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AdV-ISC (Commissioning up to first full interferometer lock)
mantovani, vardaro, masserot - 12:24 Wednesday 13 March 2024 (63591) Print this report
Etalon set point automatic scan implemented

In order to be able to better cover the whole parameter space for NI and WI etalon we have implemented the possibility to add a noise (i.e. a ramp or a sine) on the set point for the Etalon control.

Example for NI:


# name - unit - rampTime - sampFreq - value
ACL_CONST_CH        "offset_noise_ni"             "V"    1.    GENE_FREQ    0
# nameOut - unit - rampTime - sampleRate -         ramp ampl - ramp Freq - zero(%) - rise(%) -  one(%) - fall(%) - offset(unit)
ACL_RAMP_CH         "ramp_noise_ni"            "V"    1.    GENE_FREQ    0.01     1             0.001 49.999             0.001 49.999         0.00
# nameOut - unit - rampTime - sampleRate -         sinus ampl - sinus Freq(Hz)  - phi0(rad) - offset(unit)
ACL_SINEWAVE_CH     "sin_noise_ni"                "V"    1.    GENE_FREQ    0.0         1e-6     0.0            0.0
# nameOut - unit - rampTime - sampleRate -         ampl - seed
ACL_NOISE_CH         "white_noise_ni"             "V"    1.    GENE_FREQ    0.0     0

# nameOut - Unit - rampTime(s) - sampling Frequency(Hz) - nameIn - slope - FilterName # Input sampling freq(Hz) -  Working Filter freq(Hz)
ACL_FILTER_CH       "color_noise_ni"            ""    1    GENE_FREQ    "white_noise_ni"    1     ETALON_NOISE_FLT

# nameOut - unit - rampTime    - list weights/channels - Noise at the GENE_FREQ frequency
ACL_SUM_CH             "NOISE_NI"     "V"    1.                0.    offset_noise_ni     0.    ramp_noise_ni    0.    sin_noise_ni    0    white_noise_ni        0.0 color_noise_ni

ACL_SUM_CH             "NI_RH_SET_NOISE"     "V"    1.                1.    NI_RH_SET     0.    NOISE_NI
ACL_OP_CH   NI_RH_IN    "C"    "sum-"       NI_RH_SET_NOISE   NI_RH_INPUT

Now the NI_RH_SET_NOISE is also available on the data.

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