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| ==== Plan for coming weeks ==== | * PR2: * one channel of LVDT driver (for BF-LVDT-V2) did not seem to work properly. That board will be replaced. * the satellite boxes looked still old type. They are to be replaced and checked. * PR3: * the suspension became healthy again on Wed in terms of visual inspection. * all the transfer functions will be measured in this weekend. * PRM: * on Wed, we kicked IM and the followings were changed, and then we had to revisit the Tuesday’s starting point: * SF-GAS * BF-body height, its tilt in roll, its torsion in yaw. * we already compensated the BF-body tilt by the picomotor on the BF-cap. Then the IM-yaw was tuned along with OSEM signals (and thus the QPD does not have the light on it now). * we will compensate the yaw shift by the traverser so that the OpLev light is on the QPD. * after these work, all the transfer functions will be measured. * the satellite boxes looked still old type. They are to be replaced and checked. ==== (Plan for coming weeks) ==== |
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| * Fujii: | * Fujii: 11 - 13th |
Agenda/Minutes of the VIS Meeting on 2019/3/8
2019/3/8 13:30 -
Participants:
Progress report
Schedule Chart
Site work schedule: [[|XLSX]]
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-C: (XLSX)
Type-A (Takahashi)
Past week report
[X-end]
- The LVDT drivers have a steep line at 548Hz (by Lucia and Fujii).
- The transfer functions of filters showed that the suspension is not healthy (by Lucia),
- Checked the BF with opening the cross chamber. Any primary coils for BF damper were not touching to the secondary coils (by Tomaru).
- The F0 keystone is too low. The F1-F3 keystones are closing to the upper receptacles.
Plan for coming weeks
- Recover the problem in X-end (Mar. 11-12).
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
- PR2:
- one channel of LVDT driver (for BF-LVDT-V2) did not seem to work properly. That board will be replaced.
- the satellite boxes looked still old type. They are to be replaced and checked.
- PR3:
- the suspension became healthy again on Wed in terms of visual inspection.
- all the transfer functions will be measured in this weekend.
- PRM:
- on Wed, we kicked IM and the followings were changed, and then we had to revisit the Tuesday’s starting point:
- SF-GAS
- BF-body height, its tilt in roll, its torsion in yaw.
- we already compensated the BF-body tilt by the picomotor on the BF-cap. Then the IM-yaw was tuned along with OSEM signals (and thus the QPD does not have the light on it now).
we will compensate the yaw shift by the traverser so that the OpLev light is on the QPD.
- after these work, all the transfer functions will be measured.
- the satellite boxes looked still old type. They are to be replaced and checked.
- on Wed, we kicked IM and the followings were changed, and then we had to revisit the Tuesday’s starting point:
(Plan for coming weeks)
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
VIS electronics (Tanaka)
Past week report
Plan for coming weeks
Other site works
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
Discussion
Travel Plans
- Travel (Week of 3/11):
- Takahashi:
- Okutomi:
- Sato:
- Lucia:
- Fabian:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii: 11 - 13th
- Tanioka:
- Tanaka:
- Terrence
- Travel (Week of 3/18):
- Takahashi:
- Okutomi:
- Sato:
- Lucia:
- Fabian:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Terrence
Next meeting
On 2019/3/15(Fri)