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

2017-10-30

Main Assembly Sequence

• Realign OL.

• Cover OL with foil.

• Offload IP P&Y offsets to picos.

• Diagonalize OL.
• Spectra analysis of Oplev.
• Design, install angular lock servo using OL.
• Adjust gains and debug damping for IM OSEMs and GAS LVDTs.

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

• Spectra analysis of PI sensors (PI LVDTs and Geophones).
• Design PI Sensor blending filter.
• Subtract DC level of Geophones.
• Modify IP LVDT damping filters to include set point.
• Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
• Set all EQ stops to TBD clearance.
• Measure IP period; adjust ballast mass.
• TFs.

Etc

• Move stuff out of PR2 area.
• Tidy/label parts.
• Move safety bars from BS AF area to SR2 area.
• Close hole in floor above BS AF area.

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).
• Sort out SVN.
• Add support for comments to SUMCON.
• Create SUMCON model with values commented.

Medm screens

• Fix Oplev Damp screens.
• Enlarge TYPE B IP screen.
• Remove old OL stuff; add link to new OL stuff.
• Remove unused screens.

Documentation and Operation Manual

• Publish matrices for IP FRs.
• Publish matrices for BS PI sensors v4.
• Finish Foton operation Manual.
• Complete MEDM operation Manual.
• Pico Motor operation Manual.
• 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

• 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.
• Design and install GAS drift compensation filters.