Differences between revisions 205 and 365 (spanning 160 versions)

Vibration Isolation System (VIS)

Meetings	Management	Other subsystem interfaces	For Users	Apps
Weekly VIS meeting	Schedule	AEL interfaces	Bug Reports	SUMCON
Extraordinary meetings	Github Projects	DGS interfaces	Trouble Shooting	ModelPlotter
Old VISMeeting				AutoMeasurement
---	---	---	---	SuspensionControlModeling

Suspensions	Mechanics	Sensors	Actuators/Motors	Digital System	Control
Type-A	Pre-Isolator	Inertial Sensor	Voice coil actuator	RTModel	General concept
Type-B	GAS	LVDT	Solenoid actuator?	Guardian	Kontrol
Type-Bp	Magnetic damper	Photo Sensor	Picomotor	SDF	-
Type-C	Maraging wire	Optical Lever (OpLev)	Stepper motor	-	-
TMS-VIS	---	OSEM		-	-

Design	Detail Design	Installation	Commissioning	Operation	Future Upgrade
Suspension Design	CAD	Procedure	VIS Monitors	Manual	Upgrade
Actuator Design	Rack Layout	Misc.	HealthCheck	├ Picomotor	---
---	Cabling	Calibration	---	├ Fishing Rods	---
---	---	Diagonalization	---	├ Stepper Motor	---
---	---	Diagonalization	---	└	---
---	---	---	---	TypeA	---
---	---	---	---	TypeB	---
---	---	---	---	TypeBp	---
---	---	---	---	TypeC	---
---	---	---	---	TMS-VIS	---

Links, Misic.	Documents
Wiki SEI, SUS	VIS Introduction
Log SEI, LHO, LLO, Virgo
Photos

Requirements

VIS subgroup guarantee the following items;

Isolation performance: Does not contaminate the design sensitivity
Stability: Keep the above performance in anytime
Operability: Recover the all VIS system automatically

Detail descriptions are written in here: JGW-E2011930

$/!\$ [April 28. 2020] Miyo is cleaning up the VIS wiki pages. Progress is posted here.

