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Size: 2980
Comment:
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Size: 3279
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 58: | Line 58: |
* Thanks to Tanioka-san and Nagano-san (NICT), we have finished parts replacement of IMMT1. * We have replaced stainless screws in the intermediate mass with non-magnetic screws. * Measured transfer functions of length, pitch, and yaw and found no problem. |
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| Line 59: | Line 64: |
* Order some parts of OMMT. |
Agenda/Minutes of the VIS Meeting on 2018/6/15
2018/6/15 13:30 -
Participants:
Progress report
Schedule Chart
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-A (Takahashi)
Past week report
[Y-front]
- Mounted the BF onto the EQ stop. The DP was suspended from the BF.
- Tuned the BF. Compressed the all five blades. The tuned frequency was 0.24Hz at 198kg.
- Modified the FR for BF. The fixing point of blade was changed. The FR can cover the full range of keystone.
- Calibrated the LVDT for BF.
- Made the short cables for BF damper.
- Assembled the end plate for F3.
- Extended the EQ stop to the F3 stage. Attached the support plate for the BF damper.
- Assembled the FR for F3 with the new blades.
- Assembled the connector plates for F3. Attached them to the cup.
- Cabled for the LVDT-Actuator and the stepping motor for F3.
- Measured the weight of F3. It was 82.9kg.
- Mounted the F3 onto the EQ stop. The BF was suspended from the F3.
- Cabled between the BF and the F3.
- Tuned the F3. The tuned frequency was 0.31Hz with the additional load of 6kg.
- Checked the range of FR for BF. The FR can cover the full range of keystone.
[X-front]
- Set up the analog drivers in the rack.
- Checked the dimension of distance between the beam axis and the cross tube.
Plan for coming weeks
- Calibrate the LVDT for F3.
- Go to the F2 stage.
- Tune the TF in X-front.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
- Worked on Oplev diagonalization for PR2 and PR3.
- Coil balance of PR2 optic was adjusted
- PR3 IM and BF sensor matrices were also diagonalized.
- Working on decay time (w/ damping) measurement on PR3.
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
- Thanks to Tanioka-san and Nagano-san (NICT), we have finished parts replacement of IMMT1.
- We have replaced stainless screws in the intermediate mass with non-magnetic screws.
- Measured transfer functions of length, pitch, and yaw and found no problem.
Plan for coming weeks
- Order some parts of OMMT.
LVDT Driver (Tanaka)
Past week report
Plan for coming weeks
Other site works
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
Travel Plans
- Travel (Week of 6/18):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Terrence:
- Travel (Week of 6/25):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Terrence:
Next meeting
On 2018/6/22(Fri)