peter.king@LIGO.ORG - posted 07:57, Wednesday 02 November 2016 - last comment - 08:33, Wednesday 02 November 2016(31120)
pre-modecleaner servo transfer functions
Measured transfer functions after yesterday's circuit board modifications. The MEDM gain slider was increased from 0 in increments of 3.
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I noticed this before, where the gain slider is miscalibrated by a factor of 2. 0dB to 40dB is mapped into +/-10V, but it looks like you only need +/-5V for the full range.