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MIF (General)
takaaki.yokozawa - 11:26 Monday 08 July 2024 (30297) Print this report
IRY spectrum characterization
I performed the IRY spectrum characterization with the same way of the klog30110.

The differences from IRX are,
1. Cannot see the peaks around 7.5 Hz
2. Appeared the several peaks around 4.5, 9 and 14 Hz.
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hirotaka.yuzurihara - 15:59 Tuesday 09 July 2024 (30322) Print this report

I performed same cross check as klog30321 and I didn't find the critical mistake. Actually, the the condition of boost filters and gain values are same as IRX case. I confirmed the necessary dewhitening filters at the measured time was turned on correctly.
As next step, I will convert the ADC noise to overlay this plot.

hirotaka.yuzurihara - 16:31 Tuesday 23 July 2024 (30529) Print this report

To evalute the input equivalent noise from the ADC noise, I performed the same procedure as klog#30526. I used the same ADC noise data, same gain values and same filters.
Figure shows the evaluated the noise projection. All the projected ADC noise are located below the spectrum, except for 145 Hz (fig) and 375 Hz (fig) of LSC-CARM_SERVO_MIXER_DAQ

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