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| * I wrote a document about the procedure to replace the LVDT cards after a failure: [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12128|JGW-T2012128]]. * It was checked by Alessandro Betolini from Nikhef and he says the method is correct. He provided minor comments that have been incorported to the new version of the document. * He says they will review the design for ETpathfinder and that's our chance to give them feedback (i.e. Tanaka-san's findings and my concerns as a user). * Knowledge transfer from Tanaka-san to Alessandro would be greatly beneficial for KAGRA. If you think it's suitable, would it be possible for someone to organize this, please? * Tanaka-san will take some of our LVDT cards for hardware modification. * We need to survey those LVDT cards before he takes them away. '''When will we do this?''' * As far as I understand, given the old calibration factor, he has to give us a procedure to calculate a new calibration factor. '''Is this statement correct?''' * Before any other card breaks, we need to survey all of them. '''When will we do this?''' * Four hands are required for the measurements. '''For Type-B/Bp, Washimi-san and Fabian can do it'''. * After cleaning the PR area I have the impression '''we lost Hirose-san's LED lamps''' to check mirror cleanliness. |
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| * Monitoring for vent. Date: 19(only EXV), 22-25(practically 22-23). Charge: Miyo, Ikeda, Fabian, Takahashi | * Monitoring for vent. Date: 19(only EYV), 22-25(practically 22-23). Charge: Miyo, Ikeda, Fabian, Takahashi |
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Agenda/Minutes on 2020/10/16
CRY+VIS Interface Meeting
13:30-
Participants:
Cable bandling bellow BF.(Assy small hexagon for BF-CRYO.pdf)
- PF actuator
VIS Meeting
14:00-
Participants:
Progress report
General
I wrote a document about the procedure to replace the LVDT cards after a failure: JGW-T2012128.
- It was checked by Alessandro Betolini from Nikhef and he says the method is correct. He provided minor comments that have been incorported to the new version of the document.
- He says they will review the design for ETpathfinder and that's our chance to give them feedback (i.e. Tanaka-san's findings and my concerns as a user).
- Knowledge transfer from Tanaka-san to Alessandro would be greatly beneficial for KAGRA. If you think it's suitable, would it be possible for someone to organize this, please?
- Tanaka-san will take some of our LVDT cards for hardware modification.
We need to survey those LVDT cards before he takes them away. When will we do this?
As far as I understand, given the old calibration factor, he has to give us a procedure to calculate a new calibration factor. Is this statement correct?
Before any other card breaks, we need to survey all of them. When will we do this?
Four hands are required for the measurements. For Type-B/Bp, Washimi-san and Fabian can do it.
After cleaning the PR area I have the impression we lost Hirose-san's LED lamps to check mirror cleanliness.
Type-A
Type-B
Type-Bp
Type-C
Controls
Electronics
Towards O4
- RSE Trial was finished on Oct. 13th.
- Preparation work is on going.
- Monitoring for vent. Date: 19(only EYV), 22-25(practically 22-23). Charge: Miyo, Ikeda, Fabian, Takahashi
- Schedule.
- Procedure documents.
- Criteria in the acceptance test.
Safety
Discussion
Travel Plans
The week from 10/19
- Takahashi: 10/19-10/23
The week from 10/26
- Hirata: ?
Next meeting
- On 2020/10/23(Fri)