VIS Type B BS Near Term To-Do List

Archived BS To-Do Items

SR To-Do Items

Every Week

Coming Weeks

Every Week

Facilities

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

• Get stuff from ../WishList

ASAP

Main Assembly Sequence

• Necessary for phase-I★★★

  • Modify IP LVDT damping filters to include set point.

  • TFs.

  • Check IP BIO is working or not.
• Necessary for phase-II★★

  • Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553)

  • Design PI Sensor blending filter.
  • Re-calibrate F0 GAS LVDT
  • Tune the LVDT sensitivity
  • Measure IP period; adjust ballast mass.
• At some point (remotely)★
  • Improve OL offloading.
  • Improve GAS offloading.
  • Spectral analysis of Oplev.
  • Design, install angular lock servo using OL. (Almost done for phase-I)
  • Adjust gains and debug damping for IM OSEMs and GAS LVDTs. (Almost done for phase-I)
  • Subtract DC level of Geophones.
  • Spectra analysis of PI sensors (PI LVDTs and Geophones).
  • Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
  • Set all EQ stops to TBD clearance.
  • Modify the model for IP coil driver control

Software

• Update real-time model to number channels from #0.
• Do better interface to IP steppers (make a wrapper for Miyo-kun's driver which includes geometry matrix; adapt Shoda-san's version).

• Write a guardian.

• Sort out SVN.
• Create SUMCON model with values commented.

Medm screens

• Remove unused screens.

Documentation and Operation Manual

• Publish matrices for IP FRs.
• Publish matrices for BS PI sensors v4.
• Finish Foton Operation Manual page.
• Complete MEDM Operation Manual page.
• Pico Motor Operation Manual page.
• Add useful info from Enzo's notebook to BSData.

Design

• Finalize redesign of IP yaw adjuster.
• Design better F0 FR adjuster.
• Design LBB ballast mass.

Tasks Not To Forget

Major Tasks

• Move safety bars from BS AF area to SR2 area.
• Close hole in floor above BS AF area.
• Wipe any rust from around IP LVDTs.
• Update circuit diagram.
• (Time permitting) Try adding mass to IP.
• Update BS Install Procedure with screenshots from new on-assembly-frame 3D CAD.
• Finish assembly drawing for LBB and LBB damper ring and post on JGWDoc (Hirata-san).
• Figure out how to make PI yaw adjustment reliable.

Minor Tasks

Mechanical

• Put pointy-tipped screw in RM trolley for BS
• Return/replace borrowed parts:
  • Temporary ballast mass (dog clamps) in BF.

Electrical

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.