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Size: 856
Comment:
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Size: 2178
Comment:
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| 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 |
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| * ETMX F1 GAS | * ETMX F2 GAS |
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| * ITMY BF Yaw pico | |
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| * PR2 TM 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). == Electrical Repair == * Signal generator cards for LVDT drivers. * Renovate unfixed Dsub connections around IP. (Type-A, EY only, [[https://www.dropbox.com/s/iatmy863o6cq7js/Renovate%20EY%20In-vacuum%20cabling.pdf?dl=0|memo]] ) * One PTFE cable should be swapped. |
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| * ACCs for inertial damping | * ACCs for inertial damping. * New design of GAS filters considering 40kg TM ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10148|Memo]]). * Add limit swich on vertical fishing rod.[[attachment:FR BF unit_idea.pdf]] * For Tyep-A, add a damping system for the 2nd-yaw-mode, where BF is at the node. == Electrical Upgrade == * Connect the Release-sensor's signal to the digital system. (Type-A, If necessary.) * PR3 traverser in-vac cabling * [Type-A] add another oplev at MN-stage in order to degenerate P and R coupling. |
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
- ITMY BF Yaw pico
- 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).
Electrical Repair
- Signal generator cards for LVDT drivers.
Renovate unfixed Dsub connections around IP. (Type-A, EY only, memo )
- One PTFE cable should be swapped.
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).
Add limit swich on vertical fishing rod.FR BF unit_idea.pdf
- For Tyep-A, add a damping system for the 2nd-yaw-mode, where BF is at the node.
Electrical Upgrade
- Connect the Release-sensor's signal to the digital system. (Type-A, If necessary.)
- PR3 traverser in-vac cabling
- [Type-A] add another oplev at MN-stage in order to degenerate P and R coupling.