The Rover UC
What It Is and How It Works
The Rover UC looks like a walking stick. It collapses to about 18” when not in use. Its length can be adjusted for the user’s preference, however the best operation results from extending it to its maximum length. The hiking stick is essentially a sensor of material wound in a spiral around the stick and the necessary electronics to digitize the sensed electric and magnetic fields of the earth’s natural radiation. The sensed data is transmitted by a Bluetooth© interface that allows the stick to link to the operator's Android cell phone. We use Samsung devices of all types. OKM Industries provides the application for downloading to Android devices.
Each downloaded application must be told the serial number of the Rover UC the first time it is used, otherwise the security software prevents its normal operation. Once the security measures are managed, the Android and the walking stick can communicate via Bluetooth©. The Android device will display the various possible tools used in combination with the walking stick and provide the user the operational command, control and display associated with the tool selected.
The tools are a 3D or 2D electromagnetic sensor display of the dominant features underneath the operator and a 2D magnetometer that only senses ferrous objects. The 3D and 2D electromagnetic sensor displays provide information about what is sensed and its approximate depth using color codes and height or depth of the line or surface being displayed.
When operating normally the walking stick and Android device can detect features and corroded metals underground. The display discriminates between ferrous (magnetic) and non-ferrous (non-magnetic) metals. It also detects voids such as tunnels, mines, caves or holes. It will sense and display the most dominant feature underneath you at any given spot you walk over. The presentation of the information about that dominant feature depends on the tool selected, however in every case it is based on the natural electric and magnetic radiation of the earth. The colors of the features and their 3D appearance are always the same.
Depth and height are dependent on location and signal strength. Red and orange colors are indicative of non-ferrous metals. Red orange shapes are indicative of ferrous metals. Green colors indicate natural terrain. Blue only areas represent voids of very light materials such as in filled holes. The blue fields also indicate caves, tunnels or geological faults.
To analyze the data captured by the Android device the operator must transfer the files to a laptop where it is viewed using another application. The application is Visualizer 3D. This application can be located at www.Visualizer3D.com. This application takes vector data in the received file and displays the data several possible ways.
When we used the Rover UC we developed a technique that was productive for us. First we walk the area with the magnetometer to determine if there is debris or ferrous material in the general area of interest. We remove the ferrous clutter and inspect it. Next we walk over the area of interest again but this time the tool selected is the 2D electromagnetic scan. We traverse the area as if using a standard metal detector. We identify the most interesting feature's location. Then we establish a scan zone that (if possible) entirely surrounds the interesting feature on all four sides with at least a one yard wide perimeter. Having identified the scan zone we assemble a grid device of our own design. This grid device enables us to scan very accurately and to know the exact position of interesting features under the surface that we scanned.
The Rover UC is called a Ground Phase Recorder. An operator's manual and technical descriptions can be found at the following website.
We purchased our Rover UC from this website. You can also review the manufacturer's website at:
By Robert L. Kesselring and Lynda R. Kesselring
Index to Articles
- History of the Mines and the Treasure
- Peralta Stone Map and Cross
- Research and Planning
- Ground Trips
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