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Signal specific electric potential sensors for operation in noisy environments

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posted on 2023-06-08, 06:08 authored by S T Beardsmore-Rust, Robert Prance, Ahmet Aydin, H Prance, C J Harland, P B Stiffell
Limitations on the performance of electric potential sensors are due to saturation caused by environmental electromagnetic noise. The work described involves tailoring the response of the sensors to reject the main components of the noise, thereby enhancing both the effective dynamic range and signal to noise. We show that by using real-time analogue signal processing it is possible to detect a human heartbeat at a distance of 40 cm from the front of a subject in an unshielded laboratory. This result has significant implications both for security sensing and biometric measurements in addition to the more obvious safety related applications.

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of Physics: Conference Series

ISSN

1742-6588

Issue

1

Volume

178

Pages

1.0

Department affiliated with

  • Engineering and Design Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

First Open Access (FOA) Date

2015-06-24

First Compliant Deposit (FCD) Date

2015-06-24

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