Imaging system

An imaging system includes a plurality of conductive electrodes 21, each supported on a conductive substrate 20. A signal generator 22 and signal detector are each connected to at least two electrodes 21. An impedance compensator 23 applies a corrective impedance, such as a negative capacitance or r...

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Bibliographic Details
Main Authors Michael William Hopkins, Rajinder Singh, Lyn David Jones
Format Patent
LanguageEnglish
Published 30.06.2021
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:An imaging system includes a plurality of conductive electrodes 21, each supported on a conductive substrate 20. A signal generator 22 and signal detector are each connected to at least two electrodes 21. An impedance compensator 23 applies a corrective impedance, such as a negative capacitance or resistance, to counter parasitic impedance C between each electrode 21 and its substrate 20. The system may be for capacitive-resistive imaging (CRI) of an underground downhole environment or geological formation (61, fig 6). The substrates 20 may be metal well pipes (62, 62', fig 6). The signal generator 22 may work at DC or near DC frequencies.
Bibliography:Application Number: GB20190018713