Interferometer_sensitivity_studies (General)fiori - 7:50 Saturday 04 July 2009 (23477)
Print this reportcoherences of 88Hz bumpThe bumps at 88Hz are coherent with some signals which seem to me all related to longitudinal lock, but at NE and at WE:
Figure 1 (NE) and Figure 2 (WE). Looking at spectra seems that the bumps are seen more clearly on Ca_NE_RM_* signals (Figure 3). Hope this can give an hint for further investigations.
Images attached to this report
Comments to this report:
Vajente - 9:07 Saturday 04 July 2009 (23478)
Print this reportAll these signals are directly connected to the DARM longitudinal correction, which is computed from B1_ACp. So, these signals are equal to B1_ACp plus some other noise.
Comments to this report:
Vajente - 10:00 Saturday 04 July 2009 (23479)
Print this reportTo be precise, coils up and down are used at NE/WE but coils left and right are not. So if there is coherence with them this might contain some information
