How have pulsed MHD generators been used in geophysical research?

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magnetohydrodynamic power generator Comparison of the operating principles of (A) a turbogenerator and (B) an MHD generator.

Pulsed magnetohydrodynamic (MHD) generators are utilized in geophysical research as power sources for electromagnetic sounding apparatuses. These systems are specifically designed to meet the requirement for delivering large pulses of electrical power to remote locations.

A typical pulsed MHD generator system consists of a rocket motor, a duct, a magnet, and the necessary connections to an electrical load. These generators are capable of achieving power levels of up to 100 megawatts for durations of a few seconds, providing the high-energy output necessary for specialized geophysical sensing applications.1