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AR4 Robot-Powered Geoelectric Sensor Mount

Expert/ProfessionalMining / Research & Development

The AR4 positions a geoelectric sensor to map minerals inside mine walls

Built by Robo MinersLeoben, Austria

6

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AR4 Robot-Powered Geoelectric Sensor Mount

About my build

This build was part of the European ROBOMINERS project. The challenge was to achieve high-resolution subsurface mapping to guide autonomous drilling robots. The AR4 was used to precisely position and hold an electrical resistivity tomography sensor against a mine wall. This allowed the team to measure electrical resistivity changes at close range, providing detailed data on the boundaries and composition of mineral deposits hidden behind the rock surface.

Learn More: https://robominers.eu/2023/10/25/european-union-funded-mining-robot-achieves-remarkable-success-in-slovenia-field-trials/

Workflow / process

  1. The AR4 arm moves the sensor probe into a pre-defined position against the mine wall.
  2. The sensor makes contact and takes a resistivity measurement.
  3. The arm repositions the sensor to the next point on a grid.
  4. This process repeats, building a detailed 2D or 3D map of the subsurface.

Primary use cases

  • Guiding autonomous drilling robot navigation
  • High-resolution subsurface mineral mapping
  • Non-destructive geological surveying

Custom modifications

  • (Inferred) Control software for automated grid-scanning
  • Custom end-effector for geoelectric sensor mounting

Hardware add-ons

  • Electrical Resistivity Tomography sensor and electrodes

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