LIGO Document T1400284-v2

Glitches in the Blend Switch - Origin and Fix

Document #:
LIGO-T1400284-v2
Document type:
T - Technical notes
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Abstract:
We show that the glitches in the Blend Switching result from a the combination of large T240 signals getting switched in with a sharp cornered blend ramp and amplified by Level 3 controllers with high gain at high frequency. A smoother ramp has been implemented to fix the issue
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