Reports until 15:30, Wednesday 26 November 2014
H1 ISC
eleanor.king@LIGO.ORG - posted 15:30, Wednesday 26 November 2014 (15313)
Green WFS autocentering ugf

Dave Ottaway, Elli

 

 For the X-end green WFS, we adjusted the WFS autocentering gain to match the Y-end WFS.  The updated values are:

H1ALS-X_A_AUTOC_PIT_CTRL_GAIN: 200,000

H1ALS-X_A_AUTOC_YAW_CTRL_GAIN: -150,000

H1ALS-X_B_AUTOC_PIT_CTRL_GAIN: 70,000

H1ALS-X_B_AUTOC_YAW_CTRL_GAIN: 70,000

 

The unity gain frequency at the for the X-end WFS is:

WFS A PITCH: 15 Hz

WFS A YAW: 15 Hz

WFS B PITCH: 6 Hz

WFS B YAW: 7 Hz

 

And the unity gain frequency at the Y-end:

WFS A PITCH: 10 Hz

WFS A YAW: 10 Hz

WFS B PITCH: 7.5 Hz

WFS B YAW: 7 Hz