Agenda/Minutes of the VIS Meeting on 2017/11/10

2017/11/10 13:30 -

Participants:

Progress report

Schedule Chart

Type-A : (PDF,MPP)

Type-B: (PDF,MPP)

• Type-A:
• Type-B:
• Type-Bp:

Type-A (Takahashi)

Past week report

[X-end]

• Started evacuation on 1st.
• Established remort control of the stepper motors.
• Adjusted DC position of the IP.
• Measured transfer functions.

[Mitaka]

• Finished asembly of the BFs.
• Assembled the FRs for SF.
• Checked the ACCs and the drivers. They can work.

Plan for coming weeks

• 11/13 Shipping in Akeno. Preparation for the center area.
• 11/14 Delivery in Kamika. Transortation of the bridge frame.
• 11/17 Lifting of the items by MESCO.
• 11/15-17 Replacement of cables in X-end.

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

• We found the mirror slips and the tilt changes when the large force was applied.
  • It was observed both in PR2 and PR3.
  • In PR2 case: the guardian script was not proper. Since the DC control in GAS filter was turned off first when we turned the control off, the oplev beam went off from the QPD with the Oplev control was on. Therefore, the large force was applied on the IM.
  • In PR3 case: the AC power supply for the IO chassis was plugged out accidentally.

  • The WD threshold on IM stage may be too large. (But it seems not for GAS filters.) -> Request some modification on the coil drivers to AEL?

  • Should we slightly change the way to hang the mirror for SRs? (like putting a little bit of glue at the bottom to stop slipping...)

Plan for coming weeks

• Mirror position measurement
• Adjust the height of the optical table
• Close the PR2 and 3 tanks.

OMMT & OSTM (Ohishi)

Past week report

• Ordered AEL to make3 High Power Coil Drivers and 1 Satellite Box.

  • The appointed date of delivery is March 2018.

• Checked drawings of Type-C hanging jig.

Plan for coming weeks

• Check the existing parts and order missing parts of hanging jig.
• Check the drawings of glueing jig.

Watchdog system (Tanaka)

Past week report

*I want to start ordering mass production version.-->Waiting.

*Execution of the final version operation test for mass production -->Completed(Clear all operation test).

*Experiments in phase 2 and phase 3(However,only one 4ch WDS main box is to be tested).-->Waiting(Changing travel schedule).

*Designing and manufacturing testing tools for mass production equipment.-->Completed.

Plan for coming weeks

*Star of order related works.

*Operation test of the testing tool for mass production equipment.

*Business trip plan.--> I stay at Toyama on the 19th.And experiment in Kamioka from 20th to 22nd.

Other site works

• In the week of Nov. 13th: Fixing the water leaks around the BS area.
• Fire drill: Nov. 16 from 11AM - 12AM
• Commissioning Workshop: Nov. 27 to Dec. 1st

Safety

• Incidents:
• Foreseen risks
  • Type-A:
  • Type-B:
  • Type-Bp:

Discussion

Plan for the coming months

Travel Plans

• Travel (Week of 11/13):
  • Takahashi:
  • Okutomi:
  • Sato:
  • Ishizaki:
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Kozu (ICRR):
  • Arai (ICRR):
• Travel (Week of 11/20):
  • Takahashi:
  • Okutomi:
  • Sato:
  • Ishizaki:
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Kozu (ICRR):
  • Arai (ICRR):

Next meeting

On 2017/11/17(Fri)