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The complete set of magnetometer consists
of three LEMI-30 sensors and one communication unit (CAM unit), which
connects the sensors to PC and provides their power supply, satellite
synchronization of data sampling and digitizing.
The induction magnetometer LEMI-30 is intended for the study of magnetic
field fluctuations in the frequency band 0.001 ... 30 Hz in land
conditions and is ideal for ULF earthquake precursors monitoring. A
novel method of strong damping of mains frequency is implemented there
(see Frequency Response), what makes it convenient for using close to
populated area. All three LEMI 30 sensors are similar within 0,1 dB.
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