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| <<TableOfContents(3)>> | = Vibration Isolation System (VIS) = |
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| == Vibration Isolation == . Chief： R. Takahashi (NAOJ) . Member： N. Ohishi, H. Ishizaki, F. E. Pena Arellano, M. Barton, N. Hirata, R. Flaminio, Y. Aso, T. Akutsu (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) |
== Subsystem Definition == 1. This subsystem makes vibration isolation for all optics used in KAGRA. 2. Requirement of displacement of the test mass mirrors must be less than 4x10^-20m/rtHz at 10Hz. RMS motion must be less than 0.1 um as displacement and 0.1 um/s as velocity. （please note that it is old information） |
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| ---- == NAOJ VI Meeting == . Every Wednesday, from 15:00 (JST) . [[KAGRA/Subgroups/VIS/MeetingNAOJ|Meeting Page]] |
Reference [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=365|JGW-T1100365-v2]] |
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| ---- == Design == [[KAGRA/Subgroups/VIS/TypeA|Type-A]] |
----- ||<#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'''|| || 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/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]] || ||[[KAGRA/Subgroups/VIS/Requirement|Requirement]] ||<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]] || [[KAGRA/Subgroups/VIS/BIO|BIO]] || || - ||<style="font-weight:bold;"> [[KAGRA/Subgroups/VIS/TMS-VIS|TMS-VIS]] || - || [[KAGRA/Subgroups/VIS/ReleaseSensor|Release Sensor]] || [[KAGRA/Subgroups/VIS/OpsManual/FishingRods|Fishing Rods]] || - || || - || - || - || - || [[KAGRA/Subgroups/VIS/OpsManual/Traverser|Traverser]] || - || || - || - || - || - || [[KAGRA/Subgroups/VIS/OpsManual/PicomotorPowerControlSwitch| PicomotorPowerControlSwitch]] || - || || - || - || - ||<-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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| Type-B | ||<#a31f52 style="color:#ffffff; text-align:center;"> '''Meetings'''||<#a31f52 style="color:#ffffff; text-align:center;"> '''Management'''||<#a31f52 style="color:#ffffff; text-align:center;"> '''Maintainance/Diagnostics'''||<#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/Maintainance|Maintainance]] ||[[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/Acceptance Test|Acceptance Test]] || [[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/OpsManual/DGSMaintainance| DGSMaintainance]] ||[[KAGRA/Subgroups/VIS/CRYInterfaces|CRY interface]] || || [[KAGRA/Subgroups/VIS/OpsManual/AutoMeasurement|AutoMeasurement]] || || --- || --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/OpsManual/SuspensionControlModeling|SuspensionControlModeling]] || || --- || --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/Kontrol|Kontrol]] || || --- || --- || --- || --- || --- || [[KAGRA/Subgroups/VIS/VISHack|VIS Health Check]] || |
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| [[KAGRA/Subgroups/VIS/TypeBp|Type-Bp]] | ||<#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]] || [[KAGRA/Subgroups/VIS/Daily Operations|Daily Operations]] || |
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| Type-C | /!\ [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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| [[KAGRA/Subgroups/VIS/Payload|Payload]] | ----- === Old (Please arrange me) === |
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| iKAGRA TM | * [[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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| ---- == Installation == . [[KAGRA/Subgroups/VIS/IstManual|Installation Procedure]] ---- == Operation == . [[KAGRA/Subgroups/VIS/OpsManual|Operation Manual]] ---- == Weekly EVO Meeting == . This meeting is suspended. === The 31th (12 September, 2012) === . [[attachment:KAGRAvi_minute_2012Sep12.txt|Minute]] === The 30th (5 September, 2012) === . [[attachment:KAGRAvi_minute_2012Sep05.txt|Minute]] === The 29th (29 August, 2012) === . [[attachment:KAGRAvi_minute_2012Aug29.txt|Minute]] === The 28th (22 August, 2012) === . [[attachment:KAGRAvi_minute_2012Aug22.txt|Minute]] === The 27th (15 August, 2012) === . No meeting (summer vacation) === The 26th (8 August, 2012) === . [[attachment:KAGRAvi_minute_2012Aug08.txt|Minute]] === The 25th (1 August, 2012) === . [[attachment:KAGRAvi_minute_2012Aug01.txt|Minute]] === The 24th (28 September, 2011) === . [[attachment:KAGRA/Subgroups/VIS/modal_0928.pdf|Modal Analysis of Tripod by Takanori]] === The 23th (15 September, 2011) === . [[attachment:KAGRA/Subgroups/VIS/TypeB_sim_0915.pdf|Simulation on TypeB by Takanori]] === The 22th (7 September, 2011) === . [[attachment:KAGRA/Subgroups/VIS/Type-B_system_rycy.pdf|Z-Assembly for RM by Riccardo]] . [[attachment:KAGRA/Subgroups/VIS/Type-B_system_bs.pdf|Z-Assembly for BS by Riccardo]] . [[attachment:KAGRA/Subgroups/VIS/TypeB_sim_0907.pdf|Simulation on TypeB by Takanori]] === The 21th (31 August, 2011) === === The 20th (24 August, 2011) === === The 19th (10 August, 2011) === === The 18th (27 July, 2011) === . [[attachment:KAGRA/Subgroups/VIS/PayloadB_0727.pdf|Design of Type-B payload by Riccardo]] === The 17th (20 July, 2011) === === The 16th (13 July, 2011) === . [[attachment:KAGRA/Subgroups/VIS/SR2-PR2_0711.pdf|SR2-PR2 recoil mass by Riccardo]] . [[attachment:KAGRA/Subgroups/VIS/angle_0713.pdf|Angular fluctuation of TM by Takanori]] === The 15th (6 July, 2011) === . [[attachment:KAGRA/Subgroups/VIS/2type_0701.pdf|Type-B payload model by Sekiguchi]] === The 14th (29 June, 2011) === . [[attachment:KAGRA/Subgroups/VIS/kapton_0627.pdf|Kapton Wire by Sekiguchi]] === The 13th (22 June, 2011) === . [[http://tamago.mtk.nao.ac.jp/ishizaki/LCGT/kaptonwire/cable.pdf|Kapton Wire by Ishizaki]] === The 12th (15 June, 2011) === === The 11th (8 June, 2011) === . [[attachment:KAGRA/Subgroups/VIS/minute0608.pdf|Minute]] === The 10th (1 June, 2011) === . [[attachment:KAGRA/Subgroups/VIS/damping0601.pdf|Mode damping study by Takanori]] === The 9th (25 May, 2011) === === The 8th (18 May, 2011) === . [[attachment:KAGRA/Subgroups/VIS/magicwand.png|Magic wands by Takanori]] . [[attachment:KAGRA/Subgroups/VIS/Check110512.pdf|Heavier test mass by Ettore and Takanori]] === The 7th (11 May, 2011) === . [[attachment:KAGRA/Subgroups/VIS/rep110511.pdf|Report by Takanori]] === The 6th (27 April, 2011) === . [[attachment:KAGRA/Subgroups/VIS/dimension110427.docx|Payload dimensions by Riccardo]] === The 5th (20 April, 2011) === . [[attachment:KAGRA/Subgroups/VIS/3D_model.pdf|Parameter Configuration by Ettore]] === (11 April, 2011) === . [[attachment:KAGRA/Subgroups/VIS/LCGT_PAY_10-30.pdf|Parameter Configuration by Ettore]] === The 4th (6 April, 2011) === . [[attachment:KAGRA/Subgroups/VIS/10-30_April06.docx|Simulation by Ettore]] . [[attachment:KAGRA/Subgroups/VIS/sequence110406.pdf|Installation sequence by Riccardo]] === The 3rd (30 March, 2011) === . [[attachment:KAGRA/Subgroups/VIS/coordinate110330.pdf|Coordinate system by Ryutaro]] . [[attachment:KAGRA/Subgroups/VIS/110330_isasA.pdf|Simulation by Takanori]] === The 2nd (23 March, 2011) === . [[attachment:KAGRA/Subgroups/VIS/memo110323.txt|Comments by Riccardo]] . [[attachment:KAGRA/Subgroups/VIS/report110323.doc|Status report by Riccardo]] . [[attachment:KAGRA/Subgroups/VIS/sim110323.pptx|Simulation by Ettore]] === The 1st (16 March, 2011) === . [[attachment:KAGRA/Subgroups/VIS/Tower-a.pdf|Design for Type-A system]] . [[attachment:KAGRA/Subgroups/VIS/filter-chain.pdf|Detail of filter's chain]] ---- == LCGT防振系作業部会(2009) == === 第6回 === . 11月12日(木) 15:00-16:30 天文台輪講室 . [[attachment:KAGRA/Subgroups/VIS/Modeling6.ppt|Model vs. Measurement in TAMA-SAS]] . [[attachment:KAGRA/Subgroups/VIS/chamber-AB.pdf|Design of Type-A,B chamber (rev.)]] === 第5回 === . 10月15日(木) 13:00-14:30 天文台大会議室 ([[attachment:KAGRA/Subgroups/VIS/minutes5.pdf|議事録]]) . [[attachment:KAGRA/Subgroups/VIS/Modeling5.ppt|LCGT-SAS Modeling 5 (Type-B,C)]] . [[attachment:KAGRA/Subgroups/VIS/chamber-A.pdf|Design of Type-A chamber]] === ブレーンストーミング === . 10月1日(木) 13:00-15:00 東京大学理学部１号館445号室 ([[attachment:KAGRA/Subgroups/VIS/minutes-b.pdf|議事録]]) . [[attachment:KAGRA/Subgroups/VIS/brest.pdf|メモ]] === 第4回 === . 9月3日(木) 15:00-16:30 天文台輪講室 ([[attachment:KAGRA/Subgroups/VIS/minutes4.pdf|議事録]]) . [[attachment:KAGRA/Subgroups/VIS/Modeling3.ppt|LCGT-SAS Modeling 3 (Gain boost)]] . [[attachment:KAGRA/Subgroups/VIS/Modeling4.pdf|LCGT-SAS Modeling 4 (Vertical, Pitch)]] . [[attachment:KAGRA/Subgroups/VIS/ICDsas2.doc|ICD update]] ([[attachment:ICDsas2.pdf|PDF]]) === 第3回 === . 8月6日(木) 15:00-16:30 天文台輪講室 ([[attachment:KAGRA/Subgroups/VIS/minutes3.pdf|議事録]]) . [[attachment:KAGRA/Subgroups/VIS/Modeling2.ppt|LCGT-SAS Modeling 2]] . [[attachment:KAGRA/Subgroups/VIS/RandD2.pdf|低温懸架のR&Dについて]] === 第2回 === . 7月16日(木) 15:00-16:30 天文台輪講室 ([[attachment:KAGRA/Subgroups/VIS/minutes2.pdf|議事録]]) . [[attachment:KAGRA/Subgroups/VIS/Modeling1.ppt|LCGT-SAS Modeling]] . [[attachment:KAGRA/Subgroups/VIS/RandD.pdf|LCGT-SASのR&Dについて]] === 第1回 === . 6月3日(水) 17:00-19:00 天文台輪講室 ([[attachment:KAGRA/Subgroups/VIS/minutes1.pdf|議事録]]) . [[attachment:KAGRA/Subgroups/VIS/agenda1.pdf|作業班、スケジュール]] . [[attachment:KAGRA/Subgroups/VIS/ICDsas.doc|ICD]] ([[attachment:ICDsas.pdf|PDF]]) . [[attachment:KAGRA/Subgroups/VIS/LCGT-SAS2.pdf|常温-低温接続部]] . R&Dについて (次回) ---- == Archive == === TAMA SAS === . [[attachment:KAGRA/Subgroups/VIS/Report2009.ppt|Evaluation of TAMA-SAS for LCGT]] . [[attachment:tama_sas.pdf|Drawings of TAMA SAS]] . [[KAGRA/Subgroups/VIS/FEM/tama_sas|Item list to be improved]] === TAMA Double Pendulum === . [[LCGT/subgroup/vis/tama_double|Item list to be improved]] === Seismic spectrum in Kamioka mine === . [[attachment:LCGT/subgroup/ifo/SPI/HeatLink/0702seis_Araya.zip|In loud day]] (This data should be used as nominal ground motion in Kamioka) . [[attachment:CLIO/NoiseBudgets/seismic/cryo_seismic.txt|In cryostat]] === LCGT-SAS model === . Transfer function X0~X7/Xg --([[attachment:KAGRA/Subgroups/VIS/model_trf.txt|(old)]])-- . Modeling M-file --([[attachment:KAGRA/Subgroups/VIS/model_mfile.zip|(2009/8/15)]])--[[attachment:KAGRA/Subgroups/VIS/model_mfile2.zip|(2009/8/17)]] . Spectrum of displacement --([[attachment:KAGRA/Subgroups/VIS/model_disp.zip|(2009/8/15)]])--[[attachment:KAGRA/Subgroups/VIS/model_disp2.zip|(2009/8/17)]] === Finite Element Analysis === . [[KAGRA/Subgroups/VIS/FEM|FEM Page]] === Rigid-Body Models === . [[KAGRA/Subgroups/VIS/Simulation|Simulation Page]] |
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Vibration Isolation System (VIS)
Subsystem Definition
- This subsystem makes vibration isolation for all optics used in KAGRA.
- Requirement of displacement of the test mass mirrors must be less than 4x10^-20m/rtHz at 10Hz. RMS motion must be less than 0.1 um as displacement and 0.1 um/s as velocity. （please note that it is old information）
Reference JGW-T1100365-v2
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![/!\](/moin_static193/modern/img/alert.png "/!\"){kind=small}
[April 28. 2020] Miyo is cleaning up the VIS wiki pages. Progress is posted here.
Old (Please arrange me)