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KAGRA VIS Operations Manual
This page is for collecting useful information about the KAGRA Vibration Isolation Subsystem. The hope is that it will evolve into a full-fledged Operations Manual similar to that for LIGO (see https://awiki.ligo-wa.caltech.edu/aLIGO/Suspensions/OpsManual - needs LIGO.ORG privileges; see also https://dcc.ligo.org/E1200633).
Suspension Types
(from JGW-G1503737-v6, JGW-T1402265-v1)
Suspension types:
Test Mass Suspensions |
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BS and SR suspensions |
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PR Suspensions |
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Modecleaner Suspensions |
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Links to software subpages:
Building real-time models that run on DAQ front ends and drive suspensions (and other stuff) |
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Dataviewer - viewing live and past data in the time domain |
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Tool for monitoring and changing the state of suspensions (and other stuff) |
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Tool for editing filters used by realtime models |
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How to access DGS systems remotely |
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Monitor slowly changing signals |
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Utilities for setting up the software environment |
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Terminal commands |
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Tool for editing control screens |
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Backup and Restore Tool, for getting/setting real-time model control state |
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Tool to get state space models of suspensions |
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Fixes to random issues |
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INTERNAL ONLY. Webpage of the daily summary. |
Links to hardware subpages:
OSEMs - shadow sensor+voice coil units |
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Picomotors - used to drive pitch, roll and yaw adjustments in the payloads |
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Stepper motors, used to drive the GAS filter and IP fishing rods |
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Optical levers |
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Linear Variable Displacement Transformers, used in the GAS filters and IPs |
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Digital IO to switches in coil drivers etc |
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Temerature/Humidity Sensors |
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Drawings |
All subpages: