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

attachment:VIS Types By Optic 2015.pngattachment:Layout.png
(from JGW-G1503737-v6, JGW-T1402265-v1)

Suspension types:

Type A

Test Mass Suspensions

Type B

BS and SR suspensions

BS Data

SR2 Data

SR3 Data

SRM Data

Type Bp

PR Suspensions

Type C

Modecleaner Suspensions

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.

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:

KAGRA/Subgroups/VIS/OpsManual (last edited 2019-11-11 18:46:35 by fabian.arellano)