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This is the page for Type-A suspension. 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.

<<TableOfContents(3)>>

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[[TypeAdesign|{{attachment:figTypeAsasNamed1.png||width=25%,align="right"}}]]

== Drawings ==

 * 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

=== Room-temperature parts ===
 * [[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=5634|Pre-Isolator]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5636|Top Filter]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5637|Inverted Pendulum]]
  * [[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
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5635|Standard Filter]]
 * Bottom Filter
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5656|BF LVDT and Attachments]]
 * 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]]

=== Cryogenics ===
 * Cryo-Payload assy
 * Platform
 * Marionette
 * Marionette Recoil Mass
 * Intermediate Mass
 * Intermediate Recoil Mass
 * Sapphire Mirror (Test Mass)
 * Recoil Mass
 * Heat link
  * Heat link suspension

-----
== Documents ==
=== Reports ===
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5196|Requirements for Type-A SAS]]

=== 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]]
=== Measurement and Analysis ===
 * [[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
   * Heavier set: 3-2(F1), 2-2(F2), 1-4(F3)
   * Lighter set: 3-3(F1), 2-1(F2), 1-3(F3)
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5707|[2016.09.30] Measurements of BF LVDT Prototype]]

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== Electronics ==
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5193|List of drivers for VIS]]
 * 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
 * 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]]
 * Stepper motor
  * Stepper motor driver
 * Picomotor
  * Picomotor driver
 * Cabling

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== Members of Type-A Team ==
 . Ryutaro TAKAHASHI (Leader)
 . Hideharu ISHIZAKI
 . Naohisa SATO
 . Koki OKUTOMI

== Schedule ==
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792|Task list]]

== Meeting ==

 * Type-A team meeting [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/Meeting|Minutes]]

== 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)
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/CRY|KAGRA/Subgroups/CRY]]

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.


TypeAdesign

Drawings

  • Type-A SAS whole assy
  • Vacuum chamber

Room-temperature parts

Cryogenics

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


Documents

Reports

Installation Procedure

Measurement and Analysis


Electronics

List of drivers for VIS


Members of Type-A Team

  • Ryutaro TAKAHASHI (Leader)
  • Hideharu ISHIZAKI
  • Naohisa SATO
  • Koki OKUTOMI

Schedule

Task list

Meeting

See also

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