Selecting an Optimal Faraday Cage To Minimize Noise in Electrochemical Experiments

The ubiquitous Faraday cage, an experimental component particularly essential for nanoelectrochemical measurements, is responsible for neutralizing noise introduced by electromagnetic interference (EMI). Faraday cage designs abound in the literature, often exhibiting varying thicknesses, mesh sizes,...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2022-09, Vol.94 (35), p.11983-11989
Main Authors: Glasscott, Matthew W., Brown, Eric W., Dorsey, Keirstin, Laber, Charles H., Conley, Keith, Ray, Jason D., Moores, Lee C., Netchaev, Anton
Format: Article
Language:English
Subjects:
Analytical chemistry
Cages
Chemistry
Electrochemistry
Electromagnetic interference
Faraday cage
Faraday effect
Fourier transforms
Noise
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Summary:The ubiquitous Faraday cage, an experimental component particularly essential for nanoelectrochemical measurements, is responsible for neutralizing noise introduced by electromagnetic interference (EMI). Faraday cage designs abound in the literature, often exhibiting varying thicknesses, mesh sizes, and base materials. The fact that the Faraday cage composition most often goes unreported underscores the fact that many electrochemical researchers assume a 100% EMI reduction for any given design. In this work, this assumption is challenged from a theoretical and empirical perspective by highlighting the physical principles producing the Faraday effect. A brief history of the Faraday cage and a simplified theoretical approach introduce fundamental considerations regarding optimal design properties. In practice, time-domain noise profiles and corresponding Fourier transform frequency domain information for custom-built Faraday cages reveal that maximally conductive cages provide more optimal EMI exclusion.
ISSN:0003-2700
1520-6882
DOI:10.1021/acs.analchem.2c02347