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   * Took TF data from the TM-H1 coil output to the voltage and current monitors and found that the response was approximately flat.    * Took TF data from the TM-H1 coil output to the voltage and current monitors and found that the response was approximately flat, meaning that meaningful TFs can be taken of the RM/BS stage with no DIO.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

  • Type B Past Week Summary, weeks of 9/19 and 9/26
    • Fabian, Mark and Liu-kun did BS installation at Kamioka:
      • Connected the DIO card to the LPCD. (Simulink model changes will be needed to make use of it.)
      • Took TF data from the TM-H1 coil output to the voltage and current monitors and found that the response was approximately flat, meaning that meaningful TFs can be taken of the RM/BS stage with no DIO.
      • Used the 90° prism and the optical lever to set the pitch of the RM to match the dummy BS.
      • Removed the RM trolley and added the bottom section of the security structure.
      • Lifted the IM/RM/BS with the load gauge adapter and load gauge and measured its mass.
    • Hirata-san:
      • Modified drawing of maraging rods for BS D1605706

      • Made 3D models of stub flag gluing jigs.
      • Made 3D models and 2D drawing of BS BF-IM hexagon cable clamp assembly and cone parts. D1605734

      • Washed parts and screws.
      • (For Type A) Assembled and adjusted blades of BF #9.
  • Longer term to-do list
    • Do Inventor assembly for SRx in chamber and on assembly frame (Hirata) - SR2/SR3 DONE, SRM ongoing.
      • Part "disk security" top has to be modified - screw positions do not match.
    • Write more of payload assembly procedure (Fabian) - ONGOING
    • Write more of BS Assembly Procedure E1504235, E1504235 draft (Mark) - ONGOING

    • Lower breadboard installation to be incorporated into the procedure document.
    • Work on BS simulation (Fabian)
    • Do BS Simulink model (Mark, Kokeyama) - TM/IM/BF level DONE
    • Do 2D drawings of SR2 parts (Hirata)
    • Redesign SRx IM wire clamps for larger prisms, remachined RMs
    • Order SRM/PRM parts (Hirata/Shoda)
    • Order SRx fasteners (Hirata)

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-07-29 13:18:56 by fabian.arellano)