haocun.yu@LIGO.ORG - posted 16:29, Monday 20 June 2016 (27853)
Low pass filters added to HARD loops
Jenne, Rana, Haocun We added filters to C/DHARD Pitch and Yaw loops to reduce low frequency noises. These are low pass filters at 35Hz, as shown in the figure attached. We used same filters for CHARD and DHARD, and the noises from 30-100Hz were reduced by a factor of 10.
Images attached to this report
