Today I have been working on porting the ESD Charging measurement automation scripts that Bryan Barr et. al. created at LLO. This has now been completed. I am adding some modifications to make the code more general.
I have run the code over all the ESD quadrants on the only mass in vacuum (ETMY) and for several offset values with excitation signal at 4Hz and amplitude of 60000 and 120000 counts. The obtained analysis results did not make any sense so I looked the data more in detail and noticed that the oplev did not seem to be affected by the ESD driving signal. To be sure that I was not making any mistake I used awggui to excite the ESD in pitch and yaw such that they would excite the respective pendulum modes (at 0.56 and 0.6 Hz) identified here: https://awiki.ligo-wa.caltech.edu/aLIGO/Resonances/LHO. Nothing was observed on 'oplev'. Tomorrow I will have to verify that the ESD is actually physically connected.