| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic acceleration sensor and a magnetic characteristic measurement device which measure the magnetic characteristic of a magnetic field space, quantitatively measure and display a magnetic force, magnetic flux density, and magnetic gradient, and, when these values exceed a prescribed value, issues a warning.SOLUTION: An acceleration sensor used in measurement is configured with a magnetic acceleration sensor having a moving part that is elastically deformed or elastically moved in accordance with the magnitude of acceleration, and in which this moving part is integrated with a magnetic substance of prescribed mass, and acceleration and magnetic force act on the mass of the moving part and magnetic substance. Furthermore, a non-magnetic acceleration sensor in which the magnetic force does not act on the moving part in a magnetic field is configured by integrating a non-magnetic substance of the same mass as the magnetic substance. Acceleration in a magnetic field space is measured using this pair of acceleration sensors, and a magnetic force is measured from a difference between both measured values. A warning is issued when this magnetic force exceeds a prescribed threshold, whereby the breakage of a magnetic object and damage to a person by magnetic attraction due to the magnetic force is prevented.SELECTED DRAWING: Figure 10 |
