (YF): Do we have any chances to try to implement feed-forwarding at IP-stage in the commissioning break?
- If we have a time period that no one uses the interferometer, maybe I feel I would like to try.
Type B
Past week report
I uploaded a document in the JGWDoc website describing the intended work for Type-B suspensions in 2020: JGW-E2011534. The motivation was just to have source of clear information of what we have to do. It doesn't have to be limited to Type-B.
- Limits switches for F0 yaw stepper motor:
- Last week there was an uncertainty as to how we connected the exisitng F0 yaw stepper motors in SR suspensions; there was a discrepancy between the cabling diagram and what I remembered.
- We checked the documentation and we remembered Hirata-san improvised 50 cm cable assemblies with 1.5 mm plugs (Burndy) in one end and a male D-sub in the other, then we used a 2.5 m extension cable with female connectors in both ends to reach the flange (Type 2-2.5). Only four threads were connected.
For the work this year we will need, for Type-B only, 4 × 50 cm cable assemblies with eight 1.5 mm plugs (Burndy) in one and a male D-Sub connector in the other; additionally, we will require 1 × 2.5 m extension cable with female connectors in both ends for the BS, which doesn't have the yaw stepper motor.
Limit switches for SR IPs: it seems all the harware is connected and all we need to do is just to learn how to use them in software; is this statement correct?
- What's the status of the oplev boxes?
- Was there a problem with SR2 real-time model? I heard in the morning briefing today this was solved by Aso-san.
Plan for coming weeks
Type-Bp
Past week report
Plan for coming weeks
OMMT & OSTM
Past week report
Plan for coming weeks
VIS electronics
Past week report
Plan for coming weeks
Other site works
Safety
Discussion
Status of ACC development (Takahashi)
- just curiosity (YF): Should we calculate the required sensor noise level beforehand for the purpose of blending?
Travel Plans
- Travel (Week of 3/9):
- Takahashi:
- Sato:
- Hirata:
- Shoda:
- Fujii:
- Tanaka:
- Travel (Week of 3/16):
- Takahashi: 16-18
- Sato:
- Hirata:
- Shoda:
- Fujii:
- Tanaka:
Next meeting
On 2020/3/13(Fri)