A robust floating nanoammeter
B. E. Sauer, D. M. Kara, J. J. Hudson, M. R. Tarbutt, E. A. Hinds
TL;DR
This paper presents a robust circuit design for measuring nanoampere currents at high voltages up to 25kV, using optical fiber for safe ground connection and emphasizing durability against voltage spikes.
Contribution
The paper introduces a novel high-voltage floating nanoammeter with enhanced robustness and safety features, including optical fiber transmission and specialized construction techniques.
Findings
Successfully measures nanoampere currents at 25kV
Operates reliably amidst high voltage spikes and discharges
Uses optical fiber for safe ground potential relay
Abstract
A circuit capable of measuring nanoampere currents while floating at voltages up to at least 25kV is described. The circuit relays its output to ground potential via an optical fiber. We particularly emphasize the design and construction techniques which allow robust operation in the presence of high voltage spikes and discharges.
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