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VIS (IX)
ryutaro.takahashi - 20:18 Tuesday 09 February 2021 (15968) Print this report
Connection to cryo-payload

[Takahashi, Miyo, Sato, Horiuchi + CRY]

The cryo-payload was connected to the BF.

  1. Replaced the signal generator to the add-on board for the LVDT driver. Adjusted the amplitude so as to keep the last one (6.45Vpp in REF).
  2. Pushed down the F0 keystone by 2.4cm. The height of BF went to 78/76/70mm.
  3. The cryo-payload was connected to the maraging wire by the CRY team.
  4. Connected the cables toward the top onto the side plates of BF.
  5. Assembled back the LVDT coils for the BF damper.
  6. Addjusted the tilt of BF. The 440-g ballast was reallocated (not yet fixed). The height of BF became 74/74/74mm.
  7. Mounted the geophone pods on the IP table. The locations are #24 at ACC1, #25 at ACC2, and #29 at ACC3 (refer IP map).
Comments to this report:
ryutaro.takahashi - 12:44 Wednesday 10 February 2021 (15974) Print this report

Fixed the ballast on the BF with the screws.

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