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Reports until 15:17, Friday 09 February 2024
H1 AOS (SEI)
michael.ross@LIGO.ORG - posted 15:17, Friday 09 February 2024 - last comment - 09:15, Tuesday 12 March 2024(75802)
First BRS Remote Mass Adjusting

We successfully balanced the BRS with the remote mass adjuster for the first time this morning. The process was relatively painless. We used a windows machine to drive the picomotor and a separate laptop to monitor the BRS readouts. The BRS is still equilibrating and will drift more into range over the next few days.


Total movement today: -60k steps
Coupling/decoupling move: 1.25k steps
Maximum: +- 140k steps
Be careful: +-100k steps

Log:
-2.5k steps
-2.5k steps
+1.25k steps
-1.25k steps
-2.5k steps
+1.25k steps
-1.25k steps
-10k steps
+1.25k steps
-1.25k steps
-10k steps
+1.25k steps
-1.25k steps
-5k steps
+1.25k steps
-1.25k steps
-2.5k steps
+1.25k steps
-1.25k steps
-2.5k steps
+1.25k steps
-1.25k steps
-5k steps
+1.25k steps
-1.25k steps
-10k steps
+1.25k steps
-1.25k steps
-2k steps
+1.25k steps
-1.25k steps
-1.25k steps
+1.25k steps
-1.25k steps
-2.5k steps
+1.25k steps
-1.25k steps
-2.5k steps
+1.25k steps

 

 

 

Comments related to this report
anthony.sanchez@LIGO.ORG - 09:15, Tuesday 12 March 2024 (76284)

Finally adding the pictures to this alog.
And a link to the Google doc for making the BRS changes.
https://docs.google.com/document/d/1XBH-TVwQ3JC8rjLGXUg-LDZKzHxaTuKBC3_-B_fWWAk/edit#heading=h.7b9gxgqfvsr0

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