Agenda/Minutes of the VIS Meeting on 2019/7/19

2019/7/19 13:30 -

Zoom Meeting

Participants:

Progress report

Type-A

Past week report

• Modified the HPCD for the ETMY TM to increase the current limit from 40 mA to 120 mA, limited by the hardware watchdog.
• The commissioning team was working on the damping filter for ETMY, the guardian for ETMX, and the DC control path.

Plan for coming weeks

Type B

Past week report

Plan for coming weeks

Type-Bp

Past week report

• BFH output: klog

• Working on updating noise-budgeting tool.

Plan for coming weeks

OMMT & OSTM (Takahashi)

Past week report

• Checked the stock of OSEMs. 9 of 17 OSEMs are available, but evaluation is necessary.
• Confirmed some dimensions on the present OSTM. The height of the breadboards was consistent with the design one. 10mm spacer is necessary.
• Ordered the modification parts for the mirror gluing jig and the standoffs.

Plan for coming weeks

VIS electronics

Past week report

Plan for coming weeks

Other site works

Safety

• Incidents:

Discussion

• Data management
  • The directory structure of the auto-measurement is different between each types of suspensions.
    • Script files

      • TypeAtower: /users/VISsvn/TypeAtower/scripts
        TypeApayload: /users/VISsvn/TypeApayload/scripts
        TypeB: /kagra/Dropbox/Subsystems/VIS/TypeBData/scripts
        TypeBp: /users/VISsvn/TypeBp/scripts

    • Measured files

      • TypeAtower: /users/VISsvn/TypeAtower/(OPTIC)/Measurements/TF/Measurements/
        TypeApayload: /users/VISsvn/TypeApayload/(OPTIC)/TF/Measurements/
        TypeB: /kagra/Dropbox/Subsystems/VIS/TypeBData/(OPTIC)/TF/Measurements/
        TypeBp: /users/VISsvn/TypeBp/(OPTIC)/TF/Measurements/

    • And there are many junk files and directories that makes confusion.
  • Request from Commissioner

    • Unify the data structure so that they can easily look up the data. -> We will use /users/VISsvn or Dropbox.

    • They want to check the current situation (such as TFs) by one-click. -> Shoda proposes to make the 'latest' directory to store the latest results, where the data is automatically updated with the copies of the measurements when we run the auto-measurement script. Also add the summary plot there. ([[|sample]])

    • They also requested to make the templates for spectra of each guardian states (SAFE, DAMPED, ALIGNED, MISALIGNED).
  • template update campaign at some point?

Travel Plans

• Travel (Week of 7/22):
  • Takahashi:
  • Sato:
  • Hirata:
  • Shoda:
  • Fujii:
  • Tanaka:
  • Terrence:
• Travel (Week of 7/29):
  • Takahashi:
  • Sato:
  • Hirata:
  • Shoda:
  • Fujii:
  • Tanaka:

Next meeting

On 2019/7/26(Fri)