stefan.ballmer@LIGO.ORG - posted 04:28, Thursday 06 February 2014 - last comment - 04:30, Thursday 06 February 2014(9878)
BS opleve was oscillating
Stefan and I found that the BS oplev was oscillating because of probably a loop instability. Disabling and enabling them at H1:SUS-BS_M2_OLDAMP_P(Y) made it stable again. It had been oscillating for more than 15 hours.
The attached is the trend.
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posted by Kiwamu, not Stefan, sorry.