Differences between revisions 16 and 17
Revision 16 as of 2019-04-26 15:06:44
Size: 1374
Comment:
Revision 17 as of 2019-05-17 10:27:47
Size: 1569
Editor: KokiOkutomi
Comment:
Deletions are marked like this. Additions are marked like this.
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 * (Semi) auto filter optimization using system identification  * Measurement-based suspension modeling with system identification
 * Optimized feedback based on a cost function
 * Situation-sensitive filter adaptation with peripheral environmental monitors
 * Robust mode for surfing earthquakes without lock loss

Ideas for VIS improvement/upgrade

Control

  • Inertial control for Type-B
  • Hierarchical control of Type-A
  • Organize tools for commissioners (auto-measurement, safe.snap, etc...)
  • Noise budgeting
  • Feedforward using seismometers
  • Auto health checking system
  • Measurement-based suspension modeling with system identification
  • Optimized feedback based on a cost function
  • Situation-sensitive filter adaptation with peripheral environmental monitors
  • Robust mode for surfing earthquakes without lock loss

Safety

  • Status monitor
  • Better watchdog

Mechanical Repair

  • ETMY GAS filters
  • ETMX F2 GAS
  • ITMX and ITMY F0 GAS
  • BS F0 Yaw stepper
  • PRM IM magnet polarization
  • PR2 TM magnet polarizatio
  • Fishing rod repair:
    • SR3 SF: it does not move (klog 8658).
    • SR3 BF: it does not allows us to move the keystone to zero (klog 8658).
    • BS SF: it does not allow us to move the keystone to zero (klog 8645).
    • BS F0: it does not allow us to move the keystone to zero (klog 8645).

Mechanical Upgrade

  • OSTM suspension
  • Jigs for removing the payload part of Type-B/Bp without disassembling everything
  • Rotate the cryopayload of Type A for easy access of the mirror (cleaning, repair, etc)
  • Optical Lever Covers
  • ACCs for inertial damping.
  • New design of GAS filters considering 40kg TM (Memo).

  • For Tyep-A, add a damping system for the 2nd-yaw-mode, where BF is at the node.

KAGRA/Subgroups/VIS/BrainStorm/ToDo2019 (last edited 2019-05-17 10:27:47 by KokiOkutomi)