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Proceedings Paper

Security applications of a remote electric-field sensor technology
Author(s): Robert J. Prance; Christopher J. Harland; Helen Prance
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Paper Abstract

A new generation of electric field sensors developed at the University of Sussex is enabling an alternative to contact voltage and non-contact magnetic field measurements. We have demonstrated the capability of this technology in a number of areas including ECG through clothing, remote off-body ECG, through wall movement sensing and electric field imaging. Clearly, there are many applications for a generic sensor technology with this capability, including long term vital sign monitoring. The non-invasive nature of the measurement also makes these sensors ideal for man/machine and human/robot interfacing. In addition, there are obvious security and biometric possibilities since we can obtain physiological data remotely, without the knowledge of the subject. This is a clear advantage if such systems are to be used for evaluating the psychological state of a subject. In this paper we report the results obtained with a new version of the sensor which is capable of acquiring electrophysiological signals remotely in an open unshielded laboratory. We believe that this technology opens up a new area of remote biometrics which could have considerable implications for security applications. We have also demonstrated the ability of EPS to function in closely-packed one and two dimensional arrays for real-time imaging.

Paper Details

Date Published: 16 October 2008
PDF: 5 pages
Proc. SPIE 7112, Unmanned/Unattended Sensors and Sensor Networks V, 71120I (16 October 2008); doi: 10.1117/12.799747
Show Author Affiliations
Robert J. Prance, Univ. of Sussex (United Kingdom)
Christopher J. Harland, Univ. of Sussex (United Kingdom)
Helen Prance, Univ. of Sussex (United Kingdom)


Published in SPIE Proceedings Vol. 7112:
Unmanned/Unattended Sensors and Sensor Networks V
Edward M. Carapezza, Editor(s)

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