corey.gray@LIGO.ORG - posted 04:39, Monday 03 June 2019 - last comment - 12:27, Thursday 20 June 2019(49610)
H1 BSC/HAM ISI CPS Sensor Noise Spectra Check (FAMIS task, #12850)
Following CPS are over threshold:
- BS_ST2_CPSINF_V1_I high freq noise is high!
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FRS 13075
During Tuesday Maintenance, the BS was taken to DAMPED and the CPS Interface chassis was power cycled in the CER. This power cycled the satellite racks as well. I did not un- & re-seat the gauge board cards in the satellite rack which is one thing we do to mitigate the elevated noise on a CPS.
Attached is a comparison of the BS Stage2 CPS between the spectrum Corey alogged here from June 3 and one taken this morning at 2am. This noise wasn't really too elevated but it sure looks much quieter now or this morning at least. Will update/close the FRS.
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