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Magnetic Methods
Magnetometers measure the intensity of the earth's magnetic field regardless of direction (total field magnetometers), or the intensity in a certain direction (fluxgate magnetometers). Due to superior data collection speed and sensitivity, total field magnetometers are more commonly used for environmental applications. Only ferrous objects will cause fluctuations in the earth magnetic field and can therefore be detected with magnetometers. Using two sensors, the sensor readings and the magnetic gradient can be recorded at the measurement location for increased sensitivity and data quality. The data is stored and displayed on a digital data logger, and can be downloaded to a laptop for thorough data analysis and interpretation.
Applications:
- Unexploded Ordnance (UXO) mapping
Locating Underground Storage Tanks (UST) and Buried Drums
- Locating Buried Debris and Landfills
- Archaeology
- Mineral Exploration
- Groundwater Exploration
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