| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus for preventing bird damage, which is excellent in durability and safety by changing a magnetic field without providing a mobile part. <P>SOLUTION: The apparatus comprises an induction generating part 10 for generating induction current and induction voltage of alternating-current flowing through a power line and a distribution line and a magnetic force-generating part 20 for generating the magnetic field by induction current fed from the induction generating part 10. The magnetic force-generating part 20 is constituted of a plurality of electromagnets 21 and a part or all of each electromagnet can each be set in different directions. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
