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

Suspension types:

Links to software subpages:

SVN	The software that does version control on key directories such as `userapps`
Simulink	Building real-time models that run on DAQ front ends and drive suspensions (and other systems)
DV	Dataviewer - viewing live and past data in the time domain
diag/diaggui	Diagnostics Test Tools (a.k.a., DTT) spectral analysis and transfer functions of live data
StripTool	Monitor slowly changing signals
Guardian	Tool for monitoring and changing the state of suspensions (and other systems)
SDF	Tool for checking if the setting of suspensions and other systems are in the expected state.
vistools.py	Python module supporting suspension access in the Guardian and also usable as a Unix CLI utility
Foton	Tool for editing filters used by realtime models
Remote	How to access DGS systems remotely
cdscfg	Utilities for setting up the software environment
CommandLineUtils	Terminal commands
MEDM	Motif Editor and Display Manager - tool for editing control screens
BURT	Backup and Restore Tool, for getting/setting real-time model control state
SUMCON	SUspension Model CONstructor - Mathematica program to create dynamical models of suspensions
Suspension Control Modeling	Tool to get state space models of suspensions
Troubleshooting	Fixes to random issues
Daily Summary	INTERNAL ONLY. Webpage of the daily summary.
Auto-measurement	How to run the transfer function measurement automatically.
VisualStudioCode	Microsoft Visual Studio Code SSH Setting.
UsageGitCommand	Usage of Git Command.
AutoBuild	AutoBuild & GUI tools.

Links to hardware subpages:

OSEMs	OSEMs - shadow sensor+voice coil units
Pico	Picomotors - used to drive pitch, roll and yaw adjustments in the payloads
Steppers	Stepper motors, used to drive the GAS filter and IP fishing rods
OpLev	Optical levers
LVDT	Linear Variable Displacement Transformers, used in the GAS filters and IPs
DIO	Digital IO to switches in coil drivers etc
Thermometers	Temerature/Humidity Sensors
Drawings	Drawings
Fishing rods	Status of fishing rods

Links to procedure subpages:

Health Check	confirm a suspension is healthy
Pumpdown and Venting	keep a suspension healthy during pumpdown etc

All subpages: