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Size: 2272
Comment:
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Size: 3292
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 15: | Line 15: |
[X-front] * Attached the additional FR blade to the BF. * Needed some try and errors due to some problems (low Q, FR range, height of blade). * Tuned the BF again. Optimal load was 197.1kg at 0.31Hz. The FR range was 7.5mm. * Closed the cap of BF. * Extended the EQ stop to the F3 stage. * Lifted down the DP into the corrugate tube. * Set the F3 onto the end plate. maraging wire was hooked to the receptacles. * Tuned the F3 to 0.31Hz initially. * The optimal load was changed by closing the cap and hunging the F3. * Finally the frequency was 0.27Hz reducing the weight by 0.4kg. * Checked the range of FR in F3. It was 13.5mm. * Calibrated the LVDT in F3. * Started cabling between the BF and the F3. |
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| Line 16: | Line 32: |
[Next week] * Cable between the BF and the F3. * Lift down the BF into the corrugate tube. * Go to the F2 stage. [Week of March 5] * Vent the EXV chamber on 5th. * Remove the IXV DP on 6th. * Insert the maraging wire for Cryo-payload with cables. |
Agenda/Minutes of the VIS Meeting on 2018/2/16
2018/2/23 13:30 -
Participants:
Progress report
Schedule Chart
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-A (Takahashi)
Past week report
[X-front]
- Attached the additional FR blade to the BF.
- Needed some try and errors due to some problems (low Q, FR range, height of blade).
- Tuned the BF again. Optimal load was 197.1kg at 0.31Hz. The FR range was 7.5mm.
- Closed the cap of BF.
- Extended the EQ stop to the F3 stage.
- Lifted down the DP into the corrugate tube.
- Set the F3 onto the end plate. maraging wire was hooked to the receptacles.
- Tuned the F3 to 0.31Hz initially.
- The optimal load was changed by closing the cap and hunging the F3.
- Finally the frequency was 0.27Hz reducing the weight by 0.4kg.
- Checked the range of FR in F3. It was 13.5mm.
- Calibrated the LVDT in F3.
- Started cabling between the BF and the F3.
Plan for coming weeks
[Next week]
- Cable between the BF and the F3.
- Lift down the BF into the corrugate tube.
- Go to the F2 stage.
[Week of March 5]
- Vent the EXV chamber on 5th.
- Remove the IXV DP on 6th.
- Insert the maraging wire for Cryo-payload with cables.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
- OSEM test
- Removed a magnet from OSEM and measured response.
- It seemed that PD or LED inside OSEM has weak magnetic feature.
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Preparation for assembly of mass products.-->Ongoing.
Adjustment and approval to vendors(Implementation adjustments and approvals for circuit boards.)-->
There is no delivery.-->Contacting the vendor.
Plan for coming weeks
- Preparation for assembly of mass products.
- Adjustment and approval to vendors(Implementation adjustments and approvals for circuit boards.)
Other site works
- 2/26 - 3/9 Construction of the walls to isolate the arms better (for cleanliness)
- 3/12 - 3/16 Installation of the control systems for the large GVs
- 3/12 - Center area: preparation for pump down: connecting ducts.
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
- Center area pump down
- PR2/3 height adjustment
Travel Plans
- Travel (Week of 2/26):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Fabian:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Travel (Week of 3/5):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Fabian:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
Next meeting
On 2018/3/2(Fri)
VIS Meeting in Mitaka: 3/16