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=== Acoustic injection to REFL table === == Acoustic injection to REFL table ==

 * Date : 7th Mar. 2020
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13382 | klog13382]]
 * After changing the sampling rate of the portable PEMs
 * IMC output power 3.4W
 * REFL PDA1DC ~7mW
 * injection time : 1267565800-1267565900
 * silent run : 1267565900-1267566200

 * Results : [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13415|13415]]
  * There seems to be several peaks
   * 250Hz, 265Hz, 274Hz, 276Hz, 279Hz, 282Hz, 296Hz
    * Hint in the ISS table(QPD1 pit)?
   * 320Hz(floor), 332Hz,
    * Hint in the ISS table(QPD1 pit)?
   * 350-370Hz, 394Hz
    * PR3 oplev yaw?
   * 510-530Hz
    * Similar behavior in the IMC refl accelerometer (Hint in the IMC refl)

[[attachment:13407_20200309024834_202003096.png|{{attachment:13407_20200309024834_202003096.png|Noise projection of acoustic injection to REFL table|width="600"}}]]



== Acoustic injection to POP table amd PR2 ==

 * Date : 11th Mar. 2020
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13458 | klog13458]]
 * IMC output power 3.0W
 * REFL PDA1DC ~8mW
 * injection time : 1267904400 - 1267904500
 * silent run : 1267904600-1256904700

 * Results : [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13464|klog13464]]
  * 75Hz
  * 330-400Hz
  * 710-720Hz
  * We don't have a hint for them

 [[attachment:13464_20200311015833_202003115.png|{{attachment:13464_20200311015833_202003115.png|Noise projection of acoustic injection to POP table|width="600"}}]]

Summary of results for the acoustic injection

  • Yokozawa injected the better interferometer condition
  • Washimi-san evaluated the noise projection

Acoustic injection to REFL table

  • Date : 7th Mar. 2020

  • klog13382

  • After changing the sampling rate of the portable PEMs
  • IMC output power 3.4W
  • REFL PDA1DC ~7mW
  • injection time : 1267565800-1267565900
  • silent run : 1267565900-1267566200

  • Results : 13415

    • There seems to be several peaks
      • 250Hz, 265Hz, 274Hz, 276Hz, 279Hz, 282Hz, 296Hz
        • Hint in the ISS table(QPD1 pit)?
      • 320Hz(floor), 332Hz,
        • Hint in the ISS table(QPD1 pit)?
      • 350-370Hz, 394Hz
        • PR3 oplev yaw?
      • 510-530Hz
        • Similar behavior in the IMC refl accelerometer (Hint in the IMC refl)

Noise projection of acoustic injection to REFL table

Acoustic injection to POP table amd PR2

  • Date : 11th Mar. 2020

  • klog13458

  • IMC output power 3.0W
  • REFL PDA1DC ~8mW
  • injection time : 1267904400 - 1267904500
  • silent run : 1267904600-1256904700

  • Results : klog13464

    • 75Hz
    • 330-400Hz
    • 710-720Hz
    • We don't have a hint for them

    Noise projection of acoustic injection to POP table

KAGRA/Subgroups/PEM/MAR2020/Acoustic_result (last edited 2020-03-12 03:47:19 by TakaakiYokozawa)