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| = VIS = --- '''V'''ibration '''I'''solation '''S'''ystem is the hardware infrastructure for the main optics in the KAGRA interferometer. |
/!\ [April 28. 2020] Miyo is cleaning up the VIS wiki pages. Progress is posted [[https://github.com/gw-vis/kagra-vis/issues/18|here]]. |
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| <<TableOfContents(3)>> | = Vibration Isolation System (VIS) = |
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| == Space for VIS-internal use == | Requirements:: :: '''Isolation performance''': Does not contaminate the design sensitivity :: '''Stability''': Keep the above performance in anytime :: '''Operability''': Recover the all VIS system automatically |
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| === Quick announcement === | Ref :[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11930|JGW-E2011930]] ----- ||<#1e50a2 style="color:#ffffff; text-align:center;"> '''Design''' ||<#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;"> '''Diagnostics'''|| || Concept? ||<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/Acceptance Test|Acceptance Test]] || || [[KAGRA/Subgroups/VIS/ActuatorDesign|Actuator Design]] ||<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]] || --- || || - ||<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/OpsManual/Pico|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/DGS/Projects/StepperMotor|Stepper Motor]] || - || - || || - ||<style="font-weight:bold;"> [[KAGRA/Subgroups/VIS/TMS-VIS|TMS-VIS]] || - || - || [[KAGRA/Subgroups/VIS/OpsManual/FishingRods|Fishing Rods]] || - || - || || - || - || - ||<-2 style="text-align:center;"> [[KAGRA/Subgroups/VIS/Sensors/OSEM|OSEM]] || - || - || || - || - || - ||<-2 style="text-align:center;"> [[KAGRA/Subgroups/VIS/TempControl|Temp. Control]] || - || - || |
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| === Frequently used links === * '''VIS meeting''': From 14:00 (JST) on every Friday - [[KAGRA/Subgroups/VIS/MeetingNAOJ|Meeting Page]] |
||<#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;"> '''VIS 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://app.zenhub.com/workspaces/upgrade-for-o4-5f56e83aff8ec50012d90116/board?repos=276073075|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]]||[[https://github.com/gw-vis|Github Repository]] || [[KAGRA/Subgroups/VIS/CRYInterfaces|CRY interface]] || || [[KAGRA/Subgroups/VIS/OpsManual/AutoMeasurement|AutoMeasurement]] || || --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/SuspensionControlModeling|SuspensionControlModeling]] || || --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/Kontrol|Kontrol]] || |
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| ---- == VIS Upgrades == |
||<#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]] || [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4005|VIS Doc. Tree]] || || [[KAGRA/Subgroups/VIS/Photos|Photos]] || || ----- === Old (Please arrange me) === |
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| [[KAGRA/Subgroups/VIS/Upgrade|Upgrade Page]] | * [[KAGRA/Subgroups/VIS/IstManual|Procedure]] * [[KAGRA/Subgroups/VIS/VISInstWorkInfo|Misc.]] * [[KAGRA/Subgroups/VIS/OpsManual|Manual]] * [[KAGRA/Subgroups/VIS/Upgrade|Upgrade]] * [[KAGRA/Subgroups/VIS/OpsManual/HealthCheck|HealthCheck]] * [[KAGRA/Subgroups/VIS/OpsManual/TypeA|OpsManual-TypeA|]] * [[KAGRA/Subgroups/VIS/OpsManual/TypeB|OpsManual-TypeB|]] * [[KAGRA/Subgroups/VIS/OpsManual/TypeBp|OpsManual-TypeBp|]] * [[KAGRA/Subgroups/VIS/OpsManual/TypeC|OpsManual-TypeC|]] |
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| ---- == 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]] ---- == 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)>> |
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[April 28. 2020] Miyo is cleaning up the VIS wiki pages. Progress is posted here.
Vibration Isolation System (VIS)
- Requirements
Isolation performance: Does not contaminate the design sensitivity
Stability: Keep the above performance in anytime
Operability: Recover the all VIS system automatically
Ref :JGW-E2011930
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Sensors |
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VIS Apps |
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