NAOJ GW Elog Logbook 3.2
Displaying report 1-1 of 1.
NaokiAritomi - 20:27, Monday 03 August 2020 (2141)
WFS sensing matrix
[Aritomi, Yuhang]
First we found that optimal demodulation phase for WFS1 has changed. It was 20 deg, but today it is 17.5 deg after we optimized it.
We measured sensing matrix by injecting a line to INPUT PIT/YAW and END PIT/YAW (attached pictures). The line frequency is 12Hz and the amplitude is 2000.
In the attached pictures, the left peak is BS pitch 11Hz peak and the right peak is the 12Hz injected line.
We have to think about how to decouple pitch and yaw in driving/sensing.
| INPUT PIT | INPUT YAW | END PIT | END YAW | |
| WFS1_Q_PIT | 0.58 | 0.02 | 0.26 | 0.14 |
| WFS1_Q_YAW | 0.13 |
0.52
0.52
|
0.16 | 0.14 |
| WFS2_I_PIT | 0.15 | 0.01 | 0.48 | 0.09 |
| WFS2_I_YAW | 0.01 | 0.12 | 0.03 | 0.40 |
Images attached to this report
