VIS Type B Near Term To-Do List

Archived To-Do Items

Every Week

Coming Weeks

Preparation for Real BS Hang

Preparation for SR Installation

Every Week

Facilities

• Vacuum and roll floor.
• Wipe ladders.
• Tidy tools, parts.

• Get stuff from ../WishList

2017-08-16

Facilities

• Move cardboard box with old BF to storage.

• Tidy up Hirata-san's stuff in genkan of cleanbooth.

Design/Documentation/Planning

• LBB ballast mass.
  • Research real payload.
  • Do improved mass budget.
• Update BS Install Procedure with screenshots from new on-assembly-frame 3D CAD.

Electronics

• Return spare two Type5-2.2 cables to Sato-san's store.

• Recable/test BF LVDT.

• Rip out remaining old in-air cabling.

• Lay new in-air cabling.
• Reinstall LVDT chassis.

Main Assembly

• Do final trim of IM/RM/TM.
• Remove LBB blade assemblies from PI.
• Remove LBB blades from holders.
• Remove LBB rings.
• Send rings for recleaning.

Time permitting

Real BS Hang Tasks

Major Tasks

• Finish assembly drawing for LBB and LBB damper ring and post on JGWDoc (Hirata-san).
• Get pico drive screens fixed (Miyo-kun)
• Final ballast mass production for BF and SF (Hirata-san). (have quotes)
• Design of receptacles for rods with 8 mm heads.
• Possible rebuild of BF and/or SF
  • Set up build/test stand for filters.
  • Get filter test weights.
  • Find spare BF blade(s).
• Reclean stuff:
  • PI (remove Kapton tape etc, etc).
  • LLB damper stuff, especially Cu segments.
• Calibrate PI vertical LVDT.
• Set yoke on PI vertical LVDT (if necessary).
• Calibrate PI horizontal LVDTs.

Minor Tasks

Mechanical

• Get clean bag laundered.
• Put pointy-tipped screw in RM trolley for BS

• Swap out temporary ballast mass in BF, SF.

• Return/replace borrowed parts:
  • Lock washers for LBB dampers
  • Temporary ballast mass (dog clamps) in BF.
  • Wide-mouth OSEMs from RM to Akutsu-san

• Adjust height of crossbars below BF.

• If possible, fix galled pole in BF level of EQ stop.

• Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match.

• Check inside SF for lost ruler.

• Tighten PI yaw return spring.
• Get Cu O-rings for feedthroughs.

Electrical

• Decide final in-vacuum and in-air cable routing (Enzo).
• Calibrate all LVDTs (Enzo, Mark).
• Remove cling wrap in BF and install vacuum-compatible heat shrink.
• Remove cling wrap on connections for PI vertical stepper and install vacuum-compatible heat shrink (needs wider diameter heat shrink or smaller pins).
• Rewire PI horizontal steppers with vacuum-compatible cable.
• Adjust yoke on BF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height).

Real-time and SUMCON models

• Create SUMCON models for full BS and major installation milestones.

• Create controls design description (cf LIGO-T1100378).

• Make table of ADC/DAC assignments and check for consistency with D1503600 and k1visbs (Enzo, Mark)
• Understand/document/debug Kokeyama-san's DIO stuff.
• Measure LPCD and HPCD output filter response.
• Design and install software compensation filters for LPCD and HPCD output filters.
• Design and install GAS drift compensation filters.
• Create a proper DAC Monitor MEDM screen.
• Improve ADC Monitor MEDM screen.

SR Prep Tasks

Design/Purchasing

• Do rough mass budget for SR2/SR3/SRM.
• Design SR assembly frame.
• Design final SF ballast masses (Fabian).

Order now

• Bread boards for SR -> すぐ見積り依頼

• Include installation work in the contract
• Total budget = 5MJPY

• PEEK collet for "Small hexagon"(cable clamp) -> すぐ見積り依頼

Need simple design changes

• SUS wires(3 types) for the LBB

  • Change the length -> すぐ見積り依頼

• Receptacles for Bread board damper
  • There is a mistake in the PROMEC drawing.
  • Hirata-san will make a new 2D drawing
• IM wire clamps for SR
  • Need to change the height

• SR assembly frame -> 月曜日に見積り依頼

  • Mark is checking the design from Fabian
  • We should order the parts necessary to modify the BS assembly frame to the SR2 assembly frame

Need Fabian's input

• Cable clamps for BF,SF and PI -> 方式を決める

  • Design change for the PI clamps, because the SR PIs are NIKHEF ones.
• Ballast masses for BF and SF
• 製作に2週間程度
• 10月頭にTop Filterの最適荷重を実測。それに合わせて発注。それまでにデザインは用意しておく。

  • 測定に必要な物品の準備 -> 月曜日に高橋さんと相談

Need more discussion/checks

• Blade spring assembly for LBB
  • Check the load of the LBB and decide the design load of the springs
  • Correct the length

  • Scale the width of the current blades to design the new blades -> 高橋さんと相談

    • SR用LBBの重さを確認
• Bread board damper rings

  • Need to check whether we can put a full ring into the chamber from the side flanges or not. -> 至急確認

Electronics

• Get cables/cards for SR3:
  • 5 DSub-37 cables (tent)
  • 5 DSub-15M to DSub-9M adapter cables (tent)
  • 3 DIO cards (tent)
  • 2 DSub-9 FF gender benders (for LVDTs)
  • extra ADC card(s)?
  • extra DAC card(s)?
  • BNC-LEMO adapter (for LVDTs)
  • etc