• KAGRA
• Subgroups
• AEL

Analog Electronics

Meeting

2013/9/2 15:00~

• Files:

• Minutes

2013/8/19 15:00~

• Files:

  • Oplev top view

  • Oplev pre-amp

  • Whitening filter

• Minutes

2012/11/9 10:00~ How to make a circuit using AEL

• Files: AELの方針とAELを利用しての回路制作

• Minutes

Circuits for subsystem

VIS

LVDT driver

• D1201253 Test Circuit of Voice Coil Driver

• D1201251 Presentation for MIF meeting

• D1201255 LVDT-Actuator Driver Electronics

• JGW-D1201467: LVDT and Voice Coil Drivers Electric Circuits (1/5/2013

• 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

• Bipolar 24 Volt power supply

  • 24V power supplier / selection report

• Connector and cable

  • Cables for DC24V selection report

• +15V regulator (ultra low noise)

• High voltages

  • QPD vias voltage (In TAMA case, 180V)

  • Coil driver (LIGO High-Voltage type: >140V)

  • PZT driver (DC >100V or AC power supply)

RF electronics

• Oscillator

  • LCGT/subgroup/Electronics/SG010M3R0GB_test_sheet.pdf

  • CLIO related

  • Wenzel 500 of TAMA

    • reference: LO signal distribution for TAMA RSE

• RF Photo detector

  • N. Mio JPCS, 122, (2008) 012014

  • H. Grote RSI, 78, (2007), 054704

• RF QPD detector

• Demodulator

• EOM driver

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.

  • NF SA-200F3

Safety Control

• Mechanical shutter for photo detector protection

• Interlock switch