|
Size: 2468
Comment:
|
Size: 3435
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 49: | Line 49: |
| * RM TF measured * The reason that we could not measure the TF well was the polarization of the PS response are different between the two. * EQ stop assembled and the BF has set * EQ stop poles got galling. One of the poles could not be removed. Sawada-san will help us to remove it next week. * BF GAS calibrated * Lots of troubles due to the cables. We need to order them ASAP. * IM hanged, balanced * Did many iteration. There were no reproducibility of the weight and the keystone height. Also the resonant frequency did not get lower than 0.5 Hz. * After we changed the cabling, f0 become ～0.45 Hz without changing the mass. Later we adjusted the mass so that the keystone height is about at the designed position. (f0 did not changed by changing the mass.) * Checked the parts and screws for PR2/PRM. * Parts used for iKAGRA PR2 preparation are missing. * Some screws are not enough. |
|
| Line 50: | Line 64: |
| * IRM hanging * BF assembly/cabling |
Agenda/Minutes of the VIS Meeting on 2017/4/14
2017/4/14 13:30 -
Participants:
Progress report
- Type-A:
- Type-B:
- Type-Bp:
Type-A (Takahashi)
Past week report
Installation in Y-end:
10th(Mon)
- Cabling between F2 and F3.
11th(Tue)
- Delivery of the items for X-end.
- Preparation for the transportation to X-end.
- Tuned the F2 again.
12th(Wed)
- Transportation of the items to X-end by MESCO with Ishizaki.
- Compressed the blades on the F2. Obtained the frequency less than 0.3Hz.
- Checked the FR of F2. The rage was +/- 2mm.
- Checked the cable connection and repaired some connectors.
- Dropped the ballast mass for F3 into the corrugate tube.
13th(Thu)
- Checked the receptacle on the cryo-payload for the 3.3m wire.
- Found and took the dropped ballast mass.
- Lifted down the EQ stop and put the end plate for the F2 onto the frame lock.
- Closed the chamber.
14th(Fri)
- Replacement of the hoist in Y-end.
Plan for coming weeks
- Clean the clean booth.
- Setting the F1.
- The wire for F2 is missing. It will be delivered on 24th.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
- RM TF measured
- The reason that we could not measure the TF well was the polarization of the PS response are different between the two.
- EQ stop assembled and the BF has set
- EQ stop poles got galling. One of the poles could not be removed. Sawada-san will help us to remove it next week.
- BF GAS calibrated
- Lots of troubles due to the cables. We need to order them ASAP.
- IM hanged, balanced
- Did many iteration. There were no reproducibility of the weight and the keystone height. Also the resonant frequency did not get lower than 0.5 Hz.
- After we changed the cabling, f0 become ～0.45 Hz without changing the mass. Later we adjusted the mass so that the keystone height is about at the designed position. (f0 did not changed by changing the mass.)
- Checked the parts and screws for PR2/PRM.
- Parts used for iKAGRA PR2 preparation are missing.
- Some screws are not enough.
Plan for coming weeks
- IRM hanging
- BF assembly/cabling
IMMT (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Plan for coming weeks
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
Travel Plans
- Travel (Week of 4/17):
- Takahashi: 17-21
- Shoda: 17-21
- Mark: 17-21
- Fabian: 17-21
- Okutomi: 17-21
- Fujii:
- Ishizaki: 17-21
- Hirata: 17-21
- Sato: 17-21
- Enzo: 17-21
- Sekiguchi(Hosei):17-21
- Hirayama(Hosei):17-21
- Perry: 17 - 21
- Ohishi:
- Tanaka:
- Travel (Week of 4/24):
- Takahashi:
- Shoda:
- Mark:
- Fabian:
- Okutomi:
- Fujii:
- Ishizaki:
- Hirata:
- Sato:
- Enzo:
- Ohishi:
- Tanaka:
- Perry:
- Sekiguchi(Hosei):
- Hirayama(Hosei):
Next meeting
On 2017/4/21(Fri)