electromagnetic geophysical methods

{
  "id": "MLC-T-ENV-009154",
  "term": "electromagnetic geophysical methods",
  "field": "Environment",
  "definition": "1. Methods of measuring subsurface conductivities by low frequency electromagnetic induction. A transmitter coil radiates an electromagnetic field which induces eddy currents in the subsurface. The eddy currents, in turn, induce a secondary electromagnetic field. The secondary field is then intercepted by a receiver coil. The voltage measured in the receiver coil is related to the subsurface conductivity.\n\n2. Ways to measure subsurface conductivity via low-frequency electromagnetic induction.",
  "subject": "General environmental",
  "references": [
    "Underground Storage Tank Sites Guide Glossary",
    "Terms of Environment"
  ],
  "url": "https://mlchart.com/terminology/environment/electromagnetic-geophysical-methods/"
}