Electromagnetic Instrumentation – New Developments For Geophysics

Electromagnetic sounding of Earth interior is widely used both for scientific study and geophysical<br>prospecting of different kinds of deposits. The progress in electronics and technology allows to develop<br>corresponding geophysical instrumentation with high level of metrological and exploitational parameters.<br>Main types of recent generation of devices used for electromagnetic survey are described in the paper: fluxgate<br>and search-coil magnetometers and magnetotelluric stations.