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

Document #:

LIGO-T1200479-v2

Document type:

T - Technical notes

Abstract:

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.

Files in Document:

• ESDnoise.pdf (1.2 MB)

Other Files:

• ESDnoise.docx (781.8 kB)

Topics:

• System Engineering
• Modelling
• Suspensions
• Sensing and Control

Authors:

• Peter Fritschel

Keywords:

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.

Referenced by:

• LIGO-G1400537-v1: ESD Force Noise and Range for Various Modes of Operation