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= VIS = | = Vibration Isolation System (VIS) = == 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 |
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'''V'''ibration '''I'''solation '''S'''ystem is the hardware infrastructure for the main optics in the KAGRA interferometer. | 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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<<TableOfContents(3)>> | ||<#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;"> '''Control'''|| || 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/Control/General|General concept]] || || [[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]] || - || - || || - || - || - ||<-3 style="text-align:center;"> [[KAGRA/Subgroups/VIS/TempControl|Temp. Control]] || - || |
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== Space for VIS-internal use == === Quick announcement === === Frequently used links === * '''VIS meeting''': From 14:00 (JST) on every Friday - [[KAGRA/Subgroups/VIS/MeetingNAOJ|Meeting Page]] ---- == VIS Upgrades == [[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]] |
||<#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://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]] || || --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/Kontrol|Kontrol]] || |
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---- == VIS Commissioning == . [[KAGRA/Subgroups/VIS/Type-A/Commissioning|Type-A Commissioning]] |
||<#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/RackLayout|Rack Layout]] || [[KAGRA/Subgroups/VIS/VISInstWorkInfo|Misc.]] || [[KAGRA/Subgroups/VIS/OpsManual/HealthCheck|HealthCheck]] ||├ --- || --- || || --- || [[KAGRA/Subgroups/VIS/Cabling|Cabling]] || [[KAGRA/Subgroups/VIS/Calibration|Calibration]] || --- || ├ --- || --- || || --- || --- || [[KAGRA/Subgroups/VIS/Acceptance Test|Acceptance Test]] || --- || ├ --- || --- || || --- || --- || [[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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||<#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]] || || |
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---- == 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]]. |
Vibration Isolation System (VIS)
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
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Suspensions |
Mechanics |
Sensors |
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Digital System |
Control |
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[April 28. 2020] Miyo is cleaning up the VIS wiki pages. Progress is posted here.