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== Task list ==
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792]]		 Information of the Type-A Seismic Attenuation System (SAS).
This page wants information about not only room-temperature parts but also cryogenic vibration isolation system.
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= Type-A Meeting on 2016/7/12 =
2016/7/12 11:00 - 12:30 @Kashiwa		 == Status ==
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Participants: Takahashi, Ishizaki(Skype), Sato, Okutomi  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/WorkingLog|Site work log]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792|Schedule (Task list)]]
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=== Minutes ===
 0-2 Simulation (Okutomi)
  * The frequency shift was due to damping model.
  * Setting for GAS filters was corrected.
  * Going BF damping simulation by manual tuning.
  * Result will be reported by the VIS meeting.
 2-3 Setting of cross chamber (VAC)
  * Horizontal position of the top flange on the cryostat was different from the center of the top chamber by 25mm along beam axis.
 3-2 Assembly of TF+IP (Sato)
  * The place should be in the center room of KAGRA considering DGS setup.
 3-5 ACC preparation (Sato)
  * 6 sets of ACC were measured.
  * Additional 3 sets will be taken from NM1 in TAMA on 14th.
  * Tube for the spot cooler was set.
 4-2,3 Standard filter (Hirata)
  * 2 sets were finished.
 5-1 Manufacturing of blade (Takahashi)
  * Cutting of 22 blades was finished.
 5-6 Design of damper (Sato)
  * Original design from VIRGO does not fit to the space around BF.
  * The bending point is higher than the suspension point.
 6-1 Design of EQ stop (Ishizaki)
  * Made outer shape of end plate.
 6-3 Test of prototype (Ishizaki)
  * Assembling of the EQ stop prototype was started.
  * Thin dummy weights were prepared.
  * I-bolts on the plate were interfered with connection rods.
  * Outer diameter of the stop plate was larger than inner diameter of the frame lock.
 6-4 Design of release sensor (Sato)
  * 3 sensors were attached to the plate for the prototype test.
 8-1 Design of dummy payload (Okutomi, Ishizaki)
  * Circular type weight is suitable for combined dummy load.
  * Okutomi will send a cartoon soon.
 9-5 Installation
  * Protection for falling items is necessary. Check the small bolts size to decide the mesh of net.
  * Discuss on evacuation of the chamber.		  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/ETMX|ETMX]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/ETMY|ETMY]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/ITMX|ITMX]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/ITMY|ITMY]]
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Next meeting: 2016/7/19 13:00 ------
<<TableOfContents(3)>>
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= Type-A Meeting on 2016/7/5 =
2016/7/5 13:00 - 14:00 @Kamioka		 [[TypeAoverview|{{attachment:TypeAoverview.png||width=33%,align="right"}}]]
[[TypeAdesign|{{attachment:figTypeAsasNamed3.png||width=33%,align="right"}}]]
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Participants: Takahashi, Ishizaki, Sato, Okutomi == Drawings ==
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=== Minutes ===
 0-2 Simulation (Okutomi)
  * The frequency shift might be due to damping model.
  * Matlab model was remade.
  * Sensors and actuators were added to the BF stage.
 1-1 Clean Booth (FCL)
  * The booth will be ready in December.
 2-1 Setting of top chamber (VAC)
  * The schedule was shifted to December.
 2-3 Setting of cross chamber (VAC)
  * From 8th July, presence on 11th.
 3-2 Assembly of TF+IP (Sato)
  * The place should be considered again.
 3-5 ACC preparation (Sato)
  * 5 sets of ACC were measured.
 5-1 Manufacturing of blade (Takahashi)
  * Cutting of 12 blades was finished.
 5-2 Assembly of BF (Hirata)
  * Will be started in September.
 6-3 Test of prototype (Ishizaki)
  * The first setup and its procedure were shown.
  * Thin dummy weight and short hoock should be prepared.
  * Some cap screws on stop plates should be replaced to stop screws.
 6-4 Design of release sensor (Sato)
  * Under cable connection.
 8-1 Design of dummy payload (Okutomi, Ishizaki)
  * Interferometer test was canceld.
  * The EQ stop and the dummy payload should be ordered together in August.
 9-2 Transportation to 2F (Takahashi, Ishizaki)
  * Situation of the Y-end was investigated.
  * Maximum box width, which can go through the tunnel, was 1.5m.
  * Access road from Mozumi entrance was improved.
 9-3 Cable assembly (Sato)
  * Ask CRY number of cables.		  * Type-A SAS whole assy
 * Vacuum chamber
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5794|Vertical]] (IXV, EXV, IYV, EYV)
  * Cryostat
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Next meeting: 2016/7/12 11:00 === Tower ===
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5460|Earthquake stop - Security frame]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=6918|Pre-Isolator]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5636|Top Filter (TF)]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5637|Inverted Pendulum (IP)]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5638|F0 LVDT-actuator unit]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5639|Blade spring for static position adjustment]]
 * Magnetic Damper (MD)
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5635|Standard Filter (SF)]]
 * Bottom Filter (BF)
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5656|BF LVDT and Attachments]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2555|Fishing rod]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5743|Maraging wire]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5461|Dummy Payload]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5462|Hoist's tools]]
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= Type-A Meeting on 2016/6/28 =
2016/6/28 13:00 - 14:30 @The 4th meeting room		 === Cryogenic Payload ===
 * Cryo-Payload assy
 * Platform (PF)
 * Marionette (MT)
 * Marionette Recoil Mass
 * Intermediate Mass (IM)
 * Intermediate Recoil Mass
 * Test Mass (TM) - Sapphire Mirror
 * Recoil Mass
 * Heat link
  * Heat link suspension
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Participants: Takahashi, Ishizaki, Sato, Okutomi -----
== Documents ==
=== Reports ===
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5196|Requirements for Type-A SAS]]
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=== Minutes ===
 0-1 Assembly model (Ishizaki)
  * Made the test setup.
 0-2 Simulation (Okutomi)
  * No progress. The results will be reported in the next VIS meeting.
 1-1 Clean Booth (FCL)
  * Present design: The booth is hung from the ceiling.
 2-3 Setting of cross chamber (VAC)
  * From 8th July, presence on 11th.
 3-5 ACC preparation (Sato)
  * Working space: The 20m lab was arranged on 27th.
 4-3 Standard filter (Hirata)
  * Assembly of FR and measurement: 1 set was finished.
 5-1 Manufacturing of blade (Takahashi)
  * Cutting: 6 blades by July + 6 blades by Sep.
 5-6 Design of damper (Sato)
  * Device: It is difficult to put the devices at the center of suspension point.
 6-1 Design of EQ stop (Ishizaki)
  * Modeling: 3D model for the test setup was built.
 6-3 Test of prototype
  * Frame lock, extension rods, adjusters were delivered.
  * Hoist's tool will be necessary.
  * Test items related to the frame design have high priority. Target date is 22th July.
 6-4 Design of release sensor (Sato)
  * Bases and shims were delivered.
  * Plate additional machining: Delivery on 29th.
  * Circuit: LED box was made. Cabling has not been applied yet.
 8-1 Design of dummy payload (Okutomi, Ishizaki)
  * Cartoon: Okutomi should send to Ishizaki soon!
 9-1 Establishment of procedure (Takahashi, Okutomi)
  * Test plan is made parallel with test work. Check the list of test items.
 9-2 Transportation to 2F (Takahashi, Ishizaki)
  * Situation of the site will be checked in 5-7th July.
  * Electric crawler is limitted, for example, for 200kg load.
 9-3 Cable assembly (Sato)
  * Number of cables: CRY will decide it by the end of June.		 === Installation Procedure ===
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=410|Initial concept]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5500|Installation procedure of Type-A system]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9838|Installation direction of Bottom Filter]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10522|TF Yaw drive mechanism Initial adjustment]]
=== Measurement and Analysis ===
 * Type-A Control Simulation
  * [[https://docs.google.com/spreadsheets/d/1QlaeJ4hME5J6iZWzPmfPFsq5aKwTP3a-1Rd9sqKIExM/edit?usp=sharing|Parameters for simulation]]
   * Shared with Google spread sheet (Browsing and commenting are permitted. Please contact to Okutomi for editing permission.)
   * Under checking the parameters to be more realistic based on measurements and drawings
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Next meeting: 2016/7/5 13:00  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5105|[2016.08.15] Measurements of Standard Filter]]
  . Data of weight, optimal load, GAS resonant frequency, keystone height
  . Combination of the standard filters for Type-A with ID
   * X end: 3-2(F1), 2-2(F2), 1-4(F3)
   * Y end: 3-3(F1), 2-1(F2), 1-3(F3)
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= Type-A Meeting on 2016/6/21 =
2016/6/21 13:00 - 14:00 by Skype		  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5707|[2016.09.30] Measurements of BF LVDT Prototype]]
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5099|[2016.11.15] Bottom filter optimal wight re-measurement]]
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Participants: Takahashi, Ishizaki, Sato -----
== Electronics ==
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=== Minutes ===
 0-1 Assembly model (Ishizaki)
  * Made the test setup.
 0-2 Simulation (Okutomi)
  * Deadline: The end of June
 2-3 Setting of cross chamber (VAC)
  * Work: From 8th July, presence on 11th.
 3-5 ACC preparation (Sato)
  * Make working space in the 20m lab on 27th June.
 4-3 Standard filter (Hirata)
  * Assembly of FR and measurement: by August for 6 sets.
 4-5 Procurement of magnets (Takahashi)
  * Size: 13mm, 72PSC for each
 5-1 Manufacturing of blade (Takahashi)
  * Cutting: 6 blades by July + 6 blades by Sep.
 5-6 Design of damper (Sato)
  * Device: The last one was too small, actually about 125mm. Design for vertical as well.
 6-1 Design of EQ stop (Ishizaki)
  * Modeling: 3D model for the test setup was build.
 6-3 Test of prototype
  * Frame lock: Delivered by 24th.
  * Other parts (rod, adjuster, bolts) will be ordered.
 6-4 Design of release sensor (Sato)
  * Base: Making in ATC.
  * Plate additional machining: Ordered.
  * Circuit: LED will be tested.
 8-1 Design of dummy payload (Okutomi, Ishizaki)
  * Cartoon: Okutomi should send to Ishizaki soon!
  * Mirror holder: Refer the mirror box for PR.
 9-1 Establishment of procedure (Takahashi, Okutomi)
  * Test plan: Check FR for 2 BFs.
 9-3 Cable assembly
  * Number of cables: Thermocouples are added. Ask Tomaru total number.		  * General
  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/DGSrack|DGS rack layout]]
  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/DGSchannel|ADC/DAC channel assignment]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5193|List of drivers for VIS]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=817|Lecture of Standalone Digital system for VIS]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1737|ADC board]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1736|DAC board]]
  * Quick information
   * ADC accepts +/- 10 V differential =
 * LVDT
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2826|LVDT Driver]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2117|LVDT-coil distributor]]
  * LVDT-coil combiner
 * Accelerometer
  * ACC driver
 * Geophone
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1466|Preamp circuit]]
 * Coil-magnet actuator
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3502|High power coil driver]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3506|Low power coil driver]]
 * Optical lever
  * QPD board
 * Stepper motor
  * Stepper motor driver
 * Picomotor
  * Picomotor driver
 * Cabling
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7587|In-Vacuum cables (hand made)]]
  * Type-A suspension cabling O4 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13378|<EX>]], [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13375|<EY>]], [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13404|<IX>]], [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=13406|<IY>]]
  * [[https://www.dropbox.com/sh/hkpunq1fjp7nduc/AAAzCL7GbeWAjGiGW8j3zDX2a?dl=0|Photos at installation (link to KAGRA dropbox)]]
  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/Feedthough|Cable assignment at feedthough and filter side]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9839|Result of continuity check and resistance measurement at installation]]
  * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11625|Pin assignment at feedthrough]]
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Next meeting: 2016/6/28 13:00
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= Type-A Meeting on 2016/6/14 =
2016/6/14 13:00 - 15:00 @ Room 210
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Participants: Takahashi, Ishizaki, Sato, Okutomi  -----
== Members of Type-A Team ==
 . Ryutaro TAKAHASHI (Leader)
 . Naohisa SATO
 . Lucia TROZZO
 . Yoshinori FUJII
 . Koki OKUTOMI
 . Hideharu ISHIZAKI
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=== Minutes ===
 0-1 Assembly model (Ishizaki)
  * Step: From EQ stop, next with chamber.
 0-2 Simulation (Okutomi)
  * Problem: Conversion to Simulink was ok. The structure of control has a problem in Matlab. Reconstructing now.
 3-5 ACC preparation (Sato)
  * Space: Make working space in the 20m lab.
 5-1 Manufacturing of blade (Takahashi)
  * Design: 5 blades are used for 200kg load.
 5-6 Design of damper (Sato)
  * Device: Asking design of LVDT-Act. to VIRGO. The device is located at the center of mass.
 6-1 Design of EQ stop (Ishizaki)
  * Structure analysis: Two cases were calculated. Share stress was 1/6 of limit, and principal stress was 1/7 of limit respectively in the maximum case.
  * Modeling: Making with consideration of procedure and tools.
  * Frame lock: Maximum stress was 160MPa with thickness of 30mm (limit 180MPa).
 6-4 Design of release sensor (Sato)
  * Position: Inner side of the stage. Need to addtional machining to the EQ stop plate.
  * Electronics: Circuit is simple in the test (handmade).
 8-1 Design of dummy payload (Okutomi, Ishizaki)
  * Condition: 25cm mirror, alignment by moving mass. Make a cartoon.
  * Actuation: Length control is necessary? Check PZT actuator.
 9-1 Establishment of procedure (Takahashi, Okutomi)
  * Test plan: Prepare for 2 sets of release sensors. Check FR for 2 BFs.		 == Meeting ==
 * NAOJ VIS Meeting [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/MeetingNAOJ|Minutes]]
 * Type-A team meeting [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/Meeting|Minutes]]
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Next meeting: 2016/6/21 13:00 == See also ==
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4005|JGW-E1504005]]: VIS Document and Drawing Tree (Type-A)
 * [[https://www.dropbox.com/home|KAGRA Dropbox]] > [[https://www.dropbox.com/home/Subsystems|Subsystems]] > [[https://www.dropbox.com/home/Subsystems/VIS|VIS]] > [[https://www.dropbox.com/home/Subsystems/VIS/TypeA|TypeA]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/CRY|KAGRA/Subgroups/CRY]]

<<Navigation(children)>>

Information of the Type-A Seismic Attenuation System (SAS). This page wants information about not only room-temperature parts but also cryogenic vibration isolation system.

Status

Contents

  1. Status
  2. Drawings
    1. Tower
    2. Cryogenic Payload
  3. Documents
    1. Reports
    2. Installation Procedure
    3. Measurement and Analysis
  4. Electronics
  5. Members of Type-A Team
  6. Meeting
  7. See also

TypeAoverview TypeAdesign

Drawings

  • Type-A SAS whole assy
  • Vacuum chamber

Tower

Cryogenic Payload

  • Cryo-Payload assy
  • Platform (PF)
  • Marionette (MT)
  • Marionette Recoil Mass
  • Intermediate Mass (IM)
  • Intermediate Recoil Mass
  • Test Mass (TM) - Sapphire Mirror
  • Recoil Mass
  • Heat link
    • Heat link suspension

Documents

Reports

Installation Procedure

Measurement and Analysis

Electronics

Members of Type-A Team

  • Ryutaro TAKAHASHI (Leader)
  • Naohisa SATO
  • Lucia TROZZO
  • Yoshinori FUJII
  • Koki OKUTOMI
  • Hideharu ISHIZAKI

Meeting

See also

/DGSchannel   /DGSrack   /ETMX   /ETMY   /Feedthough   /ITMX   /ITMY   /Meeting   /WorkingLog   /WorkingLog/dir_information  

KAGRA/Subgroups/VIS/TypeA (last edited 2021-11-02 17:29:27 by naohisa.sato)