| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration apparatus allowing vibrating objects like a machine mounted on the vibrator to linearly vibrate by making the vibrator itself vibrate linearly. SOLUTION: A circulation pump 2 is provided in a circulation pipe 1 having magnetic fluid with compressive gaseous solute dissolved therein filled and sealed, and the circulation pipe 1 is formed with a straight pipe 10 with the downstream end connected to a suction port 21 of the pump 2, and multiple heat radiation pipes 11 connected between a discharge port 20 of the pump 2 and the upstream end of the straight pipe 10. A pair of electromagnets 3 are disposed with different magnet poles facing each other across the straight pipe, the electromagnets 3 are turned ON/OFF to switch a density of magnetic body of the magnetic fluid repeatedly between a dense state and lean state with the magnetic fluid circulated through the circulation pipe by the circulation pump, to suppress/release the flow of the magnetic fluid in the straight pipe to generate vibration. COPYRIGHT: (C)2007,JPO&INPIT
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