[Gavin, Jenne]

As part of a study on Acoustic Modal Loss Tomography of the Test Masses I created a python port of the Matlab script used to analyse the Q of the 10.430 kHz PI mode (alog 50550). This script has been generalised for any resonant mode as two functions which can be imported to any python script. The motivation behind this change was in large part to add the functionality of Python to this analysis.

The ringdown function will analyse the H1:OMC-PI_DCPD_64KHZ_AHF_DQ channel and evaluate the Q of the resonant mode at the date, time and bandpass frequencies specified. The ringdown_RMS function will analyse any H1:SUS-PI_PROC_COMPUTE_MODE#_RMSMON channel and evaluate the Q of the resonant mode for the date, time and RMS mode channel specified.

These functions should allow fast, easy analysis of PI Q measurements conducted in the future for any resonant modes of interest chosen.