Diff for "KAGRA/Subgroups/VIS/TypeA"

Differences between revisions 117 and 124 (spanning 7 versions)

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
Drawings
1. Room-temperature parts
2. Cryogenics
Documents
Electronics
Members of Type-A Team
Meeting
See also

Drawings

Type-A SAS whole assy
Vacuum chamber
- Vertical (IXV, EXV, IYV, EYV)
- Cryostat

Room-temperature parts

Earthquake stop - Security frame
Pre-Isolator
Magnetic Damper (MD)
Standard Filter (SF)
Bottom Filter (BF)
- BF LVDT and Attachments
Fishing rod
Maraging wire
Dummy Payload
Hoist's tools

Cryogenics

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

Requirements for Type-A SAS

Installation Procedure

Measurement and Analysis

Type-A Control Simulation
- 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
[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
  - Heavy set: 3-2(F1), 2-2(F2), 1-4(F3)
  - Light set: 3-3(F1), 2-1(F2), 1-3(F3)
[2016.09.30] Measurements of BF LVDT Prototype
[2016.11.15] Bottom filter optimal wight re-measurement

Electronics

General
LVDT
- LVDT Driver
- LVDT-coil distributor
- LVDT-coil combiner
Accelerometer
- ACC driver
Geophone
- Preamp circuit
Coil-magnet actuator
- High power coil driver
- Low power coil driver
Optical lever
- QPD board
Stepper motor
- Stepper motor driver
Picomotor
- Picomotor driver
Cabling

Members of Type-A Team

Ryutaro TAKAHASHI (Leader)
Hideharu ISHIZAKI
Naohisa SATO
Tetsuya SHINDO (from MIRAPRO)
Koki OKUTOMI
Koseki MIYO

Meeting

NAOJ VIS Meeting Minutes
Type-A team meeting Minutes

-  ⇤ ← Revision 117 as of 2017-01-27 15:35:30 → 
  Size: 5560
  Editor: KokiOkutomi
  Comment:
+   ← Revision 124 as of 2017-03-27 16:24:01 → ⇥
  Size: 5938
  Editor: KokiOkutomi
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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- * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/WorkingLog|Working log]]
+=== Status ===
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+ * [[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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+  * [[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]]
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+ * Geophone
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1466|Preamp circuit]]
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+ . Tetsuya SHINDO (from MIRAPRO)
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-== Schedule ==
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4792|Task list]]
+ . Koseki MIYO