Differences between revisions 194 and 196 (spanning 2 versions)
⇤ ← Revision 194 as of 2018-05-01 17:31:05 →
Size: 3619
Editor: MarkBarton
Comment:
← Revision 196 as of 2018-06-04 15:12:22 → ⇥
Size: 3398
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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 * Calibrate LEN OL
  * Ask commissioning team for window of opportunity.
  * Turn off TILT OL control.
  * Uncover breadboard.
  * Scan LEN QPD in horizontal and vertical while noting output.
  * Recenter LEN QPD.
  * Re-cover breadboard.
  * Re-engage TILT control.		  * Get picomotor drivers back on line.
 * Debug BS BIO connections, especially PI IP.
Line 38: Line 31:
  * Check IP BIO is working or not.
Line 89: Line 81:
  * Undo renumbering of IP items.   * --(Undo renumbering of IP items.)--

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

  • Get picomotor drivers back on line.
  • Debug BS BIO connections, especially PI IP.

Main Assembly Sequence

  • Necessary for phase-I★★★

    • Modify IP LVDT damping filters to include set point.

    • TFs.

    • EXCHANGE YAW/VERT FRs at F0

  • 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

Documentation and Operation Manual

  • Add useful info from Enzo's notebook to BSData.

Tasks Not To Forget

Major Tasks

  • Move safety bars from BS AF area to SR2 area.
  • Close hole in floor above BS AF area.
  • 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

  • Update BS Circuit diagram, D1503600
    • Make generic for BS+SRx??? No, there are some differences. Still we need to summarize.

    • Note removal of LED/PD on TM OSEMs.

    • Include information on assignment of channels to feedthrough positions.
    • Reflect gender-changers and non-flipping feedthrough adapters.
    • Reflect actual cable lengths.
    • Include LVDT pin size (1 mm).
    • Include Stepper pin size (1.6 mm).

    • Undo renumbering of IP items.

    • Page 10: "DIO Card # 0" should be "DIO Card # 1"

    • Include OutConfigBoards on OL page (Sheet 18).

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.

KAGRA/Subgroups/VIS/TypeB/ToDoBS (last edited 2019-01-04 15:21:23 by MarkBarton)