| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic equipment system with a magnetic field change suppressing function that can securely suppress change in a magnetic field acting on an object to be protected with a simple configuration. Ž<P>SOLUTION: A sample analysis system 100 includes an analyzing device 1 as an object to be protected which is installed at a position where the analyzing device 1 is influenced by a magnetic field that a superconducting magnet 2 produces, in relation to the superconducting magnet 2, and a magnetic field change suppressing device 3 which suppresses change in the magnetic field acting on the analyzing device 1. The magnetic field change suppressing device 3 includes correcting coils 4a and 4b which are arranged near the analyzing device 1 so as to surround magnetic flux of a leakage magnetic field 21 from the superconducting magnet 2 passing through the analyzing device 1, and which generate induced currents caused by the change in the leakage magnetic field 21, the induced current causing correcting magnetic fields 41a and 41b in directions wherein change in the leakage magnetic field 21 is canceled to act on the analyzing device 1. Then the correcting coils 4a and 4b are superconducting coils having superconducting wires wound so as to surround the magnetic flux of the leakage magnetic field 21. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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