-  ⇤ ← Revision 205 as of 2020-02-28 14:11:34 → 
  Size: 3816
  Editor: KokiOkutomi
  Comment:
+   ← Revision 365 as of 2020-08-26 09:24:03 → ⇥
  Size: 6146
  Editor: KousekiMiyo
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-= VIS =
----
'''V'''ibration '''I'''solation '''S'''ystem is the hardware infrastructure for the main optics in the KAGRA interferometer.
+= Vibration Isolation System (VIS) =
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-<<TableOfContents(3)>>
+||<#a31f52 style="color:#ffffff; text-align:center;"> '''Meetings'''||<#a31f52 style="color:#ffffff; text-align:center;"> '''Management'''||<#a31f52 style="color:#ffffff; text-align:center;"> '''Other subsystem interfaces''' ||<#a31f52 style="color:#ffffff; text-align:center;"> '''For Users'''||<#a31f52  style="color:#ffffff; text-align:center;"> '''Apps''' ||
||[[KAGRA/Subgroups/VIS/MeetingNAOJ|Weekly VIS meeting]] || [[KAGRA/Subgroups/VIS/Schedule|Schedule]]|| [[KAGRA/Subgroups/VIS/AELInterfaces|AEL interfaces]] ||[[KAGRA/Subgroups/VIS/BugReports|Bug Reports]] ||[[KAGRA/Subgroups/VIS/OpsManual/SUMCON|SUMCON]]||
||[[KAGRA/Subgroups/VIS/ExtraMeetings|Extraordinary meetings]] || [[https://github.com/orgs/gw-vis/projects|Github Projects]]|| [[KAGRA/Subgroups/VIS/DGSInterfaces|DGS interfaces]]   || [[KAGRA/Subgroups/VIS/TroubleShooting|Trouble Shooting]] || [[KAGRA/Subgroups/VIS/ModelPlotter|ModelPlotter]] ||
||[[KAGRA/Subgroups/VIS/OldVISMeetings|Old VISMeeting]] || || || || [[KAGRA/Subgroups/VIS/OpsManual/AutoMeasurement|AutoMeasurement]] ||
|| --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/SuspensionControlModeling|SuspensionControlModeling]] ||
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-== Space for VIS-internal use ==
+||<#1e50a2 style="color:#ffffff; text-align:center;"> '''Suspensions''' ||<#1e50a2 style="color:#ffffff; text-align:center;"> '''Mechanics''' ||<#1e50a2 style="color:#ffffff; text-align:center;"> '''Sensors''' ||<#1e50a2 style="color:#ffffff; text-align:center;"> '''Actuators/Motors'''||<#1e50a2 style="color:#ffffff; text-align:center;"> '''Digital System'''||<#1e50a2 style="color:#ffffff; text-align:center;"> '''Control'''||
||<style="font-weight:bold;"> [[KAGRA/Subgroups/VIS/TypeA|Type-A]] || [[KAGRA/Subgroups/VIS/Mechanics/Pre-Isolator|Pre-Isolator]] || [[KAGRA/Subgroups/VIS/Sensors/InertialSensor|Inertial Sensor]] || [[KAGRA/Subgroups/VIS/Actuators/VoiceCoilActuator|Voice coil actuator]] || [[KAGRA/Subgroups/VIS/RealTimeModel|RTModel]] || [[KAGRA/Subgroups/VIS/Control/General|General concept]] ||
||<style="font-weight:bold;"> [[KAGRA/Subgroups/VIS/TypeB|Type-B]] || [[KAGRA/Subgroups/VIS/Mechanics/GAS|GAS]] || [[KAGRA/Subgroups/VIS/Sensors/LVDT|LVDT]] || Solenoid actuator? || [[KAGRA/Subgroups/VIS/Guardian|Guardian]] || [[KAGRA/Subgroups/VIS/Kontrol|Kontrol]] ||
||<style="font-weight:bold;"> [[KAGRA/Subgroups/VIS/TypeBp|Type-Bp]] || [[KAGRA/Subgroups/VIS/Mechanics/MagneticDamper|Magnetic damper]] ||[[KAGRA/Subgroups/VIS/Sensors/PhotoSensor|Photo Sensor]] || [[KAGRA/Subgroups/VIS/Motors/Picomotor|Picomotor]] || [[KAGRA/Subgroups/VIS/OpsManual/SDF|SDF]] || - ||
||<style="font-weight:bold;"> [[KAGRA/Subgroups/VIS/Type-C|Type-C]] || [[KAGRA/Subgroups/VIS/Mechanics/MaragingWire|Maraging wire]] || [[KAGRA/Subgroups/VIS/Sensors/OpLev|Optical Lever (OpLev)]] || [[KAGRA/Subgroups/VIS/Motors/StepperMotor|Stepper motor]] || - || - ||
||<style="font-weight:bold;"> [[KAGRA/Subgroups/VIS/TMS-VIS|TMS-VIS]] || --- ||<-2 style="text-align:center;"> [[KAGRA/Subgroups/VIS/Sensors/OSEM|OSEM]] || - || - ||
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-=== Quick announcement ===
+||<#52a31f style="color:#ffffff; text-align:center;"> '''Design''' ||<#52a31f style="color:#ffffff; text-align:center;"> '''Detail Design''' ||<#52a31f style="color:#ffffff; text-align:center;"> '''Installation''' ||<#52a31f style="color:#ffffff; text-align:center;"> '''Commissioning''' ||<#52a31f  style="color:#ffffff; text-align:center;"> '''Operation''' ||<#52a31f  style="color:#ffffff; text-align:center;"> '''Future Upgrade''' ||
|| Suspension Design || [[KAGRA/Subgroups/VIS/CAD|CAD]] || [[KAGRA/Subgroups/VIS/IstManual|Procedure]] || [[KAGRA/Subgroups/VIS/VISMON|VIS Monitors]] || [[KAGRA/Subgroups/VIS/OpsManual|Manual]]||[[KAGRA/Subgroups/VIS/Upgrade|Upgrade]] ||
|| [[KAGRA/Subgroups/VIS/ActuatorDesign|Actuator Design]] || [[KAGRA/Subgroups/VIS/RackLayout|Rack Layout]] || [[KAGRA/Subgroups/VIS/VISInstWorkInfo|Misc.]] || [[KAGRA/Subgroups/VIS/OpsManual/HealthCheck|HealthCheck]] ||├ [[KAGRA/Subgroups/VIS/OpsManual/Pico|Picomotor]] || --- ||
|| --- || [[KAGRA/Subgroups/VIS/Cabling|Cabling]] || [[KAGRA/Subgroups/VIS/Calibration|Calibration]] || --- || ├ [[KAGRA/Subgroups/VIS/OpsManual/FishingRods|Fishing Rods]] || --- ||
|| --- || --- || [[KAGRA/Subgroups/VIS/Diagonalization|Diagonalization]] || --- || ├ [[KAGRA/Subgroups/DGS/Projects/StepperMotor|Stepper Motor]] || --- ||
|| --- || --- || [[KAGRA/Subgroups/VIS/Diagonalization|Diagonalization]] || --- || └  || --- ||
|| --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/TypeA|TypeA|]] || --- ||
|| --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/TypeB|TypeB|]] || --- ||
|| --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/TypeBp|TypeBp|]] || --- ||
|| --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/TypeC|TypeC|]] || --- ||
|| --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/TMS-VIS|TMS-VIS|]] || --- ||
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-=== Frequently used links ===
 * '''VIS meeting''': From 14:00 (JST) on every Friday - [[KAGRA/Subgroups/VIS/MeetingNAOJ|Meeting Page]]
+||<#808080 style="color:#ffffff; text-align:center;"> '''Links, Misic.''' ||<#808080 style="color:#ffffff; text-align:center;"> '''Documents''' ||
||Wiki [[https://awiki.ligo-wa.caltech.edu/wiki/Seismic_Isolation| SEI]], [[https://awiki.ligo-wa.caltech.edu/wiki/Suspensions|SUS]] ||  [[KAGRA/Subgroups/VIS/Introduction|VIS Introduction]]  ||
||Log [[https://alog.ligo-la.caltech.edu/SEI/index.php?content=1| SEI]], [[https://alog.ligo-wa.caltech.edu/aLOG/index.php?content=1|LHO]], [[https://alog.ligo-la.caltech.edu/aLOG/|LLO]], [[https://logbook.virgo-gw.eu/virgo/|Virgo]] || ||
|| [[KAGRA/Subgroups/VIS/Photos|Photos]] || ||
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-----
== VIS Upgrades ==
+== Requirements ==
VIS subgroup guarantee the following items;
 1. '''Isolation performance''': Does not contaminate the design sensitivity
 2. '''Stability''': Keep the above performance in anytime
 3. '''Operability''': Recover the all VIS system automatically
-Line 19:
+Line 41:
-[[KAGRA/Subgroups/VIS/Upgrade|Upgrade Page]]

----
== Instruments ==

=== Suspension types ===
[[KAGRA/Subgroups/VIS/TypeA|Type-A]]

[[KAGRA/Subgroups/VIS/TypeB|Type-B]]

[[KAGRA/Subgroups/VIS/TypeBp|Type-Bp]]

[[KAGRA/Subgroups/VIS/Type-C|Type-C]]

[[KAGRA/Subgroups/VIS/Payload|Payload]]

[[KAGRA/Subgroups/VIS/ActuatorDesign|Actuator design summary]]

[[KAGRA/Subgroups/VIS/ChangeLog|Design Change Logs]]

=== Suspended optics ===

The optics in the KAGRA interferometer are often called their acronyms/abbreviations. Please mind also that we call the vacuum chambers or clean booths in a similar manner.

 * Arm cavity
  * ETMX
  * ETMY
  * ITMX
  * ITMY
 * Beam splitter (BS)
 * Signal recycling cavity
  * SRM
  * SR2
  * SR3
 * Power recycling cavity
  * PRM
  * PR2
  * PR3
 * Input optics
  * IMC
  * IMMT1
  * IMMT2
 * Output optics
  * OMMT1
  * OMMT2
  * OSTM
  * OMC
 * Auxiliary optics
  * TMSX
  * TMSY

=== Mechanics ===

==== Tower ====
 * Pre-isolator
  * Inverted Pendulum (IP)
  * Top GAS Filter (TF<<FootNote(This abbreviation should be avoided because it often refers to rather Transfer Function.)>>)
 * Standard GAS Filter (SF)
 * Bottom GAS Filter (BF)
 * Magnetic damper

==== Payload ====
 * Cryogenic payload (CRYp): The bottom 4 stages in Type-A suspension, branch recoil-mass chain
  * Platform (PF)
  * Marionette (MN)
  * Intermediate Mass (IM)
  * Test Mass (TM)
 * Room-temperature payload: The bottom 2 stages in Type-B and Type-Bp suspension, parallel recoil-mass chain
  * Intermediate Mass (IM)
  * Test Mass (TM)

=== Electronics ===

A list of local sensors, actuators, and motors equipped by the suspension systems.

 * '''LVDT''' - Linear Variable Differential Transducer/Transformer, displacement sensor
  * [''Derivative''] Bottom-filter LVDT (BF LVDT)
 * '''Geophone''' - inertial velocity sensor
 * '''Accelerometer''' - 
 * '''OSEM''' - Optical Sensor and Electromagnet
 * '''Optical Lever'''
 * '''Fishing rod'''
 * Picomotor
 * 

----
== Installation ==
 . [[KAGRA/Subgroups/VIS/IstManual|Installation Procedure]]
 . [[KAGRA/Subgroups/VIS/VISInstWorkInfo|Misc. Installation Work Information]]

 . [[KAGRA/Subgroups/VIS/iKAGRAbKAGRA|Tasks from iKAGRA to bKAGRA]]
----
== Real Time Model Development ==
 . [[KAGRA/Subgroups/VIS/RealTimeModel|Real-time Model Development]]
----
== Operation ==
 . [[KAGRA/Subgroups/VIS/OpsManual|Operation Manual]]

----
== VIS Introductioon ==
 . [[KAGRA/Subgroups/VIS/Introduction|Introduction materials for VIS]]
+Detail descriptions are written in here: [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11930|JGW-E2011930]]
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-----
== VIS Commissioning ==
 . [[KAGRA/Subgroups/VIS/Type-A/Commissioning|Type-A Commissioning]]



----
== Archives ==
 . [[KAGRA/Subgroups/VIS/Photos|Photos]]

----
== Old Weekly EVO Meeting ==
 . This meeting is suspended.

[[KAGRA/Subgroups/VIS/OldVISMeetings|Past minutes]]

== Subgroup ==

=== Members ===

 * Chief: R. Takahashi
 * Member： N. Ohishi, H. Ishizaki, F. E. Pena Arellano, M. Barton, N. Hirata, R. Flaminio, Y. Aso, T. Akutsu , E. Tapia (NAOJ),
 T. Sekiguchi, K. Yamamoto, T. Uchiyama (ICRR), R. DeSalvo (Univ. of Sannio), E. Majorana (INFN Rome), J. van den Brand, E. Hennes, A. Bertolini, J. van Heijningen, K. Agatsuma (NIKHEF)

=== Communication info ===

 * Mailing list: [kagra-seis]

<<Navigation(children)>>
+-----
/!\ [April 28. 2020] Miyo is cleaning up the VIS wiki pages. Progress is posted [[https://github.com/gw-vis/kagra-vis/issues/18|here]].