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=== Status === | == Status == |
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=== Room-temperature parts === | === Tower === |
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* [[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]] |
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=== Cryogenics === | === Cryogenic Payload === |
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* 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) |
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* [[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=817|Lecture of Standalone Digital system for VIS]] [<bgcolor="#00FF00"> ● <"#00FF00">] * [[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 = |
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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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* [[https://www.dropbox.com/s/pirv8eyijdmwnd8/Type-A%20%E3%82%B1%E3%83%BC%E3%83%96%E3%83%AB%E3%83%97%E3%83%A9%E3%83%B3_20170407.pptx?dl=0|Cabling configuration (last update: 4/7)]] | |
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. Tetsuya SHINDO (from MIRAPRO) | . FURUYA (from MIRAPRO) |
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. Koseki MIYO |
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
Drawings
- Type-A SAS whole assy
- Vacuum chamber
Vertical (IXV, EXV, IYV, EYV)
- Cryostat
Tower
- Magnetic Damper (MD)
- Bottom Filter (BF)
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
- Type-A Control 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)
Electronics
- General
Lecture of Standalone Digital system for VIS [<bgcolor="#00FF00"> ● <"#00FF00">]
- Quick information
- ADC accepts +/- 10 V differential =
- LVDT
- LVDT-coil combiner
- Accelerometer
- ACC driver
- Geophone
- Coil-magnet actuator
- 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
- FURUYA (from MIRAPRO)
- Koki OKUTOMI
Meeting
See also
JGW-E1504005: VIS Document and Drawing Tree (Type-A)
KAGRA Dropbox > Subsystems > VIS > TypeA