| 摘要 |
PROBLEM TO BE SOLVED: To provide a precise routine operated seismic source utilizing electromagnetic coil, which is quite a new type precise-controlled routine operated seismic source capable of generating large-scale artificial shaking by utilizing a superconducting coil or the like where a large current is caused to flow by making electric resistance zero to thereby generate a high magnetic field and using the electromagnetic force of repulsive force or attraction force of the high magnetic field, and which is compact, require extremely small consumption energy, and has a semipermanent lifetime as compared with the conventional precise-controlled routine operated seismic source. SOLUTION: In this routine operated seismic source, a permanent magnet or a direct current superconducting electromagnetic coil and an alternating current superconducting electromagnetic coil are disposed adjacent to each other, and also one of the permanent magnet or the direct current superconducting electromagnetic coil and the alternating current superconducting electromagnetic coil is fixed in an optional position, thereby utilizing the shaking force generated due to the electromagnetic force of the permanent magnet or the direct current superconducting electromagnetic coil and the alternating current superconducting electromagnetic coil. COPYRIGHT: (C)2008,JPO&INPIT
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