Three-dimensional resistivity probe for in-situ monitoring

A three-dimensional resistivity probe for in-situ monitoring comprises:

• a probe rod body inside which one or more subordinate controllers are provided;
• a control cabin inside which a main controller is provided disposed at the top of the probe rod body;
• and
• a cone tip provided at the bottom of the probe rod body;
• wherein the probe rod body comprising:
• a plurality of resistivity sensor modules, wherein each resistivity sensor module including a plurality of insulating rings, each insulating ring having a protruded part at a top end and a groove fitting into at a bottom end, three or more point-electrode grooves are formed at the top end of each insulating ring and two through holes allowing two positioning rods to insert into for assembly are opened thereon and the outer end of each point-electrode groove extends to an outer circumference of each insulating ring;
• a plurality of point electrodes, each of the point electrodes being positioned in a point-electrode groove, respectively;
• a cone-tip connector, wherein two limiting rods configured to assemble the resistivity sensor modules are provided on the top, around which the multiple resistivity sensor modules are disposed;
• and
• a cabin connector provided with a terminal electronically connected to the main controller;
• wherein the resistivity probe is assembled by sequentially putting the resistivity sensor modules around the two limiting rods one by one and connecting an upper end of a top resistivity sensor module to the main control cabin through the cabin connecter and connecting a lower end of a bottom resistivity sensor module to the cone-tip through the cone-tip connecter,
• and wherein the three-dimensional resistivity probe provides three-dimensional measurements in different forms based upon which point electrodes of the plurality of point electrodes in the probe rod body are used to generate the three-dimensional measurements.