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- Can it detect tunnels and caves, and if so how deep?
Can it detect tunnels and caves, and if so how deep?
Yes, it has been used successfully to detect and map shallow tunnels, caves, voids, and cavities. With a sample density of approximately 1.25 meters it is unlikely to accurately position targets smaller than 1 meter in lateral dimension. Towing the OhmMapper at speeds of around 1 km/hr will increase sample density and increase the likelihood of detecting shallow targets 50cm in dimension. Detecting voids and cavities deeper than three meters requires them to be larger than one meter.