Differences between revisions 79 and 80
Revision 79 as of 2016-10-27 12:56:30
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Editor: MarkBarton
Comment:
Revision 80 as of 2016-11-03 15:16:08
Size: 1053
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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  * Fabian, Mark and Liu-kun did BS installation at Kamioka:
   * Debugged the issue with the BF keystone being tilted enough to cause rubbing on the yoke for the magnets. It was solved by moving the yoke ≈1 mm taking advantage of the oversized holes.
   * Measured the height of the payload as a function of trim mass. The BF spring seems to have a slightly lower load capacity and a rather higher spring constant than when it was remeasured by Hirata-san.
   * Removed IM trim mass to set the average height of the keystone to the CAD value.
   * Moved IM trim mass around to set the pitch of the dummy BS.
  * Hirata-san
   * TBD.
 
  * Mark updated the BS circuit diagram [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3600|D1503600]]:
   * Added information on the binary IO.
   * Renamed channels to conform to Okutomi-kun's new scheme.
   * Made the ADC/DAC channel assignment consistent and more logical.
   * Updated the stepper motor sections with info about the new driver chassis.
  * Mark and Hirata-san worked on collecting parts and tools that will be needed for cabling of the BS next week. (11 special-purpose cables need to be made for the picos/steppers/OSEMs/LVDT on the RM/IRM/IM/BF and, time permitting, 2 more for the SF.)
  * Mark worked on schedule.
  * Mark updated the installation procedure with lessons learned from the last few weeks.
  * Mark downloaded Hirata-san's Inventor model of the BS in the tank and starting thinking about installation of the suspension and lower bread board.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

  • Type B Past Week Summary
    • Mark updated the BS circuit diagram D1503600:

      • Added information on the binary IO.
      • Renamed channels to conform to Okutomi-kun's new scheme.
      • Made the ADC/DAC channel assignment consistent and more logical.
      • Updated the stepper motor sections with info about the new driver chassis.
    • Mark and Hirata-san worked on collecting parts and tools that will be needed for cabling of the BS next week. (11 special-purpose cables need to be made for the picos/steppers/OSEMs/LVDT on the RM/IRM/IM/BF and, time permitting, 2 more for the SF.)
    • Mark worked on schedule.
    • Mark updated the installation procedure with lessons learned from the last few weeks.
    • Mark downloaded Hirata-san's Inventor model of the BS in the tank and starting thinking about installation of the suspension and lower bread board.

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