While looking at the decay of the violin mode of the PRM, I made a simple measurement of the decay rate.
Error signal: REFL33I
The peak @628Hz became 0.372 to 0.303 in 60 sec.
-> Half life of the amplitude T_{1/2} is 203sec.
Q = 4.53 f0 T_{1/2} = 5.8 x10^5 |