• KAGRA
• Subgroups
• CAL
• CAL_Meeting
• 20191113

2019/11/13

18:30 JST (Japan) 17:30 CST (Taiwan) 10:30 CET (Geneva)

• Yuki and Task managers: Schedule slide

• Discussion of Pcal long time stability (Koki and Yuki)
• Discussion of TF measurement for Y-end driver (Darkhan and Yuki)
• Measurement result of density distribution of Gcal (Pang)

Memo

• Online:
  • - IR X-arm lock comes back yesterday. - OLTF measurement (Low frequency) - unknown time delay (due to the high freq pole???) - DARM open loop(Current): measureing bw 10 - 30 Hz

    - Coil inductance -> Measurement?(Ask Takayuki)

• Low Latency
  • - Developing low latency with time dependency - Test will start from weekend (maybe). - How to estimate the smoothing effect? - We employ oplev infomations. Now, we are installing the sensors.
• Offline
• Error estimation
  • G1910916-v1 Calibration error study I -AAAI-
  • G1910986-v1 Calibration error study II -Arm length-
  • G1910919-v2 Calibration error study III -Sensing-
  • G1910985-v1 Calibration error study IV -Photon Calibrator-
  • G1910957-v1 Calibration error study V -TypeA-
  • G1910982-v1 Calibration error study VI -Coil driver-
  • G1910984-v1 Calibration error study VII -Actuator-
• FSM
  • New idea of optical gain measurement
• DARM
  • Man power assignment (Darkhan + Someone)
• Injection
  • how to confirm the time delay
• Pcal
  • Keithley 2100
• Gcal

ToDo list

• Instruments:

  • Camera analysis (a and b vector) -> Yuki

  • Optical efficiency -> Yuki, Ito

  • WSK measurement -> Ito, Yuki

  • Overplot x_pcal -> Yuki

  • Verification test(Common rejection etc.) -> Yuki

• DARM model

  • Filter analysis (Amp, Phase, Coh, and Residual) -> Yuki

  • Ver.1 Subway map -> Yuki, Y.Takahiro, S.Takahiro, Darkhan

• Online (Site)

  • Management of filters -> Y.Takahiro

  • Management of Measured results ->Wataru, Y.Takahiro

  • FSM -> Wataru

• Error estimation

  • DARM sigma test in High latency -> Yuki, S.Takahiro

• Low latency

  • Line demodulation -> S.Takahiro, Darkhan, Y.Takahiro

  • time dependency correction -> S.Takahiro, Darkhan,

• High latency

  • High latency pipeline -> Yuki, Wu-Chang

  • Long time monitor ->Wu-Chang

  • Event frame -> Wu-Chang

  • DARM sigma -> Yuki, T.Sawada

  • H_pcal(SLM tools) -> Darkhan

• Injection

  • Swept sine and sine gauss -> T.Sawada

  • time delay measurement -> T.Sawada

  • CBC injection ? -> T.Sawada

• GCal
  • Total time measurement (T=?): Pang, Yuki
  • Vibration peak(Hz, …): Pang, Yuki
  • Vacuum and Temp. test(mbar, C): Pang,Yuki
  • Stability of poles(Δx): Pang, Yuki
  • Mass distribution test(Δm): Pang, Yuki
  • Synchronization test (Δθ,Δω): Pang, Yuki
• Duty
  • Line test (Every day; when we lock the IFO with FPMI condition)
  • WSK measurement(Every week)
    • 11/11-(X) Y.Takahiro、Ito
    • 11/18-(X,Y) Yuki、S.Takahiro
    • 11/25-(X) Darkhan、Yokozawa
    • 12/2-(X) Ito、Y.Takahiro
    • 12/9-(X,Y) S.Takahiro、Yuki
    • 12/16-(X) Tatsuki, Ito