| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic ultrasonic probe capable of performing highly-accurate fluid state measurement or nondestructive inspection of a structure. SOLUTION: In this direct type electromagnetic ultrasonic probe constituted of a magnet and a current-carrying means of an alternating current or a measuring means of an induced electromotive force, an ultrasonic wave is transmitted into a measuring object by utilizing electromagnetic interaction, or the ultrasonic wave propagating in the measuring object is received. The measuring object is a conductive measuring object. In the probe constituted of a current terminal pair 5a, 5b connected to an ultrasonic oscillation part 4 or an ultrasonic reception part of the conductive measuring object, and one or more pairs of magnet pairs forming a magnetic field 11 crossing orthogonally or obliquely the current-carrying direction of the alternating current 7 or the propagation direction of the ultrasonic wave 14, the alternating current 7 is directly applied into the conductive measuring object by the current terminal pair 5a, 5b, or the induced electromotive force generated by ultrasonic vibration in the magnetic field is directly measured. COPYRIGHT: (C)2008,JPO&INPIT
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