NAOJ GW Elog Logbook 3.2
Displaying report 1-1 of 1.
NaokiAritomi - 23:04, Tuesday 04 August 2020 (2144)
spectrum of WFS signals
[Aritomi, Yuhang, Eleonora]
First we changed the demodulation phase for WFS1 from 17.5 deg to 107.5 deg in order to have all signals in I phase.
Then we measured spectrum of WFS signals (attached picture). As you can see, 11Hz BS pitch peak appears in WFS1_I_YAW which means there is large pitch and yaw coupling in WFS1. Eleonora will make rotation matrix to rotate WFS1 I pitch and yaw.
First we changed the demodulation phase for WFS1 from 17.5 deg to 107.5 deg in order to have all signals in I phase.First we changed the demodulation phase for WFS1 from 17.5 deg to 107.5 deg in order to have all signals in I phase.
Images attached to this report
