| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensor for an electromagnetic diagnostic apparatus, capable of detecting an abnormal condition of a conductive rotating body without contacting the rotating body, and suppressing attenuation due to a distance of a magnetic field in order to apply to a large device. SOLUTION: The sensor for the electromagnetic diagnostic apparatus includes a high-temperature superconductive electromagnet having a function of a magnetic field generation source generating a static magnetic field for the rotating body, and magnetic field sensors such as an induction coil and a Hall element for measuring a magnetic field generating a current induced by the rotating body moving in the generated magnetic field, and uses a set of the magnetic sensors and the superconductive electromagnet in measurement. The sensor for the electromagnetic diagnostic apparatus is capable of generating a strong magnetic field with a high current by using a high-temperature superconductive material, suppressing the attenuation due to the distance of the magnetic field by enlarging the electromagnet, and controlling the magnetic field by turning on/off the current. COPYRIGHT: (C)2011,JPO&INPIT |
