Electric potential sensor
作者： Christopher Harland , Robert Prance
DOI:
关键词: Electrical engineering 、 Operational amplifier 、 Input offset voltage 、 Amplifier 、 Direct-coupled amplifier 、 Input impedance 、 Instrumentation amplifier 、 Capacitive coupling 、 Materials science 、 Signal
摘要: The present invention provides an electric potential sensor (28) for the measurement of potentials non-invasively. comprises at least one detection electrode (12) arranged capacitive coupling with a sample under test and generating signal, amplifier (14) adapted to receive signal as input supply amplified output. Input impedance enhancing means (12a, 32, 36, 38, 44) are included providing high increasing sensitivity reduced potentials, discrete pre-amplifier stage (30) is co-operate reduce capacitance amplifier.
sussex.ac.uk
lens.org 参考文章(24)
Robert E Vosteen, Feedback electrostatic voltmeter ,(1973)
Michael A. Krupka, Andrew D. Hibbs, Robert Matthews, Sensor system for measuring biopotentials ,(2003)
Igor Fridman, Paul Hervieux, Linas Kunstmanas, Robert Matthews, Sensor system for measuring an electric potential signal of an object ,(2005)
W. Gebrial, C. Antrobus, R.J. Prancel, Non destructive testing of materials using a nover electric potential sensor sensors applications symposium. pp. 115- 118 ,(2006) , 10.1109/SAS.2006.1634250
Louis W Schlenz, Donald B Everett, Noise compensation techniques for bioelectric potential sensing ,(1973)
Christopher J. Harland, Robert J. Prance, Terence D. Clark, Electrodynamic sensors and applications thereof ,(2002)
R J Prance, A Debray, T D Clark, H Prance, M Nock, C J Harland, A J Clippingdale, An ultra-low-noise electrical-potential probe for human-body scanning Measurement Science and Technology. ,vol. 11, pp. 291- 297 ,(2000) , 10.1088/0957-0233/11/3/318