| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic wave measurement system capable of performing wide and deep detection and improving the efficiency of measurement work, by performing detection over a wide range of depth, using a plurality of frequencies and simultaneously recording the antennadirection and then angle of depression, positional information, and so forth of a measuring point. SOLUTION: The electromagnetic wave measurement system includes an electromagnetic wave measurement device A for acquiring secondary magnetic field information from the underground, and a data processor B receiving and storing transmission data from the electromagnetic wave measurement device. Underground electromagnetic induction effect is utilized, caused by the primary magnetic fields of a plurality of different frequencies from outside the area to be investigated. By making the electromagnetic wave measurement device move within the area to be investigated, secondary magnetic field information in the area to be investigated is acquired for each of the different frequencies, and positional information on the measurement point is acquired a by a GPS navigation system, provided to the electromagnetic wave measurement device; and the secondary magnetic field information and the positional information on the measurement point acquired are transmitted from the electromagnetic wave measurement device and are received by the data processor. COPYRIGHT: (C)2008,JPO&INPIT
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