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However, the PRMI would not acquire lock with the arms held off resonance.
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This is entirely my fault.
Last week, while doing some stuff with PRY, I put this filter in SUS_PRM_LSC, to stop some saturations from high frequency sensing noise
After the discussion at today's meeting, it struck me that I might have left it on. Turns out I did.
20 degree phase lag at 200Hz can explain the instability, some non-flat shape at few hundreds of Hz explains the non 1/f shape.
Sorry about all that... |