Diff for "KAGRA/Subgroups/VIS/TypeA"

Differences between revisions 128 and 138 (spanning 10 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

Status
Drawings
1. Tower
2. Cryogenic Payload
Documents
Electronics
Members of Type-A Team
Meeting
See also

Drawings

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

Tower

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

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

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
  - X end: 3-2(F1), 2-2(F2), 1-4(F3)
  - Y end: 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
- List of drivers for VIS
- Lecture of Standalone Digital system for VIS
- ADC board
- DAC board
- Quick information
  - ADC accepts +/- 10 V differential =
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
- Cabling configuration (last update: 4/7)

Members of Type-A Team

Ryutaro TAKAHASHI (Leader)
Hideharu ISHIZAKI
Naohisa SATO
FURUYA (from MIRAPRO)
Koki OKUTOMI

Meeting

NAOJ VIS Meeting Minutes
Type-A team meeting Minutes

-  ⇤ ← Revision 128 as of 2017-04-14 11:09:38 → 
  Size: 6214
  Editor: KokiOkutomi
  Comment:
+   ← Revision 138 as of 2017-07-24 12:49:27 → ⇥
  Size: 6143
  Editor: KokiOkutomi
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 4:
-=== Status ===
+== Status ==
 Line 13:
-[[TypeAdesign|{{attachment:figTypeAsasNamed2.png||width=25%,align="right"}}]]
+[[TypeAdesign|{{attachment:figTypeAsasNamed3.png||width=25%,align="right"}}]]
 Line 22:
-=== Room-temperature parts ===
+=== Tower ===
 Line 24:
- * [[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=6918|Pre-Isolator]]
 Line 38:
-=== Cryogenics ===
+=== Cryogenic Payload ===
 Line 67:
-   * Heavy set: 3-2(F1), 2-2(F2), 1-4(F3) 
   * Light set: 3-3(F1), 2-1(F2), 1-3(F3)
+   * X end: 3-2(F1), 2-2(F2), 1-4(F3)
   * Y end: 3-3(F1), 2-1(F2), 1-3(F3)
 Line 108:
- . Tetsuya SHINDO (from MIRAPRO)
-Line 111:
+Line 110:
- . Koseki MIYO