Electric potential sensor (improvement 1)

University of Sussex; Prance, Robert; Harland, Christopher (2006) Electric potential sensor (improvement 1). PCT/GB2007/002645.

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The invention provides an electric potential sensor, comprising at least one detection electrode (12) arranged for capacitive coupling with a sample under test and for generating a measurement signal, and a sensor amplifier (14) adapted to receive the measurement signal as input and to supply an amplified detection signal as output. Input impedance enhancing (34) means provide a high input impedance to the sensor amplifier for increasing the sensitivity of the electrode to reduced electric potentials, and feedback means (46, 52, 54, 56; 56, 61) apply a coherent feedback signal to the input of the sensor amplifier for enhancing the signal to noise ratio of the sensor.

Item Type: Patent
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Robert Prance
Date Deposited: 06 Feb 2012 19:56
Last Modified: 24 Jun 2015 12:39
URI: http://sro.sussex.ac.uk/id/eprint/23075
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