Abstract:
Spectra of each sensors were checked.
Though there is a problem of H2 geophone, which has been already known, the other sensors seem fine.
Detail:
Figure 1 to 5 show the spectra of sensors on IP, BF, GAS, MN, IM stages, respectively.
H2 geophones on IP stage has a larger noise than the others but it is due to the ADC problem (klog21097 and its comments).
The other spectra, they seem fine compared to ETMY spectra.
Note:
We used spectra of REFNUM 0025 for this check.
Data were stored at /kagra/Dropbox/Measurements/VIS/SPECTRA/0/