LIGO Document T1200479-v2

(UK) Electrostatic Driver (HV ESD) Range and Noise

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T - Technical notes
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This note examines how much range will be needed from the electro-static drivers in low-noise operation, and the level of displacement noise that the UK ES-drivers would produce.
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ESD suspension noise
Notes and Changes:
v2: Corrected the force coefficient for the ERM (4e-10 vs 2.9e-10), and as a result reduced the bias voltage for noise calculations (kept ESD force noise the same). Fixed error in driver voltage range. Added reference to Weiss' testing of the ESDs.

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