| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic transducer which estimates a direction of a piezoelectric material having an anisotropy sealed by a case and a terminal strip from an appearance of the ultrasonic transducer. SOLUTION: In the ultrasonic transducer 9 comprised of the piezoelectric material 21 having the anisotropy and the terminal strip 19 connected to a flange portion 18a as sealing the piezoelectric material 21, the direction of the piezoelectric material 21 is estimated from the appearance of the ultrasonic transducer 9, a deterioration of a transceiver sensitivity is prevented, and a reduction of a measuring accuracy is prevented, by arranging the terminal strip 19 so as to suit a line to join external electrode terminals 22 and 23 to the direction of the piezoelectric material 21. COPYRIGHT: (C)2007,JPO&INPIT
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