Reports until 19:00, Monday 04 November 2013
H1 SUS
arnaud.pele@LIGO.ORG - posted 19:00, Monday 04 November 2013 (8377)
TMSX damping

Keita asked me this morning to take a look at TMSX damping. I am not sure if it is because it is moving too much, or if it was just to make sure it's working.

In any case, damping looks to be functionning fine.


Attached are some results comparing TMS motion damping on vs damping off in each DOF with the ISI floating (no active control). The first picture shows the time series and the second one the spectra.

Qs are reduced by a factor of (roughly the order of) 100 for the first modes of each dof. The last picture shows the filters engaged and the gains (for future reference)

Images attached to this report