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 * Agenda
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   * Vacuum pump vibration and sound environment and its effect     * Using Bruco, I evaluated the origin of the noise source during the FPmi
    * Results are written in klog everyday
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   * Lightning issue [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10660|slide]]
   * PSL 44Hz noise hunting [[https://github.com/gw-pem/kagra-pem/issues/170|github]]
   * IMMT1 vibration [[https://github.com/gw-pem/kagra-pem/issues/175|github]]
   * Lightning issue
    * Discussion about the lightning monitor at 12th Sep.
    * monitoring the MAX/MIN magnetometer time series monitoring
    * There are lightning candidate around the evening
    * Full sampling rate time series monitoring
    * correlation between BS oplev was observed only 5th Aug.
    * PEM injection T~e-9 but 5thAug is e-6 level
    * Need very large coil
    * If we use the frame, we can make larger magnetic field
   * PSL 44Hz noise hunting
    * PSL44Hz
    * Can remove this effect. Move the 24V power supply to ouutside of the PSL room. Portable1 acc moved to white laser lack.
   * IMMT1 vibration
    * ISS cover check
    * Check the portable acc, but not detected the serious noise (structure below 40Hz), there seems no large noise structure candidate..
Line 20: Line 33:
    * Omicron was unstable now
    * Development the spectrogram tool
Line 24: Line 39:
    * PEM injection from analysis building without KAGRA DAQ
    * Easy set, easy injection
    * Select the PC there is useful injection software, and via USB or something, we can inject remotely if we set the injector to the mine
    * Discussion about the future plan this weekend
Line 33: Line 52:
    * Using the TEAC706 and KAGRA DA, he checked the vibration of the vacuum pump very carefully
    * Actually, there is large 312.5Hz noise. there is 315Hz in the PR2 vacuum pump instead of the 312.5Hz.
    * If you read the controller, you can check the rotation rate
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  * Mori   * Fujikawa
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  * Fujikawa
    * Fujikawa+Mori
    * Extract the line peak
    * Implementing the various noises
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    * Earthquake vs lockloss
    * check by the MCF seismometer
    * He found the some earthquake make lockloss
    * Investigated the lockloss vs amplitude and source of the earthquake
Line 45: Line 72:
 * PSL44Hz
 * Can remove this effect. Move the 24V power supply to ouutside of the PSL room.
Portable1 acc moved to white laser lack.
Line 49: Line 73:
 * ISS cover check
 * Check the portable acc, but not detected the serious noise, reject the candidate from optical table
Line 52: Line 74:
 * Discussion about the lightning monitor at 12th Sep.
 * monitoring the MAX/MIN magnetometer time series monitoring
 * There are lightning candidate around the evening
 * Full sampling rate time series monitoring
 * correlation between BS oplev was observed only 5th Aug.
 * PEM injection T~e-9 but 5thAug is e-6 level
 * Need very large coil
 * If we use the frame, we can make larger magnetic field
Line 61: Line 75:
 * Omicron was unstable now
Line 63: Line 76:
 * Development the spectrogram tool

 * Enkaku injection project

 * IFIとPR2付近の真空ポンプの振動を調べた
 * PR2のドライポンプはそもそもノイズレベルが大きい
 * コントローラは確認したか?

 * Fujikawa+Mori
 * Extract the line peak
 * Implementing the various noises

 * Earthquake vs lockloss
 * check by the MCF seismometer

Minute of PEM meeting

  • Date: 2019/8/28 17:00-18:00(JST)
  • Attend:Yokozawa, TTanaka, Kaihotsu, Mori, kozakai, Washimi, Fujikawa, TTanaka(Niigata), Miyoki, Ohkawa, Kokeyama
  • Agenda
    • Yokozawa
      • Coherent analysis for the FPMI
        • Using Bruco, I evaluated the origin of the noise source during the FPmi
        • Results are written in klog everyday
    • Washimi 
      • Magnetic field simulation
      • Lightning issue
        • Discussion about the lightning monitor at 12th Sep.
        • monitoring the MAX/MIN magnetometer time series monitoring
        • There are lightning candidate around the evening
        • Full sampling rate time series monitoring
        • correlation between BS oplev was observed only 5th Aug.
        • PEM injection T~e-9 but 5thAug is e-6 level
        • Need very large coil
        • If we use the frame, we can make larger magnetic field
      • PSL 44Hz noise hunting
        • PSL44Hz
        • Can remove this effect. Move the 24V power supply to ouutside of the PSL room. Portable1 acc moved to white laser lack.
      • IMMT1 vibration
        • ISS cover check
        • Check the portable acc, but not detected the serious noise (structure below 40Hz), there seems no large noise structure candidate..
    • Kozakai
      • Glitch issue
        • Omicron was unstable now
        • Development the spectrogram tool
      • Pick up the requirement to PEM for the JPS meeting
    • TTanaka
      • Preparing for the PEM injection
        • PEM injection from analysis building without KAGRA DAQ
        • Easy set, easy injection
        • Select the PC there is useful injection software, and via USB or something, we can inject remotely if we set the injector to the mine
        • Discussion about the future plan this weekend
    • Miyo
      • Seismic motion issue if there is topic
    • Okutomi
      • Shaker injection
    • Kaihotsu
      • Vacuum pump vibration and comparison between TEAC706 and chromebook
        • Using the TEAC706 and KAGRA DA, he checked the vibration of the vacuum pump very carefully
        • Actually, there is large 312.5Hz noise. there is 315Hz in the PR2 vacuum pump instead of the 312.5Hz.
        • If you read the controller, you can check the rotation rate
    • Fujikawa
      • Fujimopy
        • Fujikawa+Mori
        • Extract the line peak
        • Implementing the various noises
      • Lockloss with earthquake
        • Earthquake vs lockloss
        • check by the MCF seismometer
        • He found the some earthquake make lockloss
        • Investigated the lockloss vs amplitude and source of the earthquake
    • Yuzurihara
      • Yuzu summary page comments
    • etc

KAGRA/Subgroups/PEM/Meeting/190827/Minute (last edited 2019-08-28 03:47:20 by TakaakiYokozawa)