[YamaT, Ushiba]
We found the strange behaviour (drift) of ITMX_IP_ACCBLEND_ACC{L,T,Y}_OUT, geophone signals, today.
As it can be seen in fig1, the drift started two days ago, which is the date of LVDT driver exchange (klog18398).
After we found the problem, we checked the spectra of each geophone but no significant difference can be found (fig2).
So, we once clear the histroy of filter banks and see what happens during the weekend.