Indirect Measurement of Shielding Effectiveness of an Enclosure for a Security Camera
Author:
Skočík Petr1, Pospíšilík Martin1, Křesálek Vojtěch1, Adámek Milan2
Affiliation:
1. Department of Electronics and Measurement, Faculty of Applied Informatics , Tomas Bata University in Zlín , Nad Stráněmi 4511, 760 05 Zlín, Czech Republic 2. Department of Security Engineering, Faculty of Applied Informatics , Tomas Bata University in Zlín , Nad Stráněmi 4511, 760 05 Zlín, Czech Republic
Abstract
Abstract
This paper presents the results of our experiment, which consisted in measurement of the shielding effectiveness of a camera enclosure that was designed and constructed in order to increase the susceptibility of a camera against external electromagnetic fields. All activities, from defining of requirements to final design and measurements, were performed in the Laboratory of Electromagnetic Compatibility at the Faculty of Applied Informatics of Tomas Bata University in Zlín. The hereby described approach allowed to utilize standardized laboratory equipment that is normally used for device susceptibility test to radiated electric field. The measurement was made inside a semi-anechoic room additionally damped by absorbers placed on its floor. When configuring the experiment, relevant EMC standards EN 55016 and EN 61000-4-3 were considered. Although the uncertainty tolerances, allowed by the relevant standards, were quite high for measurements in such rooms, the results obtained by the experiment matched the theoretical expectations quite satisfactorily.
Publisher
Walter de Gruyter GmbH
Subject
Instrumentation,Biomedical Engineering,Control and Systems Engineering
Reference26 articles.
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