Prance
Robert Prance, Brighton GB
Patent application number | Description | Published |
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20090096447 | ELECTRIC POTENTIAL SENSOR FOR USE IN THE DETECTION OF NUCLEAR MAGNETIC RESONANCE SIGNALS - The present invention provides nuclear magnetic resonance apparatus comprising means for applying a static magnetic field (H | 04-16-2009 |
20090167324 | ELECTRIC POTENTIAL SENSOR - The invention provides an electric potential sensor, comprising at least one detection electrode arranged for capacitive coupling with a sample under test and for generating a measurement signal, and a sensor amplifier adapted to receive the measurement signal as input and to supply an amplified detection signal as output. Input impedance enhancing means provide a high input impedance to the sensor amplifier for increasing the sensitivity of the electrode to reduced electric potentials, and feedback means apply a coherent feedback signal to the input of the sensor amplifier for enhancing the signal to noise ratio of the sensor. | 07-02-2009 |
20090309605 | ELECTRIC POTENTIAL SENSOR - The present invention provides an electric potential sensor for the measurement of potentials non-invasively. The sensor comprises at least one detection electrode arranged for capacitive coupling with a sample under test and for generating a measurement signal, and a sensor amplifier adapted to receive the measurement signal as input and to supply an amplified detection signal as output. Input impedance enhancing means are included for providing a high input impedance to the sensor amplifier for increasing the sensitivity of the electrode to reduced electric potentials, and a discrete pre-amplifier stage is arranged to co-operate with the sensor amplifier to reduce the input capacitance of the amplifier. | 12-17-2009 |
20100289479 | SENSOR SYSTEM AND METHOD - The present invention provides a sensor system and a corresponding sensing method employing the sensor system. The sensor system comprises a sensor ( | 11-18-2010 |
Robert J. Prance, Brighton GB
Patent application number | Description | Published |
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20110245702 | ELECTRODYNAMIC SENSORS AND APPLICATIONS THEREOF - An electrodynamic sensor comprises a high input impedance electrometer adapted to measure small electrical potentials originating from an object under test and having a pair of input probes, characterised in that at least one of said pair of input probes has no direct electrical contact with said object, wherein the circuit arrangement of said electrometer comprises an electrode ( | 10-06-2011 |
20140292306 | TARGET POSITION, MOVEMENT AND TRACKING SYSTEM - The invention provides a target object detection system, comprising a plurality of sensing nodes ( | 10-02-2014 |
Robert John Prance, Brighton GB
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20120323513 | APPARATUS AND METHOD FOR MEASURING CHARGE DENSITY DISTRIBUTION - The invention provides a method and apparatus for the detection of charge density distribution at the surface of a material sample. The apparatus comprises an electric potential sensor for measuring surface charge on a material sample, wherein the electrical potential sensor includes a probe for capacitively coupling the electric potential sensor to the surface of the material sample, an amplifier for generating a measurement output, the probe being connected to an input of the amplifier and the measurement output being supplied at an output of the amplifier, and a feedback arrangement driven from the output of the amplifier for enhancing the input impedance of the amplifier. A positioning system mounts the probe of the electric potential sensor above the material sample and moves the probe at a constant height over a surface of the said sample, and a processing system receives and processes the measurement output of the electric potential sensor for generating a digital record of the charge density distribution at the surface of the material sample. | 12-20-2012 |