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== Links ==
[[LCGT/subgroup/Electronics/Meetings|Meetings]]

||<style="background-color: #E08030;text-align: center;">'''Members'''||<style="background-color: #E08030;text-align: center;">'''Meetings'''||<style="background-color: #E08030;text-align: center;">'''Logs'''||<style="background-color: #E08030;text-align: center;">'''Documents'''||<style="background-color: #E08030;text-align: center;">'''Projects'''||
||[[KAGRA/Subgroups/AEL/Members|Members of AEL]]||[[KAGRA/Subgroups/AEL/meeting|AEL meeting]]||[[http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/electronics/|AEL Blog]]||[[KAGRA/Subgroups/AEL/Documents|AEL related documents]]||DC power supply||
||[[KAGRA/Subgroups/Members|KAGRA subgroup members]]||[[http://gwcenter.icrr.u-tokyo.ac.jp/conference/calendar|KAGRA calendar]]||[[http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/|KAGRA blog]]||[[KAGRA/Terminology#DGS|KAGRA Acronyms]]||D-SUB cable||
|| || ||[[KAGRA|KAGRA wiki]]||[[http://gwdoc.icrr.u-tokyo.ac.jp|JGWdoc]]||RF cable||
|| || || ||[[http://www.google.com/cse/home?cx=017444024272121679524:7p2pwvc2k2c|JGW document search by google]]||

||||||||||<style="background-color: #E08030;text-align: center;">'''Circuits'''||
||<style="background-color: #F0B0B0">'''VIS'''||<style="background-color: #F0B0B0">'''IOO'''||<style="background-color: #F0B0B0">'''MIF'''||<style="background-color: #F0B0B0">'''AOS'''||<style="background-color: #F0B0B0">'''DGS'''||
||[[KAGRA/Subgroups/DGS/Projects/LVDT|LVDT driver]]||[[KAGRA/Subgroups/AEL/Projects/TTFSS|TTFSS]]||RF PD||[[KAGRA/Subgroups/DGS/Projects/OpLev|Optical lever]]||[[KAGRA/Subgroups/DGS/Circuits/AntiAliasImage|AA/AI filter]]||
||[[KAGRA/Subgroups/DGS/Projects/CoilDriver|Coil driver]]||PMC servo||I&Q demodulator|| ||whitening filter||
||[[KAGRA/Subgroups/DGS/GEOPhone|GEO phone interface]]|| || || || ||
||[[KAGRA/Subgroups/DGS/Projects/SteppingMotor|stepping motor]]|| || || || ||


== Circuits for subsystem ==
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== DC Power Supply ==
== VIS ==
<<Anchor(VIS)>>
=== LVDT driver ===
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1253|D1201253]] Test Circuit of Voice Coil Driver
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1253|D1201251]] Presentation for MIF meeting
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=1255|D1201255]] LVDT-Actuator Driver Electronics
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=1467|JGW-D1201467]]: LVDT and Voice Coil Drivers Electric Circuits (1/5/2013

 * [[attachment:KAGRA/Subgroup/AEL/VIS/LVDT.zip|LVDT pictures]]

==== 2013/2/15 meeting (高橋、宮川、上泉) ====
 *何ch必要か -> 100ch -> 基板24枚
  * 8ch単位で一箱 -> 計12箱
 * 基板はニケフから購入することを考える
  * 基板の箱詰めを考える
   * 安定化電源内臓のため、外部から18Vを直結
   * インターフェース -> 要検討
    * 位相ねじにフロントパネルからアクセス(穴をあける)
    * テストピンが必要かどうか確認
 * 変調信号出力を箱の中に内臓
  * 変調周波数は固定(TAMAの回路図参考)
  * 外部から変調周波数を入れるのも作っておく
 * 箱詰めした回路の完成8月完成を目処

----
== Common Circuits or related things ==
=== DC Power Supply ===
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== RF electronics == === RF electronics ===
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== Audio Frequency electronics == === Audio Frequency electronics ===
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== Safety Control == === Safety Control ===

Analog Electronics

Members

Meetings

Logs

Documents

Projects

Members of AEL

AEL meeting

AEL Blog

AEL related documents

DC power supply

KAGRA subgroup members

KAGRA calendar

KAGRA blog

KAGRA Acronyms

D-SUB cable

KAGRA wiki

JGWdoc

RF cable

JGW document search by google

Circuits

VIS

IOO

MIF

AOS

DGS

LVDT driver

TTFSS

RF PD

Optical lever

AA/AI filter

Coil driver

PMC servo

I&Q demodulator

whitening filter

GEO phone interface

stepping motor

Circuits for subsystem


VIS

LVDT driver

2013/2/15 meeting (高橋、宮川、上泉)

  • 何ch必要か -> 100ch -> 基板24枚

    • 8ch単位で一箱 -> 計12箱

  • 基板はニケフから購入することを考える
    • 基板の箱詰めを考える
      • 安定化電源内臓のため、外部から18Vを直結
      • インターフェース -> 要検討

        • 位相ねじにフロントパネルからアクセス(穴をあける)
        • テストピンが必要かどうか確認
  • 変調信号出力を箱の中に内臓
    • 変調周波数は固定(TAMAの回路図参考)
    • 外部から変調周波数を入れるのも作っておく
  • 箱詰めした回路の完成8月完成を目処


DC Power Supply

RF electronics

Audio Frequency electronics

  • As a general rule, differential signal transfer should be applied.
  • Dsub 9-pin connector and cable
  • Digital front-end circuits

    • Anti-Alias / Anti-Imaging filter
    • Differential signal buffer Amp.
    • Whitening / De-whitening filter
  • Coil driver

  • AF photo detector for DC readout

  • Optical lever sensor

  • Ultra-Low-Noise Amp.

Safety Control

  • Mechanical shutter for photo detector protection

  • Interlock switch

KAGRA/Subgroups/AEL (last edited 2020-01-31 14:07:44 by MasahiroKamiizumi)