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| ||'''[[LCGT|PROJECT TOP]]''' ||[[LCGT/subgroup/analysis|GW Analysis]] ||[[LCGT/subgroup/ifo|Interferometer]] ||[[LCGT/subgroup/vacuum|Vacuum & Cryostat]] ||[[LCGT/subgroup/laser|Laser & Optics]] ||[[LCGT/subgroup/vis|Seismic Isolator]] ||[[LCGT/subgroup/infra|Infrastructure]] || | = Vibration Isolation System (VIS) = |
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| == 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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| <<TableOfContents(3)>> | Reference [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=365|JGW-T1100365-v2]] |
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| == Vibration Isolation == . Chief： R. Takahashi(ICRR) . Member： T. Uchiyama(ICRR), R. De''''''Salvo(Univ. of Sannio), H. Ishizaki(NAOJ), A. Takamori(ERI), E. Majorana(INFN), T. Sekiguchi(ICRR), K. Yamamoto(ICRR) |
----- ||<#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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| ---- == Weekly EVO Meeting == . Every Wednesday, 21:00(JST) |
||<#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]] || || --- || --- || --- || --- || --- || [[KAGRA/Commissioning/NoiseBudgetter|Noise Budgetter]] || |
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| === The 24th (28 September, 2011) === . [[attachment:KAGRA/Subgroups/VIS/modal_0928.pdf|Modal Analysis of Tripod by Takanori]] |
||<#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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| === The 23th (15 September, 2011) === . [[attachment:KAGRA/Subgroups/VIS/TypeB_sim_0915.pdf|Simulation on TypeB by Takanori]] |
/!\ [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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| === 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]] |
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| === The 21th (31 August, 2011) === | * [[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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| === 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]] . [[LCGT/subgroup/vis/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 === . [[LCGT/subgroup/vis/FEM|FEM Page]] === Rigid-Body Models === . [[LCGT/subgroup/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)