Reports until 14:50, Friday 19 April 2024
H1 SQZ (DetChar)
naoki.aritomi@LIGO.ORG - posted 14:50, Friday 19 April 2024 (77292)
ADF line at 322Hz

Naoki, Camilla, Sheila

We did 5+5 minutes ON/OFF test of ADF line at 322 Hz. While the ADF is ON, we changed the ADF demod phase to make the ADF SQZ angle around 0 so that we can use the ADF servo with 322 Hz ADF line. 

The script to change the ADF frequency is in (userapps)/sqz/h1/scripts/ADF/setADF.py. The command is as follows.

python setADF.py -f 322

1st cycle
ON (5 min)
UTC: 2024/04/19 19:02:10 UTC
GPS: 1397588548

OFF (5 min)
UTC: 2024/04/19 19:07:21 UTC
GPS: 1397588859

2nd cycle
ON (5 min)
UTC: 2024/04/19 20:02:52 UTC
GPS: 1397592190

OFF (5 min)
UTC: 2024/04/19 20:08:00 UTC
GPS: 1397592498

3rd cycle
ON (5 min)
UTC: 2024/04/19 20:13:16 UTC
GPS: 1397592814

OFF (5 min)
UTC: 2024/04/19 20:18:35 UTC
GPS: 1397593133

Images attached to this report