Method and apparatus for improved current focusing in...

Details Method and apparatus for improved current focusing in... Method and apparatus for improved current focusing in...

G - Physics

01

V

G01V 3/20 (2006.01)

Patent

CA 2604834

A galvanic resistivity tool with one or more measurement electrodes and guard electrodes, and one or more shielding electrodes. The potential difference between the measurement electrodes and the guard electrodes is controlled to minimize current flow between the measurement electrodes and the shielding electrodes. This provides improved focusing and avoids effects of contact impedance.

L'invention concerne un outil à résistance galvanique qui comprend une ou plusieurs électrodes de mesure et électrodes de garde, et une ou plusieurs électrodes de blindage. La différence de potentiel entre les électrodes de mesure et les électrodes de garde est régulée de manière à minimiser le flux de courant entre les électrodes de mesure et les électrodes de blindage, ce qui permet d'améliorer la concentration et d'éviter les effets de l'impédance de contact.

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