Differences between revisions 1 and 16 (spanning 15 versions)
⇤ ← Revision 1 as of 2018-05-04 22:56:42 →
Size: 113
Editor: KeikoKokeyama
Comment:
← Revision 16 as of 2018-05-05 01:34:10 → ⇥
Size: 1966
Editor: TakaakiYokozawa
Comment:
Deletions are marked like this. Additions are marked like this.
Line 4: Line 4:

 * MICH LOCK flag
  * K1:GRD-LSC_LOCK_STATE_N (16Hz sampling)
   * 1000 is operation mode

 * Injection flag
  * (1) K1:CAL-CS_CALHWI_CW_INJ_SW (16Hz sampling, on:1 off:0)
   * Hardware injection switch of CW injection (used in injection flag)
  * (2) K1:CAL-CS_CALHWI_HWINJ_SW (16Hz sampling, on:1 off:0)
   * Hardware injection master switch (used in injection flag)
  * (3) K1:CAL-CS_CALHWI_(X/Y/BS)_GAIN (16Hz sampling)
   * Signal gain to X, Y, BS
  
 * Injection signal
  * (4) K1:CAL-CS_CAL_HWI_HARDWARE_DQ (16kHz sampling)
  * Total amplitude of Hardware injection(CBC+CW+TEST)

 * So, total amplitude of CW injection is
  * (1)*(2)*(3)*(4) [count]
  * But, we should apply transfer function between injection port and displacement of each test mass when evaluating the TM displacement
   * time delay between cal model and BS model (~61usec)
   * digital anti-imaging filter
   * time delay in the BS IOP(shared memory for DAC output) (~61usec)
   * time delay in the DAC output (There is unknown issue) (~60usec???)
    * The detail is summarized in ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=6924 | JGWDoc6924]])
   * analog anti-imaging filter
   * Coil driver(The transfer function is still investigated, with connection of coil)
   * Force to length transfer function(1/f^2 for higher frequency)
   * Actuator efficiency (Large measurement uncertainties due to fluctuation of optical gain)

 * Injection method
  * k1script:/users/yokozawa/inj_phase1/inj_dat.sh
  * k1script:/users/yokozawa/inj_phase1/inj_dat2.sh
   * Prepare the dat files before injection, scp from other PC, using awgstream we injected signal.

 * Injection waveforms
  * 15 LIGO injection pulsars([[https://losc.ligo.org/s/injections/o1/cw_injections.html|LIGO O1 CWINJ]])
  * 6 continuous sine

Summary of Continuous Wave Injection at bKAGRA phase1 operation

  • Worker : T.Yokozawa, A.Miyamoto, T.Sawada
  • MICH LOCK flag
    • K1:GRD-LSC_LOCK_STATE_N (16Hz sampling)
      • 1000 is operation mode
  • Injection flag
    • (1) K1:CAL-CS_CALHWI_CW_INJ_SW (16Hz sampling, on:1 off:0)
      • Hardware injection switch of CW injection (used in injection flag)
    • (2) K1:CAL-CS_CALHWI_HWINJ_SW (16Hz sampling, on:1 off:0)
      • Hardware injection master switch (used in injection flag)
    • (3) K1:CAL-CS_CALHWI_(X/Y/BS)_GAIN (16Hz sampling)
      • Signal gain to X, Y, BS
  • Injection signal
    • (4) K1:CAL-CS_CAL_HWI_HARDWARE_DQ (16kHz sampling)
    • Total amplitude of Hardware injection(CBC+CW+TEST)
  • So, total amplitude of CW injection is
    • (1)*(2)*(3)*(4) [count]
    • But, we should apply transfer function between injection port and displacement of each test mass when evaluating the TM displacement
      • time delay between cal model and BS model (~61usec)
      • digital anti-imaging filter
      • time delay in the BS IOP(shared memory for DAC output) (~61usec)
      • time delay in the DAC output (There is unknown issue) (~60usec???)
      • analog anti-imaging filter
      • Coil driver(The transfer function is still investigated, with connection of coil)
      • Force to length transfer function(1/f^2 for higher frequency)
      • Actuator efficiency (Large measurement uncertainties due to fluctuation of optical gain)
  • Injection method
    • k1script:/users/yokozawa/inj_phase1/inj_dat.sh
    • k1script:/users/yokozawa/inj_phase1/inj_dat2.sh
      • Prepare the dat files before injection, scp from other PC, using awgstream we injected signal.
  • Injection waveforms

KAGRA/Commissioning/Phase1/Operation/MeasurementsSummary/CWInjection (last edited 2018-05-07 14:53:29 by TakaakiYokozawa